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
	B59606A0110A062 PTC RESET FUSE 30V 90MA 1210 EPCOS - TDK Electronics	360	$1.10		Automotive, AEC-Q200	Tape & Reel (TR)	Active	Ceramic	30V	500 mA	90 mA	180 mA	-	-	-	27 Ohms	-20°C ~ 85°C	AEC-Q200	Surface Mount	1210 (3225 Metric)	0.126" L x 0.098" W (3.20mm x 2.50mm)	-	0.071" (1.80mm)	-
	0ZRE0016FF1C PTC RESET FUSE 240V 160MA RADIAL Bel Fuse Inc.	137	$0.48		0ZRE	Box	Active	Polymeric	240V	2 A	160 mA	370 mA	15 s	2.5 Ohms	7.8 Ohms	-	-40°C ~ 85°C	AEC-Q200	Through Hole	Radial, Disc	0.390" L x 0.150" W (9.90mm x 3.80mm)	0.492" (12.50mm)	-	0.201" (5.10mm)
	RUEF135 PTC RESET FUSE 30V 1.35A RADIAL Littelfuse Inc.	1,444	$0.48		PolySwitch®, RUEF	Bag	Active	Polymeric	30V	100 A	1.35 A	2.7 A	7.3 s	40 mOhms	130 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.350" L x 0.118" W (8.90mm x 3.00mm)	0.532" (13.50mm)	-	0.199" (5.05mm)
	RXEF075 PTC RESET FUSE 72V 750MA RADIAL Littelfuse Inc.	1,667	$0.50		PolySwitch®, RXEF	Bag	Active	Polymeric	72V	40 A	750 mA	1.5 A	6.3 s	250 mOhms	600 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.402" Dia x 0.118" T (10.20mm x 3.00mm)	0.598" (15.20mm)	-	0.199" (5.05mm)
	NANOSMDCH030F/24-02 PTC RESET FUSE 24V 300MA 1206 Littelfuse Inc.	383	$1.18		PolySwitch®, nanoSMD	Tape & Reel (TR)	Active	Polymeric	24V	10 A	300 mA	820 mA	100 ms	500 mOhms	1.95 Ohms	-	-40°C ~ 125°C	-	Surface Mount	1206 (3216 Metric)	0.134" L x 0.071" W (3.40mm x 1.80mm)	-	0.049" (1.25mm)	-
	MF-RX185/72-0 PTC RESET FUSE 72V 1.85A RADIAL Bourns Inc.	396	$0.50		Multifuse®, MF-RX/72	Bulk	Active	Polymeric	72V	40 A	1.85 A	3.7 A	12.6 s	80 mOhms	190 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.701" L x 0.122" W (17.80mm x 3.10mm)	0.902" (22.90mm)	-	0.201" (5.10mm)
	TRF600-150-2 PTC RESET FUSE 250V 150MA RADIAL Littelfuse Inc.	595	$1.16		PolySwitch®, TRF600	Tape & Reel (TR)	Active	Polymeric	250V (600V Int)	3 A	150 mA	300 mA	4 s	6 Ohms	17 Ohms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.354" L x 0.181" W (9.00mm x 4.60mm)	0.492" (12.50mm)	-	0.197" (5.00mm)
	RUEF250 PTC RESET FUSE 30V 2.5A RADIAL Littelfuse Inc.	946	$0.52		PolySwitch®, RUEF	Bag	Active	Polymeric	30V	100 A	2.5 A	5 A	10.3 s	20 mOhms	70 mOhms	-	-	-	Through Hole	Radial, Disc	0.449" L x 0.118" W (11.40mm x 3.00mm)	0.720" (18.30mm)	-	0.199" (5.05mm)
	MF-R400 PTC RESET FUSE 30V 4A RADIAL Bourns Inc.	64	$0.52		Multifuse®, MF-R	Bulk	Active	Polymeric	30V	40 A	4 A	8 A	12.7 s	10 mOhms	50 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.567" L x 0.118" W (14.40mm x 3.00mm)	0.976" (24.80mm)	-	0.201" (5.10mm)
	MF-FSML050/8-2 PTC RESET FUSE 8V 500MA 0603 Bourns Inc.	153	$1.26		Multifuse®, MF-FSML	Tape & Reel (TR)	Active	Polymeric	8V	50 A	500 mA	1 A	60 ms	60 mOhms	500 mOhms	-	-40°C ~ 85°C	-	Surface Mount	0603 (1608 Metric), Concave	0.065" L x 0.033" W (1.65mm x 0.85mm)	-	0.028" (0.70mm)	-
