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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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TRF250-120T-R2-B-0.5-2PTC RESET FUSE 60V 120MA RADIAL |
4,425 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, TRF250 | Tape & Reel (TR) | Active | Polymeric | 60V (250V Int) | 120 mA | 240 mA | 3 A | 750 ms | 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) | - | 0.197" (5.00mm) |
|
YQS5940PTHPTC RESET FUSE HEATERS +/-40% |
4,480 | - |
|
Datasheet |
- | YQ | Bulk | Active | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
YS6101PTC RESET FUSE 75V RADIAL DISC |
7,123 | - |
|
- |
Radial, Disc | YS | Bulk | Active | Ceramic | 75V | - | - | - | - | - | - | 6 Ohms | - | - | - | - | Through Hole | 0.315" Dia x 0.059" T (8.00mm x 1.50mm) | 0.059" (1.50mm) | - | 0.197" (5.00mm) |
|
60R375XHSLPTC RESET FUSE 60V 3.75A RADIAL |
4,175 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 60R | Bulk | Obsolete | Polymeric | 60V | 3.75 A | 7.5 A | 40 A | 24 s | 30 mOhms | 80 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 1.035" Dia x 0.122" T (26.30mm x 3.10mm) | 1.224" (31.10mm) | - | 0.402" (10.20mm) |
|
CMF-RLC50-0PTC RESET FUSE 230V 65MA RADIAL |
5,506 | - |
|
Datasheet |
Radial, Disc | CMF-RLC | Bulk | Obsolete | Ceramic | 230V (650V Int) | 65 mA | 150 mA | 3 A | 100 ms | - | - | 50 Ohms | - | - | - | - | Through Hole | 0.354" L x 0.177" W (9.00mm x 4.50mm) | 0.378" (9.60mm) | - | 0.200" (5.08mm) |
|
CMF-RLC50-10-0PTC RESET FUSE 230V 65MA RADIAL |
5,006 | - |
|
Datasheet |
Radial, Disc | CMF-RLC | Bulk | Obsolete | Ceramic | 230V (650V Int) | 65 mA | 150 mA | 3 A | 100 ms | - | - | 50 Ohms | - | - | - | - | Through Hole | 0.354" L x 0.177" W (9.00mm x 4.50mm) | 0.378" (9.60mm) | - | 0.200" (5.08mm) |
|
CMF-RQ50-0PTC RESET FUSE 230V 90MA 8DIP |
6,512 | - |
|
- |
8-DIP (0.197", 5.00mm) | CMF-RQ | Bulk | Obsolete | Ceramic | 230V (600V Int) | 90 mA | 190 mA | 3 A | 100 ms | - | - | 50 Ohms | - | - | - | - | Through Hole | 0.787" L x 0.354" W (20.00mm x 9.00mm) | 0.398" (10.10mm) | - | 0.197" (5.00mm) |
|
CMF-RQ50-10-0PTC RESET FUSE 230V 90MA 8DIP |
7,543 | - |
|
- |
8-DIP (0.197", 5.00mm) | CMF-RQ | Bulk | Obsolete | Ceramic | 230V (600V Int) | 90 mA | 190 mA | 3 A | 100 ms | - | - | 50 Ohms | - | - | - | - | Through Hole | 0.787" L x 0.354" W (20.00mm x 9.00mm) | 0.398" (10.10mm) | - | 0.197" (5.00mm) |
|
|
MF-R015/600-A05-0PTC RESET FUSE 250V 150MA RADIAL |
8,179 | - |
|
Datasheet |
Radial, Box | Multifuse®, MF-R/600 | Bulk | Obsolete | Polymeric | 250V (600V Int) | 150 mA | 300 mA | 3 A | 5 s | 7 Ohms | 20 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.531" L x 0.236" W (13.50mm x 6.00mm) | 0.496" (12.60mm) | - | 0.197" (5.00mm) |
|
|
MF-R015/600-B-0PTC RESET FUSE 250V 150MA RADIAL |
8,267 | - |
|
Datasheet |
Radial, Box | Multifuse®, MF-R/600 | Bulk | Obsolete | Polymeric | 250V (600V Int) | 150 mA | 300 mA | 3 A | 5 s | 9 Ohms | 22 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.531" L x 0.236" W (13.50mm x 6.00mm) | 0.496" (12.60mm) | - | 0.197" (5.00mm) |
|
|
MF-R015/600-B05-0PTC RESET FUSE 250V 150MA RADIAL |
6,800 | - |
