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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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MF-PSML400/8-2PTC RESET FUSE 8V 4A 0805 |
1,717 | - |
|
Datasheet |
0805 (2012 Metric), Concave | Multifuse®, MF-PSML/X | Tape & Reel (TR) | Active | Polymeric | 8V | 4 A | 8 A | 50 A | 12.5 s | 1 mOhms | 14 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.085" L x 0.053" W (2.15mm x 1.35mm) | - | 0.055" (1.40mm) | - |
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B59770B0120A070PTC RESET FUSE 420V RADIAL DISC |
930 | - |
|
Datasheet |
Radial, Disc | B59770 | Bulk | Active | Ceramic | 420V | - | 127 mA | 1.4 A | 4 s | - | - | 70 Ohms | 0°C ~ 60°C | - | - | - | Through Hole | 0.335" Dia x 0.276" T (8.50mm x 7.00mm) | 0.197" (5.00mm) | - | 0.197" (5.00mm) |
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B59860C0080A070PTC RESET FUSE 265V 90MA RADIAL |
990 | - |
|
Datasheet |
Radial, Disc | - | Bulk | Active | Ceramic | 265V | 90 mA | 180 mA | 1.5 A | - | - | - | 15 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) |
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PTR016V1400-TR1PTC RESET FUSE 16V 14A RADIAL |
742 | - |
|
Datasheet |
Radial, Disc | PTR016V | Tape & Reel (TR) | Active | Polymeric | 16V | 14 A | 23.8 A | 100 A | 9 s | 2 mOhms | 7 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.925" L x 0.122" W (23.50mm x 3.10mm) | 1.181" (30.00mm) | - | 0.394" (10.00mm) |
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B59850C0080A070PTC RESET FUSE 265V 110MA RADIAL |
943 | - |
|
Datasheet |
Radial, Disc | - | Bulk | Active | Ceramic | 265V | 110 mA | 230 mA | 2.2 A | - | - | - | 10 Ohms | 0°C ~ 60°C | - | - | - | Through Hole | 0.532" Dia x 0.197" T (13.50mm x 5.00mm) | 0.669" (17.00mm) | - | 0.197" (5.00mm) |
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AHRL1300PTC RESET FUSE 13A 16V RAD |
240 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, AHRL | Bulk | Active | Polymeric | 16V | 13 A | 26 A | 100 A | 14 s | 3.3 mOhms | 5.3 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.685" L x 0.142" W (17.40mm x 3.60mm) | 0.976" (24.80mm) | - | 0.400" (10.15mm) |
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PFRA.400.2PTC RESET FUSE 30V 4A RADIAL |
1,195 | - |
|
Datasheet |
Radial, Disc | PFRA | Tape & Reel (TR) | Active | Polymeric | 30V | 4 A | 8 A | 40 A | 12.7 s | 10 mOhms | 50 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.567" L x 0.118" W (14.40mm x 3.00mm) | 0.976" (24.80mm) | - | 0.201" (5.10mm) |
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YQS5750PTOPTC RESET FUSE 25V RADIAL DISC |
995 | - |
|
Datasheet |
Radial, Disc | PTO | Bulk | Active | Ceramic | 25V | - | - | - | - | - | - | 50 Ohms | 10°C ~ 55°C | - | - | - | Through Hole | 0.350" Dia x 0.150" T (8.90mm x 3.80mm) | 0.413" (10.50mm) | - | 0.197" (5.00mm) |
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MF-PSML380/8-2PTC RESET FUSE 8V 3.8A 0805 |
7,260 | - |
|
Datasheet |
0805 (2012 Metric), Concave | Multifuse®, MF-PSML/X | Tape & Reel (TR) | Active | Polymeric | 8V | 3.8 A | 7.6 A | 50 A | 5 s | 1 mOhms | 16 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.085" L x 0.053" W (2.15mm x 1.35mm) | - | 0.055" (1.40mm) | - |
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RHEF1500-2PTC RESET FUSE 16V 15A RADIAL |
