Bourns Multifuse Resettable Fuses (R) - Polymer PTC & Ceramic PTC Short Form Catalog (R) Bourns(R) Multifuse(R) Products B ourns(R) Multifuse(R) family of Polymer Positive Temperature Coefficient (PPTC) "resettable fuses" are used in a wide variety of circuit protection applications. See Also Under fault conditions the device resistance will rise exponentially and remain in a "tripped" state, providing continuous circuit protection until the fault is removed. Once the fault is removed and the power cycled, the device will return to its normal low resistance state. Features/Benefits What's New in this Edition * Multifuse(R) automotive short form catalog * Circuit protection selection guide for dedicated Multifuse(R) telecom products * Resettable overcurrent protection * Heat element * Agency approvals - UL, CSA, TUV * Standard footprints and packaging options * Low resistance * RoHS compliance standard * Custom designs available Applications * MF-PSMF Series 0805 surface mount products * MF-RHT Series high temperature radial through-hole products * MF-SM013/250V telecom vertical surface mount products * Expanded MF-NSMF Series 1206 surface mount products * MF-RG Series automotive radial throughhole products * MF-RX/72 Series 72V radial through-hole products * CMF Series ceramic products * Computer * Battery * Automotive * Telecommunications * Industrial * Consumer 2 Multifuse(R) Products - How They Work Amorphous Polymer Crystalline Polymer Conducting Carbon Chains cold Non-conducting Carbon Chains hot Resettable fuses are manufactured in the form of a conductive plastic, which is comprised of a nonconductive crystalline polymer with highly conductive carbon black particles impregnated throughout the crystal lattice. Because of the close proximity of the carbon black particles within the crystal lattice, under normal conditions current is allowed to flow easily through the conductive plastic. However under a fault condition, when there is an increase in current, the conductive plastic heats at the rate of I2R. As the material continues to heat, it eventually reaches the phase transformation temperature, which changes the crystal structure into an amorphous structure. Once the material has transformed into this amorphous structure, the conductive particles become isolated and are unable to conduct current hence the drastic change in material resistance. It is only when the current is removed that the material is allowed to cool and return to its original crystal structure. Multifuse(R) Products - How They Are Used Log Resistance Log Resistance I=V/RMF I=V/RL I=V/RMF I=V/RL I RMF I VS VS +t RMF +t RL RL Temperature Temperature PTC ResponsePTC Characteristic Response Characteristic It is the materials used in resettable fuses that allow them to reset after a fault condition has been removed. Resettable fuses exhibit a positive temperature coefficient effect when heated. While many materials exhibit a PTC effect when heated (an increase in resistance in response to a positive change in temperature), what makes the material used in resettable fuses unique is the fact that the increase in resistance changes exponentially rather than in a linear manner. Typical CircuitTypical Application Circuit Application It is because of this transformation from a low resistance state to a high resistance state that allows the resettable fuse to protect loads. It is this transition from the low resistance state to high resistance state that is referred to as tripping. The time it takes for a resettable fuse to trip is relatively quick, depending on how high the fault current is and it can be as quick as a fraction of a second. Hence they are an excellent form of protection for most applications where sensitive devices need extra protection. 