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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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PTR030V0250-TRPTC RESET FUSE 30V 2.5A RADIAL |
1,430 | - |
|
Datasheet |
Radial, Disc | PTR030V | Tape & Reel (TR) | Active | Polymeric | 30V | 2.5 A | 5 A | 40 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) | - | 0.197" (5.00mm) |
|
MF-R090-0-17PTC RESETTABLE 0.9A 60V RADIAL L |
2,343 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-R | Bulk | Active | Polymeric | 60V | 900 mA | 1.8 A | 40 A | 7.2 s | 140 mOhms | 470 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.461" Dia x 0.122" T (11.70mm x 3.10mm) | 0.657" (16.70mm) | - | 0.201" (5.10mm) |
|
MF-RX110/72-2-14PTC RESET FUSE 72V 1.1A RADIAL |
2,999 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RX/72 | 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 | 0.427" L x 0.122" W (10.84mm x 3.10mm) | 0.663" (16.84mm) | - | 0.201" (5.10mm) |
|
MF-R185-APPTC RESET FUSE 30V 1.85A RADIAL |
2,594 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-R | Cut Tape (CT) | Active | Polymeric | 30V | 1.85 A | 3.7 A | 40 A | 8.7 s | 40 mOhms | 110 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.472" Dia x 0.118" T (12.00mm x 3.00mm) | 0.724" (18.40mm) | - | 0.201" (5.10mm) |
|
MF-NSMF175-21206 POLYMER PTC 1.75A/6V |
2,580 | - |
|
Datasheet |
1206 (3216 Metric), Concave | Multifuse®, MF-NSMF | Tape & Reel (TR) | Active | Polymeric | 6V | 1.75 A | 3.5 A | 100 A | 1 s | 20 mOhms | 85 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.128" L x 0.063" W (3.25mm x 1.60mm) | - | 0.063" (1.60mm) | - |
|
|
ASMD250F-2PTC RESET FUSE 16V 1.97A 2SMD |
1,435 | - |
|
Datasheet |
2-SMD | PolySwitch®, ASMD | Tape & Reel (TR) | Active | Polymeric | 16V | 1.97 A | 5 A | 40 A | 30 s | 35 mOhms | 85 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.343" L x 0.250" W (8.70mm x 6.36mm) | - | 0.118" (3.00mm) | - |
|
72R090XPRPTC RESET FUSE 72V 900MA RADIAL |
2,860 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 72R | Cut Tape (CT) | Active | Polymeric | 72V | 900 mA | 1.8 A | 40 A | 7.2 s | 200 mOhms | 470 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.441" Dia x 0.122" T (11.20mm x 3.10mm) | 0.622" (15.80mm) | - | 0.201" (5.10mm) |
|
RGEF600-2PTC RESET FUSE 16V 6A RADIAL |
1,945 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RGEF | Tape & Reel (TR) | Active | Polymeric | 16V | 6 A | 10.2 A | 100 A | 3.3 s | 10 mOhms | 28 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.402" L x 0.098" W (10.20mm x 2.50mm) | 0.673" (17.10mm) | - | 0.199" (5.05mm) |
|
|
60R065XPRPTC RESET FUSE 60V 650MA RADIAL |
3,897 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 60R | Cut Tape (CT) | Active | 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 0.122" T (9.40mm x 3.10mm) | 0.571" (14.50mm) | - | 0.201" (5.10mm) |
|
|
MF-RX050/72-2PTC RESET FUSE 72V 500MA RADIAL |
3,785 | - |
|
Datasheet |
Radial, Disc | MF-RX/72 | Tape & Reel (TR) | Active | - | 72V | 500 mA | 1 A | 40 A | 4 s | - | - | - | - | - | - | - | Through Hole | 0.311" Dia x 0.122" W (7.90mm x 3.10mm) | - | - | 0.201" (5.10mm) |
