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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-R1-B-0.5PTC RESET FUSE 60V 120MA RADIAL |
28 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, TRF250 | Bag | Active | Polymeric | 60V (250V Int) | 120 mA | 240 mA | 3 A | 1 s | 6 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) |
|
250R145ZRPTC RESET FUSE 60V 145MA RADIAL |
9,512 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 250R | Cut Tape (CT) | Active | Polymeric | 60V (250V Int) | 145 mA | 290 mA | 3 A | 2.5 s | 3 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) | - | 0.201" (5.10mm) |
|
PTCCL05H390HBEPTC RESET FUSE 265V 39MA RADIAL |
19 | - |
|
Datasheet |
Radial, Disc | PTCCL - 265V | Bulk | Active | Ceramic | 265V | 39 mA | 59 mA | 300 mA | - | - | - | 260 Ohms | 0°C ~ 70°C | - | - | - | Through Hole | 0.197" Dia x 0.217" T (5.00mm x 5.50mm) | 0.394" (10.00mm) | - | 0.197" (5.00mm) |
|
PTCCL05H271DBEPTC RESET FUSE 30V 270MA RADIAL |
7,972 | - |
|
Datasheet |
Radial, Disc | PTCCL - 30V | Bulk | Active | Ceramic | 30V | 270 mA | 405 mA | 2.5 A | - | - | - | 6 Ohms | -40°C ~ 85°C | - | - | - | Through Hole | 0.197" Dia x 0.157" T (5.00mm x 4.00mm) | 0.394" (10.00mm) | - | 0.197" (5.00mm) |
|
|
LR4-260SFPTC RESET FUSE 15V 2.6A STRAP |
9,327 | - |
|
Datasheet |
Strap | PolySwitch®, LR4 | Bag | Active | Polymeric | 15V | 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) | - | - | - |
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AGRF800PTC RESET FUSE 16V 8A RADIAL |
14 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, AGRF | Bag | Active | Polymeric | 16V | 8 A | 15 A | 100 A | 5.5 s | 4.9 mOhms | 17.5 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.500" L x 0.118" W (12.70mm x 3.00mm) | 0.874" (22.20mm) | - | 0.199" (5.05mm) |
|
|
TRF250-184PTC RESET FUSE 100V 184MA RADIAL |
4,719 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, TRF250 | Bag | Active | Polymeric | 100V (250V Int) | 184 mA | 1 A | 10 A | 1.3 s | 1.2 Ohms | 3.1 Ohms | - | 0°C ~ 85°C | - | - | - | Through Hole | 0.303" Dia x 0.181" T (7.70mm x 4.60mm) | 0.413" (10.50mm) | - | 0.197" (5.00mm) |
|
MF-PSML075/6-2PTC RESET FUSE 6V 750A 0805 |
9,616 | - |
|
Datasheet |
0805 (2012 Metric), Concave | Multifuse®, MF-