3 Radial Leaded Low Voltage Products Style 1 Style 2 Style 3 A A Style 4 Style 5 A A A B B B Computers and Peripherals General Electronics Automotive Consumer Appliances Electronic Toys C C C MF-R Series Radial Leaded Style 1 C C Style 2 C Side View End View Top and Bottom View Side View MF-R005 0.05 60 40 7.3 22.0 MF-R010 0.10 60 40 2.50 7.50 MF-R017 0.17 60 40 2.00 8.00 MF-R020 0.20 60 40 1.50 4.40 MF-R025 0.25 60 40 1.00 3.00 MF-R030 0.30 60 40 0.76 2.10 MF-R040 0.40 60 40 0.52 1.29 MF-R050 0.50 60 40 0.41 1.17 MF-R065 0.65 60 40 0.27 0.72 MF-R075 0.75 60 40 0.18 0.60 MF-R090 0.90 60 40 0.14 0.47 MF-R090-0-9 0.90 30 40 0.07 0.22 MF-R110 1.10 30 40 0.10 0.27 MF-R135 1.35 30 40 0.065 0.17 MF-R160 1.60 30 40 0.055 0.15 MF-R185 1.85 30 40 0.040 0.11 MF-R250 2.50 30 40 0.025 0.07 MF-R250-0-10 2.50 30 40 0.025 0.07 MF-R300 3.00 30 40 0.020 0.08 MF-R400 4.00 30 40 0.010 0.05 MF-R500 5.00 30 40 0.010 0.05 MF-R600 6.00 30 40 0.005 0.04 MF-R700 7.00 30 40 0.005 0.03 MF-R800 8.00 30 40 0.005 0.03 MF-R900 9.00 30 40 0.005 0.02 MF-R1100 11.00 16 100 0.003 0.014 MF-RG Series Radial Leaded 16 V Model Ihold max. Amperes VVolts at 23 C MF-RX Series* Radial Leaded 16-60 Volts 0.05-11 Amps Hold Current Style 3 A Initial A 1 Hour (R1)C Post-Trip Resistance Dimensions B I Resistance hold mm/(in) B Model Amperes V max. I max. Ohms at 23 C A at 23 C Volts Amps Min. Max. A Max. B Max. C Nom. 8.0 (0.315) 7.4 (0.291) 7.4 (0.291) 7.4 (0.291) 7.4 (0.291) 7.4 (0.291) 7.4 (0.291) 7.9 (0.311) 9.7 (0.382) 10.4 (0.409) 11.7 (0.461) 7.4 (0.291) 8.9 (0.350) 8.9 (0.350) 10.2 (0.402) 12.0 (0.472) 12.0 (0.472) 12.0 (0.472) 12.0 (0.472) 14.4 (0.567) 17.4 (0.685) 19.3 (0.760) 22.1 (0.870) 24.2 (0.953) 24.2 (0.953) 24.2 (0.953) C Model 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 10.2 (0.402) 10.2 (0.402) 10.2 (0.402) 10.2 (0.402) 10.2 (0.402) 10.2 (0.402) Side View 4 MF- RG300 3.0 16 100 0.038 0.0975 MF- RG500 5.0 16 100 0.015 0.0340 Dimensions mm/(in) B Max. 7.1 11.0 (0.28) (0.43) 10.4 14.3 (0.41) (0.56) I max. Amps 1 Hour (R1) Initial Post-Trip Resistance Resistance Ohms at 23 C Min. Max. MF-RX110 1.10 60 40 0.15 0.38 MF-RX135 1.35 60 40 0.12 0.30 MF-RX160 1.60 60 40 0.09 0.22 1 MF-RX185 1.85 60 40 0.08 0.19 1 MF-RX250 2.50 60 40 0.05 0.13 1 MF-RX300 3.00 60 40 0.04 0.10 1 MF-RX375 3.75 60 40 0.03 0.08 Dimensions mm/(in) B Max. C Nom. 13.0 (0.512) 14.5 (0.571) 16.3 (0.642) 17.8 (0.701) 21.3 (0.839) 24.9 (0.980) 28.4 (1.118) 18.0 (0.709) 19.6 (0.772) 21.3 (0.839) 22.9 (0.902) 26.4 (1.039) 30.0 (1.181) 33.5 (1.319) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 10.2 (0.402) 10.2 (0.402) 10.2 (0.402) *Not recommended for new designs, suggest using new MF-RX/72 Series 1 MF-RX/72 Series Radial Leaded 1 1 Model 1 Ihold max. Amperes VVolts at 23 C I max. Amps 1 Hour (R1) Initial Post-Trip Resistance Resistance Ohms at 23 C Min. Max. MF-RX020/72 0.20 72 40 1.50 4.40 1 MF-RX025/72 0.25 72 40 1.00 3.00 1 MF-RX030/72 0.30 72 40 0.76 2.10 MF-RX040/72 0.40 72 40 0.52 1.29 MF-RX050/72 0.50 72 40 0.41 1.17 MF-RX065/72 0.65 72 40 0.27 0.72 MF-RX075/72 0.75 72 40 0.18 0.60 MF-RX090/72 0.90 72 40 0.14 0.47 MF-RX110/72 1.10 72 40 0.15 0.38 MF-RX135/72 1.35 72 40 0.12 0.30 1 2 3 2 2 2 5 5 5 5 5 5 5 72 Volts 0.20 - 3.75 Amps Hold Current 3 1 Style A Max. 1 MF-RX160/72 1.60 72 40 0.09 0.22 2 MF-RX185/72 1.85 72 40 0.08 0.19 2 MF-RX250/72 2.50 72 40 0.05 0.13 2 MF-RX300/72 3.00 72 40 0.04 0.10 2 MF-RX375/72 3.75 72 40 0.03 0.08 Dimensions mm/(in) Style A Max. B Max. C Nom. 7.4 (0.291) 7.4 (0.291) 7.4 (0.291) 7.4 (0.291) 7.9 (0.311) 9.7 (0.382) 10.4 (0.409) 11.7 (0.461) 10.84 (0.427) 12.26 (0.483) 13.94 (0.549) 15.18 (0.598) 17.84 (0.702) 20.67 (0.814) 23.51 (0.926) 12.7 (0.500) 12.7 (0.500) 13.4 (0.528) 13.7 (0.539) 13.7 (0.539) 15.2 (0.598) 16.0 (0.630) 16.7 (0.657) 16.84 (0.662) 18.26 (0.718) 19.94 (0.785) 21.18 (0.833) 23.84 (0.938) 26.67 (1.050) 29.51 (1.161) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 10.2 (0.402) 10.2 (0.402) 10.2 (0.402) 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 MF-RHT Series Radial Leaded High Temperature Operating Temperature -40 C ~ +125 C 1 Hour (R1) Initial Post-Trip Resistance Dimensions Ihold Resistance mm/(in) Model Amperes V max. I max. Ohms at 23 C at 23 C Volts Amps Min. Max. A Max. B Max. C Nom. Style MF-RHT070 0.7 16 40 0.3 0.8 C Max. 5.1 0.7 (0.201 0.028) 5.1 0.7 (0.201 0.028) Ihold max. Amperes VVolts at 23 C 1 Operating Temperature -40 C ~ +85 C 1 Hour (R1) Initial Post-Trip Resistance Resistance I max. Amps Ohms at 23 C Min. Max. A Max. 60 Volts 1.10 - 3.75 Amps Hold Current Style B Top and Bottom View 8.3 (0.327) 12.7 (0.500) 12.7 (0.500) 12.7 (0.500) 12.7 (0.500) 13.4 (0.528) 13.7 (0.539) 13.7 (0.539) 15.2 (0.598) 16.0 (0.630) 16.7 (0.657) 12.2 (0.480) 14.0 (0.551) 18.9 (0.744) 16.8 (0.661) 18.4 (0.724) 18.3 (0.720) 18.3 (0.720) 18.3 (0.720) 24.8 (0.976) 24.9 (0.980) 31.9 (1.256) 29.8 (1.173) 32.9 (1.295) 32.9 (1.295) 32.9 (1.295) Bulk and Tape and Reel Packaging Industry Standard Sizes Applications B B Features 2 MF-RHT200 2.0 16 100 0.045 0.110 2 MF-RHT450 4.5 16 100 0.022 0.054 MF-RHT650 6.5 16 100 0.011 0.026 MF-RHT750 7.5 16 100 0.0094 0.022 4 MF-RHT1300 13.0 16 100 0.0041 0.01 6.86 10.8 5.1 (0.27) (0.425) (0.201) 9.4 14.0 5.1 (0.37) (0.55) (0.201) 10.4 15.6 5.1 (0.41) (0.61) (0.201) 12.7 22.2 5.1 (0.5) (0.88) (0.201) 14.0 23.5 5.1 (0.55) (0.93) (0.201) 23.5 28.7 10.2 (0.925) (1.17) (0.402) Style 3 1 2 2 2 2 Surface Mount Low Voltage Products Style 1 Style 2 C Style 3 A A B C Computers and Peripherals General Electronics Automotive B A End View MF-SM Series (2920 package) Surface Mount (7555 mm) Top and Bottom View Side View 6-60 Volts 0.30-3.00 Amps Hold Current 1 Hour (R1) Initial Post-Trip Dimensions Resistance I Resistance hold mm/(in) Model Amperes V max. I max. Ohms at 23 C at 23 C Volts Amps Min. Max. A Max. B Max. C Nom. MF-SM030 0.30 60 40 0.90 4.80 MF-SM050 0.50 60 40 0.35 1.40 MF-SM075 0.75 30 80 0.23 1.00 MF-SM075/60 0.75 60 10 0.23 1.00 MF-SM100 1.10 30 80 0.12 0.48 MF-SM100/33 1.10 33 40 0.12 0.41 MF-SM125 1.25 15 100 0.07 0.25 MF-SM260 2.60 6 100 0.025 0.075 MF-SM300 3.00 6 100 0.015 0.048 MF-SM Series (3425 package) Surface Mount (8763 mm) 7.98 (0.314) 7.98 (0.314) 7.98 (0.314) 7.98 (0.314) 7.98 (0.314) 7.98 (0.314) 7.98 (0.314) 7.98 (0.314) 7.98 (0.314) 3.18 (0.125) 3.18 (0.125) 3.18 (0.125) 3.18 (0.125) 3.0 (0.118) 3.0 (0.118) 3.0 (0.118) 3.0 (0.118) 3.0 (0.118) 5.44 (0.214) 5.44 (0.214) 5.44 (0.214) 5.44 (0.214) 5.44 (0.214) 5.44 (0.214) 5.44 (0.214) 5.44 (0.214) 5.44 (0.214) MF-NSMF Series (1206 package) 6 - 30 Volts Surface Mount (3216 mm) 0.12 - 2.00 Amps Hold Current Model Style 1 1 1 1 1 1 1 MF-SM150 1.50 15 100 0.06 0.25 MF-SM150/33 1.50 33 40 0.06 0.23 MF-SM185/33 1.80 33 40 0.04 0.15 MF-SM200 2.00 15 100 0.045 0.125 MF-SM250 2.50 15 100 0.024 0.085 9.50 (0.374) 9.50 (0.374) 9.50 (0.374) 9.50 (0.374) 9.50 (0.374) 3.0 (0.118) 3.0 (0.118) 3.0 (0.118) 3.0 (0.118) 3.0 (0.118) 6.71 (0.264) 6.71 (0.264) 6.71 (0.264) 6.71 (0.264) 6.71 (0.264) Ihold max. Amperes VVolts at 23 C 1 Hour (R1) Initial Post-Trip Resistance Resistance I max. Amps Ohms at 23 C Min. Max. MF-NSMF012 0.12 30 10 1.35 8.50 MF-NSMF020 0.20 24 10 0.60 2.60 MF-NSMF035 0.35 6 100 0.30 1.20 MF-NSMF050 0.50 13.2 100 0.15 0.70 MF-NSMF075 0.75 6 100 0.10 0.40 MF-NSMF110 1.10 6 100 0.06 0.20 MF-NSMF150 1.50 6 100 0.03 0.13 MF-NSMF200 2.00 6 100 0.02 0.085 Dimensions mm/(in) Style A Max. B Max. C Max. 3.4 (0.134) 3.4 (0.134) 3.4 (0.134) 3.4 (0.134) 3.4 (0.134) 3.4 (0.134) 3.4 (0.134) 3.5 (0.138) 1.8 (0.071) 1.8 (0.071) 1.8 (0.071) 1.8 (0.071) 1.8 (0.071) 1.8 (0.071) 1.8 (0.071) 1.8 (0.071) 1.1 (0.043) 0.85 (0.033) 0.85 (0.033) 0.85 (0.033) 0.7 (0.028) 0.7 (0.028) 0.7 (0.028) 1.6 (0.063) 2 2 2 2 2 2 2 2 1 1 MF-MSMF Series (1812 package) 6-60 Volts Surface Mount (4532 mm) 0.10-2.60 Amps Hold Current 15-33 Volts 1.50-2.50 Amps Hold Current 1 Hour (R1) Initial Post-Trip Dimensions Resistance I Resistance hold mm/(in) Model Amperes V max. I max. Ohms at 23 C at 23 C Volts Amps Min. Max. A Max. B Max. C Nom. Tape and Reel Packaging Industry Standard Sizes Applications C B Side View Features 1 Hour (R1) Initial Resistance Post-Trip Dimensions Ihold Resistance mm/(in) Model Amperes V max. I max. Ohms at 23 C at 23 C Volts Amps Min. Max. A Max. B Max. C Max. MF-MSMF010 0.10 60 40 0.70 15.0 Style 1 MF-MSMF014 0.14 60 40 0.40 6.50 1 MF-MSMF020 0.20 30 80 0.40 6.00 1 MF-MSMF020/60 0.20 60 40 0.40 6.00 1 MF-MSMF030 0.30 30 10 0.30 3.00 1 MF-MSMF050 0.50 15 100 0.15 1.00 MF-MSMF075 0.75 13.2 100 0.11 0.45 MF-MSMF075/24 0.75 24 40 0.11 0.45 MF-MSMF110 1.10 6 100 0.04 0.21 MF-MSMF110/16 1.10 16 100 0.04 0.21 MF-MSMF125 1.25 6 100 0.035 0.14 MF-MSMF150 1.50 6 100 0.03 0.12 MF-MSMF150/12 1.50 12 100 0.03 0.12 MF-MSMF160 1.60 8 100 0.035 0.099 MF-MSMF200 2.00 8 40 0.020 0.08 MF-MSMF250/16 2.50 16 100 0.015 0.1 MF-MSMF260 2.60 6 100 0.015 0.08 5 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 1.10 (0.043) 