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
	VLR175LF PTC RESET FUSE 12V 1.75A STRAP Littelfuse Inc.	833	$0.89		PolySwitch®, VLR	Bulk	Active	Polymeric	12V	100 A	1.75 A	4.2 A	5 s	17 mOhms	62 mOhms	-	-40°C ~ 70°C	-	User Defined	Strap	1.201" L x 0.122" W (30.50mm x 3.10mm)	-	0.032" (0.80mm)	-
	VTP175F PTC RESET FUSE 16V 1.75A STRAP Littelfuse Inc.	398	$0.88		PolySwitch®, VTP	Bulk	Active	Polymeric	16V	100 A	1.75 A	3.6 A	5 s	29 mOhms	102 mOhms	-	-40°C ~ 85°C	-	User Defined	Strap	0.874" L x 0.146" W (22.20mm x 3.70mm)	-	0.032" (0.80mm)	-
	0ZRN0400FF1E PTC RESET FUSE 16V 4A RADIAL Bel Fuse Inc.	47	$0.92		0ZRN	Bulk	Active	Polymeric	16V	100 A	4 A	7 A	5 s	24 mOhms	60 mOhms	-	-40°C ~ 125°C	AEC-Q200	Through Hole	Radial, Disc	0.394" L x 0.118" W (10.00mm x 3.00mm)	0.591" (15.00mm)	-	0.201" (5.10mm)
	0ZSC0450FF1E PTC RESET FUSE 20V 4.5A STRAP Bel Fuse Inc.	592	$0.94		0ZSC	Bulk	Active	Polymeric	20V	100 A	4.5 A	8.9 A	5 s	11 mOhms	28 mOhms	-	-40°C ~ 85°C	-	User Defined	Strap	0.984" L x 0.402" W (25.00mm x 10.20mm)	-	0.039" (1.00mm)	-
	MF-LR550 PTC RESET FUSE 10V 5.5A STRAP Bourns Inc.	178	$0.93		Multifuse®, MF-LR	Bulk	Active	Polymeric	10V	100 A	5.5 A	10.5 A	5 s	9 mOhms	22 mOhms	-	-40°C ~ 85°C	-	User Defined	Strap	1.417" L x 0.283" W (36.00mm x 7.20mm)	-	0.039" (1.00mm)	-
	VTP240F PTC RESET FUSE 16V 2.4A STRAP Littelfuse Inc.	155	$1.05		PolySwitch®, VTP	Bulk	Active	Polymeric	16V	100 A	2.4 A	5.9 A	5 s	14 mOhms	52 mOhms	-	-	-	User Defined	Strap	0.984" L x 0.201" W (25.00mm x 5.10mm)	-	0.032" (0.80mm)	-
	LR4-600XF PTC RESET FUSE 20V 6A STRAP Littelfuse Inc.	451	$1.35		PolySwitch®, LR4	Bulk	Active	Polymeric	20V	100 A	6 A	11.7 A	5 s	7 mOhms	19 mOhms	-	-40°C ~ 85°C	-	User Defined	Strap	1.638" L x 0.283" W (41.60mm x 7.20mm)	-	0.039" (1.00mm)	-
	YQS5750PTO PTC RESET FUSE 25V RADIAL DISC Amphenol Thermometrics	173	$1.80		PTO	Bulk	Active	Ceramic	25V	-	-	-	-	-	-	50 Ohms	10°C ~ 55°C	-	Through Hole	Radial, Disc	0.350" Dia x 0.150" T (8.90mm x 3.80mm)	0.413" (10.50mm)	-	0.197" (5.00mm)
	YQS5898PTO PTC RESET FUSE 12V RADIAL DISC Amphenol Thermometrics	179	$1.76		PTO	Bulk	Active	Ceramic	12V	-	-	-	-	-	-	25 Ohms	10°C ~ 55°C	-	Through Hole	Radial, Disc	0.350" Dia x 0.150" T (8.90mm x 3.80mm)	0.350" (8.89mm)	-	0.197" (5.00mm)
	YQS5838PTF PTC RESET FUSE 18V 140MA RADIAL Amphenol Thermometrics	175	$1.81		PTF	Bulk	Active	Ceramic	18V	-	140 mA	290 mA	-	-	-	10 Ohms	10°C ~ 55°C	-	Through Hole	Radial, Disc	0.350" Dia x 0.150" T (8.90mm x 3.80mm)	0.350" (8.90mm)	-	0.197" (5.00mm)
