Littelfuse PTC Resettable Fuses

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CategoryPower / Circuit Protection / PTC Resettable Fuses

ManufacturerLittelfuse Inc.

Records 1,697

Page 36/57

Part Number	Manufacturer	Description	In Stock	Series	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
TRF250-145T-2	Littelfuse	TRF250-145T-2	3,924	*	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
AHRF650-2	Littelfuse	PTC RESET FUSE 16V 6.5A RADIAL	2,988	PolySwitch®, AHRF	Polymeric	16V	100A	6.5A	13.7A	7s	9 mOhms	26 mOhms	-	-40°C ~ 125°C	AEC-Q200	Through Hole	Radial, Disc	0.500" L x 0.118" W (12.70mm x 3.00mm)	0.874" (22.20mm)	-	0.200" (5.08mm)
AGRF700	Littelfuse	PTC RESET FUSE 16V 7A RADIAL	3,582	PolySwitch®, AGRF	Polymeric	16V	100A	7A	13.2A	4s	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)
20LR600SU	Littelfuse	PTC RESET FUSE 20V 6A STRAP	4,266	POLY-FUSE®, LR	Polymeric	20V	100A	6A	11.7A	5s	7 mOhms	19 mOhms	-	-40°C ~ 85°C	-	User Defined	Strap	0.984" L x 0.559" W (25.00mm x 14.20mm)	-	0.039" (1.00mm)	-
20LR550SU	Littelfuse	PTC RESET FUSE 20V 5.5A STRAP	7,740	POLY-FUSE®, LR	Polymeric	20V	100A	5.5A	10.5A	5s	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)	-
TRF250-120T-RG-B-0.5	Littelfuse	PTC RESET FUSE 60V 120MA RADIAL	8,208	PolySwitch®, TRF250	Polymeric	60V (250V Int)	3A	120mA	240mA	750ms	8.5 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)	-	0.197" (5.00mm)
16R900GMR	Littelfuse	PTC RESET FUSE 16V 9A RADIAL	5,670	POLY-FUSE®, 16R	Polymeric	16V	100A	9A	15.3A	5.5s	4.7 mOhms	13.5 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.551" L x 0.118" W (14.00mm x 3.00mm)	0.854" (21.70mm)	-	0.201" (5.10mm)
16R800GMR	Littelfuse	PTC RESET FUSE 16V 8A RADIAL	3,870	POLY-FUSE®, 16R	Polymeric	16V	100A	8A	13.6A	5s	5.6 mOhms	17.5 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.500" L x 0.118" W (12.70mm x 3.00mm)	0.823" (20.90mm)	-	0.201" (5.10mm)
TSL250-130F-2	Littelfuse	TSL250-130F-2	4,572	*	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
AHRF450	Littelfuse	PTC RESET FUSE 16V 4.5A RADIAL	8,172	PolySwitch®, AHRF	Polymeric	16V	100A	4.5A	8.7A	4s	17 mOhms	54 mOhms	-	-40°C ~ 125°C	AEC-Q200	Through Hole	Radial, Disc	0.409" Dia x 0.122" T (10.40mm x 3.10mm)	0.563" (14.30mm)	-	0.199" (5.05mm)
RUEF900K-0.144	Littelfuse	PTC RESET FUSE 30V 9A RADIAL	5,202	PolySwitch®, RUEF	Polymeric	30V	100A	9A	18A	20s	5 mOhms	20 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.949" L x 0.118" W (24.10mm x 3.00mm)	1.220" (31.00mm)	-	0.400" (10.15mm)
06SL370GM	Littelfuse	PTC RESET FUSE 6V 3.7A STRAP	131	POLY-FUSE®, SL LoRho	Polymeric	6V	50A	3.7A	9A	5s	5 mOhms	20 mOhms	-	-40°C ~ 85°C	-	User Defined	Strap	0.394" L x 0.130" W (10.00mm x 3.30mm)	-	0.037" (0.95mm)	-
AHRF450S-1	Littelfuse	PTC RESET FUSE 16V 4.5A RADIAL	7,560	PolySwitch®, AHRF	Polymeric	16V	100A	4.5A	8.7A	4s	17 mOhms	54 mOhms	-	-40°C ~ 125°C	AEC-Q200	Through Hole	Radial, Disc	0.409" Dia x 0.122" T (10.40mm x 3.10mm)	0.563" (14.30mm)	-	0.199" (5.05mm)
AHRF550	Littelfuse	PTC RESET FUSE 16V 5.5A RADIAL	3,150	PolySwitch®, AHRF	Polymeric	16V	100A	5.5A	10A	6s	13 mOhms	37 mOhms	-	-40°C ~ 125°C	AEC-Q200	Through Hole	Radial, Disc	0.441" L x 0.118" W (11.20mm x 3.00mm)	0.744" (18.90mm)	-	0.199" (5.05mm)
