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
RUEF400-2 PTC RESET FUSE 30V 4A RADIAL Littelfuse Inc.	2,688	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RUEF	Tape & Reel (TR)	Active	Polymeric	30V	4 A	8 A	100 A	12.7 s	10 mOhms	50 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.551" L x 0.118" W (14.00mm x 3.00mm)	0.760" (19.30mm)	-	0.199" (5.05mm)
DECASMDC050F/60-2 PTC RESET FUSE 60V 550MA 2018 Littelfuse Inc.	30,906	-	RFQ	Datasheet	2018 (5045 Metric), Concave	PolySwitch®, decaSMD	Tape & Reel (TR)	Active	Polymeric	60V	550 mA	1.1 A	10 A	100 ms	200 mOhms	1.1 Ohms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.197" L x 0.177" W (5.01mm x 4.50mm)	-	0.035" (0.89mm)	-
2920L075/60MR PTC RESET FUSE 60V 750MA 2920 Littelfuse Inc.	17,041	-	RFQ	Datasheet	2920 (7351 Metric), Concave	POLY-FUSE®, 2920L	Tape & Reel (TR)	Active	Polymeric	60V	750 mA	1.5 A	10 A	300 ms	300 mOhms	950 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.289" L x 0.202" W (7.35mm x 5.12mm)	-	0.049" (1.25mm)	-
RGEF500-2 PTC RESET FUSE 16V 5A RADIAL Littelfuse Inc.	10,480	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RGEF	Tape & Reel (TR)	Active	Polymeric	16V	5 A	8.5 A	100 A	2 s	15 mOhms	34 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.390" L x 0.098" W (9.90mm x 2.50mm)	0.563" (14.30mm)	-	0.199" (5.05mm)
TSV250-130F-2 PTC RESET FUSE 60V 130MA 2SMD Littelfuse Inc.	9,772	-	RFQ	Datasheet	2-SMD	PolySwitch®, TS250	Tape & Reel (TR)	Active	Polymeric	60V (250V Int)	130 mA	260 mA	3 A	2 s	4 Ohms	12 Ohms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.240" L x 0.272" W (6.10mm x 6.90mm)	-	0.126" (3.20mm)	-
0ZTH0020FF2E PTC RESET FUSE 30V 200MA 1210 Bel Fuse Inc.	2,517	-	RFQ	Datasheet	1210 (3225 Metric), Concave	0ZTH	Tape & Reel (TR)	Active	Polymeric	30V	200 mA	500 mA	10 A	100 ms	800 mOhms	5 Ohms	-	-40°C ~ 125°C	Automotive	AEC-Q200	-	Surface Mount	0.127" L x 0.102" W (3.22mm x 2.58mm)	-	0.047" (1.20mm)	-
RKEF300 PTC RESET FUSE 60V 3A RADIAL Littelfuse Inc.	5,287	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RKEF	Bag	Active	Polymeric	60V	3 A	6 A	40 A	19.8 s	30 mOhms	80 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.650" L x 0.118" W (16.50mm x 3.00mm)	0.835" (21.20mm)	-	0.199" (5.05mm)
2920L200/24DR PTC RESET FUSE 24V 2A 2920 Littelfuse Inc.	4,157	-	RFQ	Datasheet	2920 (7351 Metric), Concave	POLY-FUSE®, 2920L	Tape & Reel (TR)	Active	Polymeric	24V	2 A	4 A	40 A	5 s	50 mOhms	125 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.289" L x 0.202" W (7.35mm x 5.12mm)	-	0.049" (1.25mm)	-
NANOASMDCH050F/24-2 PTC RESET FUSE 24V 500MA 1206 Littelfuse Inc.	18,486	-	RFQ	Datasheet	1206 (3216 Metric), Concave	PolySwitch®, ASMD	Tape & Reel (TR)	Active	Polymeric	24V	500 mA	2.5 A	20 A	100 ms	200 mOhms	1.6 Ohms	-	-40°C ~ 125°C	Automotive	AEC-Q200	-	Surface Mount	0.126" L x 0.062" W (3.20mm x 1.58mm)	-	0.045" (1.14mm)	-
SMDC300F/24-2 PTC RESET FUSE 24V 3A 2920 Littelfuse Inc.	10,904	-	RFQ	Datasheet	2920 (7351 Metric), Concave	SMDC	Tape & Reel (TR)	Active	Polymeric	24V	3 A	6 A	40 A	5 s	-	-	-	-	-	-	-	Surface Mount	0.295" L x 0.201" W (7.50mm x 5.10mm)	-	0.043" (1.10mm)	-
