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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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RS90-055PTC RESET FUSE 72V 550MA RADIAL |
484 | - |
|
Datasheet |
Radial, Disc | RS90 | Bulk | Active | Polymeric | 72V (90V Int) | 550 mA | 1.2 A | 40 A | 10 s | 400 mOhms | 1.5 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.382" Dia x 0.122" T (9.70mm x 3.10mm) | 0.551" (14.00mm) | - | 0.201" (5.10mm) |
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RS90-050PTC RESET FUSE 72V 500MA RADIAL |
472 | - |
|
Datasheet |
Radial, Disc | RS90 | Bulk | Active | Polymeric | 72V (90V Int) | 500 mA | 1 A | 40 A | 4 s | 500 mOhms | 1.17 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.311" Dia x 0.122" T (7.90mm x 3.10mm) | 0.539" (13.70mm) | - | 0.201" (5.10mm) |
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RS30-090PTC RESET FUSE 30V 900MA RADIAL |
386 | - |
|
Datasheet |
Radial, Disc | RS30 | Bulk | Active | Polymeric | 30V | 900 mA | 1.8 A | 100 A | 5.9 s | 70 mOhms | 220 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.291" L x 0.118" W (7.40mm x 3.00mm) | 0.480" (12.20mm) | - | 0.201" (5.10mm) |
|
RGEF500-APPTC RESET FUSE 16V 5A RADIAL |
152 | - |
|
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) |
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PICOASMDCH035F-2PPTC-MINI-PSW |
744 | - |
|
Datasheet |
0805 (2012 Metric), Concave | PolySwitch®, picoASMD | Tape & Reel (TR) | Active | Polymeric | 16V | 350 mA | 1.1 A | 40 A | 100 ms | 300 mOhms | 1.9 Ohms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Surface Mount | 0.083" L x 0.055" W (2.10mm x 1.40mm) | - | 0.047" (1.20mm) | - |
|
RXEF185-APPTC RESET FUSE 72V 1.85A RADIAL |
209 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RXEF | Cut Tape (CT) | Active | Polymeric | 72V | 1.85 A | 3.7 A | 40 A | 12.6 s | 80 mOhms | 190 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.689" Dia x 0.118" T (17.50mm x 3.00mm) | 0.882" (22.40mm) | - | 0.199" (5.05mm) |
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RXEF185K-APPTC RESET FUSE 72V 1.85A RADIAL |
218 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RXEF | Cut Tape (CT) | Active | Polymeric | 72V | 1.85 A | 3.7 A | 40 A | 12.6 s | 80 mOhms | 190 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.660" Dia x 0.118" T (16.76mm x 3.00mm) | 0.906" (23.00mm) | - | 0.199" (5.05mm) |
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FRV100-240FRESETTABLE FUSE - PPTC RADIAL LE |
240 | - |
|
Datasheet |
Radial, Disc | FRV | Bulk | Active | - | 240V (265V Int) | 1 A | 2 A | 10 A | 21 s | 220 mOhms | 580 mOhms | - | -20°C ~ 85°C | - | - | - | Through Hole | 0.736" Dia (18.70mm) | 0.961" (24.40mm) | - | 0.402" (10.20mm) |
|
RS90-065PTC RESET FUSE 72V 650MA RADIAL |
229 | - |
|
Datasheet |
Radial, Disc | RS90 | Bulk | Active | Polymeric | 72V (90V Int) | 650 mA | 1.3 A | 40 A | 5.3 s | 310 mOhms | 720 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.382" Dia x 0.122" T (9.70mm x 3.10mm) | 0.571" (14.50mm) | - | 0.201" (5.10mm) |
|
RS90-075PTC RESET FUSE 72V 750MA RADIAL |
249 | - |
|
Datasheet |
