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-NSML400/6-2 PTC RESET FUSE 6V 4A 1206 Bourns Inc.	445	$0.86		Multifuse®, MF-NSML/X	Tape & Reel (TR)	Active	Polymeric	6V	50 A	4 A	8 A	5 s	2 mOhms	18 mOhms	-	-40°C ~ 85°C	-	Surface Mount	1206 (3216 Metric), Concave	0.128" L x 0.063" W (3.25mm x 1.60mm)	-	0.055" (1.40mm)	-
	AGRF600-2 PTC RESET FUSE 16V 6A RADIAL Littelfuse Inc.	50	$0.85		PolySwitch®, AGRF	Tape & Reel (TR)	Active	Polymeric	16V	100 A	6 A	10.7 A	3.5 s	9.5 mOhms	28 mOhms	-	-40°C ~ 85°C	AEC-Q200	Through Hole	Radial, Disc	0.421" L x 0.118" W (10.70mm x 3.00mm)	0.724" (18.40mm)	-	0.199" (5.05mm)
	LVR033K-2 PTC RESET FUSE 240V 330MA RADIAL Littelfuse Inc.	397	$0.78		PolySwitch®, LVR	Tape & Reel (TR)	Active	Polymeric	240V (265V Int)	4.5 A	330 mA	740 mA	21 s	770 mOhms	2.6 Ohms	-	-20°C ~ 85°C	-	Through Hole	Radial, Disc	0.449" L x 0.150" W (11.40mm x 3.80mm)	0.748" (19.00mm)	-	0.200" (5.08mm)
	TRF250-110U-B-0.5-2 PTC RESET FUSE 60V 110MA RADIAL Littelfuse Inc.	743	$0.84		PolySwitch®, TRF250	Tape & Reel (TR)	Active	Polymeric	60V (250V Int)	3 A	110 mA	220 mA	750 ms	5 Ohms	16 Ohms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.209" Dia x 0.150" T (5.30mm x 3.80mm)	0.370" (9.40mm)	-	0.197" (5.00mm)
	MF-RX250/72-2-14 PTC RESET FUSE 72V 2.5A RADIAL Bourns Inc.	322	$0.83		Multifuse®, MF-RX/72	Cut Tape (CT)	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	0.702" L x 0.122" W (17.84mm x 3.10mm)	0.785" (19.94mm)	-	0.201" (5.10mm)
	MF-LSMF185/24X-2 2920 RESETTABLE SMD PPTC 1.85/24 Bourns Inc.	416	$0.90		Multifuse®, MF-LSMF	Tape & Reel (TR)	Active	Polymeric	24V	-	1.85 A	-	-	-	-	-	-40°C ~ 85°C	AEC-Q200	Surface Mount	2920 (7351 Metric), Concave	0.290" L x 0.202" W (7.36mm x 5.12mm)	-	-	-
	MF-R400-2-14 PTC RESET FUSE 30V 4A RADIAL Bourns Inc.	769	$0.85		Multifuse®, MF-R	Tape & Reel (TR)	Active	Polymeric	30V	40 A	4 A	8 A	12.7 s	10 mOhms	50 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.567" L x 0.118" W (14.40mm x 3.00mm)	0.976" (24.80mm)	-	0.201" (5.10mm)
	MF-RX012/250-T-2 PTC RESET FUSE 60V 120MA RADIAL Bourns Inc.	373	$0.89		Multifuse®, MF-RX/250	Tape & Reel (TR)	Active	Polymeric	60V (250V Int)	3 A	120 mA	-	-	7 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)
	RS30-110 PTC RESET FUSE 30V 1.1A RADIAL OptiFuse	713	$0.38		RS30	Bulk	Active	Polymeric	30V	100 A	1.1 A	2.2 A	6.6 s	50 mOhms	170 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.291" L x 0.118" W (7.40mm x 3.00mm)	0.559" (14.20mm)	-	0.201" (5.10mm)
