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
	MF-RX050/72-0 PTC RESET FUSE 72V 500MA RADIAL Bourns Inc.	1,382	$0.68		Multifuse®, MF-RX/72	Bulk	Active	Polymeric	72V	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)
	MF-RX135/72-0 PTC RESET FUSE 72V 1.35A RADIAL Bourns Inc.	1,396	$0.67		Multifuse®, MF-RX/72	Bulk	Active	Polymeric	72V	40 A	1.35 A	2.7 A	9.6 s	120 mOhms	300 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.483" L x 0.122" W (12.26mm x 3.10mm)	0.718" (18.26mm)	-	0.201" (5.10mm)
	RUEF400 PTC RESET FUSE 30V 4A RADIAL Littelfuse Inc.	848	$0.68		PolySwitch®, RUEF	Bag	Active	Polymeric	30V	100 A	4 A	8 A	12.7 s	10 mOhms	50 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.551" L x 0.118" W (14.00mm x 3.00mm)	0.760" (19.30mm)	-	0.199" (5.05mm)
	0603L003/36YR PTC RESET FUSE 36V 30MA 0603 Littelfuse Inc.	235	$1.66		POLY-FUSE®, 0603L	Tape & Reel (TR)	Active	Polymeric	36V	40 A	30 mA	90 mA	1 s	6 Ohms	50 Ohms	-	-40°C ~ 85°C	-	Surface Mount	0603 (1608 Metric), Concave	0.063" L x 0.031" W (1.60mm x 0.80mm)	-	0.039" (1.00mm)	-
	0603L002/60YR PTC RESET FUSE 60V 20MA 0603 Littelfuse Inc.	189	$1.68		POLY-FUSE®, 0603L	Tape & Reel (TR)	Active	Polymeric	60V	40 A	20 mA	60 mA	1 s	12 Ohms	70 Ohms	-	-40°C ~ 85°C	-	Surface Mount	0603 (1608 Metric), Concave	0.063" L x 0.031" W (1.60mm x 0.80mm)	-	0.039" (1.00mm)	-
	0ZRE0040FF1A PTC RESET FUSE 240V 400MA RADIAL Bel Fuse Inc.	679	$0.70		0ZRE	Box	Active	Polymeric	240V	7 A	400 mA	900 mA	24 s	600 mOhms	1.9 Ohms	-	-40°C ~ 85°C	AEC-Q200	Through Hole	Radial, Disc	0.453" L x 0.150" W (11.50mm x 3.80mm)	0.768" (19.50mm)	-	0.201" (5.10mm)
	LVR008NK PTC RESET FUSE 240V 80MA RADIAL Littelfuse Inc.	400	$0.71		PolySwitch®, LVR	Bag	Active	Polymeric	240V (265V Int)	1.2 A	80 mA	190 mA	10 s	7.4 Ohms	26 Ohms	-	-20°C ~ 85°C	-	Through Hole	Radial, Disc	0.283" Dia x 0.181" T (7.20mm x 4.60mm)	0.488" (12.40mm)	-	0.200" (5.08mm)
	0ZRM0090FF1E PTC RESET FUSE 120V 900MA RADIAL Bel Fuse Inc.	161	$0.72		0ZRM	Box	Active	Polymeric	120V	5 A	900 mA	1.8 A	7.2 s	200 mOhms	470 mOhms	-	-40°C ~ 85°C	AEC-Q200	Through Hole	Radial, Disc	0.469" Dia x 0.150" T (11.90mm x 3.80mm)	0.626" (15.90mm)	-	0.201" (5.10mm)
	CMF-RL10-10-0 PTC RESET FUSE 220V 150MA RADIAL Bourns Inc.	899	$0.74		CMF-RL	Bulk	Active	Ceramic	220V (600V Int)	3 A	150 mA	300 mA	450 ms	-	-	10 Ohms	-40°C ~ 125°C	-	Through Hole	Radial, Disc	0.374" L x 0.177" W (9.50mm x 4.50mm)	0.532" (13.50mm)	-	0.197" (5.00mm)
	0ZRN0100FF1E PTC RESET FUSE 30V 1A RADIAL Bel Fuse Inc.	746	$0.73		0ZRN	Bulk	Active	Polymeric	30V	40 A	1 A	1.8 A	5.2 s	180 mOhms	430 mOhms	-	-40°C ~ 125°C	AEC-Q200	Through Hole	Radial, Disc	0.382" Dia x 0.118" T (9.70mm x 3.00mm)	0.535" (13.60mm)	-	0.201" (5.10mm)