1.10 (0.043) 1.10 (0.043) 1.10 (0.043) 1.10 (0.043) 0.85 (0.033) 0.85 (0.033) 0.85 (0.033) 0.85 (0.033) 0.85 (0.033) 0.85 (0.033) 0.85 (0.033) 0.85 (0.033) 0.85 (0.033) 0.85 (0.033) 2.00 (0.078) 0.85 (0.033) Style 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 Surface Mount Low Voltage Products (Continued) MF-PSMF Series (0805 package) 6 - 9 Volts Surface Mount (2010 mm) 0.20 - 1.10 Amps Hold Current MF-SMDF Series (2018 package) 10 - 60 Volts Surface Mount (5050 mm) 0.30 - 2.00 Amps Hold Current 1 Hour (R1) Initial Post-Trip Resistance Dimensions I Resistance hold mm/(in) Model Amperes V max. I max. Ohms at 23 C at 23 C Volts Amps Min. Max. A Max. B Max. C Max. MF-SMDF050 0.55 60 10 0.20 1 MF-SMDF150 1.50 15 40 0.05 0.17 MF-SMDF200 2.00 10 40 0.03 0.1 5.44 4.93 1.09 (0.214) (0.194) (0.043) 5.44 4.93 0.85 (0.214) (0.194) (0.033) 5.44 4.93 0.85 (0.214) (0.194) (0.033) 2 2 MF-SMHT Series 16 Volts Surface Mount/High 1.36 - 1.60 Amps Hold Current Temperature (Working temp: -40 ~ +125 C) 1 Hour (R1) Initial Post-Trip Resistance Dimensions I Resistance hold mm/(in) Model Amperes V max. I max. Ohms at 23 C at 23 C Volts Amps Min. Max. A Max. B Max. C Max. MF-SMHT136 1.36 16 100 0.085 0.330 MF-SMHT160 1.60 16 100 0.050 0.150 7.98 3.0 5.44 (0.314) (0.118) (0.214) 9.5 3.0 6.71 (0.374) (0.118) (0.264) Style 1 1 MF-USMF Series (1210 package) 6 - 30 Volts Surface Mount (3225 mm) 0.05 - 1.75 Amps Hold Current 1 Hour (R1) Initial Post-Trip Resistance Resistance Model Ihold Amperes at 23 C V max. Volts I max. Amps MF-USMF005 0.05 30 10 2.80 50.0 MF-USMF010 0.10 30 10 0.80 15.0 MF-USMF020 0.20 30 10 0.40 5.00 MF-USMF035 0.35 6.0 40 0.20 1.30 MF-USMF050 0.50 13.2 40 0.18 0.90 MF-USMF075 0.75 6.0 40 0.07 0.45 MF-USMF110 1.10 6.0 40 0.05 0.21 MF-USMF150 1.50 6.0 40 0.03 0.11 MF-USMF175 1.75 6.0 40 0.02 0.09 Ohms at 23 C Min. Max. Dimensions mm/(in) Style A Max. B Max. C Max. 3.43 (0.135) 3.43 (0.135) 3.43 (0.135) 3.43 (0.135) 3.43 (0.135) 3.43 (0.135) 3.43 (0.135) 3.43 (0.135) 3.43 (0.135) 2.8 (0.11) 2.8 (0.11) 2.8 (0.11) 2.8 (0.11) 2.8 (0.11) 2.8 (0.11) 2.8 (0.11) 2.8 (0.11) 2.8 (0.11) 1.1 (0.043) 1.1 (0.043) 1.1 (0.043) 0.85 (0.033) 0.85 (0.033) 0.85 (0.033) 0.85 (0.033) 0.85 (0.033) 0.85 (0.033) Ihold Amperes at 23 C V max. Volts I max. Amps MF-PSMF020X 0.20 9 40 0.65 3.5 MF-PSMF035X 0.35 6 40 0.25 1.2 MF-PSMF050X 0.50 6 40 0.15 0.9 MF-PSMF075X 0.75 6 40 0.09 0.35 MF-PSMF110X 1.10 6 40 0.06 0.21 Style 2 2 2 2 2 2 2 2 2 2 6 1 Hour (R1) Initial Post-Trip Resistance Resistance Model Ohms at 23 C Min. Max. Dimensions mm/(in) Style A Max. B Max. C Max. 2.3 (0.091) 2.3 (0.091) 2.3 (0.091) 2.3 (0.091) 2.3 (0.091) 1.5 (0.059) 1.5 (0.059) 1.5 (0.059) 1.5 (0.059) 1.5 (0.059) 0.85 (0.033) 0.85 (0.033) 0.85 (0.033) 1.25 (0.049) 1.25 (0.049) 2 2 2 2 2 Strap Products Standard Style "S" Style Features SLIT A Axial/Radial Leaded Weldable Nickel Terminal Very Low Internal Resistance "RU" Style 0.5 4.0 X NOMINAL (.020) (.157) A A B Applications B B C C C Rechargeable Battery Packs for Cellular Phones & Laptop Computers MF-SVS Series (Lowest Available Resistance) 10 Volts Axial Leaded Strap 1.7-2.3 Amps Hold Current MF-VS Narrow Body Series (Low Resistance Narrow) 12 Volts Axial Leaded Strap 1.7-2.1 Amps Hold Current 1 Hour (R1) Initial Post-Trip Resistance Dimensions I Resistance hold mm/(in) Model Amperes V max. I max. Ohms at 23 C at 23 C Volts Amps Min. Max. A Max. B Max. C Max. 1 Hour (R1) Initial Post-Trip Resistance Dimensions Ihold Resistance mm/(in) Model Amperes V max. I max. Ohms at 23 C at 23 C Volts Amps Min. Max. A Max. B Max. C Max. MF-SVS170 1.7 10 100 0.018 0.064 MF-SVS170N 1.7 10 100 0.018 0.064 MF-SVS175 1.75 10 100 0.017 0.063 MF-SVS175N 1.75 10 100 0.017 0.063 MF-SVS175NL 1.75 10 100 0.017 0.063 MF-SVS210 2.1 10 100 0.010 0.040 MF-SVS210N 2.1 10 100 0.010 0.040 MF-SVS230 2.3 10 100 0.010 0.036 MF-SVS230N 2.3 10 100 0.010 0.036 18.0 (0.709) 24.0 (0.945) 18.0 (0.709) 24.0 (0.945) 28.0 (1.102) 23.1 (0.909) 32.0 (1.260) 23.1 (0.909) 32.0 (1.260) 5.5 (0.216) 3.9 (0.153) 5.5 (0.216) 3.9 (0.153) 3.9 (0.153) 5.5 (0.216) 3.9 (0.153) 5.5 (0.216) 3.9 (0.153) 0.9 (0.035) 0.9 (0.035) 0.9 (0.035) 0.9 (0.035) 0.9 (0.035) 0.9 (0.035) 0.9 (0.035) 0.9 (0.035) 0.9 (0.035) Style Std. MF-VS170N 1.7 12 100 0.030 0.105 Std. MF-VS175NL 1.75 12 100 0.029 0.102 Std. MF-VS210N 2.1 12 100 0.018 0.060 MF-VS170S 1.7 16 100 0.030 0.105 MF-VS210 2.1 16 100 0.018 0.060 MF-VS210L 2.1 16 100 0.018 0.060 MF-VS210S 2.1 16 100 0.018 0.060 18.0 (0.709) 18.0 (0.709) 23.1 (0.909) 26 (1.023) 23.1 (0.909) 5.5 (0.217) 5.5 (0.217) 5.5 (0.217) 5.5 (0.217) 5.5 (0.217) 0.9 Std. (0.035) 0.9 Std. (0.035) 0.9 Std. (0.035) Std. MF-LR Series (Low Resistance) Axial Leaded Strap Std. Std. 10-20 Volts 1.90-9.00 Amps Hold Current 1 Hour (R1) Initial Resistance Post-Trip Dimensions Ihold Resistance mm/(in) Model Amperes V max. I max. Ohms at 23 C at 23 C Volts Amps Min. Max. A Max. B Max. C Max. Std. Std. MF-LR190S 1.90 15 100 0.039 0.102 MF-VS Series (Low Resistance & Low Temp.) 16 Volts Axial Leaded Strap 1.7-2.4 Amps Hold Current MF-VS170 1.7 16 100 0.030 0.105 3.9 (0.154) 3.9 (0.154) 3.9 (0.154) Std. MF-LR190 1.90 15 100 0.039 0.102 1 Hour (R1) Initial Post-Trip Resistance Dimensions I Resistance hold mm/(in) Model Amperes V max. I max. Ohms at 23 C at 23 C Volts Amps Min. Max. A Max. B Max. C Max. 24.0 (0.945) 28.0 (1.102) 32.0 (1.260) Style MF-LR260 2.60 15 100 0.020 0.083 MF-LR260S 2.60 15 100 0.020 0.083 MF-LR380 3.80 15 100 0.013 0.037 Style MF-LR450 4.50 16 100 0.011 0.028 0.9 Std. (0.035) 0.9 S (0.035) 0.9 Std. (0.035) 0.9 Std. (0.035) 0.9 S (0.035) MF-LR550 5.50 10 100 0.009 0.022 MF-LR600 6.00 10 100 0.007 0.019 MF-LR730 7.30 10 100 0.006 0.015 MF-LR730/20 7.30 20 100 0.006 0.015 MF-LR900/20 9.00 20 100 0.006 0.014 7 22.1 (0.870) 22.1 (0.870) 23.1 (0.909) 23.1 (0.909) 26.0 (1.024) 26.0 (1.024) 37.0 (1.457) 26.0 (1.024) 30 (1.18) 29.1 (1.146) 47.6 (1.874) 5.2 (0.205) 5.2 (0.205) 5.2 (0.205) 5.2 (0.205) 7.5 (0.295) 10.5 (0.414) 7.5 (0.295) 15.9 (0.626) 15 (0.590) 14.5 (0.571) 8.5 (0.335) 1.0 (0.039) 1.0 (0.039) 1.0 (0.039) 1.0 (0.039) 1.0 (0.039) 1.0 (0.039) 1.0 (0.039) 1.0 (0.039) 1.0 (0.039) 1.0 (0.039) 1.3 (0.051) Style Std. S Std. S Std. Std. Std. Std. Std. Std. Std. Strap Products (Continued) MF-LS Series (Lower Trip Temperature) 15-24 Volts Axial Leaded Strap 1.0-3.4 Amps Hold Current MF-S Series (Standard) Axial Leaded Strap 1 Hour (R1) Initial Post-Trip Resistance Dimensions Ihold Resistance mm/(in) Model Amperes V max. I max. Ohms at 23 C at 23 C Volts Amps Min. Max. A Max. B Max. C Max. 1 Hour (R1) Initial Post-Trip Resistance Dimensions I Resistance hold mm/(in) Model Amperes V max. I max. Ohms at 23 C at 23 C Volts Amps Min. Max. A Max. B Max. C Max. MF-LS100S 1.0 24 100 0.070 0.260 MF-LS180 1.8 24 100 0.040 0.120 MF-LS180L 1.8 24 100 0.040 0.120 MF-LS180S 1.8 24 100 0.040 0.120 MF-LS190 1.9 24 100 0.030 0.100 MF-LS190RU 1.9 15 100 0.030 0.100 MF-LS260 2.6 24 100 0.025 0.076 MF-LS300 3.0 24 100 0.015 0.055 MF-LS340 3.4 24 100 0.016 0.050 23.1 (0.909) 26.0 (1.024) 37.5 (1.48) 26.0 (1.024) 23.4 (0.921) 20.8 (0.819) 26.0 (1.024) 31.8 (1.252) 26.0 (1.024) 5.2 (0.205) 5.2 (0.205) 5.6 (0.22) 5.2 (0.205) 11.0 (0.433) 14.3 (0.563) 11.9 (0.469) 13.5 (0.531) 15.9 (0.626) 1.0 (0.039) 1.0 (0.039) 1.0 (0.039) 1.0 (0.039) 1.1 (0.043) 0.76 (0.030) 1.0 (0.039) 1.1 (0.043) 1.0 (0.039) Style S MF-S120 1.20 15 100 0.085 0.220 Std. MF-S120S 1.20 15 100 0.085 0.220 Std. MF-S150 1.50 15 100 0.050 0.113 S MF-S175 1.75 15 100 0.050 0.120 Std. MF-S175S 1.75 15 100 0.050 0.120 RU MF-S200 2.00 30 100 0.030 0.080 Std. MF-S350 3.50 30 100 0.017 0.040 Std. MF-S420 4.20 30 100 0.012 0.040 Features A C Applications Model Ihold max. Amperes VVolts at 23 C Lithium cells Battery cells Powered toys Motors 15 Volts 2.5 - 12.2 Amps Hold Current I max. Amps 1 Hour (R1) Initial Post-Trip Resistance Resistance Ohms at 23 C Min. Max. MF-D 2.5 15 10 0.015 0.032 MF-D 3.5 15 20 0.015 0.032 MF-D 5.5 15 40 0.014 0.30 MF-D 12.2 15 50 0.007 0.017 Dimensions mm/(in) Style A Max. B Max. C Max. 14.4 (0.567) 16.4 (0.646) 16.08 (0.633) 2.4 (0.945) 6.3 (0.248) 10.0 (0.394) 9.0 (0.354) 0.36 (0.014) 0.36 (0.014) 0.36 (0.014) 0.36 (0.014) - 5.2 (0.205) 5.2 (0.205) 11.0 (0.433) 5.2 (0.205) 5.2 (0.205) 11.0 (0.433) 13.5 (0.531) 13.6 (0.535) 1.0 (0.039) 1.0 (0.039) 1.1 (0.043) 1.0 (0.039) 1.0 (0.039) 1.1 (0.043) 1.1 (0.043) 1.1 (0.043) Custom designs to meet appropriate applications Compatible with current industry standards Overcurrent and overtemperature protection Standard and low-temperature material Patents pending Style 1 MF-D Series* Disk Configuration 22.1 (0.870) 22.1 (0.870) 23.4 (0.921) 23.1 (0.909) 23.1 (0.909) 23.4 (0.921) 31.8 (1.252) 32.4 (1.276) Std. Disk & Chip Type PTC Products B 15-30 Volts 1.20-4.20 Amps Hold Current 1 1 1 1 *For ordering information, contact your Bourns representative. 