PTC Resettable Fuses

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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
MINIASMDC200F/16-2 PTC RESET FUSE 16V 2A 1812 Littelfuse Inc.	2,082	-	RFQ	Datasheet	1812 (4532 Metric), Concave	PolySwitch®, miniASMD	Tape & Reel (TR)	Active	Polymeric	16V	2 A	4 A	40 A	5 s	20 mOhms	85 mOhms	-	-40°C ~ 85°C	Automotive	AEC-Q200	-	Surface Mount	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.048" (1.22mm)	-
RKEF400-2 RKEF400-2 Littelfuse Inc.	3,988	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RKEF	Tape & Reel (TR)	Active	Polymeric	60V	4 A	8 A	40 A	24 s	14 mOhms	60 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.827" L x 0.118" W (21.00mm x 3.00mm)	0.980" (24.90mm)	-	0.400" (10.15mm)
RGEF1400-2 PTC RESET FUSE 16V 14A RADIAL Littelfuse Inc.	1,119	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RGEF	Tape & Reel (TR)	Active	Polymeric	16V	14 A	23.8 A	100 A	9 s	2.6 mOhms	6.4 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.925" L x 0.114" W (23.50mm x 2.90mm)	1.098" (27.90mm)	-	0.400" (10.15mm)
RHEF900 PTC RESET FUSE 16V 9A RADIAL Littelfuse Inc.	199	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RHEF	Bag	Active	Polymeric	16V	9 A	16.5 A	100 A	10 s	7.4 mOhms	17 mOhms	-	-40°C ~ 125°C	-	-	-	Through Hole	0.650" L x 0.118" W (16.50mm x 3.00mm)	1.012" (25.70mm)	-	0.199" (5.05mm)
TS250-130F-2 PTC RESET FUSE 60V 130MA 2SMD Littelfuse Inc.	7,437	-	RFQ	Datasheet	2-SMD	PolySwitch®, TS250	Tape & Reel (TR)	Active	Polymeric	60V (600V Int)	130 mA	260 mA	1 A	2.5 s	6.5 Ohms	20 Ohms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.352" L x 0.291" W (8.95mm x 7.40mm)	-	0.134" (3.40mm)	-
RUEF900K PTC RESET FUSE 30V 9A RADIAL Littelfuse Inc.	232	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RUEF	Bag	Active	Polymeric	30V	9 A	18 A	100 A	20 s	5 mOhms	20 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.949" L x 0.118" W (24.10mm x 3.00mm)	1.220" (31.00mm)	-	0.400" (10.15mm)
RHEF1000 PTC RESET FUSE 16V 10A RADIAL Littelfuse Inc.	385	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RHEF	Bag	Active	Polymeric	16V	10 A	18.5 A	100 A	9 s	6.2 mOhms	15 mOhms	-	-40°C ~ 125°C	-	-	-	Through Hole	0.689" L x 0.118" W (17.50mm x 3.00mm)	1.043" (26.50mm)	-	0.400" (10.15mm)
TRF600-160-2 PTC RESET FUSE 250V 160MA RADIAL Littelfuse Inc.	126	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, TRF600	Tape & Reel (TR)	Active	Polymeric	250V (600V Int)	160 mA	320 mA	60 A	18 s	4 Ohms	18 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.630" L x 0.236" W (16.00mm x 6.00mm)	0.496" (12.60mm)	-	0.200" (5.08mm)
TS250-130F-RB-2 PTC RESET FUSE 60V 130MA 2SMD Littelfuse Inc.	7,150	-	RFQ	Datasheet	2-SMD	PolySwitch®, TS250	Tape & Reel (TR)	Active	Polymeric	60V (600V Int)	130 mA	260 mA	1 A	1.5 s	9 Ohms	20 Ohms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.352" L x 0.291" W (8.95mm x 7.40mm)	-	0.134" (3.40mm)	-
LVR100K-240 PTC RESET FUSE Littelfuse Inc.	135	-	RFQ	Datasheet	Radial, Disc	LVR	Bulk	Active	Polymeric	240V (265V Int)	1 A	2 A	10 A	21 s	218 mOhms	580 mOhms	334 mOhms	-20°C ~ 85°C	-	-	-	Through Hole	0.736" Dia (18.70mm)	1.134" (28.80mm)	-	0.400" (10.15mm)

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FREQUENTLY ASKED QUESTIONS

PTC Resettable Fuses FAQ

Common questions about filtering, comparing and sourcing PTC Resettable Fuses components.

How can I narrow the PTC Resettable Fuses selection?

Use the available manufacturer and technical parameter filters to reduce the product list. Compare the remaining part numbers against your electrical, package and application requirements.

Should I confirm the datasheet before selecting a part?

Yes. Always review the manufacturer datasheet to confirm ratings, package, operating conditions and other technical details before finalizing a component for your design.

Can Winsun (HK) Electronics help source a specific PTC Resettable Fuses part number?

Yes. Send the exact manufacturer part number and required quantity for availability, lead-time and quotation support.

Do you support BOM, shortage or alternative-part requirements?

Yes. You can submit a BOM or shortage list for sourcing assistance. Where appropriate, our team can also help review possible alternative-part options.