PTC Resettable Fuses

Browse available PTC Resettable Fuses part numbers with manufacturer references, stock information, pricing, datasheets and key specifications. Use the table below to compare options for your project.

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Mfr. Part #	Availability	Price	Quantity	Datasheet	Package/Case	Series	Packaging	Product Status	Type	Voltage - Max	Current - Hold (Ih) (Max)	Current - Trip (It)	Current - Max	Time to Trip	Resistance - Initial (Ri) (Min)	Resistance - Post Trip (R1) (Max)	Resistance - 25°C (Typ)	Operating Temperature	Grade	Qualification	Ratings	Mounting Type	Size / Dimension	Height - Seated (Max)	Thickness (Max)	Lead Spacing
MF-NSMF050/24X-2 FUSE RESET PPTC 1206 0.50A/24V Bourns Inc.	5,757	-	RFQ	Datasheet	1206 (3216 Metric), Concave	Multifuse® freeXpansionTM, MF-NSMF	Tape & Reel (TR)	Active	Polymeric	24V	500 mA	1 A	100 A	100 ms	150 mOhms	750 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.126" L x 0.063" W (3.20mm x 1.60mm)	-	0.033" (0.85mm)	-
MF-NSMF125/8X-2 FUSE RESET PPTC 1206 1.25A/8V Bourns Inc.	4,957	-	RFQ	Datasheet	1206 (3216 Metric), Concave	Multifuse® freeXpansionTM, MF-NSMF	Tape & Reel (TR)	Active	Polymeric	8V	1.25 A	2.5 A	100 A	200 ms	40 mOhms	150 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.126" L x 0.063" W (3.20mm x 1.60mm)	-	0.043" (1.10mm)	-
MF-LSMF075/60X-2 FUSE RESETTABLE 2920 0.75A 60V Bourns Inc.	3,803	-	RFQ	Datasheet	-	-	Tape & Reel (TR)	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
MF-NSML600/6-2 PTC RESET FUSE 6V 6A 1206 Bourns Inc.	3,090	-	RFQ	Datasheet	1206 (3216 Metric), Concave	Multifuse®, MF-NSML/X	Tape & Reel (TR)	Active	Polymeric	6V	6 A	12 A	50 A	5 s	2 mOhms	9 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.128" L x 0.063" W (3.25mm x 1.60mm)	-	0.039" (1.00mm)	-
MF-NSML350/6-2 PTC RESET FUSE 6V 3.5A 1206 Bourns Inc.	2,809	-	RFQ	Datasheet	1206 (3216 Metric), Concave	Multifuse®, MF-NSML/X	Tape & Reel (TR)	Active	Polymeric	6V	3.5 A	7 A	50 A	5 s	2 mOhms	22 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.128" L x 0.063" W (3.25mm x 1.60mm)	-	0.055" (1.40mm)	-
MF-LSMF150/33X-2 2920 RESETTABLE SMD PPTC 1.5A/33 Bourns Inc.	2,254	-	RFQ	Datasheet	2920 (7351 Metric), Concave	Multifuse®, MF-LSMF	Tape & Reel (TR)	Active	Polymeric	33V	1.5 A	-	-	-	-	-	-	-40°C ~ 85°C	Automotive	AEC-Q200	-	Surface Mount	0.290" L x 0.202" W (7.36mm x 5.12mm)	-	-	-
MF-SMHT300-2 PTC RESET FUSE 16V 3.0A 2SMD Bourns Inc.	1,499	-	RFQ	Datasheet	2-SMD	Multifuse®, MF-S	Tape & Reel (TR)	Active	Polymeric	16V	3 A	6 A	100 A	8 s	24 mOhms	83 mOhms	-	-40°C ~ 125°C	Automotive	AEC-Q200	AEC-Q200	Surface Mount	0.344" L x 0.264" W (8.75mm x 6.71mm)	-	0.118" (3.00mm)	-
MF-LSMF110/60X-2 FUSE RESETTABLE 2920 1.1A 60V Bourns Inc.	3,957	-	RFQ	Datasheet	-	-	Tape & Reel (TR)	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
MF-USML400/6-2 PTC RESET FUSE 6V 4A 1210 Bourns Inc.	3,500	-	RFQ	Datasheet	1210 (3225 Metric), Concave	Multifuse®, MF-USML/X	Tape & Reel (TR)	Active	Polymeric	6V	4 A	8 A	50 A	5 s	2 mOhms	18 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.127" L x 0.101" W (3.22mm x 2.58mm)	-	0.047" (1.20mm)	-
