250R Series - 250V POLYFUSE® Lead-Free Radial Leaded Resettable PPTC for Telecom Protection

DataSheet:Resettable PTCs 250R Datasheet

The 250R series is designed to protect against short duration high voltage fault currents (power cross or power induction surge) typically found in telecom applications (250Vrms). The series can be used to help telecom networking equipment meet the protection requirements specified in ITU K.20 and K.21. Features:

RoHS compliant and lead-free
Fast time-to-trip
Binned and sorted narrow resistance ranges available
0.08 — 0.18 Hold current range, 60VDC operating voltage
250VAC interrupt rating

Ordering Information

Catalog #	IHold (A)	ITRIP(A)	Max Volts(V)	IMAX(A)	PDMAX (W)	RIL(Ω)	R1max(Ω)	MaxTimeToTrip(A)	MaxTimetoTrip Time(Sec)	Temp(deg C)
250R080	0.08	0.16	250	3	1	14	33	0.35	4	-40¦C - + 85¦C
250R080T	0.08	0.16	250	3	1	15	33	0.35	4	-40¦C - + 85¦C
250R120	0.12	0.24	250	3	1	4	16	1	2.5	-40¦C - + 85¦C
250R120-R1	0.12	0.24	250	3	1	6	16	1	2.5	-40¦C - + 85¦C
250R120-R2	0.12	0.24	250	3	1	8	16	1	2.5	-40¦C - + 85¦C
250R120-R3	0.12	0.24	250	3	1	8	16	1	2.5	-40¦C - + 85¦C
250R120-RA	0.12	0.24	250	3	1	7	16	1	2.5	-40¦C - + 85¦C
250R120-RC	0.12	0.24	250	3	1	5.4	14	1	3	-40¦C - + 85¦C
250R120-RF	0.12	0.24	250	3	1	6	16	1	2.5	-40¦C - + 85¦C
250R120T	0.12	0.24	250	3	1	7	16	1	2.5	-40¦C - + 85¦C
250R145	0.145	0.29	250	3	1	3	14	1	2.5	-40¦C - + 85¦C
250R145-RA	0.145	0.29	250	3	1	3	12	1	2.5	-40¦C - + 85¦C
250R145-RB	0.145	0.29	250	3	1	4.5	14	1	2.5	-40¦C - + 85¦C
250R145T	0.145	0.29	250	3	1	5.4	14	1	2.5	-40¦C - + 85¦C
250R180	0.18	0.65	250	10	1.8	0.8	4	1	20	-40¦C - + 85¦C
250R180T	0.18	0.65	250	10	1.8	1.4	4.5	1	21	-40¦C - + 85¦C