PTC Resettable Fuses
Review PTC Resettable Fuses Circuit Protection components in this filtered selection. Compare manufacturer information, availability, pricing, datasheets and key specifications to narrow down suitable parts for your application.
If the exact part or specification you need is not listed, send the manufacturer part number, target parameters and quantity to JIEXIN Electronics for sourcing 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
72R040XPRPTC RESET FUSE 72V 400MA RADIAL |
1,407 |
|
Datasheet | Radial, Disc | POLY-FUSE®, 72R | Cut Tape (CT) | Active | Polymeric | 72V | 400 mA | 800 mA | 40 A | 3.8 s | 550 mOhms | 1.29 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.299" Dia x 0.122" T (7.60mm x 3.10mm) | 0.532" (13.50mm) | - | 0.201" (5.10mm) |
|
TCF250-180TPTC RESET FUSE 60V 180MA SMD |
2,488 |
|
Datasheet | Nonstandard SMD | PolySwitch®, TCF250 | Bag | Active | Polymeric | 60V (250V Int) | 180 mA | 380 mA | 3 A | 3.4 s | 1.9 Ohms | 4.2 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.276" L x 0.276" W (7.00mm x 7.00mm) | - | 0.063" (1.60mm) | - |
|
|
TCF250-120T-RB-B-0.5PTC RESET FUSE 60V 120MA SMD |
2,210 |
|
Datasheet | Nonstandard SMD | PolySwitch®, TCF250 | Bag | Active | Polymeric | 60V (250V Int) | 120 mA | 240 mA | 3 A | 600 ms | 6.3 Ohms | 18 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.217" L x 0.217" W (5.50mm x 5.50mm) | - | 0.091" (2.30mm) | - |
|
|
TCF250-145-RB-B-0.5PTC RESET FUSE 60V 145MA SMD |
4,980 |
|
Datasheet | Nonstandard SMD | PolySwitch®, TCF250 | Bag | Active | Polymeric | 60V (250V Int) | 145 mA | 290 mA | 3 A | 2.5 s | 3 Ohms | 14 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.217" L x 0.217" W (5.50mm x 5.50mm) | - | 0.091" (2.30mm) | - |
|
|
TCF250-120T-RA-B-0.5PTC RESET FUSE 60V 120MA SMD |
2,500 |
|
Datasheet | Nonstandard SMD | PolySwitch®, TCF250 | Bag | Active | Polymeric | 60V (250V Int) | 120 mA | 240 mA | 3 A | 600 ms | 6.3 Ohms | 18 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.217" L x 0.217" W (5.50mm x 5.50mm) | - | 0.091" (2.30mm) | - |
|
TRF250-145US-B-0.5PTC RESET FUSE 60V 145MA RADIAL |
1,890 |
|
Datasheet | Radial, Disc | PolySwitch®, TRF250 | Bag | Active | Polymeric | 60V (250V Int) | 145 mA | 290 mA | 3 A | 4 s | 3.5 Ohms | 14 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.236" L x 0.150" W (6.00mm x 3.80mm) | 0.394" (10.00mm) | - | 0.197" (5.00mm) |
|
|
TCF250-120T-B-0.5PTC RESET FUSE 60V 120MA SMD |
1,216 |
|
Datasheet | Nonstandard SMD | PolySwitch®, TCF250 | Bag | Active | Polymeric | 60V (250V Int) | 120 mA | 240 mA | 3 A | 600 ms | 6.3 Ohms | 18 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.217" L x 0.217" W (5.50mm x 5.50mm) | - | 0.091" (2.30mm) | - |
|
TRF250-120T-RF-B-0.5PTC RESET FUSE 60V 120MA RADIAL |
6,560 |
|
Datasheet | Radial, Disc | PolySwitch®, TRF250 | Bag | Active | Polymeric | 60V (250V Int) | 120 mA | 240 mA | 3 A | 900 ms | 6 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) | - | 0.197" (5.00mm) |
|
TRF250-120UTPTC RESET FUSE 60V 120MA RADIAL |
1,960 |
|
Datasheet | Radial, Disc | PolySwitch®, TRF250 | Bag | Active | Polymeric | 60V (250V Int) | 120 mA | 240 mA | 3 A | 1.5 s | 7 Ohms | 16 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.236" L x 0.150" W (6.00mm x 3.80mm) | 0.394" (10.00mm) | - | 0.197" (5.00mm) |
|
TRF250-120S-B-0.5PTC RESET FUSE 60V 120MA RADIAL |
1,955 |
|
Datasheet | Radial, Disc | PolySwitch®, TRF250 | Bag | Active | Polymeric | 60V (250V Int) | 120 mA | 240 mA | 3 A | 2.5 s | 4 Ohms | 16 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.256" L x 0.181" W (6.50mm x 4.60mm) | 0.394" (10.00mm) | - | 0.197" (5.00mm) |
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.
