FUSES / SICHERUNGEN Resettable fuses / Ruckstellende Sicherungen PFRT Telecom / Telecom 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 121 FUSES / SICHERUNGEN Resettable fuses / Ruckstellende Sicherungen PFRT Telecom / Telecom 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 Restistance 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.018.250 122 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