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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
16R700GKLFPOLYFUSE RADIAL |
5,153 | - |
|
- |
- | - | Bulk | Obsolete | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
30R500UFX1001POLYFUSE RADIAL |
3,078 | - |
|
- |
- | - | Bulk | Obsolete | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
600R150FX1001POLYFUSE RADIAL |
5,929 | - |
|
- |
- | - | Bulk | Obsolete | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
250R170-CMRPOLYFUSE RADIAL |
2,414 | - |
|
- |
- | - | Tape & Reel (TR) | Obsolete | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
MPTS1206L005PTC RESET FUSE 60V 0.05A 1206 |
8,280 | - |
|
Datasheet |
1206 (3216 Metric) | MPTS | Tape & Reel (TR) | Active | Polymeric | 60V | 50 mA | 150 mA | 100 A | 1.5 s | 3.6 Ohms | 50 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.128" L x 0.065" W (3.25mm x 1.65mm) | - | 0.033" (0.85mm) | - |
|
MPTS2920L100PTC RESET FUSE 33V 1.1A 2920 |
8,162 | - |
|
Datasheet |
2920 (7351 Metric) | MPTS | Tape & Reel (TR) | Active | Polymeric | 33V | 1.1 A | 2.2 A | 100 A | 500 ms | 90 mOhms | 410 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.039" (1.00mm) | - |
|
FSMD250-2920-RRESETTABLE FUSE - SMD, 2920 SIZE |
5,969 | - |
|
Datasheet |
2920 (7351 Metric), Concave | FSMD2920 | Tape & Reel (TR) | Active | - | 16V | 2.5 A | 5 A | 100 A | 16 s | 25 mOhms | 85 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.035" (0.90mm) | - |
|
FRU160-30FRESETTABLE FUSE - PPTC RADIAL LE |
3,362 | - |
|
Datasheet |
Radial, Disc | FRU | Bulk | Active | - | 30V | 1.6 A | 3.2 A | 100 A | 8 s | 30 mOhms | 110 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.350" L x 0.118" W (8.90mm x 3.00mm) | 0.598" (15.20mm) | - | 0.201" (5.10mm) |
|
FSMD110-16-1206RRESETTABLE FUSE - SMD, 1206 SIZE |
4,901 | - |
|
Datasheet |
1206 (3216 Metric), Concave | FSMD1206 | Tape & Reel (TR) | Active | - | 16V | 1.1 A | 2.2 A | 100 A | 300 ms | 40 mOhms | 180 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.128" L x 0.065" W (3.25mm x 1.65mm) | - | 0.055" (1.40mm) | - |
|
MF-LSMF400/12X-2PTC RESETTABLE 4.0A 12V SMD 2920 |
4,420 | - |
|
Datasheet |
2920 (7351 Metric), Concave | Multifuse®, MF-LSMF | Tape & Reel (TR) | Active | Polymeric | 12V | 4 A | 8 A | 40 A | 15 s | 5 mOhms | - | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.063" (1.60mm) | - |
|
1210L010/90YR1210L |
5,398 | - |
|
Datasheet |
1210 (3225 Metric), Concave | PolySwitch® 1210L | Tape & Reel (TR) | Discontinued at Digi-Key | Polymeric | 90V | 100 mA | 250 mA | 10 A | 300 ms | 1.5 Ohms | 15 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.101" W (3.22mm x 2.58mm) | - | 0.049" (1.25mm) | - |
|
KMC3S010RYPolymer PTC 0.1A Resettable Fuse |
3,730 | - |
|
Datasheet |
1206 (3216 Metric), Concave | KMC | Tape & Reel (TR) | Active | Polymeric | 60V | 100 mA | 250 mA | 100 A | 1 s | 1.6 Ohms | 15 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.128" L x 0.065" W (3.25mm x 1.65mm) | - | 0.035" (0.90mm) | - |
|
KRG0300300SBYPolymer PTC Resettable Fuse 30V |
8,455 | - |
|
Datasheet |
Radial, Disc | KRG | Bag | Active | Polymeric | 30V | 3 A | 6 A | 40 A | 10.8 s | 20 mOhms | 80 mOhms | 50 mOhms | -40°C ~ 85°C | - | - | - | Through Hole | 0.449" L x 0.138" W (11.40mm x 3.50mm) | 0.681" (17.30mm) | - | 0.197" (5.00mm) |
|
R1812-150-24-RPTC Fuse - SMD 1812, 1.5A 24VDC |
5,087 | - |
|
Datasheet |
1812 (4532 Metric), Concave | - | Tape & Reel (TR) | Active | Polymeric | 24V | 1.5 A | 3 A | 100 A | 500 ms | 40110 mOhms | 120 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.179" L x 0.128" W (4.55mm x 3.24mm) | - | 0.051" (1.30mm) | - |
|
B59930C0160A051PTC THERMISTORS |
6,069 | - |
|
- |
- | - | Bulk | Obsolete | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
RS16-600PTC Fuse - Radial Lead, 16V 6A |
5,086 | - |
|
Datasheet |
Radial, Disc | RS16 | Bulk | Active | Polymeric | 16V | 6 A | 10.2 A | 100 A | 5.8 s | 0.009 Ohms | 0.033 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | - | - | - | - |

