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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
PTR016V1500-TRPTC RESET FUSE 16V 15A RADIAL |
700 | - |
|
Datasheet |
Radial, Disc | PTR016V | Tape & Reel (TR) | Active | Polymeric | 16V | 15 A | 25.5 A | 100 A | 10 s | 2 mOhms | 7 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.989" L x 0.122" W (25.10mm x 3.10mm) | 1.142" (29.00mm) | - | 0.394" (10.00mm) |
|
RKEF500-2PTC RESET FUSE 60V 5A RADIAL |
116 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RKEF | Tape & Reel (TR) | Active | Polymeric | 60V | 5 A | 10 A | 40 A | 28 s | 12 mOhms | 50 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 1.140" L x 0.120" W (29.00mm x 3.00mm) | 1.142" (29.00mm) | - | 0.400" (10.15mm) |
|
1210L005/90WR1210L |
3,573 | - |
|
Datasheet |
1210 (3225 Metric), Concave | PolySwitch® 1210L | Tape & Reel (TR) | Active | Polymeric | 90V | 50 mA | 150 mA | 10 A | 200 ms | 3.6 Ohms | 50 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.101" W (3.22mm x 2.58mm) | - | 0.049" (1.25mm) | - |
|
|
30R500UMRPTC RESET FUSE 30V 5A RADIAL |
3,097 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 30R | Cut Tape (CT) | Active | Polymeric | 30V | 5 A | 10 A | 40 A | 14.5 s | 10 mOhms | 50 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.551" L x 0.118" W (14.00mm x 3.00mm) | 1.008" (25.60mm) | - | 0.402" (10.20mm) |
|
PTCTL7MR100SBEPTC RESET FUSE 600V 175MA RADIAL |
2,684 | - |
|
Datasheet |
Radial, Disc | - | Bulk | Active | Ceramic | 600V | 175 mA | 400 mA | 1 A | 7 s | - | - | 10 Ohms | 0°C ~ 70°C | - | - | - | Through Hole | 0.512" Dia x 0.217" T (13.00mm x 5.50mm) | 0.709" (18.00mm) | - | 0.197" (5.00mm) |
|
|
MF-RHT750-0PTC RESET FUSE 16V 7.5A RADIAL |
2,800 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RHT | Bulk | Active | Polymeric | 16V | 7.5 A | 13.1 A | 100 A | 7 s | 9.4 mOhms | 22 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.551" L x 0.118" W (14.00mm x 3.00mm) | 0.925" (23.50mm) | - | 0.114" (2.90mm) |
|
RKEF500K-2PTC RESET FUSE 60V 5A RADIAL |
6,522 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RKEF | Tape & Reel (TR) | Active | Polymeric | 60V | 5 A | 10 A | 40 A | 28 s | 12 mOhms | 50 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 1.140" L x 0.120" W (29.00mm x 3.00mm) | 1.142" (29.00mm) | - | 0.400" (10.15mm) |
|
MF-LR730/20-0PTC RESET FUSE 20V 7.3A STRAP |
3,449 | - |
|
Datasheet |
Strap | Multifuse®, MF-LR | Bulk | Active | Polymeric | 20V | 7.3 A | 14.1 A | 100 A | 5 s | 6 mOhms | 15 mOhms | - | -40°C ~ 85°C | - | - | - | User Defined | 1.106" L x 0.559" W (28.10mm x 14.20mm) | - | 0.039" (1.00mm) | - |
|
B59870C0160A070PTC RESET FUSE 160V 125MA RADIAL |
1,141 | - |
|
Datasheet |
Radial, Disc | - | Bulk | Active | Ceramic | 160V | 125 mA | 250 mA | 1 A | - | - | - | 25 Ohms | 0°C ~ 60°C | - | - | - | Through Hole | 0.354" Dia x 0.197" T (9.00mm x 5.00mm) | 0.492" (12.50mm) | - | 0.197" (5.00mm) |
|
MF-ASML020/6-2PTC RESET FUSE 6V 200MA 0402 |
10,279 | - |
|
Datasheet |
0402 (1005 Metric), Concave | Multifuse®, MF-ASML/X | Tape & Reel (TR) | Active | Polymeric | 6V | 200 mA | 500 mA | 50 A | 1 s | 100 mOhms | 1.6 Ohms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.039" L x 0.020" W (1.00mm x 0.50mm) | - | 0.024" (0.60mm) | - |
