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
	RXEF017 PTC RESET FUSE 60V 170MA RADIAL Littelfuse Inc.	636	$0.41		PolySwitch®, RXEF	Bag	Active	Polymeric	60V	40 A	170 mA	340 mA	3 s	3.3 Ohms	8 Ohms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.291" Dia x 0.118" T (7.40mm x 3.00mm)	0.500" (12.70mm)	-	0.199" (5.05mm)
	1206L075/16WR PTC RESET FUSE 16V 750MA 1206 Littelfuse Inc.	71	$0.98		POLY-FUSE®, 1206L	Tape & Reel (TR)	Active	Polymeric	16V	100 A	750 mA	1.5 A	200 ms	90 mOhms	290 mOhms	-	-40°C ~ 85°C	-	Surface Mount	1206 (3216 Metric), Concave	0.126" L x 0.065" W (3.20mm x 1.65mm)	-	0.049" (1.25mm)	-
	1210L035/30WR PTC RESET FUSE 30V 350MA 1210 Littelfuse Inc.	967	$0.96		POLY-FUSE®, 1210L	Tape & Reel (TR)	Active	Polymeric	30V	40 A	350 mA	700 mA	200 ms	320 mOhms	1.3 Ohms	-	-40°C ~ 85°C	-	Surface Mount	1210 (3225 Metric), Concave	0.127" L x 0.102" W (3.22mm x 2.58mm)	-	0.049" (1.25mm)	-
	1210L200PR PTC RESET FUSE 6V 2A 1210 Littelfuse Inc.	378	$0.97		POLY-FUSE®, 1210L	Tape & Reel (TR)	Active	Polymeric	6V	100 A	2 A	4 A	1 s	15 mOhms	70 mOhms	-	-40°C ~ 85°C	-	Surface Mount	1210 (3225 Metric), Concave	0.127" L x 0.102" W (3.22mm x 2.58mm)	-	0.063" (1.60mm)	-
	0ZRB0300FF1A PTC RESET FUSE 30V 3A RADIAL Bel Fuse Inc.	1,171	$0.42		0ZRB	Box	Active	Polymeric	30V	40 A	3 A	6 A	10.8 s	20 mOhms	80 mOhms	-	-40°C ~ 85°C	AEC-Q200	Through Hole	Radial, Disc	0.449" L x 0.118" W (11.40mm x 3.00mm)	0.681" (17.30mm)	-	0.201" (5.10mm)
	MF-NSHT035KX-2 PTC RESET FUSE 30V 350MA 1206 Bourns Inc.	18	$1.00		Multifuse®, MF-NSHT	Tape & Reel (TR)	Active	Polymeric	30V	20 A	350 mA	1.75 A	100 ms	400 mOhms	2.6 Ohms	-	-40°C ~ 125°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)	-
	MF-NSHT016KX-2 PTC RESET FUSE 30V 160MA 1206 Bourns Inc.	890	$0.98		Multifuse®, MF-NSHT	Tape & Reel (TR)	Active	Polymeric	30V	20 A	160 mA	800 mA	100 ms	700 mOhms	6 Ohms	-	-40°C ~ 125°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)	-
	MF-NSHT020KX-2 PTC RESET FUSE 30V 200MA 1206 Bourns Inc.	745	$1.00		Multifuse®, MF-NSHT	Tape & Reel (TR)	Active	Polymeric	30V	20 A	200 mA	1 A	100 ms	600 mOhms	5 Ohms	-	-40°C ~ 125°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)	-
	MF-NSHT050KX-2 PTC RESET FUSE 16V 500MA 1206 Bourns Inc.	124	$0.99		Multifuse®, MF-NSHT	Tape & Reel (TR)	Active	Polymeric	16V	20 A	500 mA	2.5 A	100 ms	170 mOhms	1.6 Ohms	-	-40°C ~ 125°C	AEC-Q200	Surface Mount	1206 (3216 Metric), Concave	0.126" L x 0.063" W (3.20mm x 1.60mm)	-	0.047" (1.20mm)	-
	250S130DR PTC RESET FUSE 60V 130MA 2SMD Littelfuse Inc.	655	$0.96		POLY-FUSE®, 250S	Tape & Reel (TR)	Active	Polymeric	60V (250V Int)	3 A	130 mA	260 mA	4 s	4 Ohms	20 Ohms	-	-40°C ~ 85°C	-	Surface Mount	2-SMD	0.370" L x 0.291" W (9.40mm x 7.40mm)	-	0.146" (3.70mm)	-
