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
	PRG21BC4R7MM1RA PTC RESET FUSE 30V 155MA 0805 Murata Electronics	626	$0.88		POSISTOR®, PRG	Tape & Reel (TR)	Not For New Designs	Ceramic	30V	8 A	155 mA	330 mA	-	-	-	4.7 Ohms	-20°C ~ 85°C	-	Surface Mount	0805 (2012 Metric)	0.079" L x 0.049" W (2.00mm x 1.25mm)	-	0.043" (1.10mm)	-
	LVR016K-2 PTC RESET FUSE 240V 160MA RADIAL Littelfuse Inc.	615	$0.80		PolySwitch®, LVR	Tape & Reel (TR)	Active	Polymeric	240V (265V Int)	2 A	160 mA	370 mA	15 s	2.5 Ohms	7.8 Ohms	-	-20°C ~ 85°C	-	Through Hole	Radial, Disc	0.390" Dia x 0.150" T (9.90mm x 3.80mm)	0.543" (13.80mm)	-	0.200" (5.08mm)
	2016L100/33DR PTC RESET FUSE 33V 1.1A 2016 Littelfuse Inc.	425	$0.76		POLY-FUSE®, 2016L	Tape & Reel (TR)	Active	Polymeric	33V	40 A	1.1 A	2.2 A	500 ms	100 mOhms	400 mOhms	-	-40°C ~ 85°C	-	Surface Mount	2016 (5041 Metric), Concave	0.200" L x 0.160" W (5.08mm x 4.07mm)	-	0.049" (1.25mm)	-
	MF-R010 PTC RESET FUSE 60V 100MA RADIAL Bourns Inc.	2,306	$0.33		Multifuse®, MF-R	Bulk	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-R005-0 PTC RESET FUSE 60V 50MA RADIAL Bourns Inc.	2,794	$0.34		Multifuse®, MF-R	Bulk	Active	Polymeric	60V	40 A	50 mA	100 mA	5 s	7.3 Ohms	22 Ohms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.315" Dia x 0.122" T (8.00mm x 3.10mm)	0.327" (8.30mm)	-	0.201" (5.10mm)
	2920L185DR PTC RESET FUSE 33V 1.85A 2920 Littelfuse Inc.	1,248	$0.77		POLY-FUSE®, 2920L	Tape & Reel (TR)	Active	Polymeric	33V	40 A	1.85 A	3.7 A	2.5 s	50 mOhms	150 mOhms	-	-40°C ~ 85°C	-	Surface Mount	2920 (7351 Metric), Concave	0.289" L x 0.202" W (7.35mm x 5.12mm)	-	0.049" (1.25mm)	-
	2016L150DR PTC RESET FUSE 15V 1.5A 2016 Littelfuse Inc.	214	$0.79		POLY-FUSE®, 2016L	Tape & Reel (TR)	Active	Polymeric	15V	40 A	1.5 A	3 A	1 s	70 mOhms	180 mOhms	-	-40°C ~ 85°C	-	Surface Mount	2016 (5041 Metric), Concave	0.200" L x 0.160" W (5.08mm x 4.07mm)	-	0.061" (1.55mm)	-
	RUEF500-2 PTC RESET FUSE 30V 5A RADIAL Littelfuse Inc.	402	$0.81		PolySwitch®, RUEF	Tape & Reel (TR)	Active	Polymeric	30V	100 A	5 A	10 A	14.5 s	10 mOhms	50 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.551" L x 0.120" W (14.00mm x 3.00mm)	0.949" (24.10mm)	-	0.400" (10.15mm)
	2920L200/24DR PTC RESET FUSE 24V 2A 2920 Littelfuse Inc.	956	$0.83		POLY-FUSE®, 2920L	Tape & Reel (TR)	Active	Polymeric	24V	40 A	2 A	4 A	5 s	50 mOhms	125 mOhms	-	-40°C ~ 85°C	-	Surface Mount	2920 (7351 Metric), Concave	0.289" L x 0.202" W (7.35mm x 5.12mm)	-	0.049" (1.25mm)	-
	2920L300/15DR PTC RESET FUSE 15V 3A 2920 Littelfuse Inc.	287	$0.82		POLY-FUSE®, 2920L	Tape & Reel (TR)	Active	Polymeric	15V	40 A	3 A	5 A	20 s	15 mOhms	48 mOhms	-	-40°C ~ 85°C	-	Surface Mount	2920 (7351 Metric), Concave	0.289" L x 0.202" W (7.35mm x 5.12mm)	-	0.049" (1.25mm)	-