	AGRF700-2 PTC RESET FUSE 16V 7A RADIAL Littelfuse Inc.	332	$0.89		PolySwitch®, AGRF	Tape & Reel (TR)	Active	Polymeric	16V	100 A	7 A	13.2 A	4 s	6.6 mOhms	20 mOhms	-	-40°C ~ 85°C	AEC-Q200	Through Hole	Radial, Disc	0.441" L x 0.118" W (11.20mm x 3.00mm)	0.827" (21.00mm)	-	0.199" (5.05mm)
	PFSM.150.2 PTC RESET FUSE 15V 1.5A 2SMD SCHURTER Inc.	211	$0.41		PFSM	Tape & Reel (TR)	Active	Polymeric	15V	100 A	1.5 A	3 A	5 s	60 mOhms	250 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-USHT016KX-2 PTC RESET FUSE 30V 160MA 1210 Bourns Inc.	1,063	$0.93		Multifuse®, MF-USHT	Tape & Reel (TR)	Active	Polymeric	30V	20 A	160 mA	800 mA	100 ms	700 mOhms	6 Ohms	-	-40°C ~ 125°C	AEC-Q200	Surface Mount	1210 (3225 Metric), Concave	0.127" L x 0.101" W (3.22mm x 2.58mm)	-	0.033" (0.85mm)	-
	RS90-090 PTC RESET FUSE 72V 900MA RADIAL OptiFuse	456	$0.40		RS90	Bulk	Active	Polymeric	72V (90V Int)	40 A	900 mA	1.8 A	7.2 s	200 mOhms	470 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.461" Dia x 0.122" T (11.70mm x 3.10mm)	0.622" (15.80mm)	-	0.201" (5.10mm)
	RHEF650-2 PTC RESET FUSE 16V 6.5A RADIAL Littelfuse Inc.	578	$0.81		PolySwitch®, RHEF	Tape & Reel (TR)	Active	Polymeric	16V	100 A	6.5 A	12 A	5.5 s	11 mOhms	26 mOhms	-	-40°C ~ 125°C	-	Through Hole	Radial, Disc	0.500" L x 0.118" W (12.70mm x 3.00mm)	0.874" (22.20mm)	-	0.199" (5.05mm)
	MF-LSMF330/12X-2 2920 RESETTABLE SMD PPTC 3.3A/12 Bourns Inc.	356	$0.95		Multifuse®, MF-LSMF	Tape & Reel (TR)	Active	Polymeric	12V	-	3.3 A	-	-	-	-	-	-40°C ~ 85°C	AEC-Q200	Surface Mount	2920 (7351 Metric), Concave	0.290" L x 0.202" W (7.36mm x 5.12mm)	-	-	-
	AHRF600-2 PTC RESET FUSE 16V 6A RADIAL Littelfuse Inc.	292	$0.96		PolySwitch®, AHRF	Tape & Reel (TR)	Active	Polymeric	16V	100 A	6 A	12 A	6.5 s	10 mOhms	32 mOhms	-	-40°C ~ 125°C	AEC-Q200	Through Hole	Radial, Disc	0.441" L x 0.118" W (11.20mm x 3.00mm)	0.827" (21.00mm)	-	0.200" (5.08mm)
	R0603LR-035-R PTC RESET FUSE 6V 350MA 0603 OptiFuse	602	$0.42		R0603LR	Tape & Reel (TR)	Active	Polymeric	6V	100 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 0.029" W (1.60mm x 0.73mm)	-	0.030" (0.75mm)	-
	R2920-100-R PTC RESET FUSE 33V 1.1A 2920 OptiFuse	643	$0.42		R2920	Tape & Reel (TR)	Active	Polymeric	33V	100 A	1.1 A	2.2 A	500 ms	90 mOhms	410 mOhms	-	-40°C ~ 85°C	-	Surface Mount	2920 (7351 Metric), Concave	0.290" L x 0.202" W (7.36mm x 5.12mm)	-	0.039" (1.00mm)	-
	R2920-050-R PTC RESET FUSE 60V 500MA 2920 OptiFuse	2,042	$0.41		R2920	Tape & Reel (TR)	Active	Polymeric	60V	100 A	500 mA	1 A	4 s	300 mOhms	1.4 Ohms	-	-40°C ~ 85°C	-	Surface Mount	2920 (7351 Metric), Concave	0.290" L x 0.202" W (7.36mm x 5.12mm)	-	0.045" (1.15mm)	-
	MF-RX012/250-2-2 PTC RESET FUSE 60V 120MA RADIAL Bourns Inc.	919	$0.97		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)