Available 24/7 at
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
MF-SM100/33-2PTC RESET FUSE 33V 1.1A 2SMD |
31,940 | - |
|
Datasheet |
2-SMD | Multifuse®, MF-SM | Tape & Reel (TR) | Active | Polymeric | 33V | 1.1 A | 2.2 A | 40 A | 500 ms | 120 mOhms | 410 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-MSMF020/60-2PTC RESET FUSE 60V 200MA 1812 |
16,528 | - |
|
Datasheet |
1812 (4532 Metric), Concave | Multifuse®, MF-MSMF | Tape & Reel (TR) | Active | Polymeric | 60V | 200 mA | 400 mA | 40 A | 150 ms | 400 mOhms | 6 Ohms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.179" L x 0.128" W (4.55mm x 3.24mm) | - | 0.043" (1.10mm) | - |
|
MF-SM075/60-2PTC RESET FUSE 60V 750MA 2SMD |
11,450 | - |
|
Datasheet |
2-SMD | Multifuse®, MF-SM | Tape & Reel (TR) | Active | Polymeric | 60V | 750 mA | 1.5 A | 10 A | 300 ms | 230 mOhms | 1 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) | - |
|
NANOSMDC150F-2PTC RESET FUSE 6V 1.5A 1206 |
25,806 | - |
|
Datasheet |
1206 (3216 Metric), Concave | PolySwitch®, nanoSMD | Tape & Reel (TR) | Active | Polymeric | 6V | 1.5 A | 3 A | 100 A | 300 ms | 40 mOhms | 110 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.126" L x 0.063" W (3.20mm x 1.59mm) | - | 0.035" (0.89mm) | - |
|
NANOSMDC035F-2PTC RESET FUSE 16V 350MA 1206 |
16,319 | - |
|
Datasheet |
1206 (3216 Metric), Concave | PolySwitch®, nanoSMD | Tape & Reel (TR) | Active | Polymeric | 16V | 350 mA | 750 mA | 20 A | 100 ms | 450 mOhms | 1.35 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.126" L x 0.063" W (3.20mm x 1.59mm) | - | 0.032" (0.82mm) | - |
|
|
MF-SM150/33-2PTC RESET FUSE 33V 1.5A 2SMD |
15,612 | - |
|
Datasheet |
2-SMD | Multifuse®, MF-SM | Tape & Reel (TR) | Active | Polymeric | 33V | 1.5 A | 3 A | 40 A | 5 s | 60 mOhms | 230 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.344" L x 0.264" W (8.75mm x 6.71mm) | - | 0.118" (3.00mm) | - |
|
NANOSMDC050F/13.2-2PTC RESET FUSE 13.2V 500MA 1206 |
15,397 | - |
|
Datasheet |
1206 (3216 Metric), Concave | PolySwitch®, nanoSMD | Tape & Reel (TR) | Active | Polymeric | 13.2V | 500 mA | 1.1 A | 100 A | 100 ms | 200 mOhms | - | - | - | - | - | - | Surface Mount | 0.126" L x 0.063" W (3.20mm x 1.60mm) | - | 0.029" (0.74mm) | - |
|
MICROSMD005F-2PTC RESET FUSE 30V 50MA 1210 |
14,613 | - |
|
Datasheet |
1210 (3225 Metric), Concave | PolySwitch®, microSMD | Tape & Reel (TR) | Active | Polymeric | 30V | 50 mA | 150 mA | 10 A | 1.5 s | 3.6 Ohms | 50 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.033" (0.85mm) | - |
|
MF-FSMF050X-2PTC RESET FUSE 6V 500MA 0603 |
47,024 | - |
|
Datasheet |
0603 (1608 Metric), Concave | Multifuse®, MF-FSMF | Tape & Reel (TR) | Active | Polymeric | 6V | 500 mA | 1 A | 40 A | 100 ms | 100 mOhms | 800 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.065" L x 0.033" W (1.65mm x 0.85mm) | - | 0.039" (1.00mm) | - |
|
MF-SMDF050-2PTC RESET FUSE 60V 550MA 2018 |
43,706 | - |
|
Datasheet |
2018 (5045 Metric), Concave | Multifuse®, MF-SMDF | Tape & Reel (TR) | Active | Polymeric | 60V | 550 mA | 1.2 A | 10 A | 3 s | 200 mOhms | 1 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.200" L x 0.180" W (5.08mm x 4.58mm) | - | 0.043" (1.09mm) | - |
|