	2920L110/60MR PTC RESET FUSE 60V 1.1A 2920 Littelfuse Inc.	424	$0.81		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	0.289" L x 0.202" W (7.36mm x 5.12mm)	-	0.079" (2.00mm)	-
	ASMDC125F/33-2 PTC RESET FUSE 33V 1.25A 2SMD Littelfuse Inc.	467	$0.89		PolySwitch®, ASMD	Tape & Reel (TR)	Active	Polymeric	33V	40 A	1.25 A	2.5 A	2 s	40 mOhms	250 mOhms	-	-	PS300, PS400	Surface Mount	2-SMD	0.295" L x 0.201" W (7.50mm x 5.10mm)	-	0.028" (0.71mm)	-
	2920L600/12MR PTC RESET FUSE 12V 6A 2920 Littelfuse Inc.	989	$0.84		POLY-FUSE®, 2920L	Tape & Reel (TR)	Active	Polymeric	12V	50 A	6 A	12 A	2 s	4 mOhms	20 mOhms	-	-40°C ~ 85°C	-	Surface Mount	2920 (7351 Metric), Concave	0.290" L x 0.202" W (7.36mm x 5.12mm)	-	0.063" (1.60mm)	-
	2016L075/60MR PTC RESET FUSE 60V 750MA 2016 Littelfuse Inc.	431	$0.85		POLY-FUSE®, 2016L	Tape & Reel (TR)	Active	Polymeric	60V	20 A	750 mA	1.5 A	500 ms	130 mOhms	900 mOhms	-	-40°C ~ 85°C	-	Surface Mount	2016 (5041 Metric), Concave	0.200" L x 0.160" W (5.08mm x 4.07mm)	-	0.079" (2.00mm)	-
	2920L700/12MR PTC RESET FUSE 12V 7A 2920 Littelfuse Inc.	439	$0.84		POLY-FUSE®, 2920L	Tape & Reel (TR)	Active	Polymeric	12V	50 A	7 A	14 A	2 s	3 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)	-	0.063" (1.60mm)	-
	MF-R050 PTC RESET FUSE 60V 500MA RADIAL Bourns Inc.	2,122	$0.38		Multifuse®, MF-R	Bulk	Active	Polymeric	60V	40 A	500 mA	1 A	4 s	410 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)
	PRG21BB220MB1RK PTC RESET FUSE 20V 44MA 0805 Murata Electronics	313	$1.02		POSISTOR®, PRG	Tape & Reel (TR)	Active	Ceramic	20V	1.1 A	44 mA	91 mA	-	-	-	22 Ohms	-20°C ~ 60°C	-	Surface Mount	0805 (2012 Metric)	0.079" L x 0.049" W (2.00mm x 1.25mm)	-	0.057" (1.45mm)	-
	MF-USHT050KX-2 PTC RESET FUSE 30V 500MA 1210 Bourns Inc.	758	$0.93		Multifuse®, MF-USHT	Tape & Reel (TR)	Active	Polymeric	30V	20 A	500 mA	2.5 A	100 ms	300 mOhms	1.6 Ohms	-	-40°C ~ 125°C	AEC-Q200	Surface Mount	1210 (3225 Metric), Concave	0.126" L x 0.100" W (3.20mm x 2.55mm)	-	0.033" (0.85mm)	-
	MF-LSMF260X-2 PTC RESET FUSE 24V 2.6A 2920 Bourns Inc.	610	$0.95		Multifuse®, MF-LSMF	Tape & Reel (TR)	Active	Polymeric	24V	20 A	2.6 A	5.2 A	5 s	20 mOhms	75 mOhms	-	-40°C ~ 85°C	-	Surface Mount	2920 (7351 Metric), Concave	0.289" L x 0.202" W (7.36mm x 5.12mm)	-	0.063" (1.60mm)	-
	MF-LSMF185/33X-2 PTC RESET FUSE 33V 1.85A 2920 Bourns Inc.	849	$0.96		Multifuse®, MF-LSMF	Tape & Reel (TR)	Active	Polymeric	33V	40 A	1.85 A	3.7 A	2.5 s	45 mOhms	150 mOhms	-	-40°C ~ 85°C	-	Surface Mount	2920 (7351 Metric), Concave	0.289" L x 0.202" W (7.36mm x 5.12mm)	-	0.063" (1.60mm)	-