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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
0ZRE0033FF1APTC RESET FUSE 240V 330MA RADIAL |
1,932 | - |
|
Datasheet |
Radial, Disc | 0ZRE | Box | Active | Polymeric | 240V | 330 mA | 740 mA | 6 A | 21 s | 830 mOhms | 2.6 Ohms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.449" L x 0.150" W (11.40mm x 3.80mm) | 0.650" (16.50mm) | - | 0.201" (5.10mm) |
|
RGEF500PTC RESET FUSE 16V 5A RADIAL |
1,901 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RGEF | Bag | 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) |
|
0ZCN0075FF2APTC RESET FUSE 60V 750MA 2016 |
49,904 | - |
|
Datasheet |
2016 (5041 Metric), Concave | 0ZCN | Tape & Reel (TR) | Active | Polymeric | 60V | 750 mA | 1.5 A | 100 A | 500 ms | 130 mOhms | 900 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.200" L x 0.160" W (5.08mm x 4.07mm) | - | 0.067" (1.70mm) | - |
|
RKEF250PTC RESET FUSE 60V 2.5A RADIAL |
20,648 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RKEF | Bag | Active | Polymeric | 60V | 2.5 A | 5 A | 40 A | 15.6 s | 40 mOhms | 140 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.512" L x 0.150" W (13.00mm x 3.81mm) | 0.740" (18.80mm) | - | 0.200" (5.08mm) |
|
0ZCN0030FF2CPTC RESET FUSE 60V 300MA 2016 |
8,239 | - |
|
Datasheet |
2016 (5041 Metric), Concave | 0ZCN | Tape & Reel (TR) | Active | Polymeric | 60V | 300 mA | 600 mA | 100 A | 3 s | 500 mOhms | 2.3 Ohms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.200" L x 0.160" W (5.08mm x 4.07mm) | - | 0.045" (1.15mm) | - |
|
2920L075DRPTC RESET FUSE 30V 750MA 2920 |
6,995 | - |
|
Datasheet |
2920 (7351 Metric), Concave | POLY-FUSE®, 2920L | Tape & Reel (TR) | Active | Polymeric | 30V | 750 mA | 1.5 A | 40 A | 300 ms | 350 mOhms | 1 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.289" L x 0.202" W (7.35mm x 5.12mm) | - | 0.049" (1.25mm) | - |
|
|
RHEF050-2PTC RESET FUSE 30V 500MA RADIAL |
5,631 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RHEF | Tape & Reel (TR) | Active | Polymeric | 30V | 500 mA | 920 mA | 40 A | 2.5 s | 480 mOhms | 1.1 Ohms | - | -40°C ~ 125°C | - | - | - | Through Hole | 0.291" Dia x 0.118" T (7.40mm x 3.00mm) | 0.500" (12.70mm) | - | 0.199" (5.05mm) |
|
|
SRP175FPTC RESET FUSE 15V 1.75A STRAP |
2,649 | - |
|
Datasheet |
Strap | PolySwitch®, SRP | Bulk | Active | Polymeric | 15V | 1.75 A | 3.8 A | 100 A | 5 s | 50 mOhms | 120 mOhms | - | -40°C ~ 85°C | - | - | - | User Defined | 0.866" L x 0.199" W (22.00mm x 5.05mm) | - | 0.039" (1.00mm) | - |
|
LVR008NSPTC RESET FUSE 240V 80MA RADIAL |
2,256 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, LVR | Bag | Active | Polymeric | 240V (265V Int) | 80 mA | 190 mA | 1.2 A | 10 s | 7.4 Ohms | 26 Ohms | - | -20°C ~ 85°C | - | - | - | Through Hole | 0.283" Dia x 0.181" T (7.20mm x 4.60mm) | 0.402" (10.20mm) | - | 0.200" (5.08mm) |
|
LVR008NKPTC RESET FUSE 240V 80MA RADIAL |
