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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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LVR025K-2PTC RESET FUSE 240V 250MA RADIAL |
3,615 | - |
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Datasheet |
Radial, Disc | PolySwitch®, LVR | Tape & Reel (TR) | Active | Polymeric | 240V (265V Int) | 250 mA | 560 mA | 3.5 A | 18.5 s | 1.3 Ohms | 3.8 Ohms | - | -20°C ~ 85°C | - | - | - | Through Hole | 0.378" L x 0.150" W (9.60mm x 3.80mm) | 0.740" (18.80mm) | - | 0.200" (5.08mm) |
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0ZSA0200FF1EPTC RESET FUSE 30V 2A STRAP |
2,672 | - |
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Datasheet |
Strap | 0ZSA | 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) | - |
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MF-RHT100-2PTC RESET FUSE 30V 1A RADIAL |
1,886 | - |
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Datasheet |
Radial, Disc | Multifuse®, MF-RHT | Tape & Reel (TR) | Active | Polymeric | 30V | 1 A | 1.8 A | 40 A | 5.2 s | 180 mOhms | 430 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.382" L x 0.118" W (9.70mm x 3.00mm) | 0.535" (13.60mm) | - | 0.201" (5.10mm) |
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0ZRS0100FF1EPTC RESET FUSE 32V 1A RADIAL |
1,550 | - |
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Datasheet |
Radial, Disc | 0ZRS | Bulk | Active | Ceramic | 32V | 1 A | 1.9 A | 100 A | 6.2 s | 150 mOhms | 430 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.382" Dia x 0.118" T (9.70mm x 3.00mm) | 0.535" (13.60mm) | - | 0.201" (5.10mm) |
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2920L030DR-APTC RESET FUSE 60V 300MA 2920 |
1,094 | - |
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Datasheet |
2920 (7351 Metric), Concave | POLY-FUSE®, 2920L | Tape & Reel (TR) | Active | Polymeric | 60V | 300 mA | 600 mA | 10 A | 3 s | 1.2 Ohms | 4.8 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.049" (1.25mm) | - |
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16R400GPRPTC RESET FUSE 16V 4A RADIAL |
6,406 | - |
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Datasheet |
Radial, Disc | POLY-FUSE®, 16R | Cut Tape (CT) | Active | Polymeric | 16V | 4 A | 6.8 A | 100 A | 1.7 s | 21 mOhms | 60 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.350" L x 0.118" W (8.90mm x 3.00mm) | 0.504" (12.80mm) | - | 0.201" (5.10mm) |
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250R080ZRPTC RESET FUSE 60V 80MA RADIAL |
4,741 | - |
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Datasheet |
Radial, Disc | POLY-FUSE®, 250R | Cut Tape (CT) | Active | Polymeric | 60V (250V Int) | 80 mA | 160 mA | 3 A | 4 s | 14 Ohms | 33 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.228" Dia x 0.181" T (5.80mm x 4.60mm) | 0.390" (9.90mm) | - | 0.201" (5.10mm) |
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MF-NSML150/6-2PTC RESET FUSE 6V 1.5A 1206 |
8,915 | - |
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Datasheet |
1206 (3216 Metric), Concave | Multifuse®, MF-NSML/X | Tape & Reel (TR) | Active | Polymeric | 6V | 1.5 A | 3 A | 50 A | 5 s | 10 mOhms | 65 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.128" L x 0.063" W (3.25mm x 1.60mm) | - | 0.028" (0.70mm) | - |
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MICROSMDCH010F-02PTC RESET FUSE 30V 100MA 1210 |
8,315 | - |
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Datasheet |
1210 (3225 Metric), Concave | PolySwitch®, microSMD | Tape & Reel (TR) | Active | Polymeric | 30V | 100 mA | 350 mA | 10 A | 100 ms | 1.2 Ohms | 11 Ohms | - | -40°C ~ 125°C | - | - | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.038" (0.97mm) | - |
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PTSLR12106V300PTC RESET FUSE 6V 3A 1210 |
2,530 | - |
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Datasheet |
1210 (3225 Metric), Concave | PTSLR1210 | Tape & Reel (TR) | Active | Polymeric | 6V | 3 A | 6 A | 50 A | 2 s | 3 mOhms | 20 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.101" W (3.22mm x 2.58mm) | - | 0.047" (1.20mm) | - |