8 Style Std. S Std. Std. S Std. Std. Std. Telecom Products Style 1 Designed to Withstand Lightning Surge Designed to Withstand AC Power Cross Available in Matched Resistance "Bins" Style 3 Style 2 A Features A A C B Applications B B CPE and Central Office Access Equipment Hybrid-Fiber Coax C C Style 4 Style 5 A B A B C C MF-R/90 Series Radial Leaded 1 Hour (R1) Initial Post-Trip Resistance Dimensions I Resistance hold mm/(in) Model Amperes V max. I max. Ohms at 23 C at 23 C Volts Amps Min. Max. A Max. B Max. C Nom. MF-R055/90 0.55 90 10 0.45 2.0 MF-R055/90U 0.55 90 10 0.45 2.0 MF-R075/90 0.75 90 10 0.37 1.65 10.9 (0.43) 10.3 (0.4) 11.9 (0.47) 16.7 (0.65) 16.7 (0.65) 15.5 (0.61) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 60 Volts 600 Vrms short duration interrupt 0.15-0.16 Amps Hold Current MF-R/600 Series Radial Leaded 90 Volts 0.55-0.75 Amps Hold Current 1 Hour (R1) Initial Post-Trip Resistance Dimensions I Resistance hold mm/(in) Model Amperes V max. I max. Ohms at 23 C at 23 C Volts Amps Min. Max. A Max. B Max. C Max. Style 1 MF-R015/600 0.15 60 3.0 6.0 22.0 1 MF-R015/600-A 0.15 60 3.0 7.0 20.0 1 MF-R015/600-B 0.15 60 3.0 9.0 22.0 MF-R015/600-F 0.15 60 3.0 7.0 22.0 MF-RX/250 Series (Fast Trip, Small Package) Radial Leaded 60 Volts 250 Vrms short duration interrupt 0.12-0.18 Amps Hold Current 1 Hour (R1) Initial Post-Trip Resistance Dimensions I Resistance hold mm/(in) Model Amperes V max. I max. Ohms at 23 C at 23 C Volts Amps Min. Max. A Max. B Max. C Max. MF-RX012/250 0.12 60 3.0 4.0 16.0 MF-RX012/250-A 0.12 60 3.0 7.0 16.0 MF-RX012/250-C 0.12 60 3.0 5.5 14.0 MF-RX012/250-F 0.12 60 3.0 6.0 16.0 MF-RX012/250-1 0.12 60 3.0 6.0 16.0 MF-RX012/250-2 0.12 60 3.0 8.0 16.0 MF-RX012/250-T 0.12 60 3.0 7.0 16.0 MF-RX012/250U 0.12 60 3.0 6.0 16.0 MF-RX014/250 0.145 60 3.0 3.0 14.0 MF-RX014/250-A 0.145 60 3.0 3.0 12.0 MF-RX014/250-B 0.145 60 3.0 4.5 14.0 MF-RX014/250-T 0.145 60 3.0 5.4 14.0 MF-RX014/250U 0.145 60 3.0 3.5 12.0 MF-RX018/250 0.18 60 10.0 0.8 4.0 MF-RX018/250U 0.18 60 10.0 0.8 4.0 6.5 (0.256) 6.5 (0.256) 6.5 (0.256) 6.5 (0.256) 6.5 (0.256) 6.5 (0.256) 6.5 (0.256) 6.0 (0.236) 6.5 (0.256) 6.5 (0.256) 6.5 (0.256) 6.5 (0.256) 6.0 (0.236) 11.0 (0.433) 10.4 (0.409) 11.0 (0.433) 11.0 (0.433) 11.0 (0.433) 11.0 (0.433) 11.0 (0.433) 11.0 (0.433) 11.0 (0.433) 10.0 (0.394) 11.0 (0.433) 11.0 (0.433) 11.0 (0.433) 11.0 (0.433) 10.0 (0.394) 13.6 (0.535) 12.6 (0.496) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) MF-R016/600 0.16 60 3.0 4.0 18.0 MF-R016/600-A 0.16 60 3.0 4.0 16.0 MF-R016/600-1 0.16 60 3.0 4.0 17.0 Style 2 12.6 (0.496) 12.6 (0.496) 12.6 (0.496) 12.6 (0.496) 12.6 (0.496) 12.6 (0.496) 12.6 (0.496) 6.0 (0.236) 6.0 (0.236) 6.0 (0.236) 6.0 (0.236) 6.0 (0.236) 6.0 (0.236) 6.0 (0.236) 2 1 Hour (R1) Initial Resistance Post-Trip Dimensions Ihold Resistance mm/(in) Model Amperes V max. I max. Ohms at 23 C at 23 C Volts Amps Min. Max. A Max. B Max. C Max. 2 MF-SM013/250-2 0.13 60 3.0 6.5 20.0 2 MF-SM013/250-A-2 0.13 60 3.0 6.5 20.0 2 MF-SM013/250-B-2 0.13 60 3.0 9.0 20.0 3 MF-SM013/250-C-2 0.13 60 3.0 7.0 20.0 2 2 2 2 2 2 2 2 60 Volts 250 Vrms short duration interrupt 0.13 Amps Hold Current MF-SM013/250 Series Surface Mount 2 13.5 (0.531) 13.5 (0.531) 13.5 (0.531) 13.5 (0.531) 16.0 (0.629) 16.0 (0.629) 16.0 (0.629) Style 9.4 (0.370) 9.4 (0.370) 9.4 (0.370) 9.4 (0.370) 3.7 (0.146) 3.7 (0.146) 3.7 (0.146) 3.7 (0.146) 7.4 (0.291) 7.4 (0.291) 7.4 (0.291) 7.4 (0.291) Style 4 4 4 4 2 2 MF-SM013/250V Series Surface Mount 2 2 Model 3 2 MF-SM013/250V 3 9 60 Volts 250 Vrms short duration interrupt 0.13 Amps Hold Current 1 Hour (R1) Initial Post-Trip Ihold Resistance Resistance max. I max. Amperes VVolts Amps Ohms at 23 C at 23 C Min. Max. 0.13 250 3.0 6.5 20.0 Dimensions mm/(in) Style A Max. B Max. 6.6 (0.260) 7.4 3.2 (0.291) (0.126) C Max. 5 Ceramic PTC Products Style 1 Style 2 A Style 4 Style 3 A B