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0755-82798135PTC Resettable Fuses
PTC Resettable Fuses
PTC Resettable Fuses are circuit protection components used to protect electronic systems from overcurrent, short-circuit and fault conditions. Unlike one-time fuses, PTC resettable fuses increase resistance during a fault and can return to a low-resistance state after the fault is removed and the device cools down.
This category includes polymer PTC resettable fuses, PPTC fuses, radial leaded PTC fuses, surface-mount PTC fuses and related overcurrent protection components. These devices are commonly selected based on hold current, trip current, rated voltage, resistance, response time, package type, operating temperature and application requirements.
TomatoElec supplies original PTC Resettable Fuses from recognized manufacturers such as Littelfuse, Bourns, Eaton, Bel Fuse, TE Connectivity, Murata, TDK, Panasonic and other major brands. As an in-stock electronic components supplier and independent distributor, TomatoElec provides inventory support, original component sourcing and BOM sourcing services for global customers.
| 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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TRF250-183USPTC RESET FUSE 100V 183MA RADIAL |
240 | - |
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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 | 0.256" Dia x 0.118" T (6.50mm x 3.00mm) | 0.256" (6.50mm) | - | 0.197" (5.00mm) |
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0ZRN0700FF1APTC RESET FUSE 16V 7A RADIAL |
60 | - |
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Datasheet |
Radial, Disc | 0ZRN | Bulk | Active | Polymeric | 16V | 7 A | 13 A | 100 A | 7 s | 10 mOhms | 25 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.551" L x 0.118" W (14.00mm x 3.00mm) | 0.862" (21.90mm) | - | 0.201" (5.10mm) |
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ASMD125F-2PTC RESET FUSE 16V 1.04A 2SMD |
820 | - |
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Datasheet |
2-SMD | PolySwitch®, ASMD | Tape & Reel (TR) | Active | Polymeric | 16V | 1.04 A | 2.46 A | 40 A | 20 s | 57 mOhms | 250 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.118" (3.00mm) | - |
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TRF250-120T-B-0.5PTC RESET FUSE 60V 120MA RADIAL |
450 | - |
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Datasheet |
Radial, Disc | PolySwitch®, TRF250 | Bag | Active | Polymeric | 60V (250V Int) | 120 mA | 240 mA | 3 A | 1.2 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) |
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MF-R300-APPTC RESET FUSE 30V 3A RADIAL |
1,798 | - |
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Datasheet |
Radial, Disc | Multifuse®, MF-R | Cut Tape (CT) | Active | Polymeric | 30V | 3 A | 6 A | 40 A | 10.8 s | 20 mOhms | 80 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.472" L x 0.118" W (12.00mm x 3.00mm) | 0.720" (18.30mm) | - | 0.201" (5.10mm) |
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CMF-RL25U-15-0PTC RESET FUSE 220V 60MA RADIAL |
372 | - |
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Datasheet |
Radial, Disc | CMF-RL | Bulk | Active | Ceramic | 220V (600V Int) | 60 mA | 150 mA | 900 mA | 250 ms | - | - | 25 Ohms | -40°C ~ 125°C | - | - | - | Through Hole | 0.205" L x 0.138" W (5.20mm x 3.50mm) | 0.205" (5.20mm) | - | 0.197" (5.00mm) |
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0ZRN0100FF2DPTC RESET FUSE 30V 1A RADIAL |
206 | - |
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Datasheet |
Radial, Disc | 0ZRN | Tape & Reel (TR) | Active | Polymeric | 30V | 1 A | 1.8 A | 40 A | 5.2 s | 180 mOhms | 430 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.382" Dia x 0.118" T (9.70mm x 3.00mm) | 0.535" (13.60mm) | - | 0.201" (5.10mm) |
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0ZRN0050FF2DPTC RESET FUSE 30V 500MA RADIAL |
38 | - |
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Datasheet |
Radial, Disc | 0ZRN | Tape & Reel (TR) | Active | Polymeric | 30V | 500 mA | 900 mA | 40 A | 2.5 s | 480 mOhms | 1.1 Ohms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.291" Dia x 0.118" T (7.40mm x 3.00mm) | 0.500" (12.70mm) | - | 0.201" (5.10mm) |
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ASMD200F-2PTC RESET FUSE 16V 1.73A 2SMD |
520 | - |
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Datasheet |
2-SMD | PolySwitch®, ASMD | Tape & Reel (TR) | Active | Polymeric | 16V | 1.73 A | 3.93 A | 40 A | 30 s | 50 mOhms | 120 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.343" L x 0.250" W (8.70mm x 6.36mm) | - | 0.118" (3.00mm) | - |
