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-R300-AP-99PTC RESET FUSE 30V 3A RADIAL |
2,664 | - |
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Datasheet | Radial, Disc | Multifuse®, MF-R | Tape & Box (TB) | Obsolete | 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-RX375-AP-99PTC RESET FUSE 60V 3.75A RADIAL |
5,804 | - |
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Datasheet | Radial, Disc | Multifuse®, MF-RX | Tape & Box (TB) | Obsolete | Polymeric | 60V | 3.75 A | 7.5 A | 40 A | 24 s | 30 mOhms | 80 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 1.118" Dia x 0.122" T (28.40mm x 3.10mm) | 1.319" (33.50mm) | - | 0.402" (10.20mm) |
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MF-R1100-2-99PTC RESET FUSE 16V 11A RADIAL |
3,028 | - |
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Datasheet | Radial, Disc | Multifuse®, MF-R | Tape & Reel (TR) | Obsolete | Polymeric | 16V | 11 A | 22 A | 100 A | 20 s | 3 mOhms | 14 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.953" L x 0.118" W (24.20mm x 3.00mm) | 1.295" (32.90mm) | - | 0.402" (10.20mm) |
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MF-R500-2-99PTC RESET FUSE 30V 5A RADIAL |
3,730 | - |
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Datasheet | Radial, Disc | Multifuse®, MF-R | Tape & Reel (TR) | Obsolete | 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-R800-2-99PTC RESET FUSE 30V 8A RADIAL |
7,567 | - |
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Datasheet | Radial, Disc | Multifuse®, MF-R | Tape & Reel (TR) | Obsolete | Polymeric | 30V | 8 A | 16 A | 40 A | 18.8 s | 5 mOhms | 30 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.953" L x 0.118" W (24.20mm x 3.00mm) | 1.295" (32.90mm) | - | 0.402" (10.20mm) |
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MF-NSML380-2PTC RESET FUSE 6V 3.8A 1206 |
5,983 | - |
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Datasheet | 1206 (3216 Metric), Concave | Multifuse®, MF-NSML | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 3.8 A | 8 A | 50 A | 5 s | 1.5 mOhms | 14 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.128" L x 0.063" W (3.25mm x 1.60mm) | - | 0.024" (0.60mm) | - |
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MF-USML450-2PTC RESET FUSE 6V 4.5A 1210 |
9,295 | - |
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Datasheet | 1210 (3225 Metric), Concave | Multifuse®, MF-USML | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 4.5 A | 9 A | 50 A | 2 s | 1 mOhms | 15 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.047" (1.20mm) | - |
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MF-USML500-2PTC RESET FUSE 6V 5A 1210 |
2,528 | - |
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Datasheet | 1210 (3225 Metric), Concave | Multifuse®, MF-USML | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 5 A | 10 A | 50 A | 2 s | 1 mOhms | 14.5 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.047" (1.20mm) | - |
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MF-USML200-2PTC RESET FUSE 6V 2A 1210 |
6,755 | - |
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Datasheet | 1210 (3225 Metric), Concave | Multifuse®, MF-USML | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 2 A | 4 A | 50 A | 3 s | 5 mOhms | 30 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.024" (0.60mm) | - |
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MF-USML250-2PTC RESET FUSE 6V 2.5A 1210 |
8,190 | - |
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Datasheet | 1210 (3225 Metric), Concave | Multifuse®, MF-USML | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 2.5 A | 5 A | 50 A | 3.5 s | 4.5 mOhms | 22 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.024" (0.60mm) | - |
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.
