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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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06R155BPRPTC RESET FUSE 6V 1.55A RADIAL |
1,849 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, USBR | Cut Tape (CT) | Active | Polymeric | 6V | 1.55 A | 2.7 A | 40 A | 2.2 s | 40 mOhms | 100 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.272" Dia x 0.118" T (6.90mm x 3.00mm) | 0.449" (11.40mm) | - | 0.201" (5.10mm) |
|
72R030XPRPTC RESET FUSE 72V 300MA RADIAL |
1,506 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 72R | Cut Tape (CT) | Active | 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) |
|
72R050XPRPTC RESET FUSE 72V 500MA RADIAL |
7,652 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 72R | Cut Tape (CT) | Active | 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) |
|
MF-RG300-0PTC RESET FUSE 16V 3A RADIAL |
2,558 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RG | Bulk | Active | Polymeric | 16V | 3 A | 5.1 A | 100 A | 1 s | 38 mOhms | 97.5 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.280" L x 0.118" W (7.10mm x 3.00mm) | 0.433" (11.00mm) | - | 0.201" (5.10mm) |
|
MF-R400-0-14PTC RESETTABLE 4.0A 30V RADIAL L |
1,805 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-R | Bulk | Active | Polymeric | 30V | 4 A | 8 A | 40 A | 12.7 s | 10 mOhms | 50 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.567" L x 0.118" W (14.40mm x 3.00mm) | 0.976" (24.80mm) | - | 0.201" (5.10mm) |
|
MF-RG900-0PTC RESET FUSE 16V 9A RADIAL |
26,575 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RG | Bulk | Active | Polymeric | 16V | 9 A | 15.3 A | 100 A | 12 s | 4 mOhms | 15 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.551" L x 0.118" W (14.00mm x 3.00mm) | 0.819" (20.80mm) | - | 0.201" (5.10mm) |
|
RHEF070-2PTC RESET FUSE 30V 700MA RADIAL |
6,563 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RHEF | Tape & Reel (TR) | Active | Polymeric | 30V | 700 mA | 1.4 A | 40 A | 3.2 s | 300 mOhms | 800 mOhms | - | -40°C ~ 125°C | - | - | - | Through Hole | 0.272" L x 0.118" W (6.90mm x 3.00mm) | 0.425" (10.80mm) | - | 0.199" (5.05mm) |
|
RXEF110K-2PTC RESET FUSE 72V 1.1A RADIAL |
2,443 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RXEF | Tape & Reel (TR) | Active | Polymeric | 72V | 1.1 A | 2.2 A | 40 A | 8.2 s | 150 mOhms | 380 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.504" Dia x 0.118" T (12.80mm x 3.00mm) | 0.689" (17.50mm) | - | 0.199" (5.05mm) |
|
RXEF110K-APPTC RESET FUSE 72V 1.1A RADIAL |
25,423 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RXEF | Cut Tape (CT) | Active | Polymeric | 72V | 1.1 A | 2.2 A | 40 A | 8.2 s | 150 mOhms | 380 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.504" Dia x 0.118" T (12.80mm x 3.00mm) | 0.689" (17.50mm) | - | 0.199" (5.05mm) |
|
RGEF400-2PTC RESET FUSE 16V 4A RADIAL |
7,330 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RGEF | Tape & Reel (TR) | Active | Polymeric | 16V | 4 A | 6.8 A | 100 A | 1.7 s | 21 mOhms | 60 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.331" L x 0.098" W (8.40mm x 2.50mm) | 0.504" (12.80mm) | - | 0.199" (5.05mm) |
|
|
PRG21BC0R6MM1RAPTC RESET FUSE 6V 420MA 0805 |
6,626 | - |
|
Datasheet |
0805 (2012 Metric) | POSISTOR®, PRG | Tape & Reel (TR) | Active | Ceramic | 6V | 420 mA | 920 mA | 10 A | - | - | - | 600 mOhms | -20°C ~ 85°C | - | - | - | Surface Mount | 0.079" L x 0.049" W (2.00mm x 1.25mm) | - | 0.043" (1.10mm) | - |
|
TRF250-120T-R2-B-0.5PTC RESET FUSE 60V 120MA RADIAL |
5,716 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, TRF250 | Bag | Active | Polymeric | 60V (250V Int) | 120 mA | 240 mA | 3 A | 750 ms | 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) | - | 0.197" (5.00mm) |
|
PTSLR12106V200PTC RESET FUSE 6V 2A 1210 |
2,385 | - |
|
Datasheet |
1210 (3225 Metric), Concave | PTSLR1210 | Tape & Reel (TR) | Active | Polymeric | 6V | 2 A | 4 A | 50 A | 3 s | 5 mOhms | 24 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.101" W (3.22mm x 2.58mm) | - | 0.028" (0.70mm) | - |
|
0ZRE0025FF2BPTC RESET FUSE 240V 250MA RADIAL |
2,273 | - |
|
Datasheet |
Radial, Disc | 0ZRE | Tape & Reel (TR) | Active | Polymeric | 240V | 250 mA | 560 mA | 6 A | 18.5 s | 1.3 Ohms | 3.8 Ohms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.378" L x 0.150" W (9.60mm x 3.80mm) | 0.685" (17.40mm) | - | 0.201" (5.10mm) |
|
0ZRM0065FF1EPTC RESET FUSE 120V 650MA RADIAL |
1,680 | - |
|
Datasheet |
Radial, Disc | 0ZRM | Box | Active | Polymeric | 120V | 650 mA | 1.3 A | 5 A | 5.7 s | 310 mOhms | 720 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.382" Dia x 0.150" T (9.70mm x 3.80mm) | 0.587" (14.90mm) | - | 0.201" (5.10mm) |
|
MICROASMD050F-2PTC RESET FUSE 13.2V 500MA 1210 |
1,640 | - |
|
Datasheet |
1210 (3225 Metric), Concave | PolySwitch®, microASMD | Bulk | Active | Polymeric | 13.2V | 500 mA | 1 A | 40 A | 50 ms | 250 mOhms | 900 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.024" (0.62mm) | - |
|
|
0ZRN0200FF1EPTC RESET FUSE 16V 2A RADIAL |
35,869 | - |
|
Datasheet |
Radial, Disc | 0ZRN | Bulk | Active | Polymeric | 16V | 2 A | 3.8 A | 100 A | 3 s | 45 mOhms | 110 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.370" Dia x 0.118" T (9.40mm x 3.00mm) | 0.567" (14.40mm) | - | 0.201" (5.10mm) |
|
|
RKEF250KPTC RESET FUSE 60V 2.5A RADIAL |
8,783 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RKEF | Bag | Active | Polymeric | 60V | 2.5 A | 5 A | 40 A | 15.6 s | 40 mOhms | 140 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.551" L x 0.118" W (14.00mm x 3.00mm) | 0.902" (22.90mm) | - | 0.199" (5.05mm) |
|
|
60R040XPRPTC RESET FUSE 60V 400MA RADIAL |
5,103 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 60R | Cut Tape (CT) | Active | Polymeric | 60V | 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) |
|
|
0ZRM0050FF2CPTC RESET FUSE 120V 500MA RADIAL |
2,490 | - |
|
Datasheet |
Radial, Disc | 0ZRM | Tape & Reel (TR) | Active | Polymeric | 120V | 500 mA | 1 A | 3 A | 6 s | 500 mOhms | 1.17 Ohms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.362" Dia x 0.150" T (9.20mm x 3.80mm) | 0.587" (14.90mm) | - | 0.201" (5.10mm) |

