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-RX012/250-2 PTC RESET FUSE 60V 120MA RADIAL Bourns Inc.	184	$0.83		Multifuse®, MF-RX/250	Tape & Reel (TR)	Active	Polymeric	60V (250V Int)	3 A	120 mA	-	-	8 Ohms	16 Ohms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.256" L x 0.181" W (6.50mm x 4.60mm)	0.433" (11.00mm)	-	0.201" (5.10mm)
	MF-SM008/250F-2 PTC RESET FUSE 80V 80MA 2SMD Bourns Inc.	141	$0.90		Multifuse®, MF-SM/250	Tape & Reel (TR)	Active	Polymeric	80V	3 A	80 mA	-	-	5 Ohms	20 Ohms	-	-40°C ~ 85°C	-	Surface Mount	2-SMD	0.311" L x 0.209" W (7.90mm x 5.30mm)	0.146" (3.70mm)	0.402" (10.20mm)	-
	PFSM.250.2 PTC RESET FUSE 15V 2.5A 2SMD SCHURTER Inc.	5	$0.41		PFSM	Tape & Reel (TR)	Active	Polymeric	15V	100 A	2.5 A	5 A	25 s	24 mOhms	85 mOhms	-	-40°C ~ 85°C	AEC-Q200	Surface Mount	2-SMD	0.344" L x 0.264" W (8.75mm x 6.71mm)	-	0.118" (3.00mm)	-
	MF-RG500-2 PTC RESET FUSE 16V 5A RADIAL Bourns Inc.	927	$0.96		Multifuse®, MF-RG	Tape & Reel (TR)	Active	Polymeric	16V	100 A	5 A	8.5 A	2 s	15 mOhms	34 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.409" L x 0.118" W (10.40mm x 3.00mm)	0.563" (14.30mm)	-	0.201" (5.10mm)
	PFRA.050 PTC RESET FUSE 60V 500MA RADIAL SCHURTER Inc.	124	$0.41		PFRA	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)
	PTSLR18126V270 PTC RESET FUSE 6V 2.7A 1812 Eaton - Electronics Division	790	$1.12		PTSLR1812	Tape & Reel (TR)	Active	Polymeric	6V	50 A	2.7 A	6.2 A	2 s	3 mOhms	23 mOhms	-	-40°C ~ 85°C	-	Surface Mount	1812 (4532 Metric), Concave	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.028" (0.70mm)	-
	PTSLR18126V350 PTC RESET FUSE 6V 3.5A 1812 Eaton - Electronics Division	412	$1.12		PTSLR1812	Tape & Reel (TR)	Active	Polymeric	6V	50 A	3.5 A	8.1 A	5 s	3 mOhms	20 mOhms	-	-40°C ~ 85°C	-	Surface Mount	1812 (4532 Metric), Concave	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.028" (0.70mm)	-
	PTSLR18126V300 PTC RESET FUSE 6V 3A 1812 Eaton - Electronics Division	714	$1.11		PTSLR1812	Tape & Reel (TR)	Active	Polymeric	6V	50 A	3 A	6.2 A	5 s	3 mOhms	21 mOhms	-	-40°C ~ 85°C	-	Surface Mount	1812 (4532 Metric), Concave	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.028" (0.70mm)	-
	PTSLR18126V370 PTC RESET FUSE 6V 3.7A 1812 Eaton - Electronics Division	99	$1.13		PTSLR1812	Tape & Reel (TR)	Active	Polymeric	6V	50 A	3.7 A	9.1 A	2 s	3 mOhms	18 mOhms	-	-40°C ~ 85°C	-	Surface Mount	1812 (4532 Metric), Concave	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.028" (0.70mm)	-
	PTSLR18126V190 PTC RESET FUSE 6V 1.9A 1812 Eaton - Electronics Division	748	$1.14		PTSLR1812	Tape & Reel (TR)	Active	Polymeric	6V	50 A	1.9 A	4.9 A	4.5 s	3 mOhms	25 mOhms	-	-40°C ~ 85°C	-	Surface Mount	1812 (4532 Metric), Concave	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.028" (0.70mm)	-
