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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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LR4-260FPTC RESET FUSE 15V 2.6A STRAP |
4,546 | - |
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Datasheet |
Strap | PolySwitch®, LR4 | Bag | Active | Polymeric | 15V | 2.6 A | 5.8 A | 100 A | 5 s | 20 mOhms | 63 mOhms | - | -40°C ~ 85°C | - | - | - | User Defined | 0.866" L x 0.205" W (22.00mm x 5.20mm) | - | 0.039" (1.00mm) | - |
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72R110XUPTC RESET FUSE 72V 1.1A RADIAL |
1,332 | - |
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Datasheet |
Radial, Disc | POLY-FUSE®, 72R | Bulk | Active | Polymeric | 72V | 1.1 A | 2.2 A | 40 A | 8.2 s | 150 mOhms | 380 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.512" Dia x 0.122" T (13.00mm x 3.10mm) | 0.717" (18.20mm) | - | 0.201" (5.10mm) |
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MF-RM040/240-2PTC RESET FUSE 240V 400MA RADIAL |
14,776 | - |
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Datasheet |
Radial, Disc | Multifuse®, MF-RM | Tape & Reel (TR) | Active | Polymeric | 240V (265V Int) | 400 mA | 900 mA | 5.5 A | 24 s | 600 mOhms | 1.9 Ohms | - | -20°C ~ 85°C | - | - | - | Through Hole | 0.453" L x 0.150" W (11.50mm x 3.80mm) | 0.823" (20.90mm) | - | 0.114" (2.90mm) |
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MF-SM013/250V-2PTC RESET FUSE 60V 130MA 2SMD |
9,359 | - |
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Datasheet |
2-SMD | Multifuse®, MF-SM/250V | Tape & Reel (TR) | Active | Polymeric | 60V (250V Int) | 130 mA | - | 3 A | - | 4 Ohms | 16 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.350" L x 0.283" W (8.90mm x 7.20mm) | - | 0.402" (10.20mm) | - |
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TRF250-145T-2PTC RESET FUSE 60V 145MA RADIAL |
1,431 | - |
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Datasheet |
Radial, Disc | PolySwitch®, TRF250 | Tape & Reel (TR) | Active | Polymeric | 60V (250V Int) | 145 mA | 290 mA | 3 A | 1.5 s | 5.4 Ohms | 14 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.181" L x 0.181" W (4.60mm x 4.60mm) | 0.433" (11.00mm) | - | 0.197" (5.00mm) |
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MF-NSML450/12-2PTC RESET FUSE 12V 4.5A 1206 |
7,407 | - |
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Datasheet |
1206 (3216 Metric), Concave | Multifuse®, MF-NSML/X | Tape & Reel (TR) | Active | Polymeric | 12V | 4.5 A | 9 A | 50 A | 2 s | 2 mOhms | 14 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.128" L x 0.063" W (3.25mm x 1.60mm) | - | 0.055" (1.40mm) | - |
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MF-USHT010KX-2PTC RESET FUSE 30V 100MA 1210 |
3,425 | - |
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Datasheet |
1210 (3225 Metric), Concave | Multifuse®, MF-USHT | Tape & Reel (TR) | Active | Polymeric | 30V | 100 mA | 500 mA | 20 A | 1.5 s | 1 Ohms | 7.5 Ohms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Surface Mount | 0.127" L x 0.101" W (3.22mm x 2.58mm) | - | 0.033" (0.85mm) | - |
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MF-NSML380/12-2PTC RESET FUSE 12V 3.8A 1206 |
3,027 | - |
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Datasheet |
1206 (3216 Metric), Concave | Multifuse®, MF-NSML/X | Tape & Reel (TR) | Active | Polymeric | 12V | 3.8 A | 7.6 A | 50 A | 5 s | 2 mOhms | 20 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.128" L x 0.063" W (3.25mm x 1.60mm) | - | 0.055" (1.40mm) | - |
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RGEF800-2PTC RESET FUSE 16V 8A RADIAL |
3,003 | - |
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Datasheet |
Radial, Disc | PolySwitch®, RGEF | Tape & Reel (TR) | Active | Polymeric | 16V | 8 A | 13.6 A | 100 A | 5 s | 5.6 mOhms | 17.5 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.480" L x 0.098" W (12.20mm x 2.50mm) | 0.823" (20.90mm) | - | 0.199" (5.05mm) |