Features C B A B C A B C C Applications Style 6 Style 5 A C A B B Model CMF-RL10 CMF-RL10-10 Induction Voltage Withstand VAC 650 650 Rated Resistance (RN) Ohms Tolerance 10 20 % 10 10 % Hold Trip Current Current Amps at 25 C Amps at 25 C 0.14 0.14 0.3 0.3 CMF-RL25U 650 35 20 % 0.060 0.15 650 35 20 % 0.075 0.15 CMF-RL35-10 650 35 10 % 0.075 0.15 CMF-RL35A 650 35 10 % 0.075 0.15 CMF-RL35A-10 650 35 10 % 0.075 0.15 CMF-RL50 650 50 20 % 0.065 0.15 CMF-RL50-10 650 50 10 % 0.065 0.15 CMF-RL50A 650 50 20 % 0.05 0.10 CMF-RL50A-10 650 50 10 % 0.05 0.10 CMF-RL55 650 55 20 % 0.065 0.15 CMF-RL55-10 650 55 10 % 0.065 0.15 CMF-RL55A 650 55 20 % 0.05 0.10 CMF-RL55A-10 650 55 10 % 0.05 0.10 Rated Resistance (RN) Dimensions mm/(in) Model Style A Max. B Max. C Nom. 9.5 (0.374) 9.5 (0.374) 5.2 (0.205) 9.8 (0.386) 9.8 (0.386) 7.5 (0.295) 7.5 (0.295) 9.8 (0.386) 9.8 (0.386) 7.5 (0.295) 7.5 (0.295) 9.8 (0.386) 9.8 (0.386) 7.5 (0.295) 7.5 (0.295) 4.5 (0.177) 4.5 (0.177) 3.5 (0.138) 5.0 (0.197) 5.0 (0.197) 5.6 (0.220) 5.6 (0.220) 5.0 (0.197) 5.0 (0.197) 5.6 (0.220) 5.6 (0.220) 5.0 (0.197) 5.0 (0.197) 5.6 (0.220) 5.6 (0.220) 13.5 (0.531) 13.5 (0.531) 5.2 (0.205) 13.5 (0.531) 13.5 (0.531) 13.0 (0.512) 13.0 (0.512) 13.5 (0.531) 13.5 (0.531) 13.0 (0.512) 13.0 (0.512) 13.5 (0.531) 13.5 (0.531) 13.0 (0.512) 13.0 (0.512) Hold Trip Current Current Amps at 25 C Amps at 25 C Ohms Tolerance CMF-RLC50 650 50 20 % 0.065 0.15 CMF-RLC50-10 650 50 10 % 0.065 0.15 Dimensions mm/(in) A Max. B Max. Induction Voltage Withstand VAC Rated Resistance (RN) Ohms Tolerance 230 V Rated 0.5 Ohms Resistance Matching in Housing Hold Trip Current Current Amps at 25 C Amps at 25 C 1 CMF-SD25 600 25 20 % 0.13 0.26 1 CMF-SD25-10 600 25 10 % 0.13 0.26 2 CMF-SD25A 600 25 20 % 0.13 0.26 1 CMF-SD25A-10 600 25 10 % 0.13 0.26 1 CMF-SD35 600 35 20 % 0.10 0.20 1 CMF-SD35-10 600 35 10 % 0.10 0.20 1 CMF-SD35A 600 35 20 % 0.10 0.20 1 CMF-SD35A-10 600 35 10 % 0.10 0.20 1 CMF-SD50 600 50 20 % 0.09 0.19 1 CMF-SD50-10 600 50 10 % 0.09 0.19 1 CMF-SD50A 600 50 20 % 0.09 0.19 1 CMF-SD50A-10 600 50 10 % 0.09 0.19 Dimensions mm/(in) Style A Max. B Max. C Nom. 9.0 (0.354) 9.0 (0.354) 7.15 (0.281) 7.15 (0.281) 9.0 (0.354) 9.0 (0.354) 7.15 (0.281) 7.15 (0.281) 9.0 (0.354) 9.0 (0.354) 7.15 (0.281) 7.15 (0.281) 10.8 (0.425) 10.8 (0.425) 8.5 (0.335) 8.5 (0.335) 10.8 (0.425) 10.8 (0.425) 8.5 (0.335) 8.5 (0.335) 10.8 (0.425) 10.8 (0.425) 8.5 (0.335) 8.5 (0.335) 10.2 (0.402) 10.2 (0.402) 8.1 (0.319) 8.1 (0.319) 10.2 (0.402) 10.2 (0.402) 8.1 (0.319) 8.1 (0.319) 10.2 (0.402) 10.2 (0.402) 8.1 (0.319) 8.1 (0.319) 5 5 5 5 5 5 5 5 5 5 5 5 1 1 1 230 Volts 0.5 Ohms Packaging Resistance Matching CMF-RD Series Twin Pack/Through-hole Model Ceramic Housing 0.5 Ohms Packaging Resistance Matching CMF-RLC Series Through-hole/Ceramic Case Induction Voltage Withstand VAC CMF-SD Series Twin Pack/SMD 230 Volts 0.5 Ohms Packaging Resistance Matching CMF-RL35 Model Used as secondary overcurrent protection devices in: Customer Premise Equipment (CPE) Central Office Equipment (CO) Access Equipment C CMF-RL Series Radial Leaded Ceramic PTCs for telecom overcurrent protection Wide range of form factors for most applications Aids telecom compliance with: - ITU-T K.20/21/45 - Telcordia GR-1089-CORE - UL 60950, 3rd Ed. Narrow and matched resistance tolerances Style Induction Voltage Withstand VAC Rated Resistance (RN) Ohms Tolerance Hold Trip Current Current Amps at 25 C Amps at 25 C CMF-RD50 600 50 20 % 0.09 0.19 CMF-RD50-10 600 50 10 % 0.09 0.19 Dimensions mm/(in) A Max. B Max. Style C Nom. 9.0 10.2 9.5 (0.354) (0.402) (0.446) 9.0 10.2 9.5 (0.354) (0.402) (0.446) 4 4 C Nom. 9.2 4.7 9.6 (0.362) (0.185) (0.378) 9.2 4.7 9.6 (0.362) (0.185) (0.378) 3 3 Four CPTCs in One Package 0.5 Ohms Resistance Matching in Housing CMF-RQ Series Quad Pack/Through-hole Model 10 Induction Voltage Withstand VAC Rated Resistance (RN) Ohms Tolerance Hold Trip Current Current Amps at 25 C Amps at 25 C CMF-RQ50 600 50 20 % 0.09 0.19 CMF-RQ50-10 600 50 10 % 0.09 0.19 Dimensions mm/(in) A Max. B Max. Style C Nom. 10.0 21.0 11.0 (0.393) (0.826) (0.433) 10.0 21.0 11.0 (0.393) (0.826) (0.433) 6 6 How To Order MF -RX 012/250 U - A 05 - 2 Bourns(R) Multifuse(R) Product Designator Series D LR LS MSMF NSMF PSMF R RG RHT