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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72R025XUPTC RESET FUSE 72V 250MA RADIAL |
8,003 |
|
Datasheet | Radial, Disc | POLY-FUSE®, 72R | Bulk | Obsolete | Polymeric | 72V | 250 mA | 500 mA | 40 A | 2.5 s | 1.25 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) |
|
72R030XUPTC RESET FUSE 72V 300MA RADIAL |
4,255 |
|
Datasheet | Radial, Disc | POLY-FUSE®, 72R | Bulk | Obsolete | Polymeric | 72V | 300 mA | 600 mA | 40 A | 3 s | 880 mOhms | 2.1 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) |
|
72R040XUPTC RESET FUSE 72V 400MA RADIAL |
3,265 |
|
Datasheet | Radial, Disc | POLY-FUSE®, 72R | Bulk | Obsolete | 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) |
|
72R050XUPTC RESET FUSE 72V 500MA RADIAL |
9,559 |
|
Datasheet | Radial, Disc | POLY-FUSE®, 72R | Bulk | Obsolete | Polymeric | 72V | 500 mA | 1 A | 40 A | 4 s | 500 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) |
|
72R065XUPTC RESET FUSE 72V 650MA RADIAL |
4,000 |
|
Datasheet | Radial, Disc | POLY-FUSE®, 72R | Bulk | Obsolete | Polymeric | 72V | 650 mA | 1.3 A | 40 A | 5.3 s | 310 mOhms | 720 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.370" Dia x 0.122" T (9.40mm x 3.10mm) | 0.571" (14.50mm) | - | 0.201" (5.10mm) |
|
72R075XUPTC RESET FUSE 72V 750MA RADIAL |
5,324 |
|
Datasheet | Radial, Disc | POLY-FUSE®, 72R | Bulk | Obsolete | Polymeric | 72V | 750 mA | 1.5 A | 40 A | 6.3 s | 250 mOhms | 600 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.402" Dia x 0.122" T (10.20mm x 3.10mm) | 0.598" (15.20mm) | - | 0.201" (5.10mm) |
|
72R090XUPTC RESET FUSE 72V 900MA RADIAL |
4,620 |
|
Datasheet | Radial, Disc | POLY-FUSE®, 72R | Bulk | Obsolete | Polymeric | 72V | 900 mA | 1.8 A | 40 A | 7.2 s | 200 mOhms | 470 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.441" Dia x 0.122" T (11.20mm x 3.10mm) | 0.622" (15.80mm) | - | 0.201" (5.10mm) |
|
72R185XFPTC RESET FUSE 72V 1.85A RADIAL |
5,128 |
|
Datasheet | Radial, Disc | POLY-FUSE®, 72R | Bulk | Obsolete | Polymeric | 72V | 1.85 A | 3.7 A | 40 A | 12.6 s | 80 mOhms | 190 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.660" Dia x 0.122" T (16.76mm x 3.10mm) | 0.906" (23.00mm) | - | 0.201" (5.10mm) |
|
72R300XFPTC RESET FUSE 72V 3A RADIAL |
9,782 |
|
Datasheet | Radial, Disc | POLY-FUSE®, 72R | Bulk | Obsolete | Polymeric | 72V | 3 A | 6 A | 40 A | 19.8 s | 40 mOhms | 100 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.910" Dia x 0.122" T (23.11mm x 3.10mm) | 1.154" (29.30mm) | - | 0.402" (10.20mm) |
|
AHRF550SPTC RESET FUSE 16V 5.5A RADIAL |
7,528 |
|
Datasheet | Radial, Disc | PolySwitch®, AHRF | Bag | Active | Polymeric | 16V | 5.5 A | 10 A | 100 A | 6 s | 13 mOhms | 37 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.441" L x 0.118" W (11.20mm x 3.00mm) | 0.744" (18.90mm) | - | 0.200" (5.08mm) |
|
LR4-1300FPTC RESET FUSE 20V 13A STRAP |
6,292 |
|