FEMTOSMDC005F-2 PTC RESET FUSE 15V 50MA 0603 Littelfuse Inc.	7,779	-	RFQ	Datasheet	0603 (1608 Metric), Concave	PolySwitch®, femtoSMD	Tape & Reel (TR)	Active	Polymeric	15V	50 mA	150 mA	40 A	100 ms	3.8 Ohms	30 Ohms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.063" L x 0.032" W (1.60mm x 0.80mm)	-	0.033" (0.85mm)	-
AHS300-2 PTC RESET FUSE 16V 3A 2SMD Littelfuse Inc.	2,921	-	RFQ	Datasheet	2-SMD	PolySwitch®, AHS	Tape & Reel (TR)	Active	Polymeric	16V	3 A	6 A	70 A	8 s	24 mOhms	83 mOhms	-	-40°C ~ 125°C	Automotive	AEC-Q200	-	Surface Mount	0.343" L x 0.250" W (8.70mm x 6.36mm)	-	0.118" (3.00mm)	-
2920L110/60MR PTC RESET FUSE 60V 1.1A 2920 Littelfuse Inc.	39,778	-	RFQ	Datasheet	2920 (7351 Metric), Concave	POLY-FUSE®, 2920L	Tape & Reel (TR)	Active	Polymeric	60V	1.1 A	2.2 A	20 A	500 ms	120 mOhms	410 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.289" L x 0.202" W (7.36mm x 5.12mm)	-	0.079" (2.00mm)	-
2920L185DR PTC RESET FUSE 33V 1.85A 2920 Littelfuse Inc.	6,913	-	RFQ	Datasheet	2920 (7351 Metric), Concave	POLY-FUSE®, 2920L	Tape & Reel (TR)	Active	Polymeric	33V	1.85 A	3.7 A	40 A	2.5 s	50 mOhms	150 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.289" L x 0.202" W (7.35mm x 5.12mm)	-	0.049" (1.25mm)	-
MF-NSMF200-2 PTC RESET FUSE 6V 2A 1206 Bourns Inc.	3,049	-	RFQ	Datasheet	1206 (3216 Metric), Concave	Multifuse®, MF-NSMF	Tape & Reel (TR)	Active	Polymeric	6V	2 A	4 A	100 A	1 s	20 mOhms	85 mOhms	-	-40°C ~ 85°C	Automotive	AEC-Q200	-	Surface Mount	0.128" L x 0.063" W (3.25mm x 1.60mm)	-	0.063" (1.60mm)	-
SRP350F PTC RESET FUSE 30V 3.5A STRAP Littelfuse Inc.	32,069	-	RFQ	Datasheet	Strap	PolySwitch®, SRP	Bulk	Active	Polymeric	30V	3.5 A	6.3 A	100 A	3 s	17 mOhms	50 mOhms	-	-40°C ~ 85°C	-	-	-	User Defined	1.185" L x 0.522" W (30.10mm x 13.25mm)	-	0.043" (1.10mm)	-
SRP200F PTC RESET FUSE 30V 2A STRAP Littelfuse Inc.	18,535	-	RFQ	Datasheet	Strap	PolySwitch®, SRP	Bulk	Active	Polymeric	30V	2 A	4.4 A	100 A	4 s	30 mOhms	100 mOhms	-	-40°C ~ 85°C	-	-	-	User Defined	0.880" L x 0.417" W (22.35mm x 10.60mm)	-	0.043" (1.10mm)	-
2920L300/15DR PTC RESET FUSE 15V 3A 2920 Littelfuse Inc.	4,390	-	RFQ	Datasheet	2920 (7351 Metric), Concave	POLY-FUSE®, 2920L	Tape & Reel (TR)	Active	Polymeric	15V	3 A	5 A	40 A	20 s	15 mOhms	48 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.289" L x 0.202" W (7.35mm x 5.12mm)	-	0.049" (1.25mm)	-
RUEF600 PTC RESET FUSE 30V 6A RADIAL Littelfuse Inc.	15,967	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RUEF	Bag	Active	Polymeric	30V	6 A	12 A	100 A	16 s	5 mOhms	40 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.650" L x 0.118" W (16.50mm x 3.00mm)	0.949" (24.10mm)	-	0.400" (10.15mm)
MF-R900 PTC RESET FUSE 30V 9A RADIAL Bourns Inc.	1,928	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Bulk	Active	Polymeric	30V	9 A	18 A	40 A	20 s	5 mOhms	20 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.953" L x 0.118" W (24.20mm x 3.00mm)	1.295" (32.90mm)	-	0.402" (10.20mm)

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