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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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MF-RHT800-2PTC RESET FUSE 16V 8A RADIAL |
1,950 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RHT | Tape & Reel (TR) | Active | Polymeric | 16V | 8 A | 15 A | 100 A | 8 s | 8 mOhms | 20 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.630" L x 0.118" W (16.00mm x 3.00mm) | 0.886" (22.50mm) | - | 0.201" (5.10mm) |
|
AHRL350PTC RESET FUSE 3.5A 16V RAD |
332 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, AHRL | Bulk | Active | Polymeric | 16V | 3.5 A | 7 A | 50 A | 4.5 s | 18 mOhms | 32 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.331" L x 0.118" W (8.40mm x 3.00mm) | 0.488" (12.40mm) | - | 0.199" (5.05mm) |
|
AHRL600PTC RESET FUSE 6A 16V RAD |
58 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, AHRL | Bulk | Active | Polymeric | 16V | 6 A | 13 A | 50 A | 6.5 s | 9 mOhms | 14 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.344" L x 0.118" W (8.75mm x 3.00mm) | 0.630" (16.00mm) | - | 0.199" (5.05mm) |
|
AHRL500PTC RESET FUSE 5A 16V RAD |
37 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, AHRL | Bulk | Active | Polymeric | 16V | 5 A | 10 A | 50 A | 5.8 s | 13.5 mOhms | 24 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.362" L x 0.118" W (9.20mm x 3.00mm) | 0.555" (14.10mm) | - | 0.199" (5.05mm) |
|
RUEF600-1PTC RESET FUSE 30V 6A RADIAL |
250 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RUEF | Bag | Active | Polymeric | 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) | 0.949" (24.10mm) | - | 0.400" (10.15mm) |
|
PTR016V1400-BKPTC RESET FUSE 16V 14A RADIAL |
125 | - |
|
Datasheet |
Radial, Disc | PTR016V | Bulk | Active | Polymeric | 16V | 14 A | 23.8 A | 100 A | 9 s | 2 mOhms | 7 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.925" L x 0.122" W (23.50mm x 3.10mm) | 1.098" (27.90mm) | - | 0.394" (10.00mm) |
|
MF-R250UPTC RESET FUSE 30V 2.5A RADIAL |
44 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-R | Bulk | Active | Polymeric | 30V | 2.5 A | 5 A | 40 A | 10.3 s | 25 mOhms | 70 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.472" L x 0.118" W (12.00mm x 3.00mm) | 0.720" (18.30mm) | - | 0.201" (5.10mm) |
|
LVR040S-1PTC RESET FUSE 240V 400MA RADIAL |
850 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, LVR | Bag | 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) |
|
MF-RHT500-0PTC RESET FUSE 16V 5A RADIAL |
808 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RHT | Bag | Active | Polymeric | 16V | 5 A | 9 A | 100 A | 9 s | 17.5 mOhms | 45 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.441" L x 0.118" W (11.20mm x 3.00mm) | 0.744" (18.90mm) | - | 0.201" (5.10mm) |
|
MF-RX012/250-T-2PTC RESET FUSE 60V 120MA RADIAL |
50 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RX/250 | Tape & Reel (TR) | Active | Polymeric | 60V (250V Int) | 120 mA | - | 3 A | - | 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) |
|
1210L175WRPTC RESET FUSE 6V 1.75A 1210 |
50 | - |
|
Datasheet |
1210 (3225 Metric), Concave | POLY-FUSE®, 1210L | Tape & Reel (TR) | Active | Polymeric | 6V | 1.75 A | 3.5 A | 100 A | 600 ms | 20 mOhms | 80 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.039" (1.00mm) | - |
|
TRF250-145TPTC RESET FUSE 60V 145MA RADIAL |
480 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, TRF250 | Bag | Active | Polymeric | 60V (250V Int) | 145 mA | 290 mA | 3 A | 2.5 s | 5.4 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) |
|
MF-RHT550-2PTC RESET FUSE 16V 5.5A RADIAL |
276 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RHT | Tape & Reel (TR) | Active | Polymeric | 16V | 5.5 A | 10 A | 100 A | 6 s | 15 mOhms | 37 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.441" L x 0.118" W (11.20mm x 3.00mm) | 0.744" (18.90mm) | - | 0.201" (5.10mm) |
|
MF-RHT500-2PTC RESET FUSE 16V 5A RADIAL |
117 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RHT | Tape & Reel (TR) | Active | Polymeric | 16V | 5 A | 9 A | 100 A | 9 s | 17.5 mOhms | 45 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.441" L x 0.118" W (11.20mm x 3.00mm) | 0.744" (18.90mm) | - | 0.201" (5.10mm) |
|
MF-R800-2PTC RESET FUSE 30V 8A RADIAL |
1,205 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-R | Tape & Reel (TR) | Active | Polymeric | 30V | 8 A | 16 A | 40 A | 18.8 s | 5 mOhms | 30 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.953" L x 0.118" W (24.20mm x 3.00mm) | 1.295" (32.90mm) | - | 0.402" (10.20mm) |
|
RUEF700K-2PTC RESET FUSE 30V 7A RADIAL |
700 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RUEF | 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) | 1.091" (27.70mm) | - | 0.400" (10.15mm) |
|
PTR030V0800-BKPTC RESET FUSE 30V 8A RADIAL |
252 | - |
|
Datasheet |
Radial, Disc | PTR030V | Bulk | Active | Polymeric | 30V | 8 A | 16 A | 100 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) | - | 0.394" (10.00mm) |
|
MF-RG300-2PTC RESET FUSE 16V 3A RADIAL |
36 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RG | Tape & Reel (TR) | Active | Polymeric | 16V | 3 A | 5.1 A | 100 A | 1 s | 38 mOhms | 97.5 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.280" L x 0.118" W (7.10mm x 3.00mm) | 0.433" (11.00mm) | - | 0.201" (5.10mm) |
|
RUEF800KPTC RESET FUSE 30V 8A RADIAL |
52 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RUEF | Bag | Active | Polymeric | 30V | 8 A | 16 A | 100 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) | 1.189" (30.20mm) | - | 0.400" (10.15mm) |
|
72R110XMRPTC RESET FUSE 72V 1.1A RADIAL |
54 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 72R | Cut Tape (CT) | Active | Polymeric | 72V | 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) | 0.717" (18.20mm) | - | 0.201" (5.10mm) |