Radial, Disc | RS90 | Bulk | Active | Polymeric | 72V (90V Int) | 750 mA | 1.5 A | 40 A | 6.3 s | 250 mOhms | 600 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.409" Dia x 0.122" T (10.40mm x 3.10mm) | 0.598" (15.20mm) | - | 0.201" (5.10mm) |
|
|
MF-RX018/250-0PTC RESET FUSE 60V 180MA RADIAL |
26 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RX/250 | Bulk | Active | Polymeric | 60V (250V Int) | 180 mA | - | 10 A | - | 800 mOhms | 4 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.433" L x 0.181" W (11.00mm x 4.60mm) | 0.535" (13.60mm) | - | 0.201" (5.10mm) |
|
RUEF500K-APPTC RESET FUSE 30V 5A RADIAL |
1,578 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RUEF | Cut Tape (CT) | Active | Polymeric | 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) | 1.008" (25.60mm) | - | 0.400" (10.15mm) |
|
FRV125-240FRESETTABLE FUSE - PPTC RADIAL LE |
220 | - |
|
Datasheet |
Radial, Disc | FRV | Bulk | Active | - | 240V (265V Int) | 1.25 A | 2.5 A | 12.5 A | 23 s | 170 mOhms | 440 mOhms | - | -20°C ~ 85°C | - | - | - | Through Hole | 0.835" Dia (21.20mm) | 1.079" (27.40mm) | - | 0.402" (10.20mm) |
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0ZSC0260FF1EPTC RESET FUSE 20V 2.6A STRAP |
710 | - |
|
Datasheet |
Strap | 0ZSC | Bulk | Active | Polymeric | 20V | 2.6 A | 5.8 A | 100 A | 5 s | 20 mOhms | 63 mOhms | - | -40°C ~ 85°C | - | - | - | User Defined | 0.866" L x 0.205" W (22.00mm x 5.20mm) | - | 0.039" (1.00mm) | - |
|
R2920-100-60-RPTC RESET FUSE 60V 1.1A 2920 |
1,000 | - |
|
Datasheet |
2920 (7351 Metric), Concave | R2920 | Tape & Reel (TR) | Active | Polymeric | 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) | - | 0.067" (1.70mm) | - |
|
RS120-025PTC RESET FUSE 120V 250MA RADIAL |
913 | - |
|
Datasheet |
Radial, Disc | RS120 | Bulk | Active | Polymeric | 120V (135V Int) | 250 mA | 500 mA | 3 A | 7.5 s | 1.25 Ohms | 3 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.311" Dia x 0.150" T (7.90mm x 3.80mm) | 0.512" (13.00mm) | - | 0.201" (5.10mm) |
|
RS90-110PTC RESET FUSE 72V 1.1A RADIAL |
499 | - |
|
Datasheet |
Radial, Disc | RS90 | Bulk | Active | Polymeric | 72V (90V Int) | 1.1 A | 2.2 A | 40 A | 8.2 s | 150 mOhms | 380 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.512" Dia x 0.122" T (13.00mm x 3.10mm) | 0.709" (18.00mm) | - | 0.201" (5.10mm) |
|
RS120-010PTC RESET FUSE 120V 100MA RADIAL |
29 | - |
|
Datasheet |
Radial, Disc | RS120 | Bulk | Active | Polymeric | 120V (135V Int) | 100 mA | 200 mA | 2 A | 10 s | 3 Ohms | 7.5 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.311" Dia x 0.150" T (7.90mm x 3.80mm) | 0.512" (13.00mm) | - | 0.201" (5.10mm) |
|
FRV150-240FRESETTABLE FUSE - PPTC RADIAL LE |
250 | - |
|
Datasheet |
Radial, Disc | FRV | Bulk | Active | - | 240V (265V Int) | 1.5 A | 3 A | 15 A | 23 s | 120 mOhms | 320 mOhms | - | -20°C ~ 85°C | - | - | - | Through Hole | 0.921" Dia (23.40mm) | 1.217" (30.90mm) | - | 0.402" (10.20mm) |
|
LVR040S-2PTC RESET FUSE 240V 400MA RADIAL |
385 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, LVR | Tape & Reel (TR) | 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) | 0.768" (19.50mm) | - | 0.200" (5.08mm) |

