Home
Manufacturer
Littelfuse, Inc.
PTC Resettable Fuses

Littelfuse, Inc.- PTC Resettable Fuses

Littelfuse, Inc., founded in 1927 and headquartered in Chicago, Illinois, USA, is a global leader in circuit protection, power control, and sensing technologies. The company serves virtually every market that uses electrical energy, including automotive, industrial equipment, consumer electronics, and commercial vehicles. Its core product portfolio features the industry’s broadest and deepest range of circuit protection devices, such as automotive blade fuses (ATO, Mini, Maxi series), resettable polymeric positive temperature coefficient (PPTC) devices (PolySwitch series), metal oxide varistors (MOVs), transient voltage suppression (TVS) diodes (SPA and SMBJ families), and electrostatic discharge (ESD) protection arrays. Littelfuse also offers a growing lineup of power semiconductors including silicon carbide (SiC) MOSFETs, rectifiers, and gate drivers, alongside electromechanical sensors like reed switches and Hall effect speed sensors for automotive applications. The company has expanded into heavy-duty switches for commercial vehicles, power distribution centers for mining, and generator control and protection equipment for marine applications. With decades of proven technical expertise and sustained R&D investment, Littelfuse holds a top-tier position in the global circuit protection market, recognized for its reliability and innovation. Its products are critical to ensuring safety and performance in demanding environments, from high-voltage industrial systems to miniature consumer gadgets. Littelfuse operates manufacturing, sales, and engineering facilities worldwide, supporting a diverse customer base with localized solutions. The company is publicly traded on the NASDAQ under the symbol LFUS and continues to strengthen its position through strategic acquisitions and portfolio expansion.

PTC Resettable Fuses - 型号列表

2,547 parts in total

Mfr Part #	Quantity Available	Price	Factory Pack Quantity	RoHS	Packaging	Type	Series	Standard Package	Product	Product Category	MOQ	Unit Pack	Voltage Rating	Current Rating (Max)	Width	Package / Case	Size / Dimension	Fuse Size	Fuse Type	Product Type	Operating Temperature	Resistance	Interrupt Output	Approval Agency	Melting I2t	Response Time	DC Cold Resistance	Voltage - Supply (Min)	Mounting Type	Manufacturer	Accessory Type	For Use With/Related Products	Other Names	EU RoHS	Voltage - Input (Min)	Depth	Height	Length - Overall	Material - Blade	Number of Contacts	Must Operate	Mechanical Life
CYHP0001Z Circuit Protection Kits Multi-Pole Assmbly Kit ACS LPSC/LPSM MULTIPOLE ASSEMBLY KIT P Circuit Protection Kits Multi-Pole Assy Kit QTY1=20CONN+10PINS Littelfuse	10	1: ¥667.76	1	No	Bulk	Multi-Pole Assembly Kit	-	-	Holders	Circuit Protection Kits	1	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	Littelfuse	-	-	-	-	-	-	-	-	-	-	-	-
US6J2PAK Circuit Protection Kits ASSEM KIT for LFPSJ 60A 2 Pole ACS LPSJ 60A 2 POLE ASSEMBLY KIT Littelfuse	10	1: ¥54.264	1	No	Bulk	Assembly kit for 2 LFPSJ601.Z	*	1	-	-	1	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	Littelfuse	*	*	-	-	-	-	-	-	-	-	-	-
US3J3PAK Circuit Protection Kits ASSEM KIT for LFPSJ 30A 3 Pole ACS LPSJ 30A 3 POLE ASSEMBLY KIT Littelfuse	10	1: ¥65.892	1	No	Bulk	Assembly kit for 3 LFPSJ301.Z	*	1	-	-	1	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	Littelfuse	*	*	-	-	-	-	-	-	-	-	-	-
US6J3PAK Circuit Protection Kits ASSEM KIT for LFPSJ 60A 3 Pole ACS LPSJ 60A 3 POLE ASSEMBLY KIT Littelfuse	10	1: ¥65.892	1	No	Bulk	Assembly kit for 3 LFPSJ601.Z	*	1	-	-	1	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	Littelfuse	*	*	-	-	-	-	-	-	-	-	-	-
0RBOX001Z Circuit Protection Kits LOW PROFILE MINI MODULE RB LOW PROFILE MINI MODULE RB MODULE LOW PROFILE MINI RB Littelfuse	10	1: ¥331.976	1	RoHS Compliant	Bulk	-	RED BOX	1	-	-	1	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	Littelfuse	Case	Fuse; 891	RBOX001Z	-	-	-	-	-	-	-	-	-
0RED0BOXZ Circuit Protection Kits INSTALLER CASE PROFESSIONAL PROFESSIONAL INSTALLER CASE CASE PROFESSIONAL INSTALLER 30A Littelfuse	10	1: ¥2,969.764	1	RoHS Compliant	Bulk	-	-	1	-	-	1	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	Littelfuse	Case	Fuse; ATO	RED0BOXZ	-	-	-	-	-	-	-	-	-
045501.6MR Surface Mount Fuses 125V 1.6A Fast Acting - UMF FUSE 1.6A 125V FAST SMD UMF T/R Littelfuse	-		1000	No	Reel	Nona UMF Subminiature Surface Mount Fast Acing Fuse	455	1,000	Surface Mount Fuses	Surface Mount Fuses	-	-	125 V	1.6 A	2.69 mm	2.69 mm	6.1 mm L x 2.69 mm W	NANO UMF	Fast Blow	Surface Mount Fuse	- 55 C to + 125 C	0.0532 Ohms	50 Amps	UL	1.06	Fast	0.0532 Ohm	50A	Surface Mount	-	-	-	-	-	-	-	-	-	-	-	-	-
