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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MF-PSMF035X-2PTC RESET FUSE 6V 350MA 0805 |
9,328 | - |
|
Datasheet | 0805 (2012 Metric), Concave | Multifuse®, MF-PSMF | Tape & Reel (TR) | Active | Polymeric | 6V | 350 mA | 750 mA | 40 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) | - | 0.033" (0.85mm) | - |
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MF-R300-2PTC RESET FUSE 30V 3A RADIAL |
9,247 | - |
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Datasheet | Radial, Disc | Multifuse®, MF-R | Tape & Reel (TR) | Active | Polymeric | 30V | 3 A | 6 A | 40 A | 10.8 s | 20 mOhms | 80 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.472" L x 0.118" W (12.00mm x 3.00mm) | 0.720" (18.30mm) | - | 0.201" (5.10mm) |
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MF-R400-2-14PTC RESET FUSE 30V 4A RADIAL |
26,393 | - |
|
Datasheet | Radial, Disc | Multifuse®, MF-R | Tape & Reel (TR) | Active | Polymeric | 30V | 4 A | 8 A | 40 A | 12.7 s | 10 mOhms | 50 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.567" L x 0.118" W (14.40mm x 3.00mm) | 0.976" (24.80mm) | - | 0.201" (5.10mm) |
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MF-RX185/72-2PTC RESET FUSE 72V 1.85A RADIAL |
14,479 | - |
|
Datasheet | Radial, Disc | Multifuse®, MF-RX/72 | Tape & Reel (TR) | Active | Polymeric | 72V | 1.85 A | 3.7 A | 40 A | 12.6 s | 80 mOhms | 190 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.701" L x 0.122" W (17.80mm x 3.10mm) | 0.902" (22.90mm) | - | 0.201" (5.10mm) |
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MF-R500PTC RESET FUSE 30V 5A RADIAL |
1,595 | - |
|
Datasheet | Radial, Disc | Multifuse®, MF-R | Bulk | Active | Polymeric | 30V | 5 A | 10 A | 40 A | 14.5 s | 10 mOhms | 50 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.685" L x 0.118" W (17.40mm x 3.00mm) | 0.980" (24.90mm) | - | 0.402" (10.20mm) |
|
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MF-R500-2PTC RESET FUSE 30V 5A RADIAL |
8,926 | - |
|
Datasheet | Radial, Disc | Multifuse®, MF-R | Tape & Reel (TR) | Active | Polymeric | 30V | 5 A | 10 A | 40 A | 14.5 s | 10 mOhms | 50 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.685" L x 0.118" W (17.40mm x 3.00mm) | 0.980" (24.90mm) | - | 0.402" (10.20mm) |
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CMF-RL10-0PTC RESET FUSE 220V 150MA RADIAL |
9,658 | - |
|
Datasheet | Radial, Disc | CMF-RL | Bulk | Active | Ceramic | 220V (600V Int) | 150 mA | 300 mA | 3 A | 450 ms | - | - | 10 Ohms | -40°C ~ 125°C | - | - | - | Through Hole | 0.374" L x 0.177" W (9.50mm x 4.50mm) | 0.532" (13.50mm) | - | 0.197" (5.00mm) |
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MF-RX250/72-0PTC RESET FUSE 72V 2.5A RADIAL |
7,992 | - |
|
Datasheet | Radial, Disc | Multifuse®, MF-RX/72 | Bulk | Active | Polymeric | 72V | 2.5 A | 5 A | 40 A | 15.6 s | 50 mOhms | 130 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.839" L x 0.122" W (21.30mm x 3.10mm) | 1.039" (26.40mm) | - | 0.402" (10.20mm) |
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MF-R600PTC RESET FUSE 30V 6A RADIAL |
6,498 | - |
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Datasheet | Radial, Disc | Multifuse®, MF-R | Bulk | Active | Polymeric | 30V | 6 A | 12 A | 40 A | 16 s | 5 mOhms | 40 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.760" L x 0.118" W (19.30mm x 3.00mm) | 1.256" (31.90mm) | - | 0.402" (10.20mm) |
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MF-USMF075-2PTC RESET FUSE 6V 750MA 1210 |
5,649 | - |
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Datasheet | 1210 (3225 Metric), Concave | Multifuse®, MF-USMF | Tape & Reel (TR) | Active | Polymeric | 6V | 750 mA | 1.5 A | 40 A | 100 ms | 70 mOhms | 450 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.033" (0.85mm) | - |
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.
