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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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B59850C0130A070PTC RESET FUSE 265V 200MA RADIAL |
2,142 | - |
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Datasheet |
Radial, Disc | - | Bulk | Active | Ceramic | 265V | 200 mA | 320 mA | 1.5 A | - | - | - | 13 Ohms | 0°C ~ 60°C | - | - | - | Through Hole | 0.433" Dia x 0.197" T (11.00mm x 5.00mm) | 0.571" (14.50mm) | - | 0.197" (5.00mm) |
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B59773B0120A070PTC RESET FUSE 550V RADIAL DISC |
371 | - |
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Datasheet |
Radial, Disc | B59773 | Bulk | Active | Ceramic | 550V | - | 48 mA | 1 A | 3 s | - | - | 500 Ohms | 0°C ~ 60°C | - | - | - | Through Hole | 0.335" Dia x 0.276" T (8.50mm x 7.00mm) | 0.197" (5.00mm) | - | 0.197" (5.00mm) |
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RHEF1500PTC RESET FUSE 16V 15A RADIAL |
609 | - |
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Datasheet |
Radial, Disc | PolySwitch®, RHEF | Bag | Active | Polymeric | 16V | 15 A | 28 A | 100 A | 20 s | 3.2 mOhms | 9.2 mOhms | - | -40°C ~ 125°C | - | - | - | Through Hole | 0.925" L x 0.142" W (23.50mm x 3.60mm) | 1.130" (28.70mm) | - | 0.400" (10.15mm) |
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30R600UMRPTC RESET FUSE 30V 6A RADIAL |
3,214 | - |
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Datasheet |
Radial, Disc | POLY-FUSE®, 30R | Cut Tape (CT) | Active | Polymeric | 30V | 6 A | 12 A | 40 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) | 1.055" (26.80mm) | - | 0.402" (10.20mm) |
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B59860C0120A070PTC RESET FUSE 265V 140MA RADIAL |
1,298 | - |
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Datasheet |
Radial, Disc | - | Bulk | Active | Ceramic | 265V | 140 mA | 280 mA | 1.5 A | - | - | - | 15 Ohms | 0°C ~ 60°C | - | - | - | Through Hole | 0.433" Dia x 0.197" T (11.00mm x 5.00mm) | 0.571" (14.50mm) | - | 0.197" (5.00mm) |
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B59950C0120A070PTC RESET FUSE 80V 320MA RADIAL |
1,265 | - |
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Datasheet |
Radial, Disc | B59950 | Bulk | Active | Ceramic | 80V | 320 mA | 640 mA | 5.5 A | - | - | - | 3.7 Ohms | -40°C ~ 125°C | - | - | - | Through Hole | 0.532" Dia x 0.138" T (13.50mm x 3.50mm) | 0.669" (17.00mm) | - | 0.197" (5.00mm) |
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LR4-900FPTC RESET FUSE 20V 9A STRAP |
23,986 | - |
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Datasheet |
Strap | PolySwitch®, LR4 | Bag | Active | Polymeric | 20V | 9 A | 16.7 A | 100 A | 5 s | 6 mOhms | 14 mOhms | - | -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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B59301P1120A062PTC RESET FUSE 24V 310MA 4032 |
1,915 | - |
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Datasheet |
4032 (1080 Metric) | B59301 | Tape & Reel (TR) | Active | Ceramic | 24V | 310 mA | 640 mA | 1.6 A | - | 1.85 Ohms | - | 3.1 Ohms | -40°C ~ 60°C | Automotive | AEC-Q200 | - | Surface Mount | 0.394" L x 0.315" W (10.00mm x 8.00mm) | - | 0.150" (3.80mm) | - |
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60R185XFPTC RESET FUSE 60V 1.85A RADIAL |
1,479 | - |
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Datasheet |
Radial, Disc | POLY-FUSE®, 60R | Bulk | Active | Polymeric | 60V | 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 0.122" T (16.76mm x 3.10mm) | 0.906" (23.00mm) | - | 0.201" (5.10mm) |
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AHEF750PTC RESET FUSE 32V 7.5A RADIAL |
1,195 | - |
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Datasheet |
Radial, Disc | PolySwitch®, AHEF | Bag | Active | Polymeric | 32V | 7.5 A | 15 A | 100 A | 13 s | 7.4 mOhms | 23 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.830" L x 0.150" W (21.10mm x 3.80mm) | 0.980" (24.90mm) | - | 0.400" (10.15mm) |
