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
	0ZCG0260AF2B PTC RESET FUSE 13.2V 2.6A 1812 Bel Fuse Inc.	2,021	$0.33		0ZCG	Tape & Reel (TR)	Active	Polymeric	13.2V	100 A	2.6 A	5 A	5 s	15 mOhms	50 mOhms	-	-40°C ~ 85°C	AEC-Q200	Surface Mount	1812 (4532 Metric), Concave	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.061" (1.55mm)	-
	1812L110PR PTC RESET FUSE 8V 1.1A 1812 Littelfuse Inc.	1,041	$0.41		POLY-FUSE®, 1812L	Tape & Reel (TR)	Active	Polymeric	8V	100 A	1.1 A	2.2 A	300 ms	40 mOhms	210 mOhms	-	-40°C ~ 85°C	-	Surface Mount	1812 (4532 Metric), Concave	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.028" (0.71mm)	-
	MF-RX110/72-2 PTC RESET FUSE 72V 1.1A RADIAL Bourns Inc.	270	$0.42		Multifuse®, MF-RX/72	Tape & Reel (TR)	Active	Polymeric	72V	40 A	1.1 A	2.2 A	8.2 s	150 mOhms	380 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.427" L x 0.122" W (10.84mm x 3.10mm)	0.662" (16.84mm)	-	0.201" (5.10mm)
	MF-SM185/33-2 PTC RESET FUSE 33V 1.8A 2SMD Bourns Inc.	517	$0.42		Multifuse®, MF-SM	Tape & Reel (TR)	Active	Polymeric	33V	40 A	1.8 A	3.6 A	5 s	40 mOhms	150 mOhms	-	-40°C ~ 85°C	AEC-Q200	Surface Mount	2-SMD	0.344" L x 0.264" W (8.75mm x 6.71mm)	-	0.118" (3.00mm)	-
	MICROSMD110F-2 PTC RESET FUSE 6V 1.1A 1210 Littelfuse Inc.	211	$0.46		PolySwitch®, microSMD	Tape & Reel (TR)	Active	Polymeric	6V	40 A	1.1 A	2.2 A	200 ms	70 mOhms	210 mOhms	-	-40°C ~ 85°C	-	Surface Mount	1210 (3225 Metric), Concave	0.127" L x 0.102" W (3.22mm x 2.58mm)	-	0.019" (0.48mm)	-
	0ZCF0300AF2C PTC RESET FUSE 15V 3A 2920 Bel Fuse Inc.	2,105	$0.42		0ZCF	Tape & Reel (TR)	Active	Polymeric	15V	100 A	3 A	5.2 A	20 s	10 mOhms	48 mOhms	-	-40°C ~ 85°C	-	Surface Mount	2920 (7351 Metric), Concave	0.290" L x 0.202" W (7.36mm x 5.12mm)	-	0.045" (1.15mm)	-
	RXEF030-2 PTC RESET FUSE 72V 300MA RADIAL Littelfuse Inc.	1,916	$0.48		PolySwitch®, RXEF	Tape & Reel (TR)	Active	Polymeric	72V	40 A	300 mA	600 mA	3 s	880 mOhms	2.1 Ohms	-	-	-	Through Hole	Radial, Disc	0.291" Dia x 0.118" T (7.40mm x 3.00mm)	0.500" (12.70mm)	-	0.200" (5.08mm)
	MF-NSMF035-2 PTC RESET FUSE 6V 350MA 1206 Bourns Inc.	1,069	$0.47		Multifuse®, MF-NSMF	Tape & Reel (TR)	Active	Polymeric	6V	100 A	350 mA	750 mA	100 ms	300 mOhms	1.2 Ohms	-	-40°C ~ 85°C	AEC-Q200	Surface Mount	1206 (3216 Metric), Concave	0.126" L x 0.063" W (3.20mm x 1.60mm)	-	0.033" (0.85mm)	-
	MINISMDC125F-2 PTC RESET FUSE 6V 1.25A 1812 Littelfuse Inc.	995	$0.46		PolySwitch®, miniSMD	Tape & Reel (TR)	Active	Polymeric	6V	100 A	1.25 A	2.5 A	400 ms	50 mOhms	140 mOhms	-	-40°C ~ 85°C	-	Surface Mount	1812 (4532 Metric), Concave	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.019" (0.48mm)	-
	MINISMDC150F-2 PTC RESET FUSE 6V 1.5A 1812 Littelfuse Inc.	554	$0.46		PolySwitch®, miniSMD	Tape & Reel (TR)	Active	Polymeric	6V	100 A	1.5 A	3 A	500 ms	40 mOhms	110 mOhms	-	-40°C ~ 85°C	-	Surface Mount	1812 (4532 Metric), Concave	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.019" (0.48mm)	-