	TRF250-080U PTC RESET FUSE 60V 80MA RADIAL Littelfuse Inc.	845	$0.74		PolySwitch®, TRF250	Bag	Active	Polymeric	60V (250V Int)	3 A	80 mA	160 mA	4 s	14 Ohms	33 Ohms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.189" Dia x 0.150" T (4.80mm x 3.80mm)	0.366" (9.30mm)	-	0.197" (5.00mm)
	0ZRN0200FF1E PTC RESET FUSE 16V 2A RADIAL Bel Fuse Inc.	1,321	$0.75		0ZRN	Bulk	Active	Polymeric	16V	100 A	2 A	3.8 A	3 s	45 mOhms	110 mOhms	-	-40°C ~ 125°C	AEC-Q200	Through Hole	Radial, Disc	0.370" Dia x 0.118" T (9.40mm x 3.00mm)	0.567" (14.40mm)	-	0.201" (5.10mm)
	0ZRN0050FF1E PTC RESET FUSE 30V 500MA RADIAL Bel Fuse Inc.	150	$0.74		0ZRN	Bulk	Active	Polymeric	30V	40 A	500 mA	900 mA	2.5 s	480 mOhms	1.1 Ohms	-	-40°C ~ 125°C	AEC-Q200	Through Hole	Radial, Disc	0.291" Dia x 0.118" T (7.40mm x 3.00mm)	0.500" (12.70mm)	-	0.201" (5.10mm)
	B59201P1080A062 PTC RESET FUSE 30V 165MA 3225 EPCOS - TDK Electronics	124	$1.65		Automotive, AEC-Q200, B59201	Tape & Reel (TR)	Active	Ceramic	30V	1 A	165 mA	340 mA	-	-	-	4.6 Ohms	-40°C ~ 60°C	AEC-Q200	Surface Mount	3225 (8063 Metric)	0.315" L x 0.248" W (8.00mm x 6.30mm)	-	0.150" (3.80mm)	-
	LVR012K PTC RESET FUSE 240V 120MA RADIAL Littelfuse Inc.	1,152	$0.76		PolySwitch®, LVR	Bag	Active	Polymeric	240V (265V Int)	1.2 A	120 mA	300 mA	15 s	3 Ohms	12 Ohms	-	-20°C ~ 85°C	-	Through Hole	Radial, Disc	0.327" Dia x 0.150" T (8.30mm x 3.80mm)	0.508" (12.90mm)	-	0.200" (5.08mm)
	LVR016S PTC RESET FUSE 240V 160MA RADIAL Littelfuse Inc.	1,030	$0.76		PolySwitch®, LVR	Bulk	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)	0.492" (12.50mm)	-	0.200" (5.08mm)
	0805L200SLTHYR PTC RESET FUSE 6V 2A 0805 Littelfuse Inc.	535	$1.81		POLY-FUSE®, LoRho	Tape & Reel (TR)	Active	Polymeric	6V	50 A	2 A	4 A	1 s	5 mOhms	45 mOhms	-	-40°C ~ 85°C	-	Surface Mount	0805 (2012 Metric), Concave	0.083" L x 0.053" W (2.10mm x 1.35mm)	-	0.030" (0.75mm)	-
	1206L175SLYR PTC RESET FUSE 6V 1.75A 1206 Littelfuse Inc.	392	$1.80		POLY-FUSE®, LoRho	Tape & Reel (TR)	Active	Polymeric	6V	50 A	1.75 A	3.5 A	400 ms	5 mOhms	30 mOhms	-	-40°C ~ 85°C	-	Surface Mount	1206 (3216 Metric), Concave	0.128" L x 0.065" W (3.25mm x 1.65mm)	-	0.071" (1.80mm)	-
	1206L200SLYR PTC RESET FUSE 6V 2A 1206 Littelfuse Inc.	450	$1.81		POLY-FUSE®, LoRho	Tape & Reel (TR)	Active	Polymeric	6V	50 A	2 A	4 A	500 ms	5 mOhms	25 mOhms	-	-40°C ~ 85°C	-	Surface Mount	1206 (3216 Metric), Concave	0.128" L x 0.065" W (3.25mm x 1.65mm)	-	0.024" (0.60mm)	-
	1206L260SLTHYR PTC RESET FUSE 6V 2.6A 1206 Littelfuse Inc.	154	$1.81		POLY-FUSE®, LoRho	Tape & Reel (TR)	Active	Polymeric	6V	50 A	2.6 A	5 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)	-	0.028" (0.70mm)	-