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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
PTR030V0700-TRPTC RESET FUSE 30V 7A RADIAL |
7,243 | - |
|
Datasheet |
Radial, Disc | PTR030V | Tape & Reel (TR) | Active | Polymeric | 30V | 7 A | 14 A | 100 A | 17.5 s | 5 mOhms | 30 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.752" L x 0.118" W (19.10mm x 3.00mm) | 1.051" (26.70mm) | - | 0.394" (10.00mm) |
|
RUSBF075-APPTC RESET FUSE 6V 750MA RADIAL |
2,000 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RUSBF | Cut Tape (CT) | Active | Polymeric | 6V | 750 mA | 1.3 A | 40 A | 400 ms | 110 mOhms | 230 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.272" Dia x 0.122" T (6.90mm x 3.10mm) | 0.449" (11.40mm) | - | 0.201" (5.10mm) |
|
1206L025/24YRPTC RESET FUSE 24V 250MA 1206 |
3,255 | - |
|
Datasheet |
1206 (3216 Metric), Concave | POLY-FUSE®, 1206L | Tape & Reel (TR) | Active | Polymeric | 24V | 250 mA | 550 mA | 100 A | 80 ms | 550 mOhms | 2.3 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.126" L x 0.065" W (3.20mm x 1.65mm) | - | 0.039" (1.00mm) | - |
|
RXEF090S-2PTC RESET FUSE 72V 900MA RADIAL |
3,000 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RXEF | Tape & Reel (TR) | Active | Polymeric | 72V | 900 mA | 1.8 A | 40 A | 7.2 s | 200 mOhms | 470 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.441" L x 0.118" W (11.20mm x 3.00mm) | 0.622" (15.80mm) | - | 0.199" (5.05mm) |
|
RUSBF155-APPTC RESET FUSE 6V 1.55A RADIAL |
1,755 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RUSBF | Cut Tape (CT) | Active | Polymeric | 6V | 1.55 A | 2.65 A | 40 A | 2.2 s | 40 mOhms | 100 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.272" Dia x 0.122" T (6.90mm x 3.10mm) | 0.461" (11.70mm) | - | 0.201" (5.10mm) |
|
RUSBF135-APPTC RESET FUSE 16V 1.35A RADIAL |
1,531 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RUSBF | Cut Tape (CT) | Active | Polymeric | 16V | 1.35 A | 2.7 A | 40 A | 4.5 s | 40 mOhms | 112 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.350" L x 0.118" W (8.90mm x 3.00mm) | 0.532" (13.50mm) | - | 0.199" (5.05mm) |
|
|
16R160BPRPTC RESET FUSE 16V 1.6A RADIAL |
2,000 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, USBR | Tape & Reel (TR) | Obsolete | Polymeric | 16V | 1.6 A | 3.2 A | 40 A | 9 s | 30 mOhms | 110 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.350" L x 0.118" W (8.90mm x 3.00mm) | 0.598" (15.20mm) | - | 0.201" (5.10mm) |
|
R0603LR-035-RPTC RESET FUSE 6V 350MA 0603 |
12,000 | - |
|
Datasheet |
0603 (1608 Metric), Concave | R0603LR | Tape & Reel (TR) | Active | Polymeric | 6V | 350 mA | 750 mA | 100 A | 100 ms | 200 mOhms | 1 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.063" L x 0.029" W (1.60mm x 0.73mm) | - | 0.030" (0.75mm) | - |
|
R2920-100-RPTC RESET FUSE 33V 1.1A 2920 |
4,000 | - |
|
Datasheet |
2920 (7351 Metric), Concave | R2920 | Tape & Reel (TR) | Active | Polymeric | 33V | 1.1 A | 2.2 A | 100 A | 500 ms | 90 mOhms | 410 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.039" (1.00mm) | - |
|
R2920-050-RPTC RESET FUSE 60V 500MA 2920 |
2,000 | - |
|
Datasheet |
2920 (7351 Metric), Concave | R2920 | Tape & Reel (TR) | Active | Polymeric | 60V | 500 mA | 1 A | 100 A | 4 s | 300 mOhms | 1.4 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.045" (1.15mm) | - |
|
MF-NSML260-2PTC RESET FUSE 6V 2.6A 1206 |
9,767 | - |
|
- |
1206 (3216 Metric), Concave | Multifuse®, MF-NSML | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 2.6 A | 5.2 A | 50 A | 4 s | 3 mOhms | 26 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.128" L x 0.063" W (3.25mm x 1.60mm) | - | 0.024" (0.60mm) | - |
|
MF-USML270-2PTC RESET FUSE 6V 2.7A 1210 |
9,109 | - |
|
Datasheet |
1210 (3225 Metric), Concave | Multifuse®, MF-USML | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 2.7 A | 5.4 A | 50 A | 4 s | 4 mOhms | 20 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.024" (0.60mm) | - |
|
RUSBF155-2PTC RESET FUSE 6V 1.55A RADIAL |
2,813 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RUSBF | Tape & Reel (TR) | Active | Polymeric | 6V | 1.55 A | 2.65 A | 40 A | 2.2 s | 40 mOhms | 100 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.272" L x 0.122" W (6.90mm x 3.10mm) | 0.461" (11.70mm) | - | 0.200" (5.08mm) |
|
RGEF400K-2PTC RESET FUSE 16V 4A RADIAL |
1,077 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RGEF | Tape & Reel (TR) | Active | Polymeric | 16V | 4 A | 6.8 A | 100 A | 1.7 s | 21 mOhms | 60 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.331" L x 0.098" W (8.40mm x 2.50mm) | 0.504" (12.80mm) | - | 0.199" (5.05mm) |
|
MF-PSML110-2PTC RESET FUSE 6V 0805 |
6,243 | - |
|
Datasheet |
0805 (2012 Metric), Concave | Multifuse®, MF-PSML | Tape & Reel (TR) | Obsolete | Polymeric | 6V | - | - | - | - | 17.5 mOhms | - | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.085" L x 0.053" W (2.15mm x 1.35mm) | - | 0.024" (0.60mm) | - |
|
RS60RB-025PTC RESET FUSE 60V 250MA RADIAL |
4,884 | - |
|
Datasheet |
Radial, Disc | RS60RB | Bulk | Active | Polymeric | 60V | 250 mA | 500 mA | 40 A | 2.5 s | 1.25 Ohms | 3 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.291" Dia x 0.122" T (7.40mm x 3.10mm) | 0.500" (12.70mm) | - | 0.201" (5.10mm) |
|
RS60RB-010PTC RESET FUSE 60V 100MA RADIAL |
4,000 | - |
|
Datasheet |
Radial, Disc | RS60RB | Bulk | Active | Polymeric | 60V | 100 mA | 200 mA | 40 A | 4 s | 2.5 Ohms | 7.5 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.291" Dia x 0.122" T (7.40mm x 3.10mm) | 0.500" (12.70mm) | - | 0.201" (5.10mm) |
|
|
RGEF500K-APPTC RESET FUSE 16V 5A RADIAL |
3,925 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RGEF | 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 | 0.390" L x 0.098" W (9.90mm x 2.50mm) | 0.563" (14.30mm) | - | 0.199" (5.05mm) |
|
TRF250-183S-2PTC RESET FUSE 100V 183MA RADIAL |
2,842 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, TRF250 | Tape & Reel (TR) | Active | Polymeric | 100V (250V Int) | 183 mA | 685 mA | 10 A | 1.8 s | 800 mOhms | 3.4 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.295" Dia x 0.150" T (7.50mm x 3.80mm) | 0.374" (9.50mm) | - | 0.197" (5.00mm) |
|
MF-PSML350-2PTC RESET FUSE 6V 3.5A 0805 |
9,889 | - |
|
Datasheet |
0805 (2012 Metric), Concave | Multifuse®, MF-PSML | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 3.5 A | 7 A | 50 A | 5 s | 3 mOhms | 25 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.085" L x 0.053" W (2.15mm x 1.35mm) | - | 0.032" (0.80mm) | - |

