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
FSMD050-1206-R RESETTABLE FUSE - SMD, 1206 SIZE RFE/Fuzetec	11,900	-	RFQ	Datasheet	1206 (3216 Metric), Concave	FSMD1206	Tape & Reel (TR)	Active	-	8V	500 mA	1 A	100 A	100 ms	150 mOhms	700 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.128" L x 0.065" W (3.25mm x 1.65mm)	-	0.022" (0.55mm)	-
FSMD050-R RESETTABLE FUSE - SMD, 1812 SIZE RFE/Fuzetec	1,900	-	RFQ	Datasheet	1812 (4532 Metric), Concave	FSMD1812	Tape & Reel (TR)	Active	-	16V	500 mA	1 A	100 A	150 ms	150 mOhms	1 Ohms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.026" (0.65mm)	-
FSMD014-R RESETTABLE FUSE - SMD, 1812 SIZE RFE/Fuzetec	1,890	-	RFQ	Datasheet	1812 (4532 Metric), Concave	FSMD1812	Tape & Reel (TR)	Active	-	60V	140 mA	300 mA	100 A	8 ms	1.2 Ohms	6.5 Ohms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.035" (0.90mm)	-
FSMD030-R RESETTABLE FUSE - SMD, 1812 SIZE RFE/Fuzetec	1,750	-	RFQ	Datasheet	1812 (4532 Metric), Concave	FSMD1812	Tape & Reel (TR)	Active	-	30V	300 mA	600 mA	100 A	100 ms	200 mOhms	1.75 Ohms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.028" (0.70mm)	-
FSMD035-30-R RESETTABLE FUSE - SMD, 1812 SIZE RFE/Fuzetec	1,540	-	RFQ	Datasheet	1812 (4532 Metric), Concave	FSMD1812	Tape & Reel (TR)	Active	-	30V	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)	-
FSMD020-R RESETTABLE FUSE - SMD, 1812 SIZE RFE/Fuzetec	1,500	-	RFQ	Datasheet	1812 (4532 Metric), Concave	FSMD1812	Tape & Reel (TR)	Active	-	30V	200 mA	400 mA	100 A	20 ms	800 mOhms	5 Ohms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.035" (0.90mm)	-
FSMD020-0805-R RESETTABLE FUSE - SMD, 0805 SIZE RFE/Fuzetec	3,700	-	RFQ	Datasheet	0805 (2012 Metric), Concave	FSMD0805	Tape & Reel (TR)	Active	-	9V	200 mA	500 mA	100 A	20 ms	400 mOhms	3.5 Ohms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.085" L x 0.053" W (2.15mm x 1.35mm)	-	0.039" (1.00mm)	-
FSMD075-1206R RESETTABLE FUSE - SMD, 1206 SIZE RFE/Fuzetec	2,950	-	RFQ	Datasheet	1206 (3216 Metric), Concave	FSMD1206	Tape & Reel (TR)	Active	-	8V	750 mA	1.5 A	100 A	200 ms	90 mOhms	290 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.128" L x 0.065" W (3.25mm x 1.65mm)	-	0.049" (1.25mm)	-
FSMD010-R RESETTABLE FUSE - SMD, 1812 SIZE RFE/Fuzetec	1,950	-	RFQ	Datasheet	1812 (4532 Metric), Concave	FSMD1812	Tape & Reel (TR)	Active	-	60V	100 mA	300 mA	100 A	20 ms	1.6 Ohms	15 Ohms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.035" (0.90mm)	-
FSMD160-R RESETTABLE FUSE - SMD, 1812 SIZE RFE/Fuzetec	1,400	-	RFQ	Datasheet	1812 (4532 Metric), Concave	FSMD1812	Tape & Reel (TR)	Active	-	8V	1.6 A	3.2 A	100 A	500 ms	30 mOhms	100 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.035" (0.90mm)	-

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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.