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
16R700GKLF POLYFUSE RADIAL Littelfuse Inc.	5,153	-	RFQ	Datasheet	-	-	Bulk	Obsolete	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
30R500UFX1001 POLYFUSE RADIAL Littelfuse Inc.	3,078	-	RFQ	Datasheet	-	-	Bulk	Obsolete	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
600R150FX1001 POLYFUSE RADIAL Littelfuse Inc.	5,929	-	RFQ	Datasheet	-	-	Bulk	Obsolete	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
250R170-CMR POLYFUSE RADIAL Littelfuse Inc.	2,414	-	RFQ	Datasheet	-	-	Tape & Reel (TR)	Obsolete	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
MPTS1206L005 PTC RESET FUSE 60V 0.05A 1206 Meritek	8,280	-	RFQ	Datasheet	1206 (3216 Metric)	MPTS	Tape & Reel (TR)	Active	Polymeric	60V	50 mA	150 mA	100 A	1.5 s	3.6 Ohms	50 Ohms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.128" L x 0.065" W (3.25mm x 1.65mm)	-	0.033" (0.85mm)	-
MPTS2920L100 PTC RESET FUSE 33V 1.1A 2920 Meritek	8,162	-	RFQ	Datasheet	2920 (7351 Metric)	MPTS	Tape & Reel (TR)	Active	Polymeric	33V	1.1 A	2.2 A	100 A	500 ms	90 mOhms	410 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.290" L x 0.202" W (7.36mm x 5.12mm)	-	0.039" (1.00mm)	-
FSMD250-2920-R RESETTABLE FUSE - SMD, 2920 SIZE RFE/Fuzetec	5,969	-	RFQ	Datasheet	2920 (7351 Metric), Concave	FSMD2920	Tape & Reel (TR)	Active	-	16V	2.5 A	5 A	100 A	16 s	25 mOhms	85 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.290" L x 0.202" W (7.36mm x 5.12mm)	-	0.035" (0.90mm)	-
FRU160-30F RESETTABLE FUSE - PPTC RADIAL LE RFE/Fuzetec	3,362	-	RFQ	Datasheet	Radial, Disc	FRU	Bulk	Active	-	30V	1.6 A	3.2 A	100 A	8 s	30 mOhms	110 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.350" L x 0.118" W (8.90mm x 3.00mm)	0.598" (15.20mm)	-	0.201" (5.10mm)
FSMD110-16-1206R RESETTABLE FUSE - SMD, 1206 SIZE RFE/Fuzetec	4,901	-	RFQ	Datasheet	1206 (3216 Metric), Concave	FSMD1206	Tape & Reel (TR)	Active	-	16V	1.1 A	2.2 A	100 A	300 ms	40 mOhms	180 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.128" L x 0.065" W (3.25mm x 1.65mm)	-	0.055" (1.40mm)	-
MF-LSMF400/12X-2 PTC RESETTABLE 4.0A 12V SMD 2920 Bourns Inc.	4,420	-	RFQ	Datasheet	2920 (7351 Metric), Concave	Multifuse®, MF-LSMF	Tape & Reel (TR)	Active	Polymeric	12V	4 A	8 A	40 A	15 s	5 mOhms	-	-	-40°C ~ 85°C	Automotive	AEC-Q200	-	Surface Mount	0.290" L x 0.202" W (7.36mm x 5.12mm)	-	0.063" (1.60mm)	-
1210L010/90YR 1210L Littelfuse Inc.	5,398	-	RFQ	Datasheet	1210 (3225 Metric), Concave	PolySwitch® 1210L	Tape & Reel (TR)	Discontinued at Digi-Key	Polymeric	90V	100 mA	250 mA	10 A	300 ms	1.5 Ohms	15 Ohms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.127" L x 0.101" W (3.22mm x 2.58mm)	-	0.049" (1.25mm)	-
KMC3S010RY Polymer PTC 0.1A Resettable Fuse Thinking Electronics Industrial Co.	3,730	-	RFQ	Datasheet	1206 (3216 Metric), Concave	KMC	Tape & Reel (TR)	Active	Polymeric	60V	100 mA	250 mA	100 A	1 s	1.6 Ohms	15 Ohms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.128" L x 0.065" W (3.25mm x 1.65mm)	-	0.035" (0.90mm)	-
KRG0300300SBY Polymer PTC Resettable Fuse 30V Thinking Electronics Industrial Co.	8,455	-	RFQ	Datasheet	Radial, Disc	KRG	Bag	Active	Polymeric	30V	3 A	6 A	40 A	10.8 s	20 mOhms	80 mOhms	50 mOhms	-40°C ~ 85°C	-	-	-	Through Hole	0.449" L x 0.138" W (11.40mm x 3.50mm)	0.681" (17.30mm)	-	0.197" (5.00mm)
R1812-150-24-R PTC Fuse - SMD 1812, 1.5A 24VDC OptiFuse	5,087	-	RFQ	Datasheet	1812 (4532 Metric), Concave	-	Tape & Reel (TR)	Active	Polymeric	24V	1.5 A	3 A	100 A	500 ms	40110 mOhms	120 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.051" (1.30mm)	-
B59930C0160A051 PTC THERMISTORS EPCOS - TDK Electronics	6,069	-	RFQ	Datasheet	-	-	Bulk	Obsolete	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
RS16-600 PTC Fuse - Radial Lead, 16V 6A OptiFuse	5,086	-	RFQ	Datasheet	Radial, Disc	RS16	Bulk	Active	Polymeric	16V	6 A	10.2 A	100 A	5.8 s	0.009 Ohms	0.033 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	-	-	-	-

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PTC Resettable Fuses FAQ

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Compare the manufacturer part number, electrical specifications, package, operating conditions and application requirements. The product datasheet should be used to confirm technical suitability.

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Yes. Our sourcing team can review shortage and obsolete-part requirements and help check available supply channels or possible alternatives when appropriate.

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