2 0203002.URG Surface Mount Fuses 250V 2A FUSE 250V SB FLAT-PAK W/GULL-WING 2A FUSE 2A 250V SLO SMD FLATPCK T/R Littelfuse	-		500	No	Reel	Flat-Pak SMD/SMT Slow Blow Fuse	203	500	Surface Mount Fuses	Surface Mount Fuses	1	0	250 V	2 A	6.35 mm	4.19 mm	9.45 mm L x 6.35 mm W	FLAT-PAK	Time Delay / Slow Blow	Surface Mount Fuse	- 55 C to + 125 C	34.5 mOhms	50 Amps at 250 Volts	CSA, UL	1.7	Slow	0.0345 Ohm	50A	Surface Mount	-	-	-	-	-	-	-	-	-	-	-	-	-
0455.500MR Surface Mount Fuses 125V .5A Fast Acting - UMF FUSE .500A 125V FAST SMD UMF T/R Littelfuse	-		1000	No	Reel	Nona UMF Subminiature Surface Mount Fast Acing Fuse	455	1,000	Surface Mount Fuses	Surface Mount Fuses	-	-	125 V	500 mA	2.69 mm	2.69 mm	6.1 mm L x 2.69 mm W	NANO UMF	Fast Blow	Surface Mount Fuse	- 55 C to + 125 C	0.305 Ohms	50 Amps	UL	0.143	Fast	0.305 Ohm	50A	Surface Mount	-	-	-	-	-	-	-	-	-	-	-	-	-
2 0202.750HXG Surface Mount Fuses 250V .75A Fuse Subminiature Slow Blow Acting 0.75A 250V SMD Gull Wing 10.16 X 6.35 X 4.19mm Thermoplastic Bulk FUSE 250V FA FLAT-PAK W/G-WING .750A FUSE .750A 250V FAST SMT GULL Littelfuse	-		100	No	Tube	FLAT-PAK SMD/SMT Fast Acting Fuse	202	100	Surface Mount Fuses	Surface Mount Fuses	1	0	250 V	750 mA	6.35 mm	4.19 mm	9.45 mm L x 6.35 mm W	FLAT-PAK	Fast Blow	Surface Mount Fuse	- 55 C to + 125 C	166 mOhms	50 Amps at 250 Volts	CSA, UL	0.098	Fast	0.166 Ohm	50A	Surface Mount	-	-	-	-	Not Compliant	250	6.35	4.19	9.45	Thermoplastic	2	Slow Blow	-
202005G Surface Mount Fuses 5A 250V FAST ACTING Littelfuse	10	1: ¥24.888	500	No	Reel	FLAT-PAK SMD/SMT Fast Acting Fuse	202	-	Surface Mount Fuses	Surface Mount Fuses	-	-	250 V	5 A	6.35 mm	4.19 mm	9.45 mm L x 6.35 mm W	FLAT-PAK	Fast Blow	Surface Mount Fuse	- 55 C to + 125 C	17.4 mOhms	50 Amps at 250 Volts	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
202.250G Surface Mount Fuses .250A 250V FA GULL-WING Littelfuse	-		500	No	Reel	FLAT-PAK SMD/SMT Fast Acting Fuse	202	-	Surface Mount Fuses	Surface Mount Fuses	-	-	250 V	250 mA	6.35 mm	4.19 mm	9.45 mm L x 6.35 mm W	FLAT-PAK	Fast Blow	Surface Mount Fuse	- 55 C to + 125 C	880 mOhms	50 Amps at 250 Volts	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	Obsolete
2 0202.250HXG Surface Mount Fuses 250V .25A FUSE 250V FA FLAT-PAK W/G-WING .250A FUSE .250A 250V FAST SMT GULL Littelfuse	-		100	No	Tube	FLAT-PAK SMD/SMT Fast Acting Fuse	202	100	Surface Mount Fuses	Surface Mount Fuses	1	0	250 V	250 mA	6.35 mm	4.19 mm	9.45 mm L x 6.35 mm W	FLAT-PAK	Fast Blow	Surface Mount Fuse	- 55 C to + 125 C	880 mOhms	50 Amps at 250 Volts	CSA, UL	0.0147	Fast	0.88 Ohm	50A	Surface Mount	-	-	-	-	-	-	-	-	-	-	-	-	-
R203001G Surface Mount Fuses 1A 250V SLO BLO GULLWING Littelfuse	10	1: ¥24.412	500	No	Reel	Flat-Pak SMD/SMT Slow Blow Fuse	203	-	Surface Mount Fuses	Surface Mount Fuses	-	-	250 V	1 A	6.35 mm	4.19 mm	9.45 mm L x 6.35 mm W	FLAT-PAK	Time Delay / Slow Blow	Surface Mount Fuse	- 55 C to + 125 C	75.5 mOhms	50 Amps at 250 Volts	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2 020202.5HXG Surface Mount Fuses 250V 2.5A FUSE 250V FA FLAT-PAK W/GULL-WING 2.5A FUSE 2.5A 250V FAST SMT GULL Littelfuse	-		100	No	Tube	FLAT-PAK SMD/SMT Fast Acting Fuse	202	100	Surface Mount Fuses	Surface Mount Fuses	1	0	250 V	2.5 A	6.35 mm	4.19 mm	9.45 mm L x 6.35 mm W	FLAT-PAK	Fast Blow	Surface Mount Fuse	- 55 C to + 125 C	45.5 mOhms	50 Amps at 250 Volts	CSA, UL	1.76	Fast	0.0455 Ohm	50A	Surface Mount	-	-	-	-	-	-	-	-	-	-	-	-	-
