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
	RUEF110-2 PTC RESET FUSE 30V 1.1A RADIAL Littelfuse Inc.	973	$0.50		PolySwitch®, RUEF	Tape & Reel (TR)	Active	Polymeric	30V	100 A	1.1 A	2.2 A	6.6 s	70 mOhms	170 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.291" Dia x 0.118" T (7.40mm x 3.00mm)	0.559" (14.20mm)	-	0.199" (5.05mm)
	PRG18BC2R2MM1RB PTC RESET FUSE 12V 220MA 0603 Murata Electronics	1,441	$0.56		POSISTOR®, PRG	Tape & Reel (TR)	Not For New Designs	Ceramic	12V	6.5 A	220 mA	500 mA	-	-	-	2.2 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)	-
	PRG18BC4R7MM1RB PTC RESET FUSE 20V 155MA 0603 Murata Electronics	1,523	$0.55		POSISTOR®, PRG	Tape & Reel (TR)	Not For New Designs	Ceramic	20V	5 A	155 mA	330 mA	-	-	-	4.7 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)	-
	60R010XPR PTC RESET FUSE 60V 100MA RADIAL Littelfuse Inc.	1,864	$0.49		POLY-FUSE®, 60R	Cut Tape (CT)	Active	Polymeric	60V	40 A	100 mA	200 mA	4 s	2.5 Ohms	7.5 Ohms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.291" Dia x 0.122" T (7.40mm x 3.10mm)	0.500" (12.70mm)	-	0.201" (5.10mm)
	MF-USMF035-2 PTC RESET FUSE 6V 350MA 1210 Bourns Inc.	59	$0.50		Multifuse®, MF-USMF	Tape & Reel (TR)	Active	Polymeric	6V	40 A	350 mA	750 mA	200 ms	200 mOhms	1.3 Ohms	-	-40°C ~ 85°C	AEC-Q200	Surface Mount	1210 (3225 Metric), Concave	0.127" L x 0.102" W (3.22mm x 2.58mm)	-	0.033" (0.85mm)	-
	1812L075PR PTC RESET FUSE 13.2V 750MA 1812 Littelfuse Inc.	337	$0.50		POLY-FUSE®, 1812L	Tape & Reel (TR)	Active	Polymeric	13.2V	100 A	750 mA	1.5 A	200 ms	100 mOhms	450 mOhms	-	-40°C ~ 85°C	-	Surface Mount	1812 (4532 Metric), Concave	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.030" (0.75mm)	-
	1812L150ZR PTC RESET FUSE 8V 1.25A 1812 Littelfuse Inc.	1,939	$0.50		POLY-FUSE®, 1812L	Tape & Reel (TR)	Active	Polymeric	8V	100 A	1.25 A	3 A	300 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)	-	0.049" (1.25mm)	-
	MINIASMDC030F-2 PTC RESET FUSE 30V 300MA 1812 Littelfuse Inc.	456	$0.51		PolySwitch®, miniASMD	Tape & Reel (TR)	Active	Polymeric	30V	40 A	300 mA	600 mA	100 ms	200 mOhms	1.75 Ohms	-	-40°C ~ 85°C	AEC-Q200	Surface Mount	1812 (4532 Metric), Concave	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.035" (0.89mm)	-
	PTSLR12066V300 PTC RESET FUSE 6V 3A 1206 Eaton - Electronics Division	1,145	$0.51		PTSLR1206	Tape & Reel (TR)	Active	Polymeric	6V	50 A	3 A	6 A	4 s	3 mOhms	26 mOhms	-	-40°C ~ 85°C	-	Surface Mount	1206 (3216 Metric), Concave	0.128" L x 0.065" W (3.25mm x 1.65mm)	-	0.047" (1.20mm)	-
	MF-PSMF035X-2 PTC RESET FUSE 6V 350MA 0805 Bourns Inc.	329	$0.52		Multifuse®, MF-PSMF	Tape & Reel (TR)	Active	Polymeric	6V	40 A	350 mA	750 mA	100 ms	250 mOhms	1.2 Ohms	-	-40°C ~ 85°C	-	Surface Mount	0805 (2012 Metric), Concave	0.085" L x 0.053" W (2.15mm x 1.35mm)	-	0.033" (0.85mm)	-
