PTC Resettable Fuses
Browse available PTC Resettable Fuses part numbers with manufacturer references, stock information, pricing, datasheets and key specifications. Use the table below to compare options for your project.
For BOM, shortage or hard-to-find requirements, send your part number and quantity to Winsun (HK) Electronics for availability, lead-time and quotation support.
| 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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PFRA.030.2PTC RESET FUSE 60V 300MA RADIAL |
5,380 | - |
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Datasheet | Radial, Disc | PFRA | Tape & Reel (TR) | Active | 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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PFRA.025.2PTC RESET FUSE 60V 250MA RADIAL |
7,609 | - |
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Datasheet | Radial, Disc | PFRA | Tape & Reel (TR) | Active | Polymeric | 60V | 250 mA | 500 mA | 40 A | 2.5 s | 1 Ohms | 3 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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PFRA.020.2PTC RESET FUSE 60V 200MA RADIAL |
3,907 | - |
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Datasheet | Radial, Disc | PFRA | Tape & Reel (TR) | Active | 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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PFRA.010.2PTC RESET FUSE 60V 100MA RADIAL |
2,706 | - |
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Datasheet | Radial, Disc | PFRA | Tape & Reel (TR) | Active | 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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PFRA.040.2PTC RESET FUSE 60V 400MA RADIAL |
7,813 | - |
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Datasheet | Radial, Disc | PFRA | Tape & Reel (TR) | Active | 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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PFRA.075.2PTC RESET FUSE 60V 750MA RADIAL |
4,944 | - |
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Datasheet | Radial, Disc | PFRA | Tape & Reel (TR) | Active | Polymeric | 60V | 750 mA | 1.5 A | 40 A | 6.3 s | 180 mOhms | 600 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.409" Dia x 0.122" T (10.40mm x 3.10mm) | 0.630" (16.00mm) | - | 0.201" (5.10mm) |
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PFRA.065.2PTC RESET FUSE 60V 650MA RADIAL |
7,285 | - |
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Datasheet | Radial, Disc | PFRA | Tape & Reel (TR) | Active | Polymeric | 60V | 650 mA | 1.3 A | 40 A | 5.3 s | 270 mOhms | 720 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.382" Dia x 0.122" T (9.70mm x 3.10mm) | 0.598" (15.20mm) | - | 0.201" (5.10mm) |
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PFRA.050.2PTC RESET FUSE 60V 500MA RADIAL |
3,591 | - |
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Datasheet | Radial, Disc | PFRA | Tape & Reel (TR) | Active | 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) |
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400CC1206LR-C-2PTC RESET FUSE 21V 4A 1206 |
2,103 | - |
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Datasheet | 1206 (3216 Metric) | PolySwitch®, LoRho | Tape & Reel (TR) | Obsolete | Polymeric | 21V | 4 A | - | - | - | 4 mOhms | 10 mOhms | - | -20°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.063" W (3.22mm x 1.61mm) | - | 0.032" (0.80mm) | - |
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450CC1210LR-C-2PTC RESET FUSE 21V 4.5A 1210 |
5,742 | - |
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Datasheet | 1210 (3225 Metric), Concave | PolySwitch®, LoRho | Tape & Reel (TR) | Obsolete | Polymeric | 21V | 4.5 A | - | - | - | 2 mOhms | 8 mOhms | - | -20°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.032" (0.80mm) | - |
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SMD0805P050TFAPTC RESET FUSE 6V 500MA 0805 |
4,401 | - |
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Datasheet | 0805 (2012 Metric), Concave | POLY-FUSE®, SMD0805 | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 500 mA | 1 A | 40 A | 100 ms | 150 mOhms | 850 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.083" L x 0.053" W (2.10mm x 1.35mm) | - | 0.039" (1.00mm) | - |
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RL4510-50-110-120-PTFPTC RESET FUSE 120V 110MA RADIAL |
2,778 | - |
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Datasheet | Radial, Disc | PTF | Bulk | Obsolete | Ceramic | 120V | 110 mA | 170 mA | - | - | - | - | 50 Ohms | - | - | - | - | Through Hole | 0.500" Dia x 0.201" T (12.70mm x 5.10mm) | 0.500" (12.70mm) | - | 0.331" (8.40mm) |