LR4-380XF	Littelfuse	PTC RESET FUSE 15V 3.8A STRAP	5,562	PolySwitch®, LR4	Polymeric	15V	100A	3.8A	8.3A	5s	13 mOhms	37 mOhms	-	-	-	User Defined	Strap	1.339" L x 0.205" W (34.00mm x 5.20mm)	-	0.039" (1.00mm)	-
RHEF700	Littelfuse	PTC RESET FUSE 16V 7A RADIAL	5,958	PolySwitch®, RHEF	Polymeric	16V	100A	7A	13A	7s	10 mOhms	25 mOhms	-	-40°C ~ 125°C	-	Through Hole	Radial, Disc	0.551" L x 0.118" W (14.00mm x 3.00mm)	0.862" (21.90mm)	-	0.199" (5.05mm)
250R120-R3U	Littelfuse	PTC RESET FUSE 60V 120MA RADIAL	6,084	POLY-FUSE®, 250R	Polymeric	60V (250V Int)	3A	120mA	240mA	2.5s	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)
250R120-R2U	Littelfuse	PTC RESET FUSE 60V 120MA RADIAL	7,722	POLY-FUSE®, 250R	Polymeric	60V (250V Int)	3A	120mA	240mA	2.5s	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)
250R145-RAU	Littelfuse	PTC RESET FUSE 60V 145MA RADIAL	2,322	POLY-FUSE®, 250R	Polymeric	60V (250V Int)	3A	145mA	290mA	2.5s	3 Ohms	12 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)
250R120TU	Littelfuse	PTC RESET FUSE 60V 120MA RADIAL	8,100	POLY-FUSE®, 250R	Polymeric	60V (250V Int)	3A	120mA	240mA	2.5s	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)
250R120-RCU	Littelfuse	PTC RESET FUSE 60V 120MA RADIAL	6,804	POLY-FUSE®, 250R	Polymeric	60V (250V Int)	3A	120mA	240mA	3s	5.4 Ohms	14 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)
250R120-RFU	Littelfuse	PTC RESET FUSE 60V 120MA RADIAL	7,848	POLY-FUSE®, 250R	Polymeric	60V (250V Int)	3A	120mA	240mA	2.5s	6 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)
250R145-RBU	Littelfuse	PTC RESET FUSE 60V 145MA RADIAL	5,040	POLY-FUSE®, 250R	Polymeric	60V (250V Int)	3A	145mA	290mA	2.5s	4.5 Ohms	14 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)
250R145TU	Littelfuse	PTC RESET FUSE 60V 145MA RADIAL	8,082	POLY-FUSE®, 250R	Polymeric	60V (250V Int)	3A	145mA	290mA	2.5s	5.4 Ohms	14 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)
LR4-550RAF	Littelfuse	PTC RESET FUSE 20V 5.5A STRAP	6,624	PolySwitch®, LR4	Polymeric	20V	100A	5.5A	10.5A	5s	9 mOhms	22 mOhms	-	-40°C ~ 85°C	-	User Defined	Strap	-	-	-	-
30ST350U	Littelfuse	PTC RESET FUSE 30V 3.5A STRAP	3,150	POLY-FUSE®, ST	Polymeric	30V	100A	3.5A	6.3A	3s	17 mOhms	31 mOhms	-	-40°C ~ 85°C	-	User Defined	Strap	1.185" L x 0.522" W (30.10mm x 13.25mm)	-	0.043" (1.10mm)	-
30ST420U	Littelfuse	PTC RESET FUSE 30V 4.2A STRAP	2,628	POLY-FUSE®, ST	Polymeric	30V	100A	4.2A	7.6A	6s	12 mOhms	40 mOhms	-	-40°C ~ 85°C	-	User Defined	Strap	1.240" L x 0.522" W (31.50mm x 13.25mm)	-	0.043" (1.10mm)	-
AHRF600	Littelfuse	PTC RESET FUSE 16V 6A RADIAL	4,950	PolySwitch®, AHRF	Polymeric	16V	100A	6A	12A	6.5s	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)	-	0.199" (5.05mm)
RXEF300-AP	Littelfuse	PTC RESET FUSE 72V 3A RADIAL	6,804	PolySwitch®, RXEF	Polymeric	72V	40A	3A	6A	19.8s	40 mOhms	100 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.941" Dia x 0.118" T (23.90mm x 3.00mm)	1.126" (28.60mm)	-	0.400" (10.15mm)
RXEF300K-2	Littelfuse	PTC RESET FUSE 72V 3A RADIAL	5,760	PolySwitch®, RXEF	Polymeric	72V	40A	3A	6A	19.8s	40 mOhms	100 mOhms	-	-40°C ~ 85°C	-	Through Hole	Radial, Disc	0.910" Dia x 0.118" T (23.11mm x 3.00mm)	1.154" (29.30mm)	-	0.400" (10.15mm)

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