|
MF-PSML300/12-2PTC RESET FUSE 12V 3A 0805 |
19,725 | - |
|
Datasheet |
0805 (2012 Metric), Concave | Multifuse®, MF-PSML/X | Tape & Reel (TR) | Active | Polymeric | 12V | 3 A | 6 A | 50 A | 5 s | 3 mOhms | 20 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.085" L x 0.053" W (2.15mm x 1.35mm) | - | 0.055" (1.40mm) | - |
|
B59215P1120A062THERMISTOR PTC 25 OHM 25% 2SMD |
8,732 | - |
|
Datasheet |
2-SMD | B59215 | Tape & Reel (TR) | Active | Ceramic | 80V | 100 mA | 210 mA | 1 A | - | 15 Ohms | 25 Ohms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Surface Mount | 0.315" L x 0.248" W (8.00mm x 6.30mm) | - | 0.150" (3.80mm) | - |
|
|
B59965C0120A070PTC RESET FUSE 30V 600MA RADIAL |
1,914 | - |
|
Datasheet |
Radial, Disc | B59965 | Bulk | Active | Ceramic | 30V | 600 mA | 1.2 A | 4.3 A | - | - | - | 1.2 Ohms | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.433" Dia x 0.138" T (11.00mm x 3.50mm) | 0.571" (14.50mm) | - | 0.197" (5.00mm) |
|
MF-PSML200/12-2PTC RESET FUSE 12V 2A 0805 |
1,431 | - |
|
Datasheet |
0805 (2012 Metric), Concave | Multifuse®, MF-PSML/X | Tape & Reel (TR) | Active | Polymeric | 12V | 2 A | 4 A | 50 A | 2 s | 5 mOhms | 50 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.085" L x 0.053" W (2.15mm x 1.35mm) | - | 0.055" (1.40mm) | - |
|
|
B59975C0120A070PTC RESET FUSE 30V 450MA RADIAL |
9,587 | - |
|
Datasheet |
Radial, Disc | B59975 | Bulk | Active | Ceramic | 30V | 450 mA | 900 mA | 3 A | - | - | - | 1.8 Ohms | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.354" Dia x 0.138" T (9.00mm x 3.50mm) | 0.492" (12.50mm) | - | 0.197" (5.00mm) |
|
B59885C0120A070PTC RESET FUSE 550V 15MA RADIAL |
3,237 | - |
|
Datasheet |
Radial, Disc | - | Bulk | Active | Ceramic | 550V | 15 mA | 30 mA | 100 mA | - | - | - | 1.2 kOhms | 0°C ~ 60°C | - | - | - | Through Hole | 0.256" Dia x 0.197" T (6.50mm x 5.00mm) | 0.394" (10.00mm) | - | 0.197" (5.00mm) |
|
MF-ASML050/6-2PTC RESET FUSE 6V 500MA 0402 |
22,663 | - |
|
Datasheet |
0402 (1005 Metric), Concave | Multifuse®, MF-ASML/X | Tape & Reel (TR) | Active | Polymeric | 6V | 500 mA | 1 A | 50 A | 100 ms | 500 mOhms | 500 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.039" L x 0.020" W (1.00mm x 0.50mm) | - | 0.024" (0.60mm) | - |
|
MF-ASML035/6-2PTC RESET FUSE 6V 350MA 0402 |
8,645 | - |
|
Datasheet |
0402 (1005 Metric), Concave | Multifuse®, MF-ASML/X | Tape & Reel (TR) | Active | Polymeric | 6V | 350 mA | 700 mA | 50 A | 100 ms | 50 mOhms | 850 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.039" L x 0.020" W (1.00mm x 0.50mm) | - | 0.024" (0.60mm) | - |
|
|
0ZRM0375FF1APTC RESET FUSE 120V 3.75A RADIAL |
4,550 | - |
|
Datasheet |
Radial, Disc | 0ZRM | Box | Active | Polymeric | 120V | 3.75 A | 7.5 A | 20 A | 24 s | 30 mOhms | 80 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 1.161" Dia x 0.161" T (29.50mm x 4.10mm) | 1.339" (34.00mm) | - | 0.402" (10.20mm) |
|
0805L400SLWRPTC RESET FUSE 4.0A 6V 0805 |
40,340 | - |
|
Datasheet |
0805 (2012 Metric), Concave | POLY-FUSE®, LoRho | Tape & Reel (TR) | Active | Polymeric | 6V | 4 A | 9 A | 50 A | 2 s | 3 mOhms | 18 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.083" L x 0.053" W (2.10mm x 1.35mm) | - | 0.055" (1.40mm) | - |

