PTC Resettable Fuses

Browse available PTC Resettable Fuses part numbers with manufacturer references, stock information, pricing, datasheets and key specifications. Use the table below to compare options for your project.

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Mfr. Part #	Availability	Price	Quantity	Datasheet	Package/Case	Series	Packaging	Product Status	Type	Voltage - Max	Current - Hold (Ih) (Max)	Current - Trip (It)	Current - Max	Time to Trip	Resistance - Initial (Ri) (Min)	Resistance - Post Trip (R1) (Max)	Resistance - 25°C (Typ)	Operating Temperature	Grade	Qualification	Ratings	Mounting Type	Size / Dimension	Height - Seated (Max)	Thickness (Max)	Lead Spacing
AHS080-2018-2 PTC RESET FUSE 16V 800MA 2SMD Littelfuse Inc.	23,714	-	RFQ	Datasheet	2-SMD	PolySwitch®, AHS	Tape & Reel (TR)	Active	Polymeric	16V	800 mA	2 A	70 A	9 s	130 mOhms	550 mOhms	-	-40°C ~ 125°C	Automotive	AEC-Q200	-	Surface Mount	0.200" L x 0.180" W (5.08mm x 4.58mm)	-	0.060" (1.52mm)	-
0ZRM0090FF1E PTC RESET FUSE 120V 900MA RADIAL Bel Fuse Inc.	9,429	-	RFQ	Datasheet	Radial, Disc	0ZRM	Box	Active	Polymeric	120V	900 mA	1.8 A	5 A	7.2 s	200 mOhms	470 mOhms	-	-40°C ~ 85°C	Automotive	AEC-Q200	-	Through Hole	0.469" Dia x 0.150" T (11.90mm x 3.80mm)	0.626" (15.90mm)	-	0.201" (5.10mm)
MF-NSHT016KX-2 PTC RESET FUSE 30V 160MA 1206 Bourns Inc.	9,387	-	RFQ	Datasheet	1206 (3216 Metric), Concave	Multifuse®, MF-NSHT	Tape & Reel (TR)	Active	Polymeric	30V	160 mA	800 mA	20 A	100 ms	700 mOhms	6 Ohms	-	-40°C ~ 125°C	Automotive	AEC-Q200	-	Surface Mount	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.	8,302	-	RFQ	Datasheet	1206 (3216 Metric), Concave	Multifuse®, MF-NSHT	Tape & Reel (TR)	Active	Polymeric	16V	500 mA	2.5 A	20 A	100 ms	170 mOhms	1.6 Ohms	-	-40°C ~ 125°C	Automotive	AEC-Q200	-	Surface Mount	0.126" L x 0.063" W (3.20mm x 1.60mm)	-	0.047" (1.20mm)	-
RUSBF110-2 PTC RESET FUSE 16V 1.1A RADIAL Littelfuse Inc.	4,920	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RUSBF	Tape & Reel (TR)	Active	Polymeric	16V	1.1 A	2.2 A	40 A	2.3 s	50 mOhms	140 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.291" Dia x 0.118" T (7.40mm x 3.00mm)	0.559" (14.20mm)	-	0.199" (5.05mm)
RKEF185 PTC RESET FUSE 60V 1.85A RADIAL Littelfuse Inc.	23,820	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RKEF	Bag	Active	Polymeric	60V	1.85 A	3.7 A	40 A	12.6 s	60 mOhms	250 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.512" L x 0.150" W (13.00mm x 3.81mm)	0.740" (18.80mm)	-	0.200" (5.08mm)
MF-RX185/72-0 PTC RESET FUSE 72V 1.85A RADIAL Bourns Inc.	18,727	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX/72	Bulk	Active	Polymeric	72V	1.85 A	3.7 A	40 A	12.6 s	80 mOhms	190 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.701" L x 0.122" W (17.80mm x 3.10mm)	0.902" (22.90mm)	-	0.201" (5.10mm)
MICROASMD005F-2 PTC RESET FUSE 30V 50MA 1210 Littelfuse Inc.	11,911	-	RFQ	Datasheet	1210 (3225 Metric), Concave	PolySwitch®, microASMD	Tape & Reel (TR)	Active	Polymeric	30V	50 mA	150 mA	10 A	1.5 s	3.6 Ohms	50 Ohms	-	-40°C ~ 85°C	Automotive	AEC-Q200	-	Surface Mount	0.127" L x 0.102" W (3.22mm x 2.58mm)	-	0.026" (0.67mm)	-
1812L260THDR PTC RESET FUSE 8V 2.6A 1812 Littelfuse Inc.	7,610	-	RFQ	Datasheet	1812 (4532 Metric), Concave	POLY-FUSE®, 1812L	Tape & Reel (TR)	Active	Polymeric	8V	2.6 A	5.2 A	100 A	2.5 s	15 mOhms	47 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.039" (1.00mm)	-
