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
FSMD035-1206-R RESETTABLE FUSE - SMD, 1206 SIZE RFE/Fuzetec	12,000	-	RFQ	Datasheet	1206 (3216 Metric), Concave	FSMD1206	Tape & Reel (TR)	Active	-	16V	350 mA	750 mA	100 A	100 ms	300 mOhms	1.2 Ohms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.128" L x 0.065" W (3.25mm x 1.65mm)	-	0.030" (0.75mm)	-
FSMD012-1206-R RESETTABLE FUSE - SMD, 1206 SIZE RFE/Fuzetec	12,000	-	RFQ	Datasheet	1206 (3216 Metric), Concave	FSMD1206	Tape & Reel (TR)	Active	-	48V	120 mA	390 mA	100 A	200 ms	1.4 Ohms	6.5 Ohms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.128" L x 0.065" W (3.25mm x 1.65mm)	-	0.033" (0.85mm)	-
FSMD050-0805R RESETTABLE FUSE - SMD, 0805 SIZE RFE/Fuzetec	12,000	-	RFQ	Datasheet	0805 (2012 Metric), Concave	FSMD0805	Tape & Reel (TR)	Active	-	6V	500 mA	1 A	100 A	100 ms	150 mOhms	850 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.085" L x 0.053" W (2.15mm x 1.35mm)	-	0.049" (1.25mm)	-
FSMD005-1206-R RESETTABLE FUSE - SMD, 1206 SIZE RFE/Fuzetec	12,000	-	RFQ	Datasheet	1206 (3216 Metric), Concave	FSMD1206	Tape & Reel (TR)	Active	-	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)	-
FSMD110-1206R RESETTABLE FUSE - SMD, 1206 SIZE RFE/Fuzetec	3,000	-	RFQ	Datasheet	1206 (3216 Metric), Concave	FSMD1206	Tape & Reel (TR)	Active	-	8V	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)	-	0.039" (1.00mm)	-
FSMD100-1206R RESETTABLE FUSE - SMD, 1206 SIZE RFE/Fuzetec	3,000	-	RFQ	Datasheet	1206 (3216 Metric), Concave	FSMD1206	Tape & Reel (TR)	Active	-	6V	1 A	1.8 A	100 A	300 ms	55 mOhms	210 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.128" L x 0.065" W (3.25mm x 1.65mm)	-	0.039" (1.00mm)	-
FSMD125-16R RESETTABLE FUSE - SMD, 1812 SIZE RFE/Fuzetec	1,500	-	RFQ	Datasheet	1812 (4532 Metric), Concave	FSMD1812	Tape & Reel (TR)	Active	-	16V	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)	-	0.039" (1.00mm)	-
FSMD075-33R RESETTABLE FUSE - SMD, 1812 SIZE RFE/Fuzetec	10,500	-	RFQ	Datasheet	1812 (4532 Metric), Concave	FSMD1812	Tape & Reel (TR)	Active	-	33V	750 mA	1.5 A	100 A	200 ms	110 mOhms	400 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.061" (1.55mm)	-
FSMD260R RESETTABLE FUSE - SMD, 1812 SIZE RFE/Fuzetec	2,000	-	RFQ	Datasheet	1812 (4532 Metric), Concave	FSMD1812	Tape & Reel (TR)	Active	-	8V	2.6 A	5 A	100 A	2.5 s	15 mOhms	47 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.047" (1.20mm)	-
FSMD160-12R RESETTABLE FUSE - SMD, 1812 SIZE RFE/Fuzetec	2,000	-	RFQ	Datasheet	1812 (4532 Metric), Concave	FSMD1812	Tape & Reel (TR)	Active	-	12V	1.6 A	3.2 A	100 A	1 s	30 mOhms	100 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.053" (1.35mm)	-

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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.