Datasheet | Strap | PolySwitch®, LR4 | Bag | Active | Polymeric | 20V | 13 A | 21.2 A | 100 A | 10 s | 3.5 mOhms | 9 mOhms | - | -40°C ~ 85°C | - | - | - | User Defined | 2.520" L x 0.382" W (64.00mm x 9.70mm) | - | - | - |
|
LR4-190XFPTC RESET FUSE 15V 1.9A STRAP |
6,877 |
|
Datasheet | Strap | PolySwitch®, LR4 | Bag | Active | Polymeric | 15V | 1.9 A | 3.9 A | 100 A | 5 s | 39 mOhms | 102 mOhms | - | -40°C ~ 85°C | - | - | - | User Defined | 0.648" L x 0.283" W (16.45mm x 7.20mm) | - | 0.039" (1.00mm) | - |
|
LR4-550RAFPTC RESET FUSE 20V 5.5A STRAP |
5,509 |
|
Datasheet | Strap | PolySwitch®, LR4 | Bag | Active | Polymeric | 20V | 5.5 A | 10.5 A | 100 A | 5 s | 9 mOhms | 22 mOhms | - | -40°C ~ 85°C | - | - | - | User Defined | - | - | - | - |
|
TRF250-180-0.125POLYSWITCH PTC RESET 0.180A T/H |
4,914 |
|
Datasheet | Radial, Disc | PolySwitch® | Bag | Active | - | 100V | 180 mA | 650 mA | 10 A | 2 s | - | - | - | - | - | - | - | Through Hole | 0.350" Dia x 0.150" W (8.89mm x 3.81mm) | 0.472" (12.00mm) | - | 0.200" (5.08mm) |
|
TRF250-183S-0.110PTC RESET FUSE 100V 183MA RADIAL |
6,046 |
|
Datasheet | Radial, Disc | PolySwitch®, TRF250 | Bag | Active | Polymeric | 100V (250V Int) | 183 mA | 685 mA | 10 A | 1.8 s | 800 mOhms | 3.4 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.295" Dia x 0.150" T (7.50mm x 3.80mm) | 0.374" (9.50mm) | - | 0.200" (5.08mm) |
|
250R080TUPTC RESET FUSE 60V 80MA RADIAL |
5,485 |
|
Datasheet | Radial, Disc | POLY-FUSE®, 250R | Bulk | Obsolete | Polymeric | 60V (250V Int) | 80 mA | 160 mA | 3 A | 4 s | 15 Ohms | 33 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.228" Dia x 0.181" T (5.80mm x 4.60mm) | 0.390" (9.90mm) | - | 0.201" (5.10mm) |
|
MF-R015/600-0PTC RESET FUSE 250V 150MA RADIAL |
7,290 |
|
Datasheet | Radial, Box | Multifuse®, MF-R/600 | Bulk | Obsolete | Polymeric | 250V (600V Int) | 150 mA | 300 mA | 3 A | 5 s | 6 Ohms | 22 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.531" L x 0.236" W (13.50mm x 6.00mm) | 0.496" (12.60mm) | - | 0.197" (5.00mm) |
|
MF-R016/600-0PTC RESET FUSE 250V 160MA RADIAL |
9,995 |
|
Datasheet | Radial, Box | Multifuse®, MF-R/600 | Bulk | Obsolete | Polymeric | 250V (600V Int) | 160 mA | 320 mA | 3 A | 7 s | 4 Ohms | 18 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.630" L x 0.236" W (16.00mm x 6.00mm) | 0.496" (12.60mm) | - | 0.197" (5.00mm) |
|
|
YS5876PTFPTC RESET FUSE 240V 100MA RADIAL |
2,107 |
|
Datasheet | Radial, Disc | PTF | Bulk | Active | Ceramic | 240V | 100 mA | 210 mA | - | - | - | - | 50 Ohms | 10°C ~ 55°C | - | - | - | Through Hole | 0.650" Dia x 0.272" T (16.50mm x 6.90mm) | 0.650" (16.50mm) | - | 0.331" (8.40mm) |
|
MXP190BBPTC RESET FUSE 6V 1.9A STRAP |
2,549 |
|
Datasheet | Strap | PolySwitch®, MXP | Bag | Obsolete | Polymeric | 6V | 1.9 A | 4.9 A | 50 A | 2 s | 7 mOhms | 24 mOhms | - | - | - | - | - | User Defined | 0.394" L x 0.122" W (10.00mm x 3.11mm) | - | 0.043" (1.10mm) | - |
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.