770 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RHEF | Tape & Reel (TR) | Active | Polymeric | 16V | 15 A | 28 A | 100 A | 20 s | 3.2 mOhms | 9.2 mOhms | - | -40°C ~ 125°C | - | - | - | Through Hole | 0.925" L x 0.142" W (23.50mm x 3.60mm) | 1.130" (28.70mm) | - | 0.400" (10.15mm) |
|
MF-RG1000-2PTC RESET FUSE 16V 10A RADIAL |
2,759 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RG | Tape & Reel (TR) | Active | Polymeric | 16V | 10 A | 17 A | 100 A | 6 s | 4 mOhms | 10.2 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.650" L x 0.118" W (16.50mm x 3.00mm) | 0.854" (21.70mm) | - | 0.201" (5.10mm) |
|
MF-RG1000-0PTC RESET FUSE 16V 10A RADIAL |
2,723 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RG | Bag | Active | Polymeric | 16V | 10 A | 17 A | 100 A | 6 s | 4 mOhms | 10.2 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.650" L x 0.118" W (16.50mm x 3.00mm) | 0.854" (21.70mm) | - | 0.201" (5.10mm) |
|
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MF-RHT1300-2PTC RESET FUSE 16V 13A RADIAL |
187 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RHT | Tape & Reel (TR) | Active | Polymeric | 16V | 13 A | 24 A | 100 A | 13 s | 4.1 mOhms | 10 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.925" L x 0.142" W (23.50mm x 3.60mm) | 1.130" (28.70mm) | - | 0.215" (5.45mm) |
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AHRL1400PTC RESET FUSE 14A 16V RAD |
790 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, AHRL | Bulk | Active | Polymeric | 16V | 14 A | 28 A | 100 A | 16 s | 3.1 mOhms | 4.8 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.685" L x 0.142" W (17.40mm x 3.60mm) | 1.039" (26.40mm) | - | 0.400" (10.15mm) |
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YQS8120PTC RESET FUSE 420V 21MA RADIAL |
730 | - |
|
Datasheet |
Radial, Disc | YP | Bulk | Active | Ceramic | 420V | 21 mA | 39 mA | 200 mA | - | - | - | 600 Ohms | 0°C ~ 60°C | - | - | - | Through Hole | 0.256" Dia x 0.197" T (6.50mm x 5.00mm) | 0.472" (12.00mm) | - | 0.236" (6.00mm) |
|
1206L350SLWRPTC RESET FUSE 6V 3.5A 1206 |
1,561 | - |
|
Datasheet |
1206 (3216 Metric), Concave | POLY-FUSE®, LoRho | Tape & Reel (TR) | Active | Polymeric | 6V | 3.5 A | 7 A | 50 A | 2 s | 3 mOhms | 18 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.128" L x 0.065" W (3.25mm x 1.65mm) | - | 0.030" (0.75mm) | - |
|
1812L300SLPRPTC RESET FUSE 6V 3A 1812 |
1,311 | - |
|
Datasheet |
1812 (4532 Metric), Concave | POLY-FUSE®, LoRho | Tape & Reel (TR) | Active | Polymeric | 6V | 3 A | 7 A | 50 A | 5 s | 3 mOhms | 21 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.179" L x 0.128" W (4.55mm x 3.24mm) | - | 0.030" (0.75mm) | - |
|
|
MF-LR900/20-0PTC RESET FUSE 20V 9A STRAP |
578 | - |
|
Datasheet |
Strap | Multifuse®, MF-LR | Bulk | Active | Polymeric | 20V | 9 A | 16.7 A | 100 A | 5 s | 6 mOhms | 14 mOhms | - | -40°C ~ 85°C | - | - | - | User Defined | 1.831" L x 0.323" W (46.50mm x 8.20mm) | - | 0.051" (1.30mm) | - |
|
YS5869PTFPTC RESET FUSE 120V 60MA RADIAL |
1,476 | - |
|
Datasheet |
Radial, Disc | PTF | Bulk | Active | Ceramic | 120V | 60 mA | 110 mA | - | - | - | - | 100 Ohms | 10°C ~ 55°C | - | - | - | Through Hole | 0.402" Dia x 0.122" T (10.20mm x 3.10mm) | 0.402" (10.20mm) | - | 0.252" (6.40mm) |
|
0805L350SLYRPTC RESET FUSE 3.5A 6V 0805 |
1,427 | - |
|
Datasheet |
0805 (2012 Metric), Concave | POLY-FUSE®, LoRho | Tape & Reel (TR) | Active | Polymeric | 6V | 3.5 A | 7 A | 50 A | 5 s | 3 mOhms | 25 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.083" L x 0.053" W (2.10mm x 1.35mm) | - | 0.055" (1.40mm) | - |

