PTC Resettable Fuses
Explore PTC Resettable Fuses parts from multiple manufacturers, with model information, availability, datasheets and technical specifications for engineering and purchasing.
For parts that are not shown in the list, send the manufacturer part number, quantity or BOM to JIEXIN Electronics. Our team can assist with availability checks and quotation support.
| Photo | Mfr. Part # | Availability | 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-R900-0-99PTC RESET FUSE 30V 9A RADIAL |
8,005 |
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Datasheet | Radial, Disc | Multifuse®, MF-R | Bulk | Obsolete | Polymeric | 30V | 9 A | 18 A | 40 A | 20 s | 5 mOhms | 20 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-RX012/250-2-0PTC RESET FUSE 60V 120MA RADIAL |
4,491 |
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Datasheet | Radial, Disc | Multifuse®, MF-RX/250 | Bulk | Discontinued at Digi-Key | Polymeric | 60V (250V Int) | 120 mA | - | 3 A | - | 8 Ohms | 16 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.256" L x 0.181" W (6.50mm x 4.60mm) | 0.433" (11.00mm) | - | 0.201" (5.10mm) |
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MF-RX110-005PTC RESET FUSE 60V 1.1A RADIAL |
4,442 |
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Datasheet | Radial, Disc | Multifuse®, MF-RX | Bulk | Active | Polymeric | 60V | 1.1 A | 2.2 A | 40 A | 8.2 s | 150 mOhms | 380 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.427" L x 0.122" W (10.84mm x 3.10mm) | 0.662" (16.84mm) | - | 0.201" (5.10mm) |
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MF-RX135-0-99PTC RESET FUSE 60V 1.35A RADIAL |
6,737 |
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Datasheet | Radial, Disc | Multifuse®, MF-RX | Bulk | Obsolete | Polymeric | 60V | 1.35 A | 2.7 A | 40 A | 9.6 s | 120 mOhms | 300 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.483" L x 0.122" W (12.26mm x 3.10mm) | 0.718" (18.26mm) | - | 0.201" (5.10mm) |
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MF-RX135-0-H2PTC RESET FUSE 60V 1.35A RADIAL |
2,358 |
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Datasheet | Radial, Disc | Multifuse®, MF-RX | Bulk | Active | Polymeric | 60V | 1.35 A | 2.7 A | 40 A | 9.6 s | 120 mOhms | 300 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.483" L x 0.122" W (12.26mm x 3.10mm) | 0.718" (18.26mm) | - | 0.201" (5.10mm) |
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MF-RX160-0-99PTC RESET FUSE 60V 1.6A RADIAL |
5,582 |
|
Datasheet | Radial, Disc | Multifuse®, MF-RX | Bulk | Obsolete | Polymeric | 60V | 1.6 A | 3.2 A | 40 A | 11.4 s | 90 mOhms | 220 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.642" L x 0.122" W (16.30mm x 3.10mm) | 0.839" (21.30mm) | - | 0.201" (5.10mm) |
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MF-RX185-005PTC RESET FUSE 60V 1.85A RADIAL |
2,835 |
|
Datasheet | Radial, Disc | Multifuse®, MF-RX | Bulk | Active | Polymeric | 60V | 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-RX185-0-14PTC RESET FUSE 60V 1.85A RADIAL |
3,430 |
|
Datasheet | Radial, Disc | Multifuse®, MF-RX | Bulk | Obsolete | Polymeric | 60V | 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-RX185-0-99PTC RESET FUSE 60V 1.85A RADIAL |
6,646 |
|
Datasheet | Radial, Disc | Multifuse®, MF-RX | Bulk | Obsolete | Polymeric | 60V | 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-RX185-2PTC RESET FUSE 60V 1.85A RADIAL |
4,940 |
|
Datasheet | Radial, Disc | Multifuse®, MF-RX | Tape & Reel (TR) | Obsolete | Polymeric | 60V | 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-RX250-0-99PTC RESET FUSE 60V 2.5A RADIAL |
2,764 |
|
Datasheet | Radial, Disc | Multifuse®, MF-RX | Bulk | Obsolete | Polymeric | 60V | 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-RX300-005PTC RESET FUSE 60V 3A RADIAL |
4,999 |
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Datasheet | Radial, Disc | Multifuse®, MF-RX | Bulk | Active | Polymeric | 60V | 3 A | 6 A | 40 A | 19.8 s | 40 mOhms | 100 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.980" L x 0.122" W (24.90mm x 3.10mm) | 1.181" (30.00mm) | - | 0.402" (10.20mm) |