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MF-LR550PTC RESET FUSE 10V 5.5A STRAP |
2,156 | - |
|
Datasheet |
Strap | Multifuse®, MF-LR | Bulk | Active | Polymeric | 10V | 5.5 A | 10.5 A | 100 A | 5 s | 9 mOhms | 22 mOhms | - | -40°C ~ 85°C | - | - | - | User Defined | 1.417" L x 0.283" W (36.00mm x 7.20mm) | - | 0.039" (1.00mm) | - |
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FEMTOSMDC010F/15-2PTC RESET FUSE 15V 100MA 0603 |
3,500 | - |
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Datasheet |
0603 (1608 Metric), Concave | PolySwitch®, femtoSMDC | Tape & Reel (TR) | Active | Polymeric | 15V | 100 mA | 300 mA | 40 A | 100 ms | 2 Ohms | 14 Ohms | - | - | - | - | - | Surface Mount | 0.063" L x 0.032" W (1.60mm x 0.80mm) | - | 0.033" (0.85mm) | - |
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250S130-RBDRPTC RESET FUSE 60V 130MA 2SMD |
4,434 | - |
|
Datasheet |
2-SMD | POLY-FUSE®, 250S | Tape & Reel (TR) | Active | Polymeric | 60V (250V Int) | 130 mA | 260 mA | 3 A | 700 ms | 9 Ohms | 20 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.370" L x 0.291" W (9.40mm x 7.40mm) | - | 0.146" (3.70mm) | - |
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2920L110/60MR-APTC RESET FUSE 60V 1.1A 2920 |
2,012 | - |
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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 | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.079" (2.00mm) | - |
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60R110XUPTC RESET FUSE 60V 1.1A RADIAL |
13,781 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 60R | Bulk | Active | Polymeric | 60V | 1.1 A | 2.2 A | 40 A | 8.2 s | 150 mOhms | 380 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.512" Dia x 0.122" T (13.00mm x 3.10mm) | 0.717" (18.20mm) | - | 0.201" (5.10mm) |
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PTSLR08056V110PTC RESET FUSE 6V 1.1A 0805 |
9,341 | - |
|
Datasheet |
0805 (2012 Metric), Concave | PTSLR0805 | Tape & Reel (TR) | Active | Polymeric | 6V | 1.1 A | 1.8 A | 50 A | 300 ms | 30 mOhms | 130 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.083" L x 0.053" W (2.10mm x 1.35mm) | - | 0.028" (0.70mm) | - |
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16R500GPRPTC RESET FUSE 16V 5A RADIAL |
5,194 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 16R | Cut Tape (CT) | Active | Polymeric | 16V | 5 A | 8.5 A | 100 A | 2 s | 15 mOhms | 34 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.409" L x 0.118" W (10.40mm x 3.00mm) | 0.563" (14.30mm) | - | 0.201" (5.10mm) |
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B59880C0130A070PTC RESET FUSE 265V 55MA RADIAL |
966 | - |
|
Datasheet |
Radial, Disc | - | Bulk | Active | Ceramic | 265V | 55 mA | 90 mA | 200 mA | - | - | - | 160 Ohms | 0°C ~ 60°C | - | - | - | Through Hole | 0.157" Dia x 0.197" T (4.00mm x 5.00mm) | 0.295" (7.50mm) | - | 0.197" (5.00mm) |
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72R135XMRPTC RESET FUSE 72V 1.35A RADIAL |
895 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 72R | Cut Tape (CT) | Active | Polymeric | 72V | 1.35 A | 2.7 A | 40 A | 9.6 s | 120 mOhms | 300 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.535" Dia x 0.122" T (13.58mm x 3.10mm) | 0.780" (19.80mm) | - | 0.201" (5.10mm) |
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MF-NSML260/12-2PTC RESET FUSE 12V 2.6A 1206 |
16,674 | - |
|
Datasheet |
1206 (3216 Metric), Concave | Multifuse®, MF-NSML/X | Tape & Reel (TR) | Active | Polymeric | 12V | 2.6 A | 5.2 A | 50 A | 5 s | 4 mOhms | 30 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.128" L x 0.063" W (3.25mm x 1.60mm) | - | 0.039" (1.00mm) | - |
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MF-R600-2PTC RESET FUSE 30V 6A RADIAL |
884 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-R | Tape & Reel (TR) | Active | Polymeric | 30V | 6 A | 12 A | 40 A | 16 s | 5 mOhms | 40 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.760" L x 0.118" W (19.30mm x 3.00mm) | 1.256" (31.90mm) | - | 0.402" (10.20mm) |