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B59990C0120A051PTC RESET FUSE 80V 50MA RADIAL |
13,711 | - |
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Datasheet |
Radial, Disc | B59990 | Tape & Reel (TR) | Active | Ceramic | 80V | 50 mA | 100 mA | 700 mA | - | - | - | 55 Ohms | -40°C ~ 125°C | - | - | - | Through Hole | 0.157" Dia x 0.138" T (4.00mm x 3.50mm) | 0.295" (7.50mm) | - | 0.197" (5.00mm) |
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LVR033K-2PTC RESET FUSE 240V 330MA RADIAL |
4,213 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, LVR | Tape & Reel (TR) | Active | Polymeric | 240V (265V Int) | 330 mA | 740 mA | 4.5 A | 21 s | 770 mOhms | 2.6 Ohms | - | -20°C ~ 85°C | - | - | - | Through Hole | 0.449" L x 0.150" W (11.40mm x 3.80mm) | 0.748" (19.00mm) | - | 0.200" (5.08mm) |
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PTSLR08056V175PTC RESET FUSE 6V 1.75A 0805 |
3,266 | - |
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Datasheet |
0805 (2012 Metric), Concave | PTSLR0805 | Tape & Reel (TR) | Active | Polymeric | 6V | 1.75 A | 3.5 A | 50 A | 600 ms | 5 mOhms | 55 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.083" L x 0.053" W (2.10mm x 1.35mm) | - | 0.035" (0.88mm) | - |
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250R180MRPTC RESET FUSE 60V 180MA RADIAL |
2,867 | - |
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Datasheet |
Radial, Disc | POLY-FUSE®, 250R | Cut Tape (CT) | Active | Polymeric | 60V (250V Int) | 180 mA | 650 mA | 10 A | 20 s | 800 mOhms | 4 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.374" Dia x 0.181" T (9.50mm x 4.60mm) | 0.472" (12.00mm) | - | 0.201" (5.10mm) |
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250S130VZRPTC RESET FUSE 60V 130MA 2SMD |
1,513 | - |
|
Datasheet |
2-SMD | POLY-FUSE®, 250S | Tape & Reel (TR) | Active | Polymeric | 60V (250V Int) | 130 mA | 260 mA | 3 A | 2 s | 4 Ohms | 20 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.240" L x 0.272" W (6.10mm x 6.90mm) | - | 0.126" (3.20mm) | - |
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TRF250-120T-2PTC RESET FUSE 60V 120MA RADIAL |
1,489 | - |
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Datasheet |
Radial, Disc | PolySwitch®, TRF250 | Tape & Reel (TR) | Active | Polymeric | 60V (250V Int) | 120 mA | 240 mA | 3 A | 1.2 s | 7 Ohms | 16 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.256" L x 0.181" W (6.50mm x 4.60mm) | 0.433" (11.00mm) | - | 0.197" (5.00mm) |
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FEMTOASMDC008F-2PTC RESET FUSE 12V 80MA 0603 |
39,281 | - |
|
Datasheet |
0603 (1608 Metric) | PolySwitch®, femtoASMD | Tape & Reel (TR) | Active | Polymeric | 12V | 80 mA | 200 mA | 10 A | 100 ms | 2.8 Ohms | 14 Ohms | - | - | Automotive | AEC-Q200 | - | Surface Mount | 0.063" L x 0.032" W (1.60mm x 0.80mm) | - | 0.033" (0.85mm) | - |
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ASMDC075F-2PTC RESET FUSE 33V 750MA 2SMD |
9,148 | - |
|
Datasheet |
2-SMD | PolySwitch®, ASMD | Tape & Reel (TR) | Active | Polymeric | 33V | 750 mA | 1.5 A | 40 A | 1 s | 100 mOhms | 610 mOhms | - | - | Automotive | AEC-Q200 | - | Surface Mount | 0.295" L x 0.201" W (7.50mm x 5.10mm) | - | 0.035" (0.90mm) | - |
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MF-RHT100-0PTC RESET FUSE 30V 1A RADIAL |
2,232 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RHT | Bag | Active | Polymeric | 30V | 1 A | 1.8 A | 40 A | 5.2 s | 180 mOhms | 430 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.382" L x 0.118" W (9.70mm x 3.00mm) | 0.535" (13.60mm) | - | 0.201" (5.10mm) |
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RHEF750-2PTC RESET FUSE 16V 7.5A RADIAL |
5,539 | - |
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Datasheet |
Radial, Disc | PolySwitch®, RHEF | Tape & Reel (TR) | Active | Polymeric | 16V | 7.5 A | 13.1 A | 100 A | 7 s | 9.4 mOhms | 22 mOhms | - | -40°C ~ 125°C | - | - | - | Through Hole | 0.551" L x 0.118" W (14.00mm x 3.00mm) | 0.925" (23.50mm) | - | 0.199" (5.05mm) |