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PICOASMDC075S-2PPTC-MINI-PSW |
245 | - |
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Datasheet |
0805 (2012 Metric), Concave | PolySwitch® picoASMDC | Tape & Reel (TR) | Active | Polymeric | 6V | 750 mA | 1.5 A | 40 A | 200 ms | 100 mOhms | 350 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.083" L x 0.055" W (2.10mm x 1.40mm) | - | 0.037" (0.93mm) | - |
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TRF250-120UPTC RESET FUSE 60V 120MA RADIAL |
990 | - |
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Datasheet |
Radial, Disc | PolySwitch®, TRF250 | Bag | Active | Polymeric | 60V (250V Int) | 120 mA | 240 mA | 3 A | 1 s | 6 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) |
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AGRF700PTC RESET FUSE 16V 7A RADIAL |
281 | - |
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Datasheet |
Radial, Disc | PolySwitch®, AGRF | Bag | Active | Polymeric | 16V | 7 A | 13.2 A | 100 A | 4 s | 6.6 mOhms | 20 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.441" L x 0.118" W (11.20mm x 3.00mm) | 0.827" (21.00mm) | - | 0.199" (5.05mm) |
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PTR016V1300-BKPTC RESET FUSE 16V 13A RADIAL |
70 | - |
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Datasheet |
Radial, Disc | PTR016V | Bulk | Active | Polymeric | 16V | 13 A | 22.1 A | 100 A | 8.5 s | 2 mOhms | 8 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.850" L x 0.122" W (21.60mm x 3.10mm) | 1.142" (29.00mm) | - | 0.394" (10.00mm) |
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AHRL400PTC RESET FUSE 4A 16V RAD |
438 | - |
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Datasheet |
Radial, Disc | PolySwitch®, AHRL | Bulk | Active | Polymeric | 16V | 4 A | 8 A | 50 A | 5 s | 16 mOhms | 28 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.331" L x 0.118" W (8.40mm x 3.00mm) | 0.528" (13.40mm) | - | 0.199" (5.05mm) |
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MF-RHT070-2PTC RESET FUSE 16V 700MA RADIAL |
39 | - |
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Datasheet |
Radial, Disc | Multifuse®, MF-RHT | Tape & Reel (TR) | Active | Polymeric | 16V | 700 mA | 1.4 A | 40 A | 4 s | 300 mOhms | 800 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.270" L x 0.118" W (6.86mm x 3.00mm) | 0.425" (10.80mm) | - | 0.114" (2.90mm) |
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0ZRM0100FF2BPTC RESET FUSE 120V 1A RADIAL |
322 | - |
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Datasheet |
Radial, Disc | 0ZRM | Tape & Reel (TR) | Active | Polymeric | 120V | 1 A | 2 A | 10 A | 15 s | 180 mOhms | 470 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.453" L x 0.161" W (11.50mm x 4.10mm) | 0.791" (20.10mm) | - | 0.201" (5.10mm) |
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MF-RHT450-2PTC RESET FUSE 16V 4.5A RADIAL |
52 | - |
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Datasheet |
Radial, Disc | Multifuse®, MF-RHT | Tape & Reel (TR) | Active | Polymeric | 16V | 4.5 A | 7.8 A | 100 A | 3 s | 22 mOhms | 54 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.409" L x 0.118" W (10.40mm x 3.00mm) | 0.614" (15.60mm) | - | 0.114" (2.90mm) |
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MF-RHT300-2PTC RESET FUSE 16V 3A RADIAL |
40 | - |
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Datasheet |
Radial, Disc | Multifuse®, MF-RHT | Tape & Reel (TR) | Active | Polymeric | 16V | 3 A | 6 A | 100 A | 5 s | 33 mOhms | 79 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.346" L x 0.118" W (8.80mm x 3.00mm) | 0.543" (13.80mm) | - | 0.201" (5.10mm) |
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RHEF650PTC RESET FUSE 16V 6.5A RADIAL |
500 | - |
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Datasheet |
Radial, Disc | PolySwitch®, RHEF | Bag | Active | Polymeric | 16V | 6.5 A | 12 A | 100 A | 5.5 s | 11 mOhms | 26 mOhms | - | -40°C ~ 125°C | - | - | - | Through Hole | 0.500" L x 0.118" W (12.70mm x 3.00mm) | 0.874" (22.20mm) | - | 0.199" (5.05mm) |
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0ZRM0110FF2BPTC RESET FUSE 120V 1.1A RADIAL |
318 | - |
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Datasheet |
Radial, Disc | 0ZRM | Tape & Reel (TR) | Active | Polymeric | 120V | 1.1 A | 2.2 A | 8 A | 8.2 s | 150 mOhms | 380 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.524" Dia x 0.161" T (13.30mm x 4.10mm) | 0.720" (18.30mm) | - | 0.201" (5.10mm) |

