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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
1812L260/16MRPTC RESET FUSE 16V 2.6A 1812 |
8,508 | - |
|
Datasheet |
1812 (4532 Metric), Concave | POLY-FUSE®, 1812L | Tape & Reel (TR) | Active | Polymeric | 16V | 2.6 A | 5 A | 100 A | 5 s | 15 mOhms | 50 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.186" L x 0.131" W (4.72mm x 3.33mm) | - | 0.079" (2.00mm) | - |
|
PTCCL07H111HBEPTC RESET FUSE 265V 110MA RADIAL |
341 | - |
|
Datasheet |
Radial, Disc | PTCCL - 265V | Bulk | Active | Ceramic | 265V | 110 mA | 165 mA | 650 mA | - | - | - | 48 Ohms | 0°C ~ 70°C | - | - | - | Through Hole | 0.276" Dia x 0.217" T (7.00mm x 5.50mm) | 0.472" (12.00mm) | - | 0.197" (5.00mm) |
|
NANOASMDCH035F/30-2PTC RESET FUSE 30V 350MA 1206 |
8,431 | - |
|
Datasheet |
1206 (3216 Metric), Concave | PolySwitch®, ASMD | Tape & Reel (TR) | Active | Polymeric | 30V | 350 mA | 1.75 A | 20 A | 200 ms | 400 mOhms | 2.2 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) | - |
|
3425L300/36MR3425L PPTC |
4,218 | - |
|
Datasheet |
Nonstandard SMD | 3425L | Tape & Reel (TR) | Active | Polymeric | 36V | 3 A | 6 A | 20 A | 20 s | 10 mOhms | 60 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.341" L x 0.250" W (8.65mm x 6.35mm) | - | 0.055" (1.40mm) | - |
|
3425L200/60MR3425L PPTC |
2,134 | - |
|
Datasheet |
Nonstandard SMD | 3425L | Tape & Reel (TR) | Active | Polymeric | 60V | 2 A | 4 A | 20 A | 10 s | 40 mOhms | 200 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.341" L x 0.250" W (8.65mm x 6.35mm) | - | 0.071" (1.80mm) | - |
|
B59607A0120A062PTC RESET FUSE 30V 70MA 1210 |
10,411 | - |
|
Datasheet |
1210 (3225 Metric) | B59607 | Tape & Reel (TR) | Active | Ceramic | 30V | 70 mA | 130 mA | 400 mA | - | - | - | 55 Ohms | -20°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.126" L x 0.098" W (3.20mm x 2.50mm) | - | 0.071" (1.80mm) | - |
|
B59907A0120A062PTC RESET FUSE 400V 12MA 1210 |
10,242 | - |
|
Datasheet |
1210 (3225 Metric) | B59907 | Tape & Reel (TR) | Active | Ceramic | 400V | 12 mA | 22 mA | 150 mA | - | 640 Ohms | 1.5 kOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Surface Mount | 0.126" L x 0.098" W (3.20mm x 2.50mm) | - | 0.071" (1.80mm) | - |
|
|
LR4-450FPTC RESET FUSE 20V 4.5A STRAP |
6,004 | - |
|
Datasheet |
Strap | PolySwitch®, LR4 | Bag | Active | Polymeric | 20V | 4.5 A | 8.9 A | 100 A | 5 s | 11 mOhms | 28 mOhms | - | -40°C ~ 85°C | - | - | - | User Defined | 0.984" L x 0.413" W (25.00mm x 10.50mm) | - | 0.039" (1.00mm) | - |
|
B59707A0120A062PTC RESET FUSE 80V 50MA 1210 |
32,036 | - |
|
Datasheet |
1210 (3225 Metric) | B59707 | Tape & Reel (TR) | Active | Ceramic | 80V | 50 mA | 90 mA | 300 mA | - | - | - | 125 Ohms | -20°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.126" L x 0.098" W (3.20mm x 2.50mm) | - | 0.071" (1.80mm) | - |
|
|
B59807A0090A062PTC RESET FUSE 265V 15MA 1210 |
21,168 | - |
|
Datasheet |
1210 (3225 Metric) | B59807 | Tape & Reel (TR) | Active | Ceramic | 265V | 15 mA | 40 mA | 200 mA | - | - | - | 400 Ohms | -20°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.126" L x 0.098" W (3.20mm x 2.50mm) | - | 0.071" (1.80mm) | - |
|
NANOSMDCH030F/24-02PTC RESET FUSE 24V 300MA 1206 |