	1812L200/16DR PTC RESET FUSE 16V 2A 1812 Littelfuse Inc.	966	$0.96		POLY-FUSE®, 1812L	Tape & Reel (TR)	Active	Polymeric	16V	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)	-	0.047" (1.20mm)	-
	RXEF005 PTC RESET FUSE 60V 50MA RADIAL Littelfuse Inc.	574	$0.43		PolySwitch®, RXEF	Bag	Active	Polymeric	60V	40 A	50 mA	100 mA	5 s	7.3 Ohms	20 Ohms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.315" Dia x 0.118" T (8.00mm x 3.00mm)	0.327" (8.30mm)	-	0.199" (5.05mm)
	60R020XU PTC RESET FUSE 60V 200MA RADIAL Littelfuse Inc.	402	$0.44		POLY-FUSE®, 60R	Bulk	Active	Polymeric	60V	40 A	200 mA	400 mA	2.2 s	1.83 Ohms	4.4 Ohms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.291" Dia x 0.122" T (7.40mm x 3.10mm)	0.461" (11.70mm)	-	0.201" (5.10mm)
	0ZRE0012FF1C PTC RESET FUSE 240V 120MA RADIAL Bel Fuse Inc.	301	$0.44		0ZRE	Box	Active	Polymeric	240V	2 A	120 mA	300 mA	15 s	3 Ohms	12 Ohms	-	-40°C ~ 85°C	AEC-Q200	Through Hole	Radial, Disc	0.327" L x 0.150" W (8.30mm x 3.80mm)	0.421" (10.70mm)	-	0.201" (5.10mm)
	0ZRG0090FF1E PTC RESET FUSE 30V 900MA RADIAL Bel Fuse Inc.	2,083	$0.43		0ZRG	Bulk	Active	Polymeric	30V	40 A	900 mA	1.8 A	1.2 s	70 mOhms	180 mOhms	-	-40°C ~ 85°C	AEC-Q200	Through Hole	Radial, Disc	0.291" L x 0.118" W (7.40mm x 3.00mm)	0.480" (12.20mm)	-	0.201" (5.10mm)
	0ZRG0120FF1E PTC RESET FUSE 30V 1.2A RADIAL Bel Fuse Inc.	484	$0.43		0ZRG	Bulk	Active	Polymeric	30V	40 A	1.2 A	2 A	700 ms	40 mOhms	140 mOhms	-	-40°C ~ 85°C	AEC-Q200	Through Hole	Radial, Disc	0.272" Dia x 0.118" T (6.90mm x 3.00mm)	0.461" (11.70mm)	-	0.201" (5.10mm)
	RXEF030 PTC RESET FUSE 72V 300MA RADIAL Littelfuse Inc.	1,800	$0.44		PolySwitch®, RXEF	Bag	Active	Polymeric	72V	40 A	300 mA	600 mA	3 s	880 mOhms	2.1 Ohms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.291" Dia x 0.118" T (7.40mm x 3.00mm)	0.500" (12.70mm)	-	0.200" (5.08mm)
	0ZRG0155FF1E PTC RESET FUSE 30V 1.55A RADIAL Bel Fuse Inc.	282	$0.44		0ZRG	Bulk	Active	Polymeric	30V	40 A	1.55 A	2.7 A	2.2 s	30 mOhms	120 mOhms	-	-40°C ~ 85°C	AEC-Q200	Through Hole	Radial, Disc	0.272" Dia x 0.118" T (6.90mm x 3.00mm)	0.461" (11.70mm)	-	0.201" (5.10mm)
	0ZRG0075FF1E PTC RESET FUSE 30V 750MA RADIAL Bel Fuse Inc.	519	$0.44		0ZRG	Bulk	Active	Polymeric	30V	40 A	750 mA	1.3 A	400 ms	80 mOhms	230 mOhms	-	-40°C ~ 85°C	AEC-Q200	Through Hole	Radial, Disc	0.272" Dia x 0.118" T (6.90mm x 3.00mm)	0.449" (11.40mm)	-	0.201" (5.10mm)
	2920L110/60MR-A PTC RESET FUSE 60V 1.1A 2920 Littelfuse Inc.	217	$0.98		POLY-FUSE®, 2920L	Tape & Reel (TR)	Active	Polymeric	60V	20 A	1.1 A	2.2 A	500 ms	120 mOhms	410 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)	-