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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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RUEF400-2PTC RESET FUSE 30V 4A RADIAL |
2,688 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RUEF | Tape & Reel (TR) | Active | Polymeric | 30V | 4 A | 8 A | 100 A | 12.7 s | 10 mOhms | 50 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.551" L x 0.118" W (14.00mm x 3.00mm) | 0.760" (19.30mm) | - | 0.199" (5.05mm) |
|
|
DECASMDC050F/60-2PTC RESET FUSE 60V 550MA 2018 |
30,906 | - |
|
Datasheet |
2018 (5045 Metric), Concave | PolySwitch®, decaSMD | Tape & Reel (TR) | Active | Polymeric | 60V | 550 mA | 1.1 A | 10 A | 100 ms | 200 mOhms | 1.1 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.197" L x 0.177" W (5.01mm x 4.50mm) | - | 0.035" (0.89mm) | - |
|
2920L075/60MRPTC RESET FUSE 60V 750MA 2920 |
17,041 | - |
|
Datasheet |
2920 (7351 Metric), Concave | POLY-FUSE®, 2920L | Tape & Reel (TR) | Active | Polymeric | 60V | 750 mA | 1.5 A | 10 A | 300 ms | 300 mOhms | 950 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.289" L x 0.202" W (7.35mm x 5.12mm) | - | 0.049" (1.25mm) | - |
|
RGEF500-2PTC RESET FUSE 16V 5A RADIAL |
10,480 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RGEF | Tape & Reel (TR) | Active | Polymeric | 16V | 5 A | 8.5 A | 100 A | 2 s | 15 mOhms | 34 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.390" L x 0.098" W (9.90mm x 2.50mm) | 0.563" (14.30mm) | - | 0.199" (5.05mm) |
|
|
TSV250-130F-2PTC RESET FUSE 60V 130MA 2SMD |
9,772 | - |
|
Datasheet |
2-SMD | PolySwitch®, TS250 | Tape & Reel (TR) | Active | Polymeric | 60V (250V Int) | 130 mA | 260 mA | 3 A | 2 s | 4 Ohms | 12 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.240" L x 0.272" W (6.10mm x 6.90mm) | - | 0.126" (3.20mm) | - |
|
0ZTH0020FF2EPTC RESET FUSE 30V 200MA 1210 |
2,517 | - |
|
Datasheet |
1210 (3225 Metric), Concave | 0ZTH | Tape & Reel (TR) | Active | Polymeric | 30V | 200 mA | 500 mA | 10 A | 100 ms | 800 mOhms | 5 Ohms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.047" (1.20mm) | - |
|
RKEF300PTC RESET FUSE 60V 3A RADIAL |
5,287 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RKEF | Bag | Active | Polymeric | 60V | 3 A | 6 A | 40 A | 19.8 s | 30 mOhms | 80 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.650" L x 0.118" W (16.50mm x 3.00mm) | 0.835" (21.20mm) | - | 0.199" (5.05mm) |
|
2920L200/24DRPTC RESET FUSE 24V 2A 2920 |
4,157 | - |
|
Datasheet |
2920 (7351 Metric), Concave | POLY-FUSE®, 2920L | Tape & Reel (TR) | Active | Polymeric | 24V | 2 A | 4 A | 40 A | 5 s | 50 mOhms | 125 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.289" L x 0.202" W (7.35mm x 5.12mm) | - | 0.049" (1.25mm) | - |
|
NANOASMDCH050F/24-2PTC RESET FUSE 24V 500MA 1206 |
18,486 | - |
|
Datasheet |
1206 (3216 Metric), Concave | PolySwitch®, ASMD | Tape & Reel (TR) | Active | Polymeric | 24V | 500 mA | 2.5 A | 20 A | 100 ms | 200 mOhms | 1.6 Ohms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Surface Mount | 0.126" L x 0.062" W (3.20mm x 1.58mm) | - | 0.045" (1.14mm) | - |
|
SMDC300F/24-2PTC RESET FUSE 24V 3A 2920 |
10,904 | - |
|
Datasheet |
2920 (7351 Metric), Concave | SMDC | Tape & Reel (TR) | Active | Polymeric | 24V | 3 A | 6 A | 40 A | 5 s | - | - | - | - | - | - | - | Surface Mount | 0.295" L x 0.201" W (7.50mm x 5.10mm) | - | 0.043" (1.10mm) | - |