NANOASMDC010F-2PTC RESET FUSE 60V 100MA 1206 |
35,052 | - |
|
Datasheet |
1206 (3216 Metric), Concave | PolySwitch®, nanoASMD | Tape & Reel (TR) | Active | Polymeric | 60V | 100 mA | 250 mA | 10 A | 1 s | 1.6 Ohms | 15 Ohms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.126" L x 0.062" W (3.20mm x 1.58mm) | - | 0.039" (1.00mm) | - |
|
MICROSMD010F-2PTC RESET FUSE 30V 100MA 1210 |
30,648 | - |
|
Datasheet |
1210 (3225 Metric), Concave | PolySwitch®, microSMD | Tape & Reel (TR) | Active | Polymeric | 30V | 100 mA | 250 mA | 10 A | 1 s | 2.1 Ohms | 15 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.033" (0.85mm) | - |
|
NANOSMDC110F-2PTC RESET FUSE 6V 1.1A 1206 |
23,501 | - |
|
Datasheet |
1206 (3216 Metric), Concave | PolySwitch®, nanoSMD | Tape & Reel (TR) | Active | Polymeric | 6V | 1.1 A | 2.2 A | 100 A | 100 ms | 70 mOhms | 200 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.126" L x 0.063" W (3.20mm x 1.59mm) | - | 0.026" (0.67mm) | - |
|
MINISMDC030F-2PTC RESET FUSE 30V 300MA 1812 |
5,962 | - |
|
Datasheet |
1812 (4532 Metric), Concave | PolySwitch®, miniSMD | Tape & Reel (TR) | Active | Polymeric | 30V | 300 mA | 600 mA | 40 A | 100 ms | 200 mOhms | 1.75 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.179" L x 0.128" W (4.55mm x 3.24mm) | - | 0.035" (0.89mm) | - |
|
RUEF110PTC RESET FUSE 30V 1.1A RADIAL |
5,322 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RUEF | Bag | Active | Polymeric | 30V | 1.1 A | 2.2 A | 100 A | 6.6 s | 70 mOhms | 170 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.291" Dia x 0.118" T (7.40mm x 3.00mm) | 0.559" (14.20mm) | - | 0.199" (5.05mm) |
|
NANOSMDC075F-2PTC RESET FUSE 6V 750MA 1206 |
4,572 | - |
|
Datasheet |
1206 (3216 Metric), Concave | PolySwitch®, nanoSMD | Tape & Reel (TR) | Active | Polymeric | 6V | 750 mA | 1.5 A | 100 A | 100 ms | 90 mOhms | 300 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.126" L x 0.063" W (3.20mm x 1.59mm) | - | 0.027" (0.68mm) | - |
|
RXEF040PTC RESET FUSE 72V 400MA RADIAL |
3,236 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RXEF | Bag | Active | 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 0.118" T (7.60mm x 3.00mm) | 0.532" (13.50mm) | - | 0.199" (5.05mm) |
|
MINISMDC260F-2PTC RESET FUSE 6V 2.6A 1812 |
2,611 | - |
|
Datasheet |
1812 (4532 Metric), Concave | PolySwitch®, miniSMD | Tape & Reel (TR) | Active | Polymeric | 6V | 2.6 A | 5 A | 100 A | 5 s | 15 mOhms | 43 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.179" L x 0.128" W (4.55mm x 3.24mm) | - | 0.031" (0.78mm) | - |
|
1206L016WRPTC RESET FUSE 30V 160MA 1206 |
66,778 | - |
|
Datasheet |
1206 (3216 Metric), Concave | POLY-FUSE®, 1206L | Tape & Reel (TR) | Active | Polymeric | 30V | 160 mA | 370 mA | 100 A | 300 ms | 1.2 Ohms | 4.5 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.126" L x 0.065" W (3.20mm x 1.65mm) | - | 0.057" (1.45mm) | - |
|
1206L012WRPTC RESET FUSE 30V 125MA 1206 |
65,421 | - |
|
Datasheet |
1206 (3216 Metric), Concave | POLY-FUSE®, 1206L | Tape & Reel (TR) | Active | Polymeric | 30V | 125 mA | 290 mA | 100 A | 200 ms | 1.5 Ohms | 6 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.126" L x 0.065" W (3.20mm x 1.65mm) | - | 0.057" (1.45mm) | - |