	PFRA.160 PTC RESET FUSE 30V 1.6A RADIAL SCHURTER Inc.	563	$0.54		PFRA	Bulk	Active	Polymeric	30V	40 A	1.6 A	3.2 A	8 s	55 mOhms	150 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.402" Dia x 0.118" T (10.20mm x 3.00mm)	0.661" (16.80mm)	-	0.201" (5.10mm)
	MF-RX030/72-0 PTC RESET FUSE 72V 300MA RADIAL Bourns Inc.	232	$0.62		Multifuse®, MF-RX/72	Bulk	Active	Polymeric	72V	40 A	300 mA	600 mA	3 s	760 mOhms	2.1 Ohms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.291" Dia x 0.122" T (7.40mm x 3.10mm)	0.528" (13.40mm)	-	0.201" (5.10mm)
	B59873C0120A051 PTC RESET FUSE 265V 70MA RADIAL EPCOS - TDK Electronics	18	$1.53			Tape & Reel (TR)	Active	Ceramic	265V	1 A	70 mA	140 mA	-	-	-	45 Ohms	0°C ~ 60°C	-	Through Hole	Radial, Disc	0.354" Dia x 0.197" T (9.00mm x 5.00mm)	0.492" (12.50mm)	-	0.197" (5.00mm)
	MF-S175 PTC RESET FUSE 15V 1.75A STRAP Bourns Inc.	232	$0.70		Multifuse®, MF-S	Bulk	Active	Polymeric	15V	100 A	1.75 A	3.8 A	4 s	50 mOhms	120 mOhms	-	-40°C ~ 85°C	-	User Defined	Strap	0.827" L x 0.199" W (21.00mm x 5.05mm)	-	0.039" (1.00mm)	-
	MF-VS210-0 PTC RESET FUSE 16V 2.1A STRAP Bourns Inc.	1,193	$0.74		Multifuse®, MF-VS	Bulk	Active	Polymeric	16V	100 A	2.1 A	4.7 A	5 s	18 mOhms	60 mOhms	-	-40°C ~ 85°C	-	User Defined	Strap	0.866" L x 0.205" W (22.00mm x 5.20mm)	-	0.035" (0.90mm)	-
	VLP175UAF PTC RESET FUSE 16V 1.75A STRAP Littelfuse Inc.	372	$0.76		PolySwitch®, VLP	Bulk	Active	Polymeric	16V	60 A	1.75 A	3.9 A	5 s	23 mOhms	82 mOhms	-	-	-	User Defined	Strap	-	0.028" (0.70mm)	-	-
	0ZRS0070FF1E PTC RESET FUSE 32V 700MA RADIAL Bel Fuse Inc.	513	$0.79		0ZRS	Bulk	Active	Ceramic	32V	100 A	700 mA	1.4 A	3.2 s	230 mOhms	800 mOhms	-	-40°C ~ 125°C	AEC-Q200	Through Hole	Radial, Disc	0.272" L x 0.118" W (6.90mm x 3.00mm)	0.425" (10.80mm)	-	0.201" (5.10mm)
	CMF-SDP10-2 PTC RESET FUSE 230V 180MA 4SMD Bourns Inc.	254	$1.34		CMF-SDP	Tape & Reel (TR)	Active	Ceramic	230V (250V Int)	1 A	180 mA	360 mA	3.8 s	-	-	10 Ohms	-40°C ~ 125°C	-	Surface Mount	4-SMD Cube	0.433" L x 0.354" W (11.00mm x 9.00mm)	-	0.453" (11.50mm)	-
	TSM250-130F-2 PTC RESET FUSE 60V 130MA 4SMD Littelfuse Inc.	439	$1.78		PolySwitch®, TSM	Tape & Reel (TR)	Active	Polymeric	60V	3 A	130 mA	260 mA	2.4 s	4 Ohms	15 Ohms	9 Ohms	-40°C ~ 85°C	-	Surface Mount	4-SMD	0.337" L x 0.323" W (8.55mm x 8.20mm)	-	0.354" (9.00mm)	-
	TSM250-130F-RA-2 PTC RESET FUSE 60V 130MA 4SMD Littelfuse Inc.	437	$1.77		PolySwitch®, TSM	Tape & Reel (TR)	Active	Polymeric	60V	3 A	130 mA	260 mA	2.4 s	4 Ohms	30 Ohms	22 Ohms	-40°C ~ 85°C	-	Surface Mount	4-SMD	0.337" L x 0.323" W (8.55mm x 8.20mm)	-	0.354" (9.00mm)	-