	MF-LR900/20-0 PTC RESET FUSE 20V 9A STRAP Bourns Inc.	37	$2.02		Multifuse®, MF-LR	Bulk	Active	Polymeric	20V	100 A	9 A	16.7 A	5 s	6 mOhms	14 mOhms	-	-40°C ~ 85°C	-	User Defined	Strap	1.831" L x 0.323" W (46.50mm x 8.20mm)	-	0.051" (1.30mm)	-
	YQS6054 PTC RESET FUSE 30V RADIAL DISC Amphenol Thermometrics	225	$2.44		YQ	Bulk	Active	Ceramic	30V	-	-	-	-	-	-	100 Ohms	-	-	Through Hole	Radial, Disc	0.240" Dia x 0.170" T (6.09mm x 4.31mm)	0.470" (12.00mm)	-	0.197" (5.00mm)
	YQS5868PTF PTC RESET FUSE 120V 80MA RADIAL Amphenol Thermometrics	245	$3.04		PTF	Bulk	Active	Ceramic	120V	-	80 mA	170 mA	-	-	-	50 Ohms	10°C ~ 55°C	-	Through Hole	Radial, Disc	0.532" Dia x 0.201" T (13.50mm x 5.10mm)	0.551" (14.00mm)	-	0.197" (5.00mm)
	YQS8121 PTC RESET FUSE 265V 35MA RADIAL Amphenol Thermometrics	74	$3.68		YP	Strip	Active	Ceramic	265V	400 mA	35 mA	80 mA	-	-	-	120 Ohms	0°C ~ 60°C	-	Through Hole	Radial, Disc	0.256" Dia x 0.197" T (6.50mm x 5.00mm)	0.472" (12.00mm)	-	0.236" (6.00mm)
	YQS8070 PTC RESET FUSE 265V 22MA RADIAL Amphenol Thermometrics	125	$3.76		YM	Bulk	Active	Ceramic	265V	-	22 mA	40 mA	-	-	-	600 Ohms	0°C ~ 55°C	-	Through Hole	Radial, Disc	0.157" Dia x 0.197" T (4.00mm x 5.00mm)	0.315" (8.00mm)	-	0.197" (5.00mm)
	YM120C15N182 PTC RESET FUSE 265V 16MA RADIAL Amphenol Thermometrics	137	$3.80		YM	Bulk	Active	Ceramic	265V	100 mA	16 mA	23 mA	-	-	-	1.8 kOhms	0°C ~ 55°C	-	Through Hole	Radial, Disc	0.157" Dia x 0.177" T (4.00mm x 4.50mm)	0.256" (6.50mm)	-	0.200" (5.08mm)
	YQS6000 PTC RESET FUSE 120V RADIAL DISC Amphenol Thermometrics	153	$4.15			Bulk	Active	Ceramic	120V	-	-	-	-	-	-	10 Ohms	-	-	Through Hole	Radial, Disc	0.865" Dia x 0.300" T (21.97mm x 7.62mm)	0.990" (25.15mm)	-	0.328" (8.33mm)
	YQS5878PTF PTC RESET FUSE 240V 45MA RADIAL Amphenol Thermometrics	107	$4.27		PTF	Bulk	Active	Ceramic	240V	-	45 mA	120 mA	-	-	-	250 Ohms	10°C ~ 55°C	-	Through Hole	Radial, Disc	0.650" Dia x 0.272" T (16.50mm x 6.90mm)	0.650" (16.50mm)	-	0.374" (9.50mm)
	YM120D370N100 PTC RESET FUSE 265V 314MA RADIAL Amphenol Thermometrics	7	$6.29		YM	Bulk	Active	Ceramic	265V	2.7 A	314 mA	444 mA	-	-	-	10 Ohms	0°C ~ 55°C	-	Through Hole	Radial, Disc	0.571" Dia x 0.177" T (14.50mm x 4.50mm)	0.669" (17.00mm)	-	0.200" (5.08mm)
	SMD1206B025TF POLYMERIC PTC RESETTABLE FUSE SU YAGEO	5,263	$0.10		SMD1206	Tape & Reel (TR)	Active	Polymeric	16V	100 A	250 mA	500 mA	80 ms	550 mOhms	2.3 Ohms	-	-40°C ~ 85°C	-	Surface Mount	1206 (3216 Metric), Concave	0.126" L x 0.065" W (3.20mm x 1.65mm)	-	0.049" (1.25mm)	-