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AHRF1500PTC RESET FUSE 16V 15A RADIAL |
2,131 | - |
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Datasheet |
Radial, Disc | PolySwitch®, AHRF | Bulk | Active | Polymeric | 16V | 15 A | 33 A | 100 A | 20 s | 2.7 mOhms | 9.2 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.925" L x 0.138" W (23.50mm x 3.50mm) | 1.130" (28.70mm) | - | 0.400" (10.15mm) |
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B59860C0120A051PTC RESET FUSE 265V 140MA RADIAL |
3,988 | - |
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Datasheet |
Radial, Disc | - | Tape & Reel (TR) | Active | Ceramic | 265V | 140 mA | 280 mA | 1.5 A | - | - | - | 15 Ohms | 0°C ~ 60°C | - | - | - | Through Hole | 0.433" Dia x 0.197" T (11.00mm x 5.00mm) | 0.571" (14.50mm) | - | 0.197" (5.00mm) |
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1812L050/60MR-APTC RESET FUSE 60V 500MA 1812 |
956 | - |
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Datasheet |
1812 (4532 Metric), Concave | POLY-FUSE®, 1812L | Tape & Reel (TR) | Active | Polymeric | 60V | 500 mA | 1 A | 10 A | 150 ms | 150 mOhms | 1 Ohms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.179" L x 0.128" W (4.55mm x 3.24mm) | - | 0.071" (1.80mm) | - |
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30R700UMRPTC RESET FUSE 30V 7A RADIAL |
1,195 | - |
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Datasheet |
Radial, Disc | POLY-FUSE®, 30R | Cut Tape (CT) | Active | Polymeric | 30V | 7 A | 14 A | 40 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) | 1.126" (28.60mm) | - | 0.402" (10.20mm) |
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0ZRS0750FF1APTC RESET FUSE 32V 7.5A RADIAL |
9,147 | - |
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Datasheet |
Radial, Disc | 0ZRS | Bulk | Active | Polymeric | 32V | 7.5 A | 15 A | 100 A | 13 s | 7.4 mOhms | 23 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.831" L x 0.150" W (21.10mm x 3.80mm) | 0.980" (24.90mm) | - | 0.402" (10.20mm) |
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B59840C0120A070PTC RESET FUSE 265V 330MA RADIAL |
415 | - |
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Datasheet |
Radial, Disc | - | Bulk | Active | Ceramic | 265V | 330 mA | 660 mA | 4.1 A | - | - | - | 6 Ohms | 0°C ~ 60°C | - | - | - | Through Hole | 0.689" Dia x 0.197" T (17.50mm x 5.00mm) | 0.827" (21.00mm) | - | 0.197" (5.00mm) |
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PTCCL10H010SBEPTC RESET FUSE 600V 10MA RADIAL |
2,185 | - |
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Datasheet |
Radial, Disc | PTCCL - 600V | Bulk | Active | Ceramic | 600V | 10 mA | 50 mA | 2 A | - | - | - | 400 Ohms | -20°C ~ 85°C | - | - | - | Through Hole | 0.394" Dia x 0.256" T (10.00mm x 6.50mm) | 0.532" (13.50mm) | - | 0.320" (8.12mm) |
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MF-LSMF330/24X-22920 RESETTABLE SMD PPTC 3.3A/24 |
527 | - |
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Datasheet |
2920 (7351 Metric), Concave | Multifuse®, MF-LSMF | Tape & Reel (TR) | Active | Polymeric | 24V | 3.3 A | - | - | - | - | - | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | - | - |
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0805L175SLYRPTC RESET FUSE 6V 1.75A 0805 |
11,815 | - |
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Datasheet |
0805 (2012 Metric), Concave | POLY-FUSE®, LoRho | Tape & Reel (TR) | Active | Polymeric | 6V | 1.75 A | 3.5 A | 50 A | 600 ms | 5 mOhms | 55 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.083" L x 0.053" W (2.10mm x 1.35mm) | - | 0.024" (0.60mm) | - |
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30R900UMRPTC RESET FUSE 30V 9A RADIAL |
20,550 | - |
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Datasheet |
Radial, Disc | POLY-FUSE®, 30R | Cut Tape (CT) | Active | Polymeric | 30V | 9 A | 18 A | 40 A | 20 s | 5 mOhms | 20 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.950" L x 0.120" W (24.10mm x 3.00mm) | 1.244" (31.60mm) | - | 0.402" (10.20mm) |

