FUSES / SICHERUNGEN Resettable fuses PFRT Typical Time to Trip at 23 C Wire leaded PTC-Fuses Type PFRT 100 High voltage surge capabilities Compliance to ITU K.20/K.21 specifications Agency recognition: UL, CSA, TUV 100 Time to trip (s) 10 PFRT.018.250.U 1 PFRT.014.250 & PFRT.014.250.U PFRT.012.250 & PFRT.012.250.U PFRT.011.250.U 0.10 PFRT.008.250 & PFRT.008.250.U 0.01 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3 50 75 100 Fault current (A) Typical Part Marking Dimensions A E Layout may vary Manufacturer's Trademark Part identification Restance bin B Date code (First digit = Last digit of year; next three digits = day of year) D Lot No. (T = Taiwan, S = Xiamen) C Applications Used as a secondary overcurrent protection device in: * Customer Premise Equipment (CPE) * Central Office (CO) * Subscriber Line Interface Cards (SLIC) Environmental Characteristics Operating/Storage Temperature / Einsatz/Lagertemp. Maximum Device Surface Temperature in Tripped State / Passive Aging / passive Alterung Humidity Aging / Feuchtigkeitsalterung Thermal Shock / Thermischer Schock Solvent Resistance / Losungsmittel-Bestandigkeit Lead Solerability / Lotbarkeit Flammability / Entflammbarkeit Vibration -45 C to +85 C 125 C +85 C, 1000 hours / Std. +60 C, 1000 hours / Std. +85 C, 85% R.H. 500 hours / Std. MIL-STD-202F, Method 107G +125 C/-55 C, 10 times / Zyklen MIL-STD-202, Method 215B ANSI/J-STD-002 IEC 695-2-2 MIL-STD-883C, Method 2007.1, Condition A Test Procedures And Requirements For Model PFRT Series Test / Test Test Conditions / Bedingungen Visual/Mech. / visuell/mech. Verify dimensions and materials / Kontrolle Abmess./Mat. Resistance / Widerstand In still air @ 23 C / bei ruhiger Luft 23 C Time to Trip / Trip-Zeit 5 times Ihold, Vmax 23 C / 5-facher Haltestrom Hold Current / Haltestrom 30 min. at Ihold / bei Haltestrom Trip Cycle Life / Trip-Zyklen Vmax, Imax, 100 cycles / Zyklen Trip Endurance / Zeit im Tripzustand Vmax, 48 hours / Stunden 2% typ. resist. change 3% typ. resist. change 3% typ. resist. change 10% typ. resist. change 15% typ. resist. change No change No Flame for 60 sec. No change Accept/Reject Criteria Per MF physical description Rmin R Rmax T max. time to trip (sec.) No trip No arcing or burning No arcing or burning www.schurter.com 21 FUSES / SICHERUNGEN Resettable fuses PFRT Electrical Characteristics Type / Typ Max. Oper. Voltage / Max. Interrupt Ratings / Volts Volts PFRT.008.250.U PFRT.008.250 PFRT.011.250.U PFRT.012.250 PFRT.012.250.U PFRT.014.250 PFRT.014.250.U PFRT.018.250.U Amps max. 250 250 250 250 250 250 250 250 60 60 60 60 60 60 60 60 Hold Current / max. 3.0 3.0 3.0 3.0 3.0 3.0 3.0 10.0 Amps at / bei 23 C Ih 0.08 0.08 0.11 0.12 0.12 0.14 0.14 0.18 Initial Resistance / One Hour Post-Trip Resistance / Ohms Ohms at / bei 23 C at / bei 23 C min. max. 14.0 20.0 15.0 22.0 5.0 9.0 4.0 8.0 6.0 10.0 3.0 6.0 3.5 6.5 0.8 2.0 Ohms at / bei 23 C 33.0 33.0 16.0 16.0 16.0 12.0 12.0 4.0 Dimensions A max. 4.8 (0.189) 5.3 (0.209) 5.3 (0.209) 6.5 (0.256) 6.0 (0.236) 6.5 (0.256) 6.0 (0.236) 6.0 (0.236) Type / Typ PFRT.008.250.U PFRT.008.250 PFRT.011.250.U PFRT.012.250 PFRT.012.250.U PFRT.014.250 PFRT.014.250.U PFRT.018.250.U B max. 9.1 (0.358) 9.3 (0.366) 9.4 (0.370) 11.0 (0.433) 10.0 (0.394) 11.0 (0.433) 10.0 (0.394) 10.0 (0.394) C max. 5.1 0.7 (0.201 0.028) 5.1 0.7 (0.201 0.028) 5.1 0.7 (0.201 0.028) 5.1 0.7 (0.201 0.028) 5.1 0.7 (0.201 0.028) 5.1 0.7 (0.201 0.028) 5.1 0.7 (0.201 0.028) 5.1 0.7 (0.201 0.028) D nom. 4.7 (0.185) 4.7 (0.185) 4.7 (0.185) 4.7 (0.185) 4.7 (0.185) 4.7 (0.185) 4.7 (0.185) 4.7 (0.185) E nom. 5.0 (0.197) 5.0 (0.197) 5.0 (0.197) 5.0 (0.197) 5.0 (0.197) 5.0 (0.197) 5.0 (0.197) 5.0 (0.197) Physical Characteristics Style Lead Dia. Material 1 0.65 Sn/Cu (0.026) 1 0.65 Sn/Cu (0.026) 1 0.65 Sn/Cu (0.026) 1 0.65 Sn/Cu (0.026) 1 0.65 Sn/Cu (0.026) 1 0.65 Sn/Cu (0.026) 1 0.65 Sn/Cu (0.026) 1 0.65 Sn/Cu (0.026) Dimensions in mm/inches Packaging options: Bulk: 500 pcs. per bag, Tape and reel: 3000 pcs. per reel How To Order PF RT .xxx .xxx .x .x .x PTC-Fuse Series RT = Radial Leaded Telecom Component Hold Current, Ihold 008-018 (0.08-018 Amps) Max. Interrupt Voltage, V 250 (250 V) Resistance Sorted E = 7-12 , F = 6-10 , G = 6-9 , H = 8-10,5 .B = Bare Disc .U = Uncoated Parts - = Bulk Packaging .2 = Tape & Reel Thermal Derating Chart-Ihold (Amps) Type / Typ PFRT.008.250 PFRT.011.250 PFRT.012.250 PFRT.014.250 PFRT.018.250 22 www.schurter.com Ambient Operating Temperature -40 C -20 C 0 C 0.124 0.110 0.095 0.171 0.151 0.131 0.186 0.165 0.143 0.255 0.199 0.172 0.269 0.240 0.211 23 C 0.080 0.110 0.120 0.145 0.180 40 C 0.066 0.091 0.099 0.119 0.153 50 C 0.059 0.081 0.088 0.106 0.138 60 C 0.051 0.071 0.077 0.091 0.123 70 C 0.044 0.061 0.066 0.080 0.109 85 C 0.033 0.046 0.050 0.060 0.087