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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
MINISMDC075F-2PTC RESET FUSE 13.2V 750MA 1812 |
34,734 | - |
|
Datasheet |
1812 (4532 Metric), Concave | PolySwitch®, miniSMD | Tape & Reel (TR) | Active | Polymeric | 13.2V | 750 mA | 1.5 A | 100 A | 200 ms | 110 mOhms | 450 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.179" L x 0.128" W (4.55mm x 3.24mm) | - | 0.024" (0.62mm) | - |
|
MF-USMF005-2PTC RESET FUSE 30V 50MA 1210 |
27,763 | - |
|
Datasheet |
1210 (3225 Metric), Concave | Multifuse®, MF-USMF | Tape & Reel (TR) | Active | Polymeric | 30V | 50 mA | 150 mA | 10 A | 1.5 s | 2.8 Ohms | 50 Ohms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.033" (0.85mm) | - |
|
MF-PSMF050X-2PTC RESET FUSE 6V 500MA 0805 |
9,795 | - |
|
Datasheet |
0805 (2012 Metric), Concave | Multifuse®, MF-PSMF | Tape & Reel (TR) | Active | Polymeric | 6V | 500 mA | 1 A | 40 A | 100 ms | 150 mOhms | 900 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.085" L x 0.053" W (2.15mm x 1.35mm) | - | 0.033" (0.85mm) | - |
|
MINISMDC050F-2PTC RESET FUSE 24V 500MA 1812 |
102,596 | - |
|
Datasheet |
1812 (4532 Metric), Concave | PolySwitch®, miniSMD | Tape & Reel (TR) | Active | Polymeric | 24V | 500 mA | 1 A | 100 A | 150 ms | 150 mOhms | 1 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.179" L x 0.128" W (4.55mm x 3.24mm) | - | 0.024" (0.62mm) | - |
|
0ZCG0260BF2BPTC RESET FUSE 16V 2.6A 1812 |
86,020 | - |
|
Datasheet |
1812 (4532 Metric), Concave | 0ZCG | Tape & Reel (TR) | Active | Polymeric | 16V | 2.6 A | 5 A | 100 A | 5 s | 15 mOhms | 50 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.179" L x 0.128" W (4.55mm x 3.24mm) | - | 0.061" (1.55mm) | - |
|
NANOSMDC020F-2PTC RESET FUSE 24V 200MA 1206 |
21,729 | - |
|
Datasheet |
1206 (3216 Metric), Concave | PolySwitch®, nanoSMDC020F | Tape & Reel (TR) | Active | Polymeric | 24V | 200 mA | 420 mA | 100 A | 0.1 s | 650 mOhms | 3.1 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.126" L x 0.063" W (3.20mm x 1.59mm) | - | 0.028" (0.70mm) | - |
|
MINISMDC014F-2PTC RESET FUSE 60V 140MA 1812 |
49,757 | - |
|
Datasheet |
1812 (4532 Metric), Concave | PolySwitch®, miniSMD | Tape & Reel (TR) | Active | Polymeric | 60V | 140 mA | 280 mA | 10 A | 8 ms | 1.5 Ohms | 6 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.179" L x 0.128" W (4.55mm x 3.24mm) | - | 0.035" (0.89mm) | - |
|
NANOSMDC010F-2PTC RESET FUSE 60V 100MA 1206 |
33,016 | - |
|
Datasheet |
1206 (3216 Metric), Concave | nanoSMD | Tape & Reel (TR) | Active | Polymeric | 60V | 100 mA | 250 mA | 10 A | 1 s | - | - | - | - | - | - | - | Surface Mount | 0.126" L x 0.063" W (3.20mm x 1.59mm) | - | 0.039" (1.00mm) | - |
|
NANOSMDC016F-2PTC RESET FUSE 48V 160MA 1206 |
37,252 | - |
|
Datasheet |
1206 (3216 Metric), Concave | PolySwitch®, nanoSMD | Tape & Reel (TR) | Active | Polymeric | 48V | 160 mA | 450 mA | 10 A | 300 ms | 1.1 Ohms | - | - | - | - | - | - | Surface Mount | 0.126" L x 0.063" W (3.20mm x 1.60mm) | - | 0.039" (1.00mm) | - |
|
MINISMDC020F-2PTC RESET FUSE 30V 200MA 1812 |
30,478 | - |
|
Datasheet |
1812 (4532 Metric), Concave | PolySwitch®, miniSMD | Tape & Reel (TR) | Active | Polymeric | 30V | 200 mA | 400 mA | 10 A | 20 ms | 600 mOhms | 3.3 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.179" L x 0.128" W (4.55mm x 3.24mm) | - | 0.035" (0.89mm) | - |
|
MF-SM100-2PTC RESET FUSE 30V 1.1A 2SMD |
7,849 | - |
|
Datasheet |
2-SMD | Multifuse®, MF-SM | Tape & Reel (TR) | Active | Polymeric | 30V | 1.1 A | 2.2 A | 80 A | 500 ms | 120 mOhms | 480 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.287" L x 0.214" W (7.31mm x 5.44mm) | - | 0.118" (3.00mm) | - |
|
|
MF-SM050-2PTC RESET FUSE 60V 500MA 2SMD |
5,409 | - |
|
Datasheet |
2-SMD | Multifuse®, MF-SM | Tape & Reel (TR) | Active | Polymeric | 60V | 500 mA | 1 A | 40 A | 4 s | 350 mOhms | 1.4 Ohms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.287" L x 0.214" W (7.31mm x 5.44mm) | - | 0.125" (3.18mm) | - |
|
RXEF050-2PTC RESET FUSE 72V 500MA RADIAL |
13,378 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RXEF | Tape & Reel (TR) | 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 0.118" T (7.90mm x 3.00mm) | 0.539" (13.70mm) | - | 0.199" (5.05mm) |
|
RXEF010PTC RESET FUSE 60V 100MA RADIAL |
8,776 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RXEF | Bag | 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 0.118" T (7.40mm x 3.00mm) | 0.457" (11.60mm) | - | 0.199" (5.05mm) |
|
MF-R020-2PTC RESET FUSE 60V 200MA RADIAL |
24,042 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-R | 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) |
|
RXEF025PTC RESET FUSE 72V 250MA RADIAL |
19,910 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RXEF | Bag | Active | 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 0.118" T (7.40mm x 3.00mm) | 0.500" (12.70mm) | - | 0.199" (5.05mm) |
|
NANOSMDC012F-2PTC RESET FUSE 48V 120MA 1206 |
20,303 | - |
|
Datasheet |
1206 (3216 Metric), Concave | PolySwitch®, nanoSMD | Tape & Reel (TR) | Active | Polymeric | 48V | 120 mA | 390 mA | 10 A | 200 ms | 1.4 Ohms | 6.5 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.126" L x 0.063" W (3.20mm x 1.59mm) | - | 0.039" (1.00mm) | - |
|
RXEF050PTC RESET FUSE 72V 500MA RADIAL |
10,234 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RXEF | Bag | 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 0.118" T (7.90mm x 3.00mm) | 0.539" (13.70mm) | - | 0.199" (5.05mm) |
|
MF-R110PTC RESET FUSE 30V 1.1A RADIAL |
6,285 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-R | Bulk | Active | Polymeric | 30V | 1.1 A | 2.2 A | 40 A | 6.6 s | 100 mOhms | 270 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.350" Dia x 0.118" T (8.90mm x 3.00mm) | 0.551" (14.00mm) | - | 0.201" (5.10mm) |
|
MF-R050PTC RESET FUSE 60V 500MA RADIAL |
2,449 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-R | Bulk | 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) |

