PTC Resettable Fuses

Category Introduction

PTC Resettable Fuses are designed to stop current flow when it exceeds a certain limit (overcurrent protection). The Fuses work by increasing its resistance as its temperature rises due to the current increase. The trip current ranges from 14 mA to 50 A with the Time to trip ranging from 8 ms to 90 s. PTC = Positive Temperature Coefficient.

Product List

5803 Items

PDF	Mfr Part #	Quantity Available	UnitPrice	RFQ	Series	Packaging	Product Status	Type	Voltage - Max	Current - Max	Current - Hold (Ih) (Max)	Current - Trip (It)	Time to Trip	Resistance - Initial (Ri) (Min)	Resistance - Post Trip (R1) (Max)	Resistance - 25°C (Typ)	Operating Temperature	Ratings	Mounting Type	Package / Case	Size / Dimension	Height - Seated (Max)	Thickness (Max)	Lead Spacing
	LR4-260F PTC RESET FUSE 15V 2.6A STRAP Littelfuse Inc.	272	$0.90		PolySwitch®, LR4	Bag	Active	Polymeric	15V	100 A	2.6 A	5.8 A	5 s	20 mOhms	63 mOhms	-	-40°C ~ 85°C	-	User Defined	Strap	0.866" L x 0.205" W (22.00mm x 5.20mm)	-	0.039" (1.00mm)	-
	1812L300/24SLER PTC RESET FUSE 3.0A 24V 1812 Littelfuse Inc.	29	$2.18		POLY-FUSE®, LoRho	Tape & Reel (TR)	Active	Polymeric	24V	50 A	3 A	6 A	2 s	1 mOhms	30 mOhms	-	-40°C ~ 85°C	-	Surface Mount	1812 (4532 Metric), Concave	0.181" L x 0.128" W (4.60mm x 3.24mm)	-	0.032" (0.82mm)	-
	0805L100WR PTC RESET FUSE 6V 1A 0805 Littelfuse Inc.	973	$0.93		POLY-FUSE®, 0805L	Tape & Reel (TR)	Active	Polymeric	6V	40 A	1 A	1.95 A	300 ms	60 mOhms	210 mOhms	-	-40°C ~ 85°C	-	Surface Mount	0805 (2012 Metric), Concave	0.083" L x 0.053" W (2.10mm x 1.35mm)	-	0.071" (1.80mm)	-
	RKEF400 PTC RESET FUSE 60V 4A RADIAL Littelfuse Inc.	1,041	$0.96		PolySwitch®, RKEF	Bag	Active	Polymeric	60V	40 A	4 A	8 A	24 s	14 mOhms	60 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.827" L x 0.118" W (21.00mm x 3.00mm)	0.980" (24.90mm)	-	0.400" (10.15mm)
	0ZRE0100FF1A PTC RESET FUSE 240V 1A RADIAL Bel Fuse Inc.	680	$0.95		0ZRE	Bulk	Active	Polymeric	240V	10 A	1 A	2 A	21 s	220 mOhms	580 mOhms	-	-40°C ~ 85°C	AEC-Q200	Through Hole	Radial, Disc	0.736" Dia x 0.201" T (18.70mm x 5.10mm)	0.961" (24.40mm)	-	0.402" (10.20mm)
	SRP420F PTC RESET FUSE 30V 4.2A STRAP Littelfuse Inc.	507	$1.00		PolySwitch®, SRP	Bulk	Active	Polymeric	30V	100 A	4.2 A	7.6 A	6 s	12 mOhms	40 mOhms	-	-40°C ~ 85°C	-	User Defined	Strap	1.240" L x 0.522" W (31.50mm x 13.25mm)	-	0.043" (1.10mm)	-
	LR4-380F PTC RESET FUSE 15V 3.8A STRAP Littelfuse Inc.	836	$1.03		PolySwitch®, LR4	Bag	Active	Polymeric	15V	100 A	3.8 A	8.3 A	5 s	13 mOhms	37 mOhms	-	-40°C ~ 85°C	-	User Defined	Strap	0.984" L x 0.283" W (25.00mm x 7.20mm)	-	0.039" (1.00mm)	-
	0402L020SLKR PTC RESET FUSE 6V 200MA 0402 Littelfuse Inc.	2	$2.72		POLY-FUSE®, LoRho	Tape & Reel (TR)	Active	Polymeric	6V	40 A	200 mA	500 mA	1 s	100 mOhms	1.25 Ohms	-	-40°C ~ 85°C	-	Surface Mount	0402 (1005 Metric), Concave	0.039" L x 0.020" W (1.00mm x 0.50mm)	-	0.024" (0.60mm)	-
	0402L050SLKR PTC RESET FUSE 6V 500MA 0402 Littelfuse Inc.	49	$2.78		POLY-FUSE®, LoRho	Tape & Reel (TR)	Active	Polymeric	6V	50 A	500 mA	1 A	100 ms	40 mOhms	400 mOhms	-	-40°C ~ 85°C	-	Surface Mount	0402 (1005 Metric), Concave	0.039" L x 0.020" W (1.00mm x 0.50mm)	-	0.024" (0.60mm)	-