|
Datasheet |
Radial, Box | Multifuse®, MF-R/600 | Bulk | Obsolete | Polymeric | 250V (600V Int) | 150 mA | 300 mA | 3 A | 5 s | 9 Ohms | 22 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.531" L x 0.236" W (13.50mm x 6.00mm) | 0.496" (12.60mm) | - | 0.197" (5.00mm) |
|
|
MF-R015/600-F-0PTC RESET FUSE 250V 150MA RADIAL |
7,198 | - |
|
Datasheet |
Radial, Box | Multifuse®, MF-R/600 | Bulk | Obsolete | Polymeric | 250V (600V Int) | 150 mA | 300 mA | 3 A | 5 s | 7 Ohms | 22 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.531" L x 0.236" W (13.50mm x 6.00mm) | 0.496" (12.60mm) | - | 0.197" (5.00mm) |
|
MF-R017-0-99PTC RESET FUSE 60V 170MA RADIAL |
5,592 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-R | Bulk | Obsolete | Polymeric | 60V | 170 mA | 340 mA | 40 A | 3 s | 2 Ohms | 8 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.291" Dia x 0.122" T (7.40mm x 3.10mm) | 0.500" (12.70mm) | - | 0.201" (5.10mm) |
|
MF-R020-0-99PTC RESET FUSE 60V 200MA RADIAL |
4,366 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-R | Bulk | Obsolete | Polymeric | 60V | 200 mA | 400 mA | 40 A | 2.2 s | 1.5 Ohms | 4.4 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.291" Dia x 0.122" T (7.40mm x 3.10mm) | 0.500" (12.70mm) | - | 0.201" (5.10mm) |
|
MF-R025-0-99PTC RESET FUSE 60V 250MA RADIAL |
3,052 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-R | Bulk | Obsolete | Polymeric | 60V | 250 mA | 500 mA | 40 A | 2.5 s | 1 Ohms | 3 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.291" Dia x 0.122" T (7.40mm x 3.10mm) | 0.500" (12.70mm) | - | 0.201" (5.10mm) |
|
MF-R030-0-99PTC RESET FUSE 60V 300MA RADIAL |
8,166 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-R | Bulk | Obsolete | Polymeric | 60V | 300 mA | 600 mA | 40 A | 3 s | 760 mOhms | 2.1 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.291" Dia x 0.122" T (7.40mm x 3.10mm) | 0.528" (13.40mm) | - | 0.201" (5.10mm) |
|
MF-R040-0-99PTC RESET FUSE 60V 400MA RADIAL |
5,672 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-R | Bulk | Obsolete | Polymeric | 60V | 400 mA | 800 mA | 40 A | 3.8 s | 520 mOhms | 1.29 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.291" Dia x 0.122" T (7.40mm x 3.10mm) | 0.539" (13.70mm) | - | 0.201" (5.10mm) |
|
MF-R050-0-99PTC RESET FUSE 60V 500MA RADIAL |
9,863 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-R | Bulk | Obsolete | Polymeric | 60V | 500 mA | 1 A | 40 A | 4 s | 410 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) |
|
MF-R065-0-99PTC RESET FUSE 60V 650MA RADIAL |
6,298 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-R | Bulk | Obsolete | Polymeric | 60V | 650 mA | 1.3 A | 40 A | 5.3 s | 270 mOhms | 720 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.382" Dia x 0.122" T (9.70mm x 3.10mm) | 0.598" (15.20mm) | - | 0.201" (5.10mm) |
|
MF-R075/90-0PTC RESET FUSE 90V 750MA RADIAL |
7,901 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-R/90 | Bulk | Obsolete | Polymeric | 90V | 750 mA | 1.5 A | 10 A | 60 s | 370 mOhms | 1.65 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.409" Dia x 0.122" T (10.40mm x 3.10mm) | 0.630" (16.00mm) | - | 0.201" (5.10mm) |

