PTC Resettable Fuses
Use the filters and product table below to compare PTC Resettable Fuses components by manufacturer, availability, pricing reference and technical specifications. Review datasheets and key parameters to narrow the selection for your application.
If you already have a target part number, package, rating or quantity, send the requirement to Winsun (HK) Electronics for availability checks, BOM sourcing, shortage support and quotation assistance.
| Photo | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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SMD260-2POLYSWITCH 2.6A RESET FUSE SMD |
4,918 | - |
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Datasheet | 2920 (7351 Metric) | PolySwitch®, SMD | Cut Tape (CT) | Obsolete | Polymeric | 6V | 2.6 A | 5.2 A | 40 A | 20 s | 25 mOhms | 75 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.118" (3.00mm) | - |
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SMD300-2POLYSWITCH 3.00A RESET FUSE SMD |
2,357 | - |
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Datasheet | 2920 (7351 Metric) | PolySwitch®, SMD | Cut Tape (CT) | Obsolete | Polymeric | 6V | 3 A | 6 A | 40 A | 35 s | 15 mOhms | 48 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.118" (3.00mm) | - |
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MINISMDC350LR-2PTC RESET FUSE 6V 3.5A 1812 |
6,094 | - |
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Datasheet | 1812 (4532 Metric), Concave | PolySwitch® | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 3.5 A | 8 A | 50 A | - | 6 mOhms | 25 mOhms | - | - | - | - | - | Surface Mount | 0.179" L x 0.128" W (4.55mm x 3.24mm) | - | 0.017" (0.43mm) | - |
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NANOSMD175LR-2PTC RESET FUSE 6V 1.75A 1206 |
3,371 | - |
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Datasheet | 1206 (3216 Metric) | PolySwitch®, LoRho | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 1.75 A | 5 A | 50 A | 1 s | 8 mOhms | - | - | - | - | - | - | Surface Mount | 0.127" L x 0.063" W (3.22mm x 1.60mm) | - | 0.039" (1.00mm) | - |
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NANOSMD350LR-2PTC RESET FUSE 6V 3.5A 1206 |
4,572 | - |
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Datasheet | 1206 (3216 Metric) | PolySwitch®, LoRho | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 3.5 A | 6.3 A | 50 A | 5 s | 4 mOhms | - | - | - | - | - | - | Surface Mount | 0.127" L x 0.063" W (3.22mm x 1.61mm) | - | 0.039" (1.00mm) | - |
, Concave.jpg "FEMTOSMDC035F-02")
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FEMTOSMDC035F-02PTC RESET FUSE 6V 350MA 0603 |
2,750 | - |
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Datasheet | 0603 (1608 Metric), Concave | PolySwitch®, femtoSMD | Tape & Reel (TR) | Active | Polymeric | 6V | 350 mA | 700 mA | 40 A | 100 ms | 280 mOhms | 1 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.063" L x 0.032" W (1.60mm x 0.80mm) | - | 0.030" (0.75mm) | - |
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NANOSMD350LR-C-2PTC RESET FUSE 12V 3.5A 1206 |
6,032 | - |
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Datasheet | 1206 (3216 Metric) | PolySwitch®, LoRho | Tape & Reel (TR) | Obsolete | Polymeric | 12V | 3.5 A | 6.3 A | 9 A | 5 s | 4 mOhms | 18 mOhms | - | -20°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.063" W (3.22mm x 1.60mm) | - | 0.032" (0.80mm) | - |
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NANOSMD400LR-C-2PTC RESET FUSE 12V 4A 1206 |
3,912 | - |
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Datasheet | 1206 (3216 Metric) | PolySwitch®, LoRho | Tape & Reel (TR) | Obsolete | Polymeric | 12V | 4 A | 8 A | 9 A | 2 s | 4 mOhms | 10 mOhms | - | -20°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.063" W (3.22mm x 1.60mm) | - | 0.032" (0.80mm) | - |
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NANOSMD380LR-2PTC RESET FUSE 6V 3.8A 1206 |
7,464 | - |
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Datasheet | 1206 (3216 Metric) | PolySwitch®, microSMD | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 3.8 A | 8 A | 50 A | 10 s | 4 mOhms | 14 mOhms | - | -40°C ~ 80°C | - | - | - | Surface Mount | 0.127" L x 0.063" W (3.22mm x 1.61mm) | - | 0.039" (1.00mm) | - |
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NANOSMD400LR-2PTC RESET FUSE 6V 4A 1206 |
7,585 | - |
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Datasheet | 1206 (3216 Metric) | PolySwitch®, microSMD | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 4 A | 8 A | 50 A | 2 s | 4 mOhms | 10 mOhms | - | -40°C ~ 80°C | - | - | - | Surface Mount | 0.127" L x 0.063" W (3.22mm x 1.61mm) | - | 0.039" (1.00mm) | - |
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.