RX S SM SMDF SMHT SVS USMF VS VSN = Disk Configuration = Axial Leaded Strap = Axial Leaded Strap = Surface Mount = Surface Mount = Surface Mount = Radial Leaded = Radial Leaded = High Temp. Radial Mount = Radial Leaded = Axial Leaded Strap = Surface Mount = Surface Mount = High Temp. Surface Mount = Axial Leaded Strap = Surface Mount = Axial Leaded Strap = Axial Leaded Strap Definitions Agency Approvals Bourns(R) PPTCs are certified under UL, CSA, IEC and TUV registration programs. Current, Hold (Ihold) The maximum current a PPTC device can pass without interruption. Current, Maximum (Imax) The maximum fault current a PPTC device can withstand without damage at the rated voltage. Current, Trip (Itrip) The minimum current that will switch a PPTC from the low resistance to the high resistance state. Fault Current The peak current that flows through a PPTC or wire during a short circuit or arc back. Positive Temperature Coefficient (PTC) A characteristic of the PPTC device that describes the large increase in resistance as the device reaches its switching (trip) temperature. Hold Current, Ihold Voltage Options: Max. Interrupt Voltage, V Construction Options: N = Narrow Device Option (3.6 mm)* S = Slotted Lead Option (one side)* SS = Slotted Lead Option (two sides)* U = Uncoated T = Pretripped ** Resistance, Post Trip (R1max) The maximum resistance one hour after a PPTC device has been tripped and power has been removed. Resistance, Post Reflow (R1max) The maximum resistance one hour after a PPTC surface mount device has been reflow soldered. Resistance Sorted** (see individual data sheets) Resistance Bins of 0.5 *** 05 = 0.5 Voltage, Maximum (Vmax) The maximum voltage a PPTC device can withstand without damage at the rated current. Packaging Options - 0 = Bulk Packaging - 2 = Tape and Reel - AP = Ammo-Pak Product Selection Worksheet *Axial Leaded Strap products only. **Telecom Radial Leaded products only. ***Radial Leaded products only. 1. What is the normal circuit operating current (Ihold) 2. What is the maximum circuit voltage (Vmax) 3. What is the maximum fault current (Imax) 4. What is the preferred form factor Agency File Numbers UL File Number................................................E 174545S CSA File Number..............................................CA 110338 TUV File Number.............................................R2057213 11 Note: Other factors including thermal derating and time to trip characteristics may be important application considerations. Please refer to the full Bourns(R) data sheet of each product at www.bourns.com/multifuse. Worldwide Sales Offices Country Benelux: Brazil: China: France: Germany: Ireland/UK: Italy: Japan: Malaysia (KL Office): Malaysia (Penang Office): Singapore: Switzerland: Taiwan: UK/Ireland: USA: Phone +41 (0)41 768 5555 +55 11 5505 0601 +86 21 64821250 +33 (0)2 5473 5151 +49 (0)69 800 78212 +44 (0)1276 691087 +41 (0)41 768 5555 +81 49 269 3204 +60 3 71183138 +60 4 6581771 +65 63487227 +41 (0)41 768 5555 +886 2 25624117 +44 (0)1276 691087 +1-951-781-5500 Fax +41 (0)41 768 5510 +55 11 5505 4370 +86 21 64821249 +33 (0)2 5473 5156 +49 (0)69 800 78299 +44 (0)1276 691088 +41 (0)41 768 5510 +81 49 269 3297 +60 3 71183139 +60 4 6582771 +65 63481272 +41 (0)41 768 5510 +886 2 25624116 +44 (0)1276 691088 +1-951-781-5006 Non-Listed European Countries: +41 (0)41 768 5555 +41 (0)41 768 5510 Technical Assistance Region Asia-Pacific: Europe: Americas: Phone +886 2 25624117 +41 (0)41 768 5555 +1-951-781-5500 Fax +886 2 25624116 +41 (0)41 768 5510 +1-951-781-5700 www.bourns.com Bourns(R) products are available through an extensive global network of representatives and distributors. To obtain technical applications assistance, a quotation, or to place an order, contact a Bourns representative in your area. Specifications subject to change without notice. Actual performance in specific customer applications may differ due to the influence of other variables. Customers should verify actual device performance in their specific applications. Circuit Protection Solutions "Bourns" and "Multifuse" are registered trademarks of Bourns, Inc. in the U.S. and other countries. COPYRIGHT(c) 2008, BOURNS, INC. * LITHO IN U.S.A. * WAG * 03/08 * 10M/MF0714