PRG21BC2R2MM1RA PTC RESET FUSE 16V 220MA 0805 Murata Electronics	2,500	-	RFQ	Datasheet	0805 (2012 Metric)	POSISTOR®, PRG	Tape & Reel (TR)	Active	Ceramic	16V	220 mA	500 mA	9 A	-	-	-	2.2 Ohms	-20°C ~ 85°C	-	-	-	Surface Mount	0.079" L x 0.049" W (2.00mm x 1.25mm)	-	0.043" (1.10mm)	-
PRG21BB220MB1RK PTC RESET FUSE 20V 44MA 0805 Murata Electronics	26,767	-	RFQ	Datasheet	0805 (2012 Metric)	POSISTOR®, PRG	Tape & Reel (TR)	Active	Ceramic	20V	44 mA	91 mA	1.1 A	-	-	-	22 Ohms	-20°C ~ 60°C	-	-	-	Surface Mount	0.079" L x 0.049" W (2.00mm x 1.25mm)	-	0.057" (1.45mm)	-
PRG21BC1R0MM1RA PTC RESET FUSE 12V 330MA 0805 Murata Electronics	24,850	-	RFQ	Datasheet	0805 (2012 Metric)	POSISTOR®, PRG	Tape & Reel (TR)	Active	Ceramic	12V	330 mA	740 mA	10 A	-	-	-	1 Ohms	-20°C ~ 85°C	-	-	-	Surface Mount	0.079" L x 0.049" W (2.00mm x 1.25mm)	-	0.043" (1.10mm)	-
CMF-RL35-0 PTC RESET FUSE 220V 75MA RADIAL Bourns Inc.	13,013	-	RFQ	Datasheet	Radial, Disc	CMF-RL	Bulk	Active	Ceramic	230V (600V Int)	80 mA	220 mA	3 A	150 ms	-	-	35 Ohms	-40°C ~ 125°C	-	-	-	Through Hole	0.386" L x 0.197" W (9.80mm x 5.00mm)	0.532" (13.50mm)	-	0.200" (5.08mm)
RXEF160-2 PTC RESET FUSE 72V 1.6A RADIAL Littelfuse Inc.	4,444	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RXEF	Tape & Reel (TR)	Active	Polymeric	72V	1.6 A	3.2 A	40 A	11.4 s	90 mOhms	220 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.642" Dia x 0.118" T (16.30mm x 3.00mm)	0.819" (20.80mm)	-	0.200" (5.08mm)
RXEF090-2 PTC RESET FUSE 72V 900MA RADIAL Littelfuse Inc.	4,265	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RXEF	Tape & Reel (TR)	Active	Polymeric	72V	900 mA	1.8 A	40 A	7.2 s	200 mOhms	470 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.441" Dia x 0.118" T (11.20mm x 3.00mm)	0.622" (15.80mm)	-	0.199" (5.05mm)
SMD150F/33-2920-2 PTC RESET FUSE 33V 1.5A 2SMD Littelfuse Inc.	3,902	-	RFQ	Datasheet	2-SMD	PolySwitch®, SMD	Tape & Reel (TR)	Active	Polymeric	33V	1.5 A	3 A	40 A	5 s	80 mOhms	-	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.289" L x 0.202" W (7.35mm x 5.12mm)	-	0.118" (3.00mm)	-
1812L200THPR PTC RESET FUSE 8V 2A 1812 Littelfuse Inc.	3,354	-	RFQ	Datasheet	1812 (4532 Metric), Concave	POLY-FUSE®, 1812L	Tape & Reel (TR)	Active	Polymeric	8V	2 A	3.5 A	100 A	2 s	20 mOhms	70 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.024" (0.60mm)	-
RKEF160 PTC RESET FUSE 60V 1.6A RADIAL Littelfuse Inc.	2,246	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RKEF	Bag	Active	Polymeric	60V	1.6 A	3.2 A	40 A	9 s	100 mOhms	320 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.480" L x 0.150" W (12.20mm x 3.81mm)	0.720" (18.30mm)	-	0.200" (5.08mm)
1206L005/30WR PTC RESET FUSE 60V 50MA 1206 Littelfuse Inc.	2,124	-	RFQ	Datasheet	1206 (3216 Metric), Concave	POLY-FUSE®, 1206L	Tape & Reel (TR)	Active	Polymeric	30V	50 mA	150 mA	10 A	1.5 s	3.6 Ohms	20 Ohms	-	-40°C ~ 85°C	Automotive	AEC-Q200	-	Surface Mount	0.126" L x 0.065" W (3.20mm x 1.65mm)	-	-	-
RHEF050 PTC RESET FUSE 30V 500MA RADIAL Littelfuse Inc.	2,000	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RHEF	Bag	Active	Polymeric	30V	500 mA	920 mA	40 A	2.5 s	480 mOhms	1.1 Ohms	-	-40°C ~ 125°C	-	-	-	Through Hole	0.291" Dia x 0.118" T (7.40mm x 3.00mm)	0.500" (12.70mm)	-	0.199" (5.05mm)

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