2 0203001.URG Surface Mount Fuses 250V 1A FUSE 250V SB FLAT-PAK W/GULL-WING 1A FUSE 1A 250V SLO SMD FLATPCK T/R Littelfuse	-		500	No	Reel	Flat-Pak SMD/SMT Slow Blow Fuse	203	500	Surface Mount Fuses	Surface Mount Fuses	1	0	250 V	1 A	6.35 mm	4.19 mm	9.45 mm L x 6.35 mm W	FLAT-PAK	Time Delay / Slow Blow	Surface Mount Fuse	- 55 C to + 125 C	75.5 mOhms	50 Amps at 250 Volts	CSA, UL	0.328	Slow	0.0755 Ohm	50A	Surface Mount	-	-	-	-	-	-	-	-	-	-	-	-	-
2 0202003.URG Surface Mount Fuses 250V 3A FUSE 250V FA FLAT-PAK W/GULL-WING 3A FUSE 3A 250V FST SMD FLATPCK T/R Littelfuse	-		500	No	Reel	FLAT-PAK SMD/SMT Fast Acting Fuse	202	500	Surface Mount Fuses	Surface Mount Fuses	1	0	250 V	3 A	6.35 mm	4.19 mm	9.45 mm L x 6.35 mm W	FLAT-PAK	Fast Blow	Surface Mount Fuse	- 55 C to + 125 C	32.7 mOhms	50 Amps at 250 Volts	CSA, UL	1.71	Fast	0.0327 Ohm	50A	Surface Mount	-	-	-	-	-	-	-	-	-	-	-	-	-
0455.400MR Surface Mount Fuses 125V .4A Fast Acting - UMF FUSE .400A 125V FAST SMD UMF T/R Littelfuse	-		1000	No	Reel	Nona UMF Subminiature Surface Mount Fast Acing Fuse	455	1,000	Surface Mount Fuses	Surface Mount Fuses	-	-	125 V	400 mA	2.69 mm	2.69 mm	6.1 mm L x 2.69 mm W	NANO UMF	Fast Blow	Surface Mount Fuse	- 55 C to + 125 C	0.42 Ohms	50 Amps	UL	0.0795	Fast	0.42 Ohm	50A	Surface Mount	-	-	-	-	-	-	-	-	-	-	-	-	-
4 0451012.MR Surface Mount Fuses 65V 12A W/SN Caps FUSE 65V V/FA NANO2 W/SnPb CAPS 12A FUSE 12.0A 65V FAST NANO2 SMF Littelfuse	4652	13: ¥5.44	1000	RoHS Compliant	Reel	Nano Surface Mount Very Fast Acting Fuse	451	1,000	Surface Mount Fuses	Surface Mount Fuses	1	0	125 V	12 A	2.69 mm	2.69 mm	6.1 mm L x 2.69 mm W	NANO	Fast Blow	Surface Mount Fuse	- 55 C to + 125 C	0.0049 Ohms	50 Amps	CSA, UL	47.97	Fast	0.0049 Ohm	50A	Surface Mount	-	-	-	F1155CT	-	-	-	-	-	-	-	-	-
4 0451.062NRL Surface Mount Fuses 125V .062A V/FA NANO2 W/Au FUSE 125V V/FA NANO2 W/Au CAPS RoHS.062 FUSE 125V FAST NANO2 SMD 62MA Littelfuse	-		5000	RoHS Compliant	Reel	Nano Surface Mount Very Fast Acting Fuse	451	5,000	Surface Mount Fuses	Surface Mount Fuses	1	0	125 V	62 mA	2.69 mm	2.69 mm	6.1 mm L x 2.69 mm W	NANO	Fast Blow	Surface Mount Fuse	-55°C ~ 125°C	-	-	CSA, UL	0.00019	Fast	5.5 Ohm	50A	Surface Mount	-	-	-	-	-	-	-	-	-	-	-	-	-

Page 1 / 50

Littelfuse, Inc.- PTC Resettable Fuses

PTC Resettable Fuses - 型号列表

Current Rating (Max)

Resistance

Melting I2t

DC Cold Resistance

Type

Series

Factory Pack Quantity

Standard Package

Packaging

For Use With/Related Products

Other Names

Fuse Size

Product

Product Category

RoHS

Accessory Type

Approval Agency

Response Time

Voltage Rating

Interrupt Output

Width

Package / Case

Size / Dimension

Fuse Type

Operating Temperature