	MF-ASML050/6-2 PTC RESET FUSE 6V 500MA 0402 Bourns Inc.	298	$1.43		Multifuse®, MF-ASML/X	Tape & Reel (TR)	Active	Polymeric	6V	50 A	500 mA	1 A	100 ms	500 mOhms	500 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)	-
	MF-ASML010/6-2 PTC RESET FUSE 6V 100MA 0402 Bourns Inc.	283	$1.41		Multifuse®, MF-ASML/X	Tape & Reel (TR)	Active	Polymeric	6V	50 A	100 mA	300 mA	1 s	150 mOhms	3 Ohms	-	-40°C ~ 85°C	AEC-Q200	Surface Mount	0402 (1005 Metric), Concave	0.039" L x 0.020" W (1.00mm x 0.50mm)	-	0.024" (0.60mm)	-
	RUEF300 PTC RESET FUSE 30V 3A RADIAL Littelfuse Inc.	1,554	$0.57		PolySwitch®, RUEF	Bag	Active	Polymeric	30V	100 A	3 A	6 A	10.8 s	20 mOhms	80 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.449" L x 0.118" W (11.40mm x 3.00mm)	0.650" (16.50mm)	-	0.199" (5.05mm)
	B59890C0120A051 PTC RESET FUSE 265V 30MA RADIAL EPCOS - TDK Electronics	103	$1.30			Tape & Reel (TR)	Active	Ceramic	265V	200 mA	30 mA	60 mA	-	-	-	150 Ohms	0°C ~ 60°C	-	Through Hole	Radial, Disc	0.157" Dia x 0.197" T (4.00mm x 5.00mm)	0.295" (7.50mm)	-	0.197" (5.00mm)
	RKEF110 PTC RESET FUSE 60V 1.1A RADIAL Littelfuse Inc.	1,029	$0.58		PolySwitch®, RKEF	Bag	Active	Polymeric	60V	40 A	1.1 A	2.2 A	3 s	170 mOhms	470 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.299" L x 0.161" W (7.60mm x 4.10mm)	0.591" (15.00mm)	-	0.199" (5.05mm)
	MF-GSMF300/36X-2 PTC RESET FUSE 36V 3A SMD Bourns Inc.	216	$1.38		Multifuse®, MF-GSMF	Tape & Reel (TR)	Active	Polymeric	36V	20 A	3 A	5.2 A	20 s	10 mOhms	60 mOhms	-	-40°C ~ 85°C	-	Surface Mount	Nonstandard SMD	0.341" L x 0.250" W (8.65mm x 6.35mm)	-	0.063" (1.60mm)	-
	16R300GU PTC RESET FUSE 16V 3A RADIAL Littelfuse Inc.	522	$0.61		POLY-FUSE®, 16R	Bulk	Active	Polymeric	16V	100 A	3 A	5.1 A	1 s	38 mOhms	97.5 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.280" L x 0.118" W (7.10mm x 3.00mm)	0.433" (11.00mm)	-	0.201" (5.10mm)
	0ZCF0330FF2C PTC RESET FUSE 24V 3.3A 2920 Bel Fuse Inc.	208	$1.40		0ZCF	Tape & Reel (TR)	Active	Polymeric	24V	100 A	3.3 A	5.5 A	20 s	10 mOhms	48 mOhms	-	-40°C ~ 85°C	AEC-Q200	Surface Mount	2920 (7351 Metric), Concave	0.290" L x 0.202" W (7.36mm x 5.12mm)	-	0.045" (1.15mm)	-
	MF-FSML200/6-2 PTC RESET FUSE 6V 2A 0603 Bourns Inc.	504	$1.44		Multifuse®, MF-FSML	Tape & Reel (TR)	Active	Polymeric	6V	50 A	2 A	4 A	5 s	6 mOhms	65 mOhms	-	-40°C ~ 85°C	-	Surface Mount	0603 (1608 Metric), Concave	0.065" L x 0.033" W (1.65mm x 0.85mm)	-	0.055" (1.40mm)	-
	MF-S350 PTC RESET FUSE 30V 3.5A STRAP Bourns Inc.	318	$0.62		Multifuse®, MF-S	Bulk	Active	Polymeric	30V	100 A	3.5 A	6.3 A	3 s	17 mOhms	40 mOhms	-	-40°C ~ 85°C	-	User Defined	Strap	1.185" L x 0.522" W (30.10mm x 13.25mm)	-	0.043" (1.10mm)	-