2,210 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, LVR | Bag | Active | Polymeric | 240V (265V Int) | 80 mA | 190 mA | 1.2 A | 10 s | 7.4 Ohms | 26 Ohms | - | -20°C ~ 85°C | - | - | - | Through Hole | 0.283" Dia x 0.181" T (7.20mm x 4.60mm) | 0.488" (12.40mm) | - | 0.200" (5.08mm) |
|
SMD125F-2PTC RESET FUSE 15V 1.25A 2SMD |
34,570 | - |
|
Datasheet |
2-SMD | PolySwitch®, SMD | Tape & Reel (TR) | Active | Polymeric | 15V | 1.25 A | 2.5 A | 40 A | 2 s | 70 mOhms | - | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.118" (3.00mm) | - |
|
0ZRB0600FF1APTC RESET FUSE 30V 6A RADIAL |
15,831 | - |
|
Datasheet |
Radial, Disc | 0ZRB | Box | Active | Polymeric | 30V | 6 A | 12 A | 40 A | 16 s | 5 mOhms | 40 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.650" L x 0.118" W (16.50mm x 3.00mm) | 0.980" (24.90mm) | - | 0.402" (10.20mm) |
|
CMF-RL10-0PTC RESET FUSE 220V 150MA RADIAL |
9,658 | - |
|
Datasheet |
Radial, Disc | CMF-RL | Bulk | Active | Ceramic | 220V (600V Int) | 150 mA | 300 mA | 3 A | 450 ms | - | - | 10 Ohms | -40°C ~ 125°C | - | - | - | Through Hole | 0.374" L x 0.177" W (9.50mm x 4.50mm) | 0.532" (13.50mm) | - | 0.197" (5.00mm) |
|
MF-RX250/72-0PTC RESET FUSE 72V 2.5A RADIAL |
7,992 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RX/72 | Bulk | Active | Polymeric | 72V | 2.5 A | 5 A | 40 A | 15.6 s | 50 mOhms | 130 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.839" L x 0.122" W (21.30mm x 3.10mm) | 1.039" (26.40mm) | - | 0.402" (10.20mm) |
|
MF-R600PTC RESET FUSE 30V 6A RADIAL |
6,498 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-R | Bulk | 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) |
|
MF-USMF075-2PTC RESET FUSE 6V 750MA 1210 |
5,649 | - |
|
Datasheet |
1210 (3225 Metric), Concave | Multifuse®, MF-USMF | Tape & Reel (TR) | Active | Polymeric | 6V | 750 mA | 1.5 A | 40 A | 100 ms | 70 mOhms | 450 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.033" (0.85mm) | - |
|
MF-MSMF125-2PTC RESET FUSE 6V 1.25A 1812 |
2,545 | - |
|
Datasheet |
1812 (4532 Metric), Concave | Multifuse®, MF-MSMF | Tape & Reel (TR) | Active | Polymeric | 6V | 1.25 A | 2.5 A | 100 A | 400 ms | 35 mOhms | 140 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.179" L x 0.128" W (4.55mm x 3.24mm) | - | 0.033" (0.85mm) | - |
|
SMD300F/15-2PTC RESET FUSE 15V 3A 2SMD |
14,992 | - |
|
Datasheet |
2-SMD | PolySwitch®, SMD | Tape & Reel (TR) | Active | Polymeric | 15V | 3 A | 6 A | 40 A | 35 s | 15 mOhms | 50 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.118" (3.00mm) | - |
|
2920L125PRPTC RESET FUSE 15V 1.25A 2920 |
9,566 | - |
|
Datasheet |
2920 (7351 Metric), Concave | POLY-FUSE®, 2920L | Tape & Reel (TR) | Active | Polymeric | 15V | 1.25 A | 2.5 A | 40 A | 2 s | 70 mOhms | 250 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.289" L x 0.202" W (7.35mm x 5.12mm) | - | 0.049" (1.25mm) | - |
|
RGEF600PTC RESET FUSE 16V 6A RADIAL |
4,232 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RGEF | Bag | Active | Polymeric | 16V | 6 A | 10.2 A | 100 A | 3.3 s | 10 mOhms | 28 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.402" L x 0.098" W (10.20mm x 2.50mm) | 0.673" (17.10mm) | - | 0.199" (5.05mm) |