	0402L035SLKR PTC RESET FUSE 6V 350MA 0402 Littelfuse Inc.	194	$2.72		POLY-FUSE®, LoRho	Tape & Reel (TR)	Active	Polymeric	6V	50 A	350 mA	700 mA	100 ms	50 mOhms	700 mOhms	-	-40°C ~ 85°C	-	Surface Mount	0402 (1005 Metric), Concave	0.039" L x 0.020" W (1.00mm x 0.50mm)	-	0.024" (0.60mm)	-
	0805L005/30YR PTC RESET FUSE 30V 50MA 0805 Littelfuse Inc.	15	$2.64		POLY-FUSE®, 0805L	Tape & Reel (TR)	Active	Polymeric	30V	40 A	50 mA	150 mA	1.5 s	3.6 Ohms	20 Ohms	-	-40°C ~ 85°C	AEC-Q200	Surface Mount	0805 (2012 Metric), Concave	0.083" L x 0.053" W (2.10mm x 1.35mm)	-	0.049" (1.25mm)	-
	1206L150/12SLYR PTC RESET FUSE 12V 1.5A 1206 Littelfuse Inc.	295	$2.76		POLY-FUSE®, LoRho	Tape & Reel (TR)	Active	Polymeric	12V	50 A	1.5 A	3 A	300 ms	10 mOhms	80 mOhms	-	-40°C ~ 85°C	-	Surface Mount	1206 (3216 Metric), Concave	0.126" L x 0.065" W (3.20mm x 1.65mm)	-	0.033" (0.85mm)	-
	1206L110/12SLYR PTC RESET FUSE 12V 1.1A 1206 Littelfuse Inc.	191	$2.82		POLY-FUSE®, LoRho	Tape & Reel (TR)	Active	Polymeric	12V	50 A	1.1 A	2.2 A	300 ms	15 mOhms	130 mOhms	-	-40°C ~ 85°C	-	Surface Mount	1206 (3216 Metric), Concave	0.126" L x 0.065" W (3.20mm x 1.65mm)	-	0.033" (0.85mm)	-
	0ZRE0200FF1A PTC RESET FUSE 240V 2A RADIAL Bel Fuse Inc.	565	$1.27		0ZRE	Bulk	Active	Polymeric	240V	20 A	2 A	4 A	28 s	90 mOhms	220 mOhms	-	-40°C ~ 85°C	AEC-Q200	Through Hole	Radial, Disc	0.980" L x 0.240" W (24.90mm x 6.10mm)	1.331" (33.80mm)	-	0.402" (10.20mm)
	LVR075S-240 PTC RESET FUSE 240V 750MA RADIAL Littelfuse Inc.	602	$1.26		PolySwitch®, LVR	Bulk	Active	Polymeric	240V (265V Int)	7.5 A	750 mA	1.5 A	18 s	316 mOhms	839 mOhms	-	-20°C ~ 85°C	-	Through Hole	Radial, Disc	0.450" L x 0.189" W (11.43mm x 4.80mm)	0.921" (23.40mm)	-	0.200" (5.08mm)
	2920L500/24SLDR PTC RESET FUSE 5.0A 24V 2920 Littelfuse Inc.	12	$2.99		POLY-FUSE®, LoRho	Tape & Reel (TR)	Active	Polymeric	24V	50 A	5 A	10 A	2 s	1 mOhms	18 mOhms	-	-40°C ~ 85°C	-	Surface Mount	2920 (7351 Metric), Concave	0.290" L x 0.202" W (7.36mm x 5.12mm)	-	0.079" (2.00mm)	-
	LVR100S-240 PTC RESET FUSE 240V 1A RADIAL Littelfuse Inc.	534	$1.44		PolySwitch®, LVR	Bulk	Active	Polymeric	240V (265V Int)	10 A	1 A	2 A	21 s	218 mOhms	580 mOhms	-	-20°C ~ 85°C	-	Through Hole	Radial, Disc	0.736" Dia x 0.201" T (18.70mm x 5.10mm)	0.961" (24.40mm)	-	0.400" (10.15mm)
	LR4-730F PTC RESET FUSE 20V 7.3A STRAP Littelfuse Inc.	252	$1.51		PolySwitch®, LR4	Bag	Active	Polymeric	20V	100 A	7.3 A	14.1 A	5 s	6 mOhms	15 mOhms	-	-40°C ~ 85°C	-	User Defined	Strap	1.106" L x 0.559" W (28.10mm x 14.20mm)	-	0.039" (1.00mm)	-
	LVR125S-240 PTC RESET FUSE 240V 1.25A RADIAL Littelfuse Inc.	205	$1.52		PolySwitch®, LVR	Bulk	Active	Polymeric	240V (265V Int)	12.5 A	1.25 A	2.5 A	23 s	165 mOhms	440 mOhms	-	-20°C ~ 85°C	-	Through Hole	Radial, Disc	0.835" Dia x 0.209" T (21.20mm x 5.30mm)	1.079" (27.40mm)	-	0.400" (10.15mm)
	PTCCL07H111HBE PTC RESET FUSE 265V 110MA RADIAL Vishay Beyschlag/Draloric/BC Components	353	$1.63		PTCCL - 265V	Bulk	Active	Ceramic	265V	650 mA	110 mA	165 mA	-	-	-	48 Ohms	0°C ~ 70°C	-	Through Hole	Radial, Disc	0.276" Dia x 0.217" T (7.00mm x 5.50mm)	0.472" (12.00mm)	-	0.197" (5.00mm)