	1210L150THWR PTC RESET FUSE 6V 1.5A 1210 Littelfuse Inc.	1,761	$0.53		POLY-FUSE®, 1210L	Tape & Reel (TR)	Active	Polymeric	6V	100 A	1.5 A	3 A	300 ms	40 mOhms	110 mOhms	-	-40°C ~ 85°C	-	Surface Mount	1210 (3225 Metric), Concave	0.127" L x 0.102" W (3.22mm x 2.58mm)	-	0.042" (1.07mm)	-
	30R110UPR PTC RESET FUSE 30V 1.1A RADIAL Littelfuse Inc.	925	$0.52		POLY-FUSE®, 30R	Cut Tape (CT)	Active	Polymeric	30V	40 A	1.1 A	2.2 A	6.6 s	50 mOhms	170 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.291" L x 0.118" W (7.40mm x 3.00mm)	0.559" (14.20mm)	-	0.201" (5.10mm)
	60R050XPR PTC RESET FUSE 60V 500MA RADIAL Littelfuse Inc.	1,404	$0.52		POLY-FUSE®, 60R	Cut Tape (CT)	Active	Polymeric	60V	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 0.122" T (7.90mm x 3.10mm)	0.539" (13.70mm)	-	0.201" (5.10mm)
	RKEF050-AP PTC RESET FUSE 60V 500MA RADIAL Littelfuse Inc.	1,341	$0.53		PolySwitch®, RKEF	Cut Tape (CT)	Active	Polymeric	60V	40 A	500 mA	1 A	800 ms	320 mOhms	900 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.280" L x 0.140" W (7.10mm x 3.56mm)	0.450" (11.43mm)	-	0.199" (5.05mm)
	RUEF160-AP PTC RESET FUSE 30V 1.6A RADIAL Littelfuse Inc.	90	$0.53		PolySwitch®, RUEF	Cut Tape (CT)	Active	Polymeric	30V	100 A	1.6 A	3.2 A	8 s	30 mOhms	110 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.350" L x 0.118" W (8.90mm x 3.00mm)	0.598" (15.20mm)	-	0.199" (5.05mm)
	MINISMDC300F-2 PTC RESET FUSE 6V 3A 1812 Littelfuse Inc.	741	$0.53		PolySwitch®, miniSMD	Tape & Reel (TR)	Active	Polymeric	6V	100 A	3 A	6 A	5 s	11 mOhms	36 mOhms	-	-40°C ~ 85°C	-	Surface Mount	1812 (4532 Metric), Concave	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.030" (0.76mm)	-
	1812L125/16DR PTC RESET FUSE 16V 1.25A 1812 Littelfuse Inc.	296	$0.52		POLY-FUSE®, 1812L	Tape & Reel (TR)	Active	Polymeric	16V	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)	-	0.049" (1.25mm)	-
	RUEF250-2 PTC RESET FUSE 30V 2.5A RADIAL Littelfuse Inc.	574	$0.54		PolySwitch®, RUEF	Tape & Reel (TR)	Active	Polymeric	30V	100 A	2.5 A	5 A	10.3 s	20 mOhms	70 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.449" L x 0.118" W (11.40mm x 3.00mm)	0.720" (18.30mm)	-	0.199" (5.05mm)
	RXEF090-2 PTC RESET FUSE 72V 900MA RADIAL Littelfuse Inc.	1,258	$0.56		PolySwitch®, RXEF	Tape & Reel (TR)	Active	Polymeric	72V	40 A	900 mA	1.8 A	7.2 s	200 mOhms	470 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.441" Dia x 0.118" T (11.20mm x 3.00mm)	0.622" (15.80mm)	-	0.199" (5.05mm)
	1812L200THPR PTC RESET FUSE 8V 2A 1812 Littelfuse Inc.	1,292	$0.55		POLY-FUSE®, 1812L	Tape & Reel (TR)	Active	Polymeric	8V	100 A	2 A	3.5 A	2 s	20 mOhms	70 mOhms	-	-40°C ~ 85°C	-	Surface Mount	1812 (4532 Metric), Concave	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.024" (0.60mm)	-