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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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PTGL12AS4R7K6B51B0PTC RESET FUSE 140V 393MA RADIAL |
6,879 | - |
|
Datasheet |
Radial, Disc | POSISTOR®, PTGL | Bulk | Obsolete | Ceramic | 140V | 393 mA | 523 mA | 3.5 A | - | - | - | 4.7 Ohms | -30°C ~ 85°C | - | - | - | Through Hole | 0.453" Dia x 0.138" T (11.50mm x 3.50mm) | 0.650" (16.50mm) | - | 0.197" (5.00mm) |
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AHRF250PTC RESET FUSE 16V 2.5A RADIAL |
9,282 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, AHRF | Bulk | Active | Polymeric | 16V | 2.5 A | - | 100 A | - | - | - | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | - | - | - | - |
|
|
LR4-73XFPTC RESET FUSE 730MA STRAP |
7,773 | - |
|
- |
Strap | PolySwitch®, LR4 | Bulk | Active | Polymeric | - | 730 mA | - | 100 A | - | - | - | - | -40°C ~ 85°C | - | - | - | User Defined | 1.831" L x 0.323" W (46.50mm x 8.20mm) | - | 0.039" (1.00mm) | - |
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|
LVR040K-1PTC RESET FUSE 240V 400MA RADIAL |
9,021 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, LVR | Bulk | Active | Polymeric | 240V (265V Int) | 400 mA | 900 mA | 5.5 A | 24 s | 600 mOhms | 1.9 Ohms | - | -20°C ~ 85°C | - | - | - | Through Hole | 0.453" L x 0.150" W (11.50mm x 3.80mm) | 0.823" (20.90mm) | - | 0.200" (5.08mm) |
|
TS250-130F-RC-2PTC RESET FUSE 60V 130MA 2SMD |
3,787 | - |
|
Datasheet |
2-SMD | PolySwitch®, TS250 | Tape & Reel (TR) | Active | Polymeric | 60V (600V Int) | 130 mA | 260 mA | 1 A | 2 s | 7 Ohms | 17 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.352" L x 0.291" W (8.95mm x 7.40mm) | - | 0.134" (3.40mm) | - |
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|
VTP170SSFPTC RESET FUSE 16V 1.7A STRAP |
5,871 | - |
|
Datasheet |
Strap | PolySwitch®, VTP | Bulk | Active | Polymeric | 16V | 1.7 A | 3.4 A | 100 A | 5 s | 30 mOhms | 105 mOhms | - | -40°C ~ 85°C | - | - | - | User Defined | 0.648" L x 0.283" W (16.45mm x 7.20mm) | - | 0.032" (0.80mm) | - |
|
VTP/200GFPTC RESET FUSE 16V 2A STRAP |
7,994 | - |
|
- |
Strap | PolySwitch®, VTP | Bulk | Active | Polymeric | 16V | 2 A | 4.7 A | 100 A | 5 s | 22 mOhms | 78 mOhms | - | - | - | - | - | User Defined | 0.909" L x 0.177" W (23.10mm x 4.50mm) | - | 0.032" (0.80mm) | - |
|
06R155BUPTC RESET FUSE 6V 1.55A RADIAL |
4,359 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, USBR | Bulk | Obsolete | Polymeric | 6V | 1.55 A | 2.7 A | 40 A | 2.2 s | 40 mOhms | 100 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.272" Dia x 0.118" T (6.90mm x 3.00mm) | 0.449" (11.40mm) | - | 0.201" (5.10mm) |
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06R120BUPTC RESET FUSE 6V 1.2A RADIAL |
3,815 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, USBR | Bulk | Obsolete | Polymeric | 6V | 1.2 A | 2 A | 40 A | 500 ms | 65 mOhms | 140 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.272" Dia x 0.118" T (6.90mm x 3.00mm) | 0.449" (11.40mm) | - | 0.201" (5.10mm) |
|
|
06R075BUPTC RESET FUSE 6V 750MA RADIAL |
3,997 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, USBR | Bulk | Obsolete | Polymeric | 6V | 750 mA | 1.3 A | 40 A | 400 ms | 100 mOhms | 230 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.272" Dia x 0.118" T (6.90mm x 3.00mm) | 0.449" (11.40mm) | - | 0.201" (5.10mm) |
|
250R120-R1ZRPTC RESET FUSE 60V 120MA RADIAL |
6,541 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 250R | Tape & Box (TB) | Obsolete | Polymeric | 60V (250V Int) | 120 mA | 240 mA | 3 A | 2.5 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) | - | 0.201" (5.10mm) |
|
250R120-R3UPTC RESET FUSE 60V 120MA RADIAL |
2,714 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 250R | Bulk | Obsolete | Polymeric | 60V (250V Int) | 120 mA | 240 mA | 3 A | 2.5 s | 8 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) | - | 0.201" (5.10mm) |
|
250R120-R2UPTC RESET FUSE 60V 120MA RADIAL |
7,946 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 250R | Bulk | Obsolete | Polymeric | 60V (250V Int) | 120 mA | 240 mA | 3 A | 2.5 s | 8 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) | - | 0.201" (5.10mm) |
|
250R120-RAUPTC RESET FUSE 60V 120MA RADIAL |
5,591 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 250R | Bulk | Obsolete | Polymeric | 60V (250V Int) | 120 mA | 240 mA | 3 A | 2.5 s | 7 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) | - | 0.201" (5.10mm) |
|
250R120-R3ZRPTC RESET FUSE 60V 120MA RADIAL |
2,117 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 250R | Tape & Box (TB) | Obsolete | Polymeric | 60V (250V Int) | 120 mA | 240 mA | 3 A | 2.5 s | 8 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) | - | 0.201" (5.10mm) |
|
250R120TZRPTC RESET FUSE 60V 120MA RADIAL |
7,813 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 250R | Tape & Box (TB) | Obsolete | Polymeric | 60V (250V Int) | 120 mA | 240 mA | 3 A | 2.5 s | 7 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) | - | 0.201" (5.10mm) |
|
250R145-RAUPTC RESET FUSE 60V 145MA RADIAL |
6,714 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 250R | Bulk | Obsolete | Polymeric | 60V (250V Int) | 145 mA | 290 mA | 3 A | 2.5 s | 3 Ohms | 12 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.256" L x 0.181" W (6.50mm x 4.60mm) | 0.433" (11.00mm) | - | 0.201" (5.10mm) |
|
250R120TUPTC RESET FUSE 60V 120MA RADIAL |
8,131 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 250R | Bulk | Obsolete | Polymeric | 60V (250V Int) | 120 mA | 240 mA | 3 A | 2.5 s | 7 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) | - | 0.201" (5.10mm) |
|
250R120-RFZRPTC RESET FUSE 60V 120MA RADIAL |
2,516 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 250R | Tape & Box (TB) | Obsolete | Polymeric | 60V (250V Int) | 120 mA | 240 mA | 3 A | 2.5 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) | - | 0.201" (5.10mm) |
|
250R120-RFUPTC RESET FUSE 60V 120MA RADIAL |
2,184 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 250R | Bulk | Obsolete | Polymeric | 60V (250V Int) | 120 mA | 240 mA | 3 A | 2.5 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) | - | 0.201" (5.10mm) |