12,722 | - |
|
Datasheet |
1206 (3216 Metric) | PolySwitch®, nanoSMD | Tape & Reel (TR) | Active | Polymeric | 24V | 300 mA | 820 mA | 10 A | 100 ms | 500 mOhms | 1.95 Ohms | - | -40°C ~ 125°C | - | - | - | Surface Mount | 0.134" L x 0.071" W (3.40mm x 1.80mm) | - | 0.049" (1.25mm) | - |
|
|
LVR075S-240PTC RESET FUSE 240V 750MA RADIAL |
6,626 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, LVR | Bulk | Active | Polymeric | 240V (265V Int) | 750 mA | 1.5 A | 7.5 A | 18 s | 316 mOhms | 839 mOhms | - | -20°C ~ 85°C | - | - | - | Through Hole | 0.450" L x 0.189" W (11.43mm x 4.80mm) | 0.921" (23.40mm) | - | 0.200" (5.08mm) |
|
MF-LSMF300/24X-2PTC RESET FUSE 24V 3A 2920 |
4,389 | - |
|
Datasheet |
2920 (7351 Metric), Concave | Multifuse®, MF-LSMF | Tape & Reel (TR) | Active | Polymeric | 24V | 3 A | 5.2 A | 20 A | 5 s | 20 mOhms | 75 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.289" L x 0.202" W (7.36mm x 5.12mm) | - | 0.063" (1.60mm) | - |
|
LVR055SPTC RESET FUSE 240V 550MA RADIAL |
1,000 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, LVR | Bulk | Active | Polymeric | 240V (265V Int) | 550 mA | 1.25 A | 7 A | 26 s | 450 mOhms | 1.45 Ohms | - | -20°C ~ 85°C | - | - | - | Through Hole | 0.551" L x 0.161" W (14.00mm x 4.10mm) | 0.854" (21.70mm) | - | 0.200" (5.08mm) |
|
RUEF900PTC RESET FUSE 30V 9A RADIAL |
5,738 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RUEF | Bag | Active | Polymeric | 30V | 9 A | 18 A | 100 A | 20 s | 5 mOhms | 20 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.949" L x 0.118" W (24.10mm x 3.00mm) | 1.142" (29.00mm) | - | 0.400" (10.15mm) |
|
RXEF375PTC RESET FUSE 72V 3.75A RADIAL |
790 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RXEF | Bag | Active | Polymeric | 72V | 3.75 A | 7.5 A | 40 A | 24 s | 30 mOhms | 80 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 1.071" Dia x 0.118" T (27.20mm x 3.00mm) | 1.252" (31.80mm) | - | 0.400" (10.15mm) |
|
0805L075SLYRPTC RESET FUSE 6V 750MA 0805 |
23,696 | - |
|
Datasheet |
0805 (2012 Metric), Concave | POLY-FUSE®, LoRho | Tape & Reel (TR) | Active | Polymeric | 6V | 750 mA | 1.5 A | 50 A | 200 ms | 40 mOhms | 160 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.083" L x 0.053" W (2.10mm x 1.35mm) | - | 0.030" (0.75mm) | - |
|
AHEF500PTC RESET FUSE 32V 5A RADIAL |
2,201 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, AHEF | Bag | Active | Polymeric | 32V | 5 A | 10 A | 100 A | 9 s | 15 mOhms | 40 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.551" L x 0.150" W (14.00mm x 3.80mm) | 0.949" (24.10mm) | - | 0.199" (5.05mm) |
|
RKEF500PTC RESET FUSE 60V 5A RADIAL |
11,046 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RKEF | Bag | Active | Polymeric | 60V | 5 A | 10 A | 40 A | 28 s | 12 mOhms | 50 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.949" L x 0.118" W (24.10mm x 3.00mm) | 1.142" (29.00mm) | - | 0.400" (10.15mm) |
|
MF-FSML035/8-2PTC RESET FUSE 8V 350MA 0603 |
5,221 | - |
|
Datasheet |
0603 (1608 Metric), Concave | Multifuse®, MF-FSML | Tape & Reel (TR) | Active | Polymeric | 8V | 350 mA | 750 mA | 50 A | 10 ms | 80 mOhms | 1 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.065" L x 0.033" W (1.65mm x 0.85mm) | - | 0.028" (0.70mm) | - |

