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
	0805L010YR PTC RESET FUSE 15V 100MA 0805 Littelfuse Inc.	1,167	$0.80		POLY-FUSE®, 0805L	Tape & Reel (TR)	Active	Polymeric	15V	100 A	100 mA	300 mA	1.5 s	1 Ohms	6 Ohms	-	-40°C ~ 85°C	-	Surface Mount	0805 (2012 Metric), Concave	0.083" L x 0.053" W (2.10mm x 1.35mm)	-	0.039" (1.00mm)	-
	RXEF250 PTC RESET FUSE 72V 2.5A RADIAL Littelfuse Inc.	1,071	$0.76		PolySwitch®, RXEF	Bag	Active	Polymeric	72V	40 A	2.5 A	5 A	15.6 s	50 mOhms	130 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.819" Dia x 0.118" T (20.80mm x 3.00mm)	1.000" (25.40mm)	-	0.400" (10.15mm)
	TRF250-183 PTC RESET FUSE 100V 183MA RADIAL Littelfuse Inc.	303	$0.79		PolySwitch®, TRF250	Bulk	Active	Polymeric	100V (250V Int)	10 A	183 mA	685 mA	1.8 s	800 mOhms	3.4 Ohms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.295" Dia x 0.161" T (7.50mm x 4.10mm)	0.413" (10.50mm)	-	0.197" (5.00mm)
	1812L200/12DR PTC RESET FUSE 12V 2A 1812 Littelfuse Inc.	71	$1.89		POLY-FUSE®, 1812L	Tape & Reel (TR)	Active	Polymeric	12V	100 A	2 A	3.5 A	2 s	20 mOhms	70 mOhms	-	-40°C ~ 85°C	-	Surface Mount	1812 (4532 Metric), Concave	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.047" (1.20mm)	-
	1812L035/30DR PTC RESET FUSE 30V 350MA 1812 Littelfuse Inc.	173	$1.88		POLY-FUSE®, 1812L	Tape & Reel (TR)	Active	Polymeric	30V	40 A	350 mA	750 mA	150 ms	400 mOhms	1.7 Ohms	-	-40°C ~ 85°C	-	Surface Mount	1812 (4532 Metric), Concave	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.049" (1.25mm)	-
	2920L330/24MR PTC RESET FUSE 24V 3.3A 2920 Littelfuse Inc.	17	$1.84		POLY-FUSE®, 2920L	Tape & Reel (TR)	Active	Polymeric	24V	40 A	3.3 A	5.5 A	5 s	15 mOhms	55 mOhms	-	-40°C ~ 85°C	-	Surface Mount	2920 (7351 Metric), Concave	0.290" L x 0.202" W (7.36mm x 5.12mm)	-	0.079" (2.00mm)	-
	2920L500/16MR PTC RESET FUSE 16V 5A 2920 Littelfuse Inc.	319	$1.83		POLY-FUSE®, 2920L	Tape & Reel (TR)	Active	Polymeric	16V	40 A	5 A	10 A	5 s	5 mOhms	25 mOhms	-	-40°C ~ 85°C	-	Surface Mount	2920 (7351 Metric), Concave	0.289" L x 0.202" W (7.35mm x 5.12mm)	-	0.063" (1.60mm)	-
	SRP350F PTC RESET FUSE 30V 3.5A STRAP Littelfuse Inc.	997	$0.83		PolySwitch®, SRP	Bulk	Active	Polymeric	30V	100 A	3.5 A	6.3 A	3 s	17 mOhms	50 mOhms	-	-40°C ~ 85°C	-	User Defined	Strap	1.185" L x 0.522" W (30.10mm x 13.25mm)	-	0.043" (1.10mm)	-
	0805L050WR PTC RESET FUSE 6V 500MA 0805 Littelfuse Inc.	748	$0.84		POLY-FUSE®, 0805L	Tape & Reel (TR)	Active	Polymeric	6V	100 A	500 mA	1 A	100 ms	150 mOhms	850 mOhms	-	-40°C ~ 85°C	AEC-Q200	Surface Mount	0805 (2012 Metric), Concave	0.083" L x 0.053" W (2.10mm x 1.35mm)	-	0.049" (1.25mm)	-
	0603L004YR PTC RESET FUSE 24V 40MA 0603 Littelfuse Inc.	656	$1.01		POLY-FUSE®, 0603L	Tape & Reel (TR)	Active	Polymeric	24V	20 A	40 mA	120 mA	1 s	4 Ohms	40 Ohms	-	-40°C ~ 85°C	-	Surface Mount	0603 (1608 Metric), Concave	0.063" L x 0.032" W (1.60mm x 0.80mm)	-	0.030" (0.75mm)	-
	0603L010YR PTC RESET FUSE 15V 100MA 0603 Littelfuse Inc.	891	$1.01		POLY-FUSE®, 0603L	Tape & Reel (TR)	Active	Polymeric	15V	40 A	100 mA	300 mA	1 s	900 mOhms	6 Ohms	-	-40°C ~ 85°C	-	Surface Mount	0603 (1608 Metric), Concave	0.063" L x 0.032" W (1.60mm x 0.80mm)	-	0.030" (0.75mm)	-
	0603L035YR PTC RESET FUSE 6V 350MA 0603 Littelfuse Inc.	223	$1.01		POLY-FUSE®, 0603L	Tape & Reel (TR)	Active	Polymeric	6V	40 A	350 mA	750 mA	100 ms	200 mOhms	1 Ohms	-	-40°C ~ 85°C	-	Surface Mount	0603 (1608 Metric), Concave	0.063" L x 0.032" W (1.60mm x 0.80mm)	-	0.061" (1.55mm)	-
	0603L020YR PTC RESET FUSE 9V 200MA 0603 Littelfuse Inc.	135	$0.99		POLY-FUSE®, 0603L	Tape & Reel (TR)	Active	Polymeric	9V	40 A	200 mA	500 mA	600 ms	550 mOhms	3.5 Ohms	-	-40°C ~ 85°C	-	Surface Mount	0603 (1608 Metric), Concave	0.063" L x 0.032" W (1.60mm x 0.80mm)	-	0.030" (0.75mm)	-
	0805L400SLWR PTC RESET FUSE 4.0A 6V 0805 Littelfuse Inc.	257	$2.14		POLY-FUSE®, LoRho	Tape & Reel (TR)	Active	Polymeric	6V	50 A	4 A	9 A	2 s	3 mOhms	18 mOhms	-	-40°C ~ 85°C	-	Surface Mount	0805 (2012 Metric), Concave	0.083" L x 0.053" W (2.10mm x 1.35mm)	-	0.055" (1.40mm)	-
	1206L400SLWR PTC RESET FUSE 6V 4A 1206 Littelfuse Inc.	186	$2.16		POLY-FUSE®, LoRho	Tape & Reel (TR)	Active	Polymeric	6V	50 A	4 A	8 A	2 s	1 mOhms	14 mOhms	-	-40°C ~ 85°C	-	Surface Mount	1206 (3216 Metric), Concave	0.128" L x 0.065" W (3.25mm x 1.65mm)	-	0.055" (1.40mm)	-
	1206L400/12SLWR PTC RESET FUSE 4.0A 12V 1206 Littelfuse Inc.	301	$2.14		POLY-FUSE®, LoRho	Tape & Reel (TR)	Active	Polymeric	12V	50 A	4 A	8 A	2 s	3 mOhms	16 mOhms	-	-40°C ~ 85°C	-	Surface Mount	1206 (3216 Metric), Concave	0.126" L x 0.065" W (3.20mm x 1.65mm)	-	0.055" (1.40mm)	-
	1206L600SLWR PTC RESET FUSE 6.0A 6V 1206 Littelfuse Inc.	374	$2.13		POLY-FUSE®, LoRho	Tape & Reel (TR)	Active	Polymeric	6V	50 A	6 A	12 A	2 s	1 mOhms	10 mOhms	-	-40°C ~ 85°C	-	Surface Mount	1206 (3216 Metric), Concave	0.083" L x 0.053" W (2.10mm x 1.35mm)	-	0.055" (1.40mm)	-
	1206L450SLWR PTC RESET FUSE 6V 4.5A 1206 Littelfuse Inc.	267	$2.18		POLY-FUSE®, LoRho	Tape & Reel (TR)	Active	Polymeric	6V	50 A	4.5 A	9 A	2 s	1 mOhms	14 mOhms	-	-40°C ~ 85°C	-	Surface Mount	1206 (3216 Metric), Concave	0.128" L x 0.065" W (3.25mm x 1.65mm)	-	0.047" (1.20mm)	-
	VTP210GF PTC RESET FUSE 16V 2.1A STRAP Littelfuse Inc.	797	$0.90		PolySwitch®, VTP	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	0.909" L x 0.209" W (23.10mm x 5.30mm)	-	0.032" (0.80mm)	-
	AHEF300 PTC RESET FUSE 32V 3A RADIAL Littelfuse Inc.	566	$0.89		PolySwitch®, AHEF	Bag	Active	Polymeric	32V	100 A	3 A	6 A	5 s	35 mOhms	110 mOhms	-	-40°C ~ 125°C	AEC-Q200	Through Hole	Radial, Disc	0.402" L x 0.150" W (10.20mm x 3.80mm)	0.610" (15.50mm)	-	0.200" (5.08mm)