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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
TS120A-3851DUAL SINGLE SHOT TIMER |
2,769 | - |
|
Datasheet |
- | - | Box | Active | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
RXE300PTC RESET FUSE 72V 3A RADIAL |
9,500 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RXE | Bulk | Obsolete | Polymeric | 72V | 3 A | 6 A | 40 A | 19.8 s | 40 mOhms | 100 mOhms | - | - | - | - | - | Through Hole | 0.941" Dia x 0.118" T (23.90mm x 3.00mm) | 1.126" (28.60mm) | - | 0.400" (10.15mm) |
|
RXE050PTC RESET FUSE 72V 500MA RADIAL |
5,195 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RXE | Bulk | Obsolete | Polymeric | 72V | 500 mA | 1 A | 40 A | 4 s | 500 mOhms | 1.17 Ohms | - | - | - | - | - | Through Hole | 0.311" Dia x 0.118" T (7.90mm x 3.00mm) | 0.539" (13.70mm) | - | 0.199" (5.05mm) |
|
RXE090PTC RESET FUSE 72V 900MA RADIAL |
3,475 | - |
|
- |
Radial, Disc | PolySwitch®, RXE | Bulk | Obsolete | Polymeric | 72V | 900 mA | 1.8 A | 40 A | 7.2 s | 200 mOhms | 470 mOhms | - | - | - | - | - | Through Hole | 0.441" Dia x 0.118" T (11.20mm x 3.00mm) | 0.622" (15.80mm) | - | 0.199" (5.05mm) |
|
|
RXE065PTC RESET FUSE 60V 650MA RADIAL |
7,790 | - |
|
- |
Radial, Disc | PolySwitch®, RXE | Bulk | Obsolete | Polymeric | 60V | 650 mA | 1.3 A | 40 A | 5.3 s | 310 mOhms | 720 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.370" Dia x 0.118" T (9.40mm x 3.00mm) | 0.571" (14.50mm) | - | 0.199" (5.05mm) |
|
TR250-120PTC RESET FUSE 250V 120MA RADIAL |
2,527 | - |
|
Datasheet |
Radial, Disc | PolySwitch® | Bulk | Obsolete | Polymeric | 250V (60V Int) | 120 mA | - | 3 A | 1.5 s | 4 Ohms | 16 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.256" L x 0.181" W (6.50mm x 4.60mm) | 0.433" (11.00mm) | - | 0.197" (5.00mm) |
|
TR250-180UPTC RESET FUSE 180MA RADIAL |
3,265 | - |
|
- |
Radial, Disc | PolySwitch® | Bulk | Obsolete | - | - | 180 mA | - | - | - | - | - | - | - | - | - | - | Through Hole | 0.409" L x 0.142" W (10.40mm x 3.60mm) | 0.496" (12.60mm) | - | 0.197" (5.00mm) |
|
RUE800PTC RESET FUSE 30V 8A RADIAL |
6,742 | - |
|
Datasheet |
Radial, Disc | PolySwitch® | Bulk | Obsolete | Polymeric | 30V | 8 A | 16 A | 40 A | 18.8 s | 5 mOhms | 20 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.850" L x 0.118" W (21.60mm x 3.00mm) | 1.150" (29.20mm) | - | 0.402" (10.20mm) |
|
RXE135PTC RESET FUSE 60V 1.35A RADIAL |
5,919 | - |
|
- |
Radial, Disc | PolySwitch®, RXE | Bulk | Obsolete | Polymeric | 60V | 1.35 A | 2.7 A | 40 A | 9.6 s | 120 mOhms | 300 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.571" Dia x 0.118" T (14.50mm x 3.00mm) | 0.752" (19.10mm) | - | 0.199" (5.05mm) |
|
TR250-145UPTC RESET FUSE 250V 145MA RADIAL |
7,367 | - |
|
- |
Radial, Disc | PolySwitch® | Bulk | Obsolete | Polymeric | 250V (60V Int) | 145 mA | - | 3 A | 2 s | 3.5 Ohms | 12 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.236" L x 0.150" W (6.00mm x 3.80mm) | 0.394" (10.00mm) | - | 0.197" (5.00mm) |
|
