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-R025-2-17PTC RESETTABLE 0.25A 60V RADIAL |
9,217 | - |
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Datasheet | Radial, Disc | Multifuse®, MF-R | Tape & Reel (TR) | Active | Polymeric | 60V | 250 mA | 500 mA | 40 A | 2.5 s | 1 Ohms | 3 Ohms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.291" Dia x 0.122" T (7.40mm x 3.10mm) | 0.500" (12.70mm) | - | 0.201" (5.10mm) |
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MF-R110-0-17PTC RESETTABLE 1.1A 30V RADIAL L |
6,269 | - |
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Datasheet | Radial, Disc | Multifuse®, MF-R | Bulk | Active | Polymeric | 30V | 1.1 A | 2.2 A | 40 A | 6.6 s | 100 mOhms | 270 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.350" Dia x 0.118" T (8.90mm x 3.00mm) | 0.551" (14.00mm) | - | 0.201" (5.10mm) |
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MF-R030-2-17PTC RESETTABLE 0.3A 60V RADIAL L |
9,695 | - |
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Datasheet | Radial, Disc | Multifuse®, MF-R | Tape & Reel (TR) | Active | Polymeric | 60V | 300 mA | 600 mA | 40 A | 3 s | 760 mOhms | 2.1 Ohms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.291" Dia x 0.122" T (7.40mm x 3.10mm) | 0.528" (13.40mm) | - | 0.201" (5.10mm) |
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MF-MSMF300X-2PTC RESETTABLE 3A 6V SMD 1812 |
3,668 | - |
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Datasheet | 1812 (4532 Metric), Concave | Multifuse®, MF-MSMF | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 3 A | 5 A | 100 A | 5 s | 10 mOhms | 40 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.181" L x 0.128" W (4.60mm x 3.24mm) | - | 0.063" (1.60mm) | - |
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MF-R010-2-17PTC RESETTABLE 0.1A 60V RADIAL L |
4,635 | - |
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Datasheet | Radial, Disc | Multifuse®, MF-R | Tape & Reel (TR) | Active | Polymeric | 60V | 100 mA | 200 mA | 40 A | 4 s | 2.5 Ohms | 7.5 Ohms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.291" Dia x 0.122" T (7.40mm x 3.10mm) | 0.500" (12.70mm) | - | 0.201" (5.10mm) |
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MF-RX090/72-0PTC RESET FUSE 72V 900MA RADIAL |
5,053 | - |
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Datasheet | Radial, Disc | Multifuse®, MF-RX/72 | Bulk | Active | Polymeric | 72V | 900 mA | 1.8 A | 40 A | 7.2 s | 140 mOhms | 470 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.461" Dia x 0.122" T (11.70mm x 3.10mm) | 0.657" (16.70mm) | - | 0.201" (5.10mm) |
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MF-R025-AP-17PTC RESETTABLE 0.25A 60V RADIAL |
3,683 | - |
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Datasheet | Radial, Disc | Multifuse®, MF-R | Tape & Box (TB) | Active | Polymeric | 60V | 250 mA | 500 mA | 40 A | 2.5 s | 1 Ohms | 3 Ohms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.291" Dia x 0.122" T (7.40mm x 3.10mm) | 0.500" (12.70mm) | - | 0.201" (5.10mm) |
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MF-RX040/72-APPTC RESET FUSE 72V 400MA RADIAL |
2,054 | - |
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Datasheet | Radial, Disc | MF-RX/72 | Tape & Box (TB) | Active | - | 72V | 400 mA | 800 mA | 40 A | 3.9 s | - | - | - | - | - | - | - | Through Hole | 0.291" Dia x 0.122" W (7.40mm x 3.10mm) | - | - | 0.201" (5.10mm) |
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MF-RX065/72-APPTC RESET FUSE 72V 650MA RADIAL |
5,777 | - |
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Datasheet | Radial, Disc | MF-RX/72 | Tape & Box (TB) | Active | - | 72V | 650 mA | 1.3 A | 40 A | 5.3 s | - | - | - | - | - | - | - | Through Hole | 0.382" Dia x 0.122" W (9.70mm x 3.10mm) | 0.598" (15.20mm) | - | 0.201" (5.10mm) |
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MF-RX075/72-APPTC RESET FUSE 72V 750MA RADIAL |
4,725 | - |
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Datasheet | Radial, Disc | MF-RX/72 | Tape & Box (TB) | Active | - | 72V | 750 mA | 1.5 A | 40 A | 6.3 s | - | - | - | - | - | - | - | Through Hole | 0.409" Dia x 0.122" W (10.40mm x 3.10mm) | 0.630" (16.00mm) | - | 0.201" (5.10mm) |
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.
