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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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FRG400-16FRESETTABLE FUSE - PPTC RADIAL LE |
600 | - |
|
Datasheet |
Radial, Disc | FRG | Bulk | Active | - | 16V | 4 A | 6.8 A | 100 A | 3.5 s | 20 mOhms | 63 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.350" L x 0.118" W (8.90mm x 3.00mm) | 0.504" (12.80mm) | - | 0.201" (5.10mm) |
|
FRU250-30FRESETTABLE FUSE - PPTC RADIAL LE |
300 | - |
|
Datasheet |
Radial, Disc | FRU | Bulk | Active | - | 30V | 2.5 A | 5 A | 100 A | 10.3 s | 20 mOhms | 70 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.449" L x 0.118" W (11.40mm x 3.00mm) | 0.720" (18.30mm) | - | 0.201" (5.10mm) |
|
FRU300-30FRESETTABLE FUSE - PPTC RADIAL LE |
340 | - |
|
Datasheet |
Radial, Disc | FRU | Bulk | Active | - | 30V | 3 A | 6 A | 100 A | 10.8 s | 20 mOhms | 80 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.449" L x 0.118" W (11.40mm x 3.00mm) | 0.681" (17.30mm) | - | 0.201" (5.10mm) |
|
FRV012-240FRESETTABLE FUSE - PPTC RADIAL LE |
990 | - |
|
Datasheet |
Radial, Disc | FRV | Bulk | Active | - | 240V (265V Int) | 120 mA | 300 mA | 1.2 A | 15 s | 3 Ohms | 12 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.327" Dia (8.30mm) | 0.421" (10.70mm) | - | 0.201" (5.10mm) |
|
FSMD100-60-2920RRESETTABLE FUSE - SMD, 2920 SIZE |
1,000 | - |
|
Datasheet |
2920 (7351 Metric), Concave | FSMD2920 | Tape & Reel (TR) | Active | - | 60V | 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) | - |
|
FSMD330-2920RRESETTABLE FUSE - SMD, 2920 SIZE |
900 | - |
|
Datasheet |
2920 (7351 Metric), Concave | FSMD2920 | Tape & Reel (TR) | Active | - | 24V | 3.3 A | 5.5 A | 100 A | 20 s | 10 mOhms | 48 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.045" (1.15mm) | - |
|
MF-USML230-2PTC RESET FUSE 6V 2.3A 1210 |
4,074 | - |
|
Datasheet |
1210 (3225 Metric), Concave | Multifuse®, MF-USML | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 2.3 A | 4.6 A | 50 A | 3.5 s | 4.5 mOhms | 24 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.024" (0.60mm) | - |
|
MF-RX110-0-99PTC RESET FUSE 60V 1.1A RADIAL |
6,304 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RX | Bulk | Obsolete | Polymeric | 60V | 1.1 A | 2.2 A | 40 A | 8.2 s | 150 mOhms | 380 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.427" L x 0.122" W (10.84mm x 3.10mm) | 0.662" (16.84mm) | - | 0.201" (5.10mm) |
|
TSL250-080F-B-0.5-2PTC RESET FUSE 80V 80MA 2SMD |
743 | - |
|
Datasheet |
2-SMD | PolySwitch®, TSL250 | Tape & Reel (TR) | Obsolete | Polymeric | 80V (250V Int) | 80 mA | 240 mA | 3 A | 1.6 s | 5 Ohms | 20 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.287" L x 0.199" W (7.30mm x 5.05mm) | - | 0.146" (3.70mm) | - |
|
FRV025-240FRESETTABLE FUSE - PPTC RADIAL LE |
490 | - |
|
Datasheet |
Radial, Disc | FRV | Bulk | Active | - | 240V (265V Int) | 250 mA | 560 mA | 3.5 A | 18.5 s | 1.3 Ohms | 3.8 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.378" L x 0.150" W (9.60mm x 3.80mm) | 0.685" (17.40mm) | - | 0.201" (5.10mm) |