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MF-RX375-005PTC RESET FUSE 60V 3.75A RADIAL |
6,703 |
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Datasheet | Radial, Disc | Multifuse®, MF-RX | Bulk | Active | Polymeric | 60V | 3.75 A | 7.5 A | 40 A | 24 s | 30 mOhms | 80 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 1.118" L x 0.122" W (28.40mm x 3.10mm) | 1.319" (33.50mm) | - | 0.402" (10.20mm) |
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MF-RX375-0-99PTC RESET FUSE 60V 3.75A RADIAL |
8,520 |
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Datasheet | Radial, Disc | Multifuse®, MF-RX | Bulk | 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" L x 0.122" W (28.40mm x 3.10mm) | 1.319" (33.50mm) | - | 0.402" (10.20mm) |
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MF-R010-AP-99PTC RESET FUSE 60V 100MA RADIAL |
4,490 |
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Datasheet | Radial, Disc | Multifuse®, MF-R | Tape & Box (TB) | Obsolete | Polymeric | 60V | 100 mA | 200 mA | 40 A | 4 s | 2.5 Ohms | 7.5 Ohms | - | -40°C ~ 85°C | - | - | - | 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-R017-AP-99PTC RESET FUSE 60V 170MA RADIAL |
2,892 |
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Datasheet | Radial, Disc | Multifuse®, MF-R | Tape & Box (TB) | Obsolete | Polymeric | 60V | 170 mA | 340 mA | 40 A | 3 s | 2 Ohms | 8 Ohms | - | -40°C ~ 85°C | - | - | - | 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-R020-AP-99PTC RESET FUSE 60V 200MA RADIAL |
6,991 |
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Datasheet | Radial, Disc | Multifuse®, MF-R | Tape & Box (TB) | Obsolete | Polymeric | 60V | 200 mA | 400 mA | 40 A | 2.2 s | 1.5 Ohms | 4.4 Ohms | - | -40°C ~ 85°C | - | - | - | 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-R030-AP-99PTC RESET FUSE 60V 300MA RADIAL |
8,277 |
|
Datasheet | Radial, Disc | Multifuse®, MF-R | Tape & Box (TB) | Obsolete | Polymeric | 60V | 300 mA | 600 mA | 40 A | 3 s | 760 mOhms | 2.1 Ohms | - | -40°C ~ 85°C | - | - | - | 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-R040-AP-99PTC RESET FUSE 60V 400MA RADIAL |
2,412 |
|
Datasheet | Radial, Disc | Multifuse®, MF-R | Tape & Box (TB) | Obsolete | Polymeric | 60V | 400 mA | 800 mA | 40 A | 3.8 s | 520 mOhms | 1.29 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.291" Dia x 0.122" T (7.40mm x 3.10mm) | 0.539" (13.70mm) | - | 0.201" (5.10mm) |
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MF-R050-AP-99PTC RESET FUSE 60V 500MA RADIAL |
9,233 |
|
Datasheet | Radial, Disc | Multifuse®, MF-R | Tape & Box (TB) | Obsolete | Polymeric | 60V | 500 mA | 1 A | 40 A | 4 s | 410 mOhms | 1.17 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.311" Dia x 0.122" T (7.90mm x 3.10mm) | 0.539" (13.70mm) | - | 0.201" (5.10mm) |
Frequently Asked Questions
What are PTC Resettable Fuses components used for?
PTC Resettable Fuses components are used in a wide range of electronic equipment and systems. Their exact function depends on the device, circuit design and technical requirements of the application.
How do I choose the right PTC Resettable Fuses part?
Compare the manufacturer part number, key specifications, package type, operating conditions, availability and datasheet information. For replacement projects, always verify the critical electrical and mechanical parameters before selecting an alternative.
Can JIEXIN Electronics help source obsolete or hard-to-find PTC Resettable Fuses parts?
Yes. Send us the required manufacturer part number, quantity or BOM. Our sourcing team can help check stock availability, lead time, alternative sourcing options and quotation details.
How can I request pricing and availability?
Submit the part number, manufacturer and required quantity through our RFQ form. JIEXIN Electronics will review your request and provide available stock, pricing and sourcing information.