|
FEMTOSMDC005F-2PTC RESET FUSE 15V 50MA 0603 |
7,779 | - |
|
Datasheet |
0603 (1608 Metric), Concave | PolySwitch®, femtoSMD | Tape & Reel (TR) | Active | Polymeric | 15V | 50 mA | 150 mA | 40 A | 100 ms | 3.8 Ohms | 30 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.063" L x 0.032" W (1.60mm x 0.80mm) | - | 0.033" (0.85mm) | - |
|
|
AHS300-2PTC RESET FUSE 16V 3A 2SMD |
2,921 | - |
|
Datasheet |
2-SMD | PolySwitch®, AHS | Tape & Reel (TR) | Active | Polymeric | 16V | 3 A | 6 A | 70 A | 8 s | 24 mOhms | 83 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Surface Mount | 0.343" L x 0.250" W (8.70mm x 6.36mm) | - | 0.118" (3.00mm) | - |
|
2920L110/60MRPTC RESET FUSE 60V 1.1A 2920 |
39,778 | - |
|
Datasheet |
2920 (7351 Metric), Concave | POLY-FUSE®, 2920L | Tape & Reel (TR) | Active | Polymeric | 60V | 1.1 A | 2.2 A | 20 A | 500 ms | 120 mOhms | 410 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.289" L x 0.202" W (7.36mm x 5.12mm) | - | 0.079" (2.00mm) | - |
|
2920L185DRPTC RESET FUSE 33V 1.85A 2920 |
6,913 | - |
|
Datasheet |
2920 (7351 Metric), Concave | POLY-FUSE®, 2920L | Tape & Reel (TR) | Active | Polymeric | 33V | 1.85 A | 3.7 A | 40 A | 2.5 s | 50 mOhms | 150 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.289" L x 0.202" W (7.35mm x 5.12mm) | - | 0.049" (1.25mm) | - |
|
|
MF-NSMF200-2PTC RESET FUSE 6V 2A 1206 |
3,049 | - |
|
Datasheet |
1206 (3216 Metric), Concave | Multifuse®, MF-NSMF | Tape & Reel (TR) | Active | Polymeric | 6V | 2 A | 4 A | 100 A | 1 s | 20 mOhms | 85 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.128" L x 0.063" W (3.25mm x 1.60mm) | - | 0.063" (1.60mm) | - |
|
SRP350FPTC RESET FUSE 30V 3.5A STRAP |
32,069 | - |
|
Datasheet |
Strap | PolySwitch®, SRP | Bulk | Active | Polymeric | 30V | 3.5 A | 6.3 A | 100 A | 3 s | 17 mOhms | 50 mOhms | - | -40°C ~ 85°C | - | - | - | User Defined | 1.185" L x 0.522" W (30.10mm x 13.25mm) | - | 0.043" (1.10mm) | - |
|
SRP200FPTC RESET FUSE 30V 2A STRAP |
18,535 | - |
|
Datasheet |
Strap | PolySwitch®, SRP | Bulk | Active | Polymeric | 30V | 2 A | 4.4 A | 100 A | 4 s | 30 mOhms | 100 mOhms | - | -40°C ~ 85°C | - | - | - | User Defined | 0.880" L x 0.417" W (22.35mm x 10.60mm) | - | 0.043" (1.10mm) | - |
|
2920L300/15DRPTC RESET FUSE 15V 3A 2920 |
4,390 | - |
|
Datasheet |
2920 (7351 Metric), Concave | POLY-FUSE®, 2920L | Tape & Reel (TR) | Active | Polymeric | 15V | 3 A | 5 A | 40 A | 20 s | 15 mOhms | 48 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.289" L x 0.202" W (7.35mm x 5.12mm) | - | 0.049" (1.25mm) | - |
|
RUEF600PTC RESET FUSE 30V 6A RADIAL |
15,967 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RUEF | Bag | Active | Polymeric | 30V | 6 A | 12 A | 100 A | 16 s | 5 mOhms | 40 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.650" L x 0.118" W (16.50mm x 3.00mm) | 0.949" (24.10mm) | - | 0.400" (10.15mm) |
|
MF-R900PTC RESET FUSE 30V 9A RADIAL |
1,928 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-R | Bulk | Active | Polymeric | 30V | 9 A | 18 A | 40 A | 20 s | 5 mOhms | 20 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.953" L x 0.118" W (24.20mm x 3.00mm) | 1.295" (32.90mm) | - | 0.402" (10.20mm) |