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RL5008-3.0-110-25-PTFPTC RESET FUSE 25V 500MA RADIAL |
6,690 | - |
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Datasheet | Radial, Disc | PTF | Bulk | Obsolete | Ceramic | 25V | 500 mA | 740 mA | - | - | - | - | 3 Ohms | - | - | - | - | Through Hole | 0.551" Dia x 0.181" T (14.00mm x 4.60mm) | 0.551" (14.00mm) | - | 0.331" (8.40mm) |
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RL4508-25-110-50-PTFPTC RESET FUSE 50V 160MA RADIAL |
7,115 | - |
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Datasheet | Radial, Disc | PTF | Bulk | Obsolete | Ceramic | 50V | 160 mA | 240 mA | - | - | - | - | 25 Ohms | - | - | - | - | Through Hole | 0.500" Dia x 0.181" T (12.70mm x 4.60mm) | 0.500" (12.70mm) | - | 0.331" (8.40mm) |
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MF-RX012/250-2-2PTC RESET FUSE 60V 120MA RADIAL |
5,506 | - |
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Datasheet | Radial, Disc | Multifuse®, MF-RX/250 | Tape & Reel (TR) | Active | 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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MICROASMDCH125F-2PPTC-MINI-PSW |
4,187 | - |
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Datasheet | 1210 (3225 Metric), Concave | PolySwitch®, microASMD | Tape & Reel (TR) | Active | Polymeric | 12V | 1.25 A | 3.75 A | 40 A | 1 s | 30 mOhms | 300 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.127" L x 0.101" W (3.22mm x 2.58mm) | - | 0.055" (1.40mm) | - |
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MF-PSHT010X-2PTC RESET FUSE 16V 100MA 0805 |
2,415 | - |
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Datasheet | 0805 (2012 Metric), Concave | Multifuse®, MF-PSHT | Tape & Reel (TR) | Obsolete | Polymeric | 16V | 100 mA | 600 mA | 40 A | 1.5 s | 1 Ohms | 12 Ohms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Surface Mount | 0.085" L x 0.053" W (2.15mm x 1.35mm) | - | 0.032" (0.80mm) | - |
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TRF600-150-B-0.5-2PTC RESET FUSE 250V 150MA RADIAL |
1,057 | - |
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Datasheet | Radial, Disc | PolySwitch®, TRF600 | Tape & Reel (TR) | Active | Polymeric | 250V (600V Int) | 150 mA | 300 mA | 40 A | 4 s | 6 Ohms | 17 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.354" L x 0.181" W (9.00mm x 4.60mm) | 0.492" (12.50mm) | - | 0.197" (5.00mm) |
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0402L050SLYRPTC RESET FUSE 6V 500MA 0402 |
5,515 | - |
|
Datasheet | 0402 (1005 Metric), Concave | LoRho Surface Mount | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 500 mA | 1 A | 50 A | 100 ms | 40 mOhms | 400 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.039" L x 0.020" W (1.00mm x 0.50mm) | - | 0.024" (0.60mm) | - |
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0402L010SLYRPTC RESET FUSE 6V 100MA 0402 |
2,332 | - |
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Datasheet | 0402 (1005 Metric), Concave | LoRho Surface Mount | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 100 mA | 300 mA | 40 A | 1 s | 150 mOhms | 2 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.039" L x 0.020" W (1.00mm x 0.50mm) | - | 0.024" (0.60mm) | - |
PTC Resettable Fuses FAQ
Common questions about selecting, comparing and sourcing PTC Resettable Fuses components through Winsun (HK) Electronics.
What should I check when selecting PTC Resettable Fuses components?
Compare the manufacturer part number, electrical specifications, package, operating conditions and application requirements. The product datasheet should be used to confirm technical suitability.
Can Winsun help source specific PTC Resettable Fuses part numbers?
Yes. Send the exact part number, manufacturer and required quantity. Winsun (HK) Electronics can assist with availability checks, quotation support and sourcing options based on your requirement.
Do you support shortage, obsolete or hard-to-find PTC Resettable Fuses parts?
Yes. Our sourcing team can review shortage and obsolete-part requirements and help check available supply channels or possible alternatives when appropriate.
How do I request a quote for PTC Resettable Fuses components?
Submit an RFQ with the part number, manufacturer, quantity and target delivery requirement. Our sales team will review your request and follow up with current sourcing information.