TR250-120UPTC RESET FUSE 250V 120MA RADIAL |
9,079 | - |
|
Datasheet |
Radial, Disc | PolySwitch® | Bulk | Obsolete | Polymeric | 250V (60V Int) | 120 mA | - | 3 A | 1 s | 6 Ohms | 16 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.256" L x 0.181" W (6.50mm x 4.60mm) | 0.433" (11.00mm) | - | 0.197" (5.00mm) |
|
TR250-145PTC RESET FUSE 250V 145MA RADIAL |
5,297 | - |
|
- |
Radial, Disc | PolySwitch® | Bulk | Obsolete | Polymeric | 250V (60V Int) | 145 mA | - | 3 A | 2.5 s | 3 Ohms | 14 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.256" L x 0.181" W (6.50mm x 4.60mm) | 0.433" (11.00mm) | - | 0.197" (5.00mm) |
|
RXE075PTC RESET FUSE 60V 750MA RADIAL |
5,246 | - |
|
- |
Radial, Disc | PolySwitch®, RXE | Bulk | Obsolete | Polymeric | 60V | 750 mA | 1.5 A | 40 A | 6.3 s | 250 mOhms | 600 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.402" Dia x 0.118" T (10.20mm x 3.00mm) | 0.598" (15.20mm) | - | 0.199" (5.05mm) |
|
|
RUE185PTC RESET FUSE 30V 1.85A RADIAL |
8,338 | - |
|
Datasheet |
Radial, Disc | PolySwitch® | Bulk | Obsolete | Polymeric | 30V | 1.85 A | 3.7 A | 40 A | 8.7 s | 30 mOhms | 90 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.402" L x 0.118" W (10.20mm x 3.00mm) | 0.618" (15.70mm) | - | 0.201" (5.10mm) |
|
RUE160PTC RESET FUSE 30V 1.6A RADIAL |
7,956 | - |
|
Datasheet |
Radial, Disc | PolySwitch® | Bulk | Obsolete | Polymeric | 30V | 1.6 A | 3.2 A | 40 A | 8 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) |
|
RUE400PTC RESET FUSE 30V 4A RADIAL |
4,765 | - |
|
Datasheet |
Radial, Disc | PolySwitch® | Bulk | Obsolete | Polymeric | 30V | 4 A | 8 A | 40 A | 12.7 s | 10 mOhms | 50 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.551" L x 0.120" W (14.00mm x 3.00mm) | 0.831" (21.10mm) | - | 0.201" (5.10mm) |
|
RXE030PTC RESET FUSE 72V 300MA RADIAL |
5,958 | - |
|
- |
Radial, Disc | PolySwitch®, RXE | Bulk | Obsolete | Polymeric | 72V | 300 mA | 600 mA | 40 A | 3 s | 880 mOhms | 2.1 Ohms | - | - | - | - | - | Through Hole | 0.291" Dia x 0.118" T (7.40mm x 3.00mm) | 0.500" (12.70mm) | - | 0.199" (5.05mm) |
|
RXE020PTC RESET FUSE 72V 200MA RADIAL |
5,494 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RXE | Bulk | Obsolete | Polymeric | 72V | 200 mA | 400 mA | 40 A | 2.2 s | 1.83 Ohms | 4.4 Ohms | - | - | - | - | - | Through Hole | 0.291" Dia x 0.118" T (7.40mm x 3.00mm) | 0.461" (11.70mm) | - | 0.199" (5.05mm) |
|
RXE025PTC RESET FUSE 72V 250MA RADIAL |
7,598 | - |
|
- |
Radial, Disc | PolySwitch®, RXE | Bulk | Obsolete | Polymeric | 72V | 250 mA | 500 mA | 40 A | 2.5 s | 1.25 Ohms | 3 Ohms | - | - | - | - | - | Through Hole | 0.291" Dia x 0.118" T (7.40mm x 3.00mm) | 0.500" (12.70mm) | - | 0.199" (5.05mm) |
|
RXE040PTC RESET FUSE 72V 400MA RADIAL |
3,509 | - |
|
- |
Radial, Disc | PolySwitch®, RXE | Bulk | Obsolete | Polymeric | 72V | 400 mA | 800 mA | 40 A | 3.8 s | 550 mOhms | 1.29 Ohms | - | - | - | - | - | Through Hole | 0.299" Dia x 0.118" T (7.60mm x 3.00mm) | 0.532" (13.50mm) | - | 0.199" (5.05mm) |

