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
FSMD035-R RESETTABLE FUSE - SMD, 1812 SIZE RFE/Fuzetec	2,000	-	RFQ	Datasheet	1812 (4532 Metric), Concave	FSMD1812	Tape & Reel (TR)	Active	-	16V	350 mA	700 mA	100 A	100 ms	320 mOhms	1.5 Ohms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.028" (0.70mm)	-
FSMD125-R RESETTABLE FUSE - SMD, 1812 SIZE RFE/Fuzetec	2,000	-	RFQ	Datasheet	1812 (4532 Metric), Concave	FSMD1812	Tape & Reel (TR)	Active	-	6V	1.25 A	2.5 A	100 A	400 ms	50 mOhms	140 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.022" (0.55mm)	-
FSMD075-R RESETTABLE FUSE - SMD, 1812 SIZE RFE/Fuzetec	2,000	-	RFQ	Datasheet	1812 (4532 Metric), Concave	FSMD1812	Tape & Reel (TR)	Active	-	16V	750 mA	1.5 A	100 A	200 ms	110 mOhms	450 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.026" (0.65mm)	-
FSMD110-R RESETTABLE FUSE - SMD, 1812 SIZE RFE/Fuzetec	2,000	-	RFQ	Datasheet	1812 (4532 Metric), Concave	FSMD1812	Tape & Reel (TR)	Active	-	8V	1.1 A	2.2 A	100 A	300 ms	40 mOhms	210 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.022" (0.55mm)	-
FSMD035-0805-R RESETTABLE FUSE - SMD, 0805 SIZE RFE/Fuzetec	4,000	-	RFQ	Datasheet	0805 (2012 Metric), Concave	FSMD0805	Tape & Reel (TR)	Active	-	6V	350 mA	750 mA	100 A	100 ms	250 mOhms	1.2 Ohms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.085" L x 0.053" W (2.15mm x 1.35mm)	-	0.030" (0.75mm)	-
FSMD010-0805-R RESETTABLE FUSE - SMD, 0805 SIZE RFE/Fuzetec	4,000	-	RFQ	Datasheet	0805 (2012 Metric), Concave	FSMD0805	Tape & Reel (TR)	Active	-	15V	100 mA	300 mA	100 A	1.5 s	700 mOhms	6 Ohms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.085" L x 0.053" W (2.15mm x 1.35mm)	-	0.039" (1.00mm)	-
FSMD110-16-R RESETTABLE FUSE - SMD, 1812 SIZE RFE/Fuzetec	2,000	-	RFQ	Datasheet	1812 (4532 Metric), Concave	FSMD1812	Tape & Reel (TR)	Active	-	16V	1.1 A	2.2 A	100 A	500 ms	60 mOhms	180 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.035" (0.90mm)	-
FSMD150-R RESETTABLE FUSE - SMD, 1812 SIZE RFE/Fuzetec	2,000	-	RFQ	Datasheet	1812 (4532 Metric), Concave	FSMD1812	Tape & Reel (TR)	Active	-	8V	1.5 A	3 A	100 A	500 ms	40 mOhms	110 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.022" (0.55mm)	-
FSMD020-1206-R RESETTABLE FUSE - SMD, 1206 SIZE RFE/Fuzetec	12,000	-	RFQ	Datasheet	1206 (3216 Metric), Concave	FSMD1206	Tape & Reel (TR)	Active	-	30V	200 mA	400 mA	100 A	100 ms	600 mOhms	2.5 Ohms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.128" L x 0.065" W (3.25mm x 1.65mm)	-	0.030" (0.75mm)	-
FSMD016-1206-R RESETTABLE FUSE - SMD, 1206 SIZE RFE/Fuzetec	12,000	-	RFQ	Datasheet	1206 (3216 Metric), Concave	FSMD1206	Tape & Reel (TR)	Active	-	48V	160 mA	450 mA	100 A	300 ms	1.1 Ohms	5 Ohms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.128" L x 0.065" W (3.25mm x 1.65mm)	-	0.030" (0.75mm)	-

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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.