MF-NSML550/6-2 PTC RESET FUSE 6V 5.5A 1206 Bourns Inc.	3,235	-	RFQ	Datasheet	1206 (3216 Metric), Concave	Multifuse®, MF-NSML/X	Tape & Reel (TR)	Active	Polymeric	6V	5.5 A	11 A	50 A	5 s	2 mOhms	10 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.128" L x 0.063" W (3.25mm x 1.60mm)	-	0.039" (1.00mm)	-
MF-LSMF260/16X-2 2920 RESETTABLE SMD PPTC 2.6A/16 Bourns Inc.	3,000	-	RFQ	Datasheet	2920 (7351 Metric), Concave	Multifuse®, MF-LSMF	Tape & Reel (TR)	Active	Polymeric	16V	2.6 A	-	-	-	-	-	-	-40°C ~ 85°C	Automotive	AEC-Q200	-	Surface Mount	0.290" L x 0.202" W (7.36mm x 5.12mm)	-	-	-
TRF250-145US-B-0.5 PTC RESET FUSE 60V 145MA RADIAL Littelfuse Inc.	1,890	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, TRF250	Bag	Active	Polymeric	60V (250V Int)	145 mA	290 mA	3 A	4 s	3.5 Ohms	14 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.236" L x 0.150" W (6.00mm x 3.80mm)	0.394" (10.00mm)	-	0.197" (5.00mm)
MF-LSMF125/33X-2 2920 RESETTABLE SMD PPTC 1.25A/3 Bourns Inc.	4,457	-	RFQ	Datasheet	2920 (7351 Metric), Concave	Multifuse®, MF-LSMF	Tape & Reel (TR)	Active	Polymeric	33V	1.25 A	-	-	-	-	-	-	-40°C ~ 85°C	Automotive	AEC-Q200	-	Surface Mount	0.290" L x 0.202" W (7.36mm x 5.12mm)	-	-	-
TCF250-120T-B-0.5 PTC RESET FUSE 60V 120MA SMD Littelfuse Inc.	1,216	-	RFQ	Datasheet	Nonstandard SMD	PolySwitch®, TCF250	Bag	Active	Polymeric	60V (250V Int)	120 mA	240 mA	3 A	600 ms	6.3 Ohms	18 Ohms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.217" L x 0.217" W (5.50mm x 5.50mm)	-	0.091" (2.30mm)	-
MF-LSMF200/24X-2 2920 RESETTABLE SMD PPTC 2.0A/24 Bourns Inc.	2,839	-	RFQ	Datasheet	2920 (7351 Metric), Concave	Multifuse®, MF-LSMF	Tape & Reel (TR)	Active	Polymeric	24V	2 A	-	-	-	-	-	-	-40°C ~ 85°C	Automotive	AEC-Q200	-	Surface Mount	0.290" L x 0.202" W (7.36mm x 5.12mm)	-	-	-
0ZRV0012FF1E SENSOR PTC RADIAL Bel Fuse Inc.	3,000	-	RFQ	Datasheet	Radial, Disc	0ZRV	Bulk	Active	Ceramic	277V (305V Int)	120 mA	300 mA	1.2 A	18 s	3 Ohms	12 Ohms	-	-20°C ~ 85°C	-	-	AEC-Q200	Through Hole	0.319" L x 0.150" W (8.10mm x 3.80mm)	0.504" (12.80mm)	-	0.201" (5.10mm)
0ZRV0016FF1E SENSOR PTC RADIAL Bel Fuse Inc.	3,000	-	RFQ	Datasheet	Radial, Disc	0ZRV	Bulk	Active	Ceramic	277V (305V Int)	160 mA	370 mA	1.6 A	18 s	2.3 Ohms	8 Ohms	-	-20°C ~ 85°C	-	-	AEC-Q200	Through Hole	0.291" L x 0.150" W (7.40mm x 3.80mm)	0.559" (14.20mm)	-	0.201" (5.10mm)
TRF250-120T-RF-B-0.5 PTC RESET FUSE 60V 120MA RADIAL Littelfuse Inc.	6,560	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, TRF250	Bag	Active	Polymeric	60V (250V Int)	120 mA	240 mA	3 A	900 ms	6 Ohms	16 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.256" L x 0.181" W (6.50mm x 4.60mm)	0.433" (11.00mm)	-	0.197" (5.00mm)
MF-RX250/72-0-14 FUSE PTC RESETTABLE Bourns Inc.	2,933	-	RFQ	Datasheet	Radial, Disc	MF-RX/72	Bulk	Active	-	72V	2.5 A	5 A	40 A	15.6 s	-	-	-	-	-	-	-	Through Hole	0.839" L x 0.122" W (21.30mm x 3.10mm)	1.039" (26.40mm)	-	0.402" (10.20mm)
TRF250-120UT PTC RESET FUSE 60V 120MA RADIAL Littelfuse Inc.	1,960	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, TRF250	Bag	Active	Polymeric	60V (250V Int)	120 mA	240 mA	3 A	1.5 s	7 Ohms	16 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.236" L x 0.150" W (6.00mm x 3.80mm)	0.394" (10.00mm)	-	0.197" (5.00mm)

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