	MF-RX160/72-2 PTC RESET FUSE 72V 1.6A RADIAL Bourns Inc.	1,597	$0.45		Multifuse®, MF-RX/72	Tape & Reel (TR)	Active	Polymeric	72V	40 A	1.6 A	3.2 A	11.4 s	90 mOhms	220 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.642" L x 0.122" W (16.30mm x 3.10mm)	0.839" (21.30mm)	-	0.201" (5.10mm)
	RXEF050-AP PTC RESET FUSE 72V 500MA RADIAL Littelfuse Inc.	1,257	$0.47		PolySwitch®, RXEF	Cut Tape (CT)	Active	Polymeric	72V	40 A	500 mA	1 A	4 s	500 mOhms	1.17 Ohms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.311" Dia x 0.118" T (7.90mm x 3.00mm)	0.539" (13.70mm)	-	0.199" (5.05mm)
	MF-NSMF020X-2 PTC RESET FUSE 30V 200MA 1206 Bourns Inc.	1,722	$0.49		Multifuse®, MF-NSMF	Tape & Reel (TR)	Active	Polymeric	30V	60 A	200 mA	400 mA	600 ms	600 mOhms	3.3 Ohms	-	-40°C ~ 85°C	AEC-Q200	Surface Mount	1206 (3216 Metric), Concave	0.126" L x 0.063" W (3.20mm x 1.60mm)	-	0.033" (0.85mm)	-
	PFMF.010.2 PTC RESET FUSE 60V 100MA 1812 SCHURTER Inc.	2,045	$0.29		PFMF	Tape & Reel (TR)	Active	Polymeric	60V	40 A	100 mA	300 mA	1.5 s	700 mOhms	15 Ohms	-	-40°C ~ 85°C	-	Surface Mount	1812 (4532 Metric), Concave	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.043" (1.10mm)	-
	NANOSMDC025F-2 PTC RESET FUSE 16V 250MA 1206 Littelfuse Inc.	1,374	$0.49		nanoSMD	Tape & Reel (TR)	Active	Polymeric	16V	100 A	250 mA	580 mA	100 ms	-	-	-	-40°C ~ 85°C	-	Surface Mount	1206 (3216 Metric), Concave	0.126" L x 0.063" W (3.20mm x 1.59mm)	-	0.032" (0.80mm)	-
	RUEF090-2 PTC RESET FUSE 30V 900MA RADIAL Littelfuse Inc.	897	$0.49		PolySwitch®, RUEF	Tape & Reel (TR)	Active	Polymeric	30V	100 A	900 mA	1.8 A	5.9 s	70 mOhms	220 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.291" L x 0.118" W (7.40mm x 3.00mm)	0.480" (12.20mm)	-	0.200" (5.08mm)
	RXEF040S-2 PTC RESET FUSE 72V 400MA RADIAL Littelfuse Inc.	897	$0.50		PolySwitch®, RXEF	Tape & Reel (TR)	Active	Polymeric	72V	40 A	400 mA	800 mA	3.8 s	550 mOhms	1.29 Ohms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.299" Dia x 0.118" T (7.60mm x 3.00mm)	0.532" (13.50mm)	-	0.199" (5.05mm)
	RXEF040-2 PTC RESET FUSE 72V 400MA RADIAL Littelfuse Inc.	1,273	$0.51		PolySwitch®, RXEF	Tape & Reel (TR)	Active	Polymeric	72V	40 A	400 mA	800 mA	3.8 s	550 mOhms	1.29 Ohms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.299" Dia x 0.118" T (7.60mm x 3.00mm)	0.532" (13.50mm)	-	0.199" (5.05mm)
	PRG18BC3R3MM1RB PTC RESET FUSE 16V 180MA 0603 Murata Electronics	379	$0.56		POSISTOR®, PRG	Tape & Reel (TR)	Not For New Designs	Ceramic	16V	6 A	180 mA	400 mA	-	-	-	3.3 Ohms	-20°C ~ 85°C	-	Surface Mount	0603 (1608 Metric)	0.063" L x 0.032" W (1.60mm x 0.80mm)	-	0.037" (0.95mm)	-
	PRG18BC6R8MM1RB PTC RESET FUSE 20V 120MA 0603 Murata Electronics	321	$0.55		POSISTOR®, PRG	Tape & Reel (TR)	Not For New Designs	Ceramic	20V	3.5 A	120 mA	260 mA	-	-	-	6.8 Ohms	-20°C ~ 85°C	-	Surface Mount	0603 (1608 Metric)	0.063" L x 0.032" W (1.60mm x 0.80mm)	-	0.037" (0.95mm)	-