|
FRG800-16FRESETTABLE FUSE - PPTC RADIAL LE |
380 | - |
|
Datasheet |
Radial, Disc | FRG | Bulk | Active | - | 16V | 8 A | 13.6 A | 100 A | 9 s | 5 mOhms | 18 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.500" L x 0.118" W (12.70mm x 3.00mm) | 0.823" (20.90mm) | - | 0.201" (5.10mm) |
|
FRX250-90FRESETTABLE FUSE - PPTC RADIAL LE |
290 | - |
|
Datasheet |
Radial, Disc | FRX90 | Bulk | Active | - | 72V (90V Int) | 2.5 A | 5 A | 40 A | 15.6 s | 50 mOhms | 130 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.839" Dia (21.30mm) | 1.039" (26.40mm) | - | 0.402" (10.20mm) |
|
FRU500-30FRESETTABLE FUSE - PPTC RADIAL LE |
380 | - |
|
Datasheet |
Radial, Disc | FRU | Bulk | Active | - | 30V | 5 A | 10 A | 100 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) | 0.980" (24.90mm) | - | 0.402" (10.20mm) |
|
FRU600-30FRESETTABLE FUSE - PPTC RADIAL LE |
300 | - |
|
Datasheet |
Radial, Disc | FRU | Bulk | Active | - | 30V | 6 A | 12 A | 100 A | 16 s | 5 mOhms | 40 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.650" L x 0.118" W (16.50mm x 3.00mm) | 0.980" (24.90mm) | - | 0.402" (10.20mm) |
|
RXEF017-APPTC RESET FUSE 60V 170MA RADIAL |
250 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RXEF | Cut Tape (CT) | Active | Polymeric | 60V | 170 mA | 340 mA | 40 A | 3 s | 3.3 Ohms | 8 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.291" Dia x 0.118" T (7.40mm x 3.00mm) | 0.500" (12.70mm) | - | 0.199" (5.05mm) |
|
|
16R1100GFPTC RESET FUSE 16V 11A RADIAL |
400 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 16R | Bulk | Obsolete | Polymeric | 16V | 11 A | 18.7 A | 100 A | 7 s | 3.7 mOhms | 8.9 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.689" L x 0.118" W (17.50mm x 3.00mm) | 1.024" (26.00mm) | - | 0.201" (5.10mm) |
|
FRG900-16FRESETTABLE FUSE - PPTC RADIAL LE |
400 | - |
|
Datasheet |
Radial, Disc | FRG | Bulk | Active | - | 16V | 9 A | 15.3 A | 100 A | 12 s | 4 mOhms | 15 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.551" L x 0.118" W (14.00mm x 3.00mm) | 0.854" (21.70mm) | - | 0.201" (5.10mm) |
|
FRG1000-16FRESETTABLE FUSE - PPTC RADIAL LE |
280 | - |
|
Datasheet |
Radial, Disc | FRG | Bulk | Active | - | 16V | 10 A | 17 A | 100 A | 12.5 s | 3 mOhms | 12 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.650" L x 0.118" W (16.50mm x 3.00mm) | 0.949" (24.10mm) | - | 0.201" (5.10mm) |
|
RXEF010-APPTC RESET FUSE 60V 100MA RADIAL |
33 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RXEF | Cut Tape (CT) | 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 0.118" T (7.40mm x 3.00mm) | 0.457" (11.60mm) | - | 0.199" (5.05mm) |
|
PTR016V1200-TRPTC RESET FUSE 16V 12A RADIAL |
9,300 | - |
|
Datasheet |
Radial, Disc | PTR016V | Tape & Reel (TR) | Active | Polymeric | 16V | 12 A | 20.4 A | 100 A | 7.5 s | 3 mOhms | 9 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.689" L x 0.122" W (17.50mm x 3.10mm) | 1.102" (28.00mm) | - | 0.394" (10.00mm) |

