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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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0ZRE0025FF1EPTC RESET FUSE 240V 250MA RADIAL |
14,608 | - |
|
Datasheet |
Radial, Disc | 0ZRE | Box | 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) |
|
1812L160/12DRPTC RESET FUSE 12V 1.6A 1812 |
12,592 | - |
|
Datasheet |
1812 (4532 Metric), Concave | POLY-FUSE®, 1812L | Tape & Reel (TR) | Active | Polymeric | 12V | 1.6 A | 2.8 A | 100 A | 1 s | 30 mOhms | 100 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.179" L x 0.128" W (4.55mm x 3.24mm) | - | 0.049" (1.25mm) | - |
|
|
PRG21BB150MB1RKPTC RESET FUSE 20V 59MA 0805 |
7,636 | - |
|
Datasheet |
0805 (2012 Metric) | POSISTOR®, PRG | Tape & Reel (TR) | Active | Ceramic | 20V | 59 mA | 116 mA | 1.6 A | - | - | - | 15 Ohms | -20°C ~ 60°C | - | - | - | Surface Mount | 0.079" L x 0.049" W (2.00mm x 1.25mm) | - | 0.057" (1.45mm) | - |
|
RXEF135PTC RESET FUSE 72V 1.35A RADIAL |
6,579 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RXEF | Bag | Active | Polymeric | 72V | 1.35 A | 2.7 A | 40 A | 9.6 s | 120 mOhms | 300 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.571" Dia x 0.118" T (14.50mm x 3.00mm) | 0.752" (19.10mm) | - | 0.199" (5.05mm) |
|
1812L150/16DRPTC RESET FUSE 16V 1.5A 1812 |
6,436 | - |
|
Datasheet |
1812 (4532 Metric), Concave | POLY-FUSE®, 1812L | Tape & Reel (TR) | Active | Polymeric | 16V | 1.5 A | 3 A | 100 A | 500 ms | 40 mOhms | 110 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.179" L x 0.128" W (4.55mm x 3.24mm) | - | 0.049" (1.25mm) | - |
|
|
30R110UUPTC RESET FUSE 30V 1.1A RADIAL |
3,225 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 30R | Bulk | Active | Polymeric | 30V | 1.1 A | 2.2 A | 40 A | 6.6 s | 50 mOhms | 170 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.291" L x 0.118" W (7.40mm x 3.00mm) | 0.559" (14.20mm) | - | 0.201" (5.10mm) |
|
|
30R250UPRPTC RESET FUSE 30V 2.5A RADIAL |
3,215 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 30R | Cut Tape (CT) | Active | Polymeric | 30V | 2.5 A | 5 A | 40 A | 10.3 s | 20 mOhms | 70 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.449" L x 0.118" W (11.40mm x 3.00mm) | 0.720" (18.30mm) | - | 0.118" (3.00mm) |
|
|
60R050XUPTC RESET FUSE 60V 500MA RADIAL |
2,152 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 60R | Bulk | Active | Polymeric | 60V | 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) |
|
1812L110/16DRPTC RESET FUSE 16V 1.1A 1812 |
1,988 | - |
|
Datasheet |
1812 (4532 Metric), Concave | POLY-FUSE®, 1812L | Tape & Reel (TR) | Active | Polymeric | 16V | 1.1 A | 1.95 A | 100 A | 300 ms | 60 mOhms | 180 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.179" L x 0.128" W (4.55mm x 3.24mm) | - | 0.049" (1.25mm) | - |
|
1206L035/30WRPTC RESET FUSE 30V 350MA 1206 |
1,322 | - |
|
Datasheet |
1206 (3216 Metric), Concave | POLY-FUSE®, 1206L | Tape & Reel (TR) | Active | Polymeric | 30V | 350 mA | 750 mA | 100 A | 100 ms | 300 mOhms | 1.2 Ohms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.126" L x 0.065" W (3.20mm x 1.65mm) | - | 0.039" (1.00mm) | - |
|
MF-R400-2PTC RESET FUSE 30V 4A RADIAL |
54,959 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-R | Tape & Reel (TR) | Active | Polymeric | 30V | 4 A | 8 A | 40 A | 12.7 s | 10 mOhms | 50 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.567" L x 0.118" W (14.40mm x 3.00mm) | 0.976" (24.80mm) | - | 0.201" (5.10mm) |
|
MF-PSMF010/24X-2PTC RESETTABLE 0.1A 24V SMD 0805 |
10,128 | - |
|
Datasheet |
0805 (2012 Metric), Concave | Multifuse®, MF-PSMF | Tape & Reel (TR) | Active | Polymeric | 24V | 100 mA | 300 mA | 80 A | 1.5 s | 1 Ohms | 7.5 Ohms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.085" L x 0.053" W (2.15mm x 1.35mm) | - | 0.033" (0.85mm) | - |
|
MF-PSMF035X-2PTC RESET FUSE 6V 350MA 0805 |
9,328 | - |
|
Datasheet |
0805 (2012 Metric), Concave | Multifuse®, MF-PSMF | Tape & Reel (TR) | Active | Polymeric | 6V | 350 mA | 750 mA | 40 A | 100 ms | 250 mOhms | 1.2 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.085" L x 0.053" W (2.15mm x 1.35mm) | - | 0.033" (0.85mm) | - |
|
MF-R300-2PTC RESET FUSE 30V 3A RADIAL |
9,247 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-R | Tape & Reel (TR) | 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) |
|
|
PRG21BC3R3MM1RAPTC RESET FUSE 20V 180MA 0805 |
8,252 | - |
|
Datasheet |
0805 (2012 Metric) | POSISTOR®, PRG | Tape & Reel (TR) | Active | Ceramic | 20V | 180 mA | 400 mA | 7.5 A | - | - | - | 3.3 Ohms | -20°C ~ 85°C | - | - | - | Surface Mount | 0.079" L x 0.049" W (2.00mm x 1.25mm) | - | 0.043" (1.10mm) | - |
|
|
0ZRM0050FF1EPTC RESET FUSE 120V 500MA RADIAL |
3,309 | - |
|
Datasheet |
Radial, Disc | 0ZRM | Box | 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) |
|
B59407A0115A062THERMISTOR PTC 470 OHM 25% 0402 |
6,147 | - |
|
Datasheet |
0402 (1005 Metric) | B59407 | Tape & Reel (TR) | Active | Ceramic | 32V | 13 mA | 32 mA | 120 mA | - | 265 Ohms | 470 Ohms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Surface Mount | 0.039" L x 0.020" W (1.00mm x 0.50mm) | - | 0.022" (0.55mm) | - |
|
|
PFRA.250PTC RESET FUSE 30V 2.5A RADIAL |
2,870 | - |
|
Datasheet |
Radial, Disc | PFRA | Bulk | Active | Polymeric | 30V | 2.5 A | 5 A | 40 A | 10.3 s | 25 mOhms | 70 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) |
|
RXEF110-2PTC RESET FUSE 72V 1.1A RADIAL |
1,877 | - |
|
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) |
|
NANOSMDC200F-2PTC RESET FUSE 6V 2A 1206 |
1,266 | - |
|
Datasheet |
1206 (3216 Metric), Concave | PolySwitch®, nanoSMD | Tape & Reel (TR) | Active | Polymeric | 6V | 2 A | 4 A | 100 A | 1.5 s | 20 mOhms | 72 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.126" L x 0.063" W (3.20mm x 1.59mm) | - | 0.043" (1.10mm) | - |