|
MF-RM012/240-0PTC RESET FUSE 240V 120MA RADIAL |
2,945 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RM | Bulk | Active | Polymeric | 240V (265V Int) | 120 mA | 300 mA | 1.2 A | 15 s | 3 Ohms | 12 Ohms | - | -20°C ~ 85°C | - | - | - | Through Hole | 0.327" Dia x 0.150" T (8.30mm x 3.80mm) | 0.508" (12.90mm) | - | 0.114" (2.90mm) |
|
MF-RG700-0PTC RESET FUSE 16V 7A RADIAL |
2,580 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RG | Bulk | Active | Polymeric | 16V | 7 A | 11.9 A | 100 A | 8 s | 8 mOhms | 21 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.441" L x 0.118" W (11.20mm x 3.00mm) | 0.740" (18.80mm) | - | 0.201" (5.10mm) |
|
|
MF-RX040/72-2PTC RESET FUSE 72V 400MA RADIAL |
2,247 | - |
|
Datasheet |
Radial, Disc | MF-RX/72 | Tape & Reel (TR) | Active | - | 72V | 400 mA | 800 mA | 40 A | 3.9 s | - | - | - | - | - | - | - | Through Hole | 0.291" Dia x 0.122" W (7.40mm x 3.10mm) | - | - | 0.201" (5.10mm) |
|
|
MF-VS170-0PTC RESET FUSE 16V 1.7A STRAP |
1,982 | - |
|
Datasheet |
Strap | Multifuse®, MF-VS | Bulk | Active | Polymeric | 16V | 1.7 A | 3.4 A | 100 A | 3 s | 30 mOhms | 105 mOhms | - | -40°C ~ 85°C | - | - | - | User Defined | 0.669" L x 0.205" W (17.00mm x 5.20mm) | - | 0.035" (0.90mm) | - |
|
LVR008NS-1PTC RESET FUSE 240V 80MA RADIAL |
1,500 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, LVR | Bag | Active | Polymeric | 240V (265V Int) | 80 mA | 190 mA | 1.2 A | 10 s | 7.4 Ohms | 26 Ohms | - | -20°C ~ 85°C | - | - | - | Through Hole | 0.283" Dia x 0.181" T (7.20mm x 4.60mm) | 0.402" (10.20mm) | - | 0.200" (5.08mm) |
|
MF-USML260/12-2PTC RESET FUSE 12V 2.6A 1210 |
4,860 | - |
|
Datasheet |
1210 (3225 Metric), Concave | Multifuse®, MF-USML/X | Tape & Reel (TR) | Active | Polymeric | 12V | 2.6 A | 5.2 A | 50 A | 5 s | 4 mOhms | 30 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.101" W (3.22mm x 2.58mm) | - | 0.031" (0.80mm) | - |
|
|
CMF-RL50-10-0PTC RESET FUSE 220V 65MA RADIAL |
3,551 | - |
|
Datasheet |
Radial, Disc | CMF-RL | Bulk | Active | Ceramic | 220V (600V Int) | 65 mA | 150 mA | 3 A | 150 ms | - | - | 50 Ohms | -40°C ~ 125°C | - | - | - | Through Hole | 0.386" L x 0.197" W (9.80mm x 5.00mm) | 0.532" (13.50mm) | - | 0.200" (5.08mm) |
|
TRF250-183SPTC RESET FUSE 100V 183MA RADIAL |
1,210 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, TRF250 | Bag | Active | Polymeric | 100V (250V Int) | 183 mA | 685 mA | 10 A | 1.8 s | 800 mOhms | 3.4 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.295" Dia x 0.150" T (7.50mm x 3.80mm) | 0.374" (9.50mm) | - | 0.197" (5.00mm) |
|
|
0ZRN0070FF1EPTC RESET FUSE 30V 700MA RADIAL |
2,985 | - |
|
Datasheet |
Radial, Disc | 0ZRN | Bulk | Active | Polymeric | 30V | 700 mA | 1.4 A | 40 A | 3.2 s | 300 mOhms | 800 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.272" L x 0.118" W (6.90mm x 3.00mm) | 0.425" (10.80mm) | - | 0.201" (5.10mm) |
|
MF-RG800-0PTC RESET FUSE 16V RADIAL DISC |
2,829 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RG | Bulk | Active | Polymeric | 16V | - | - | 100 A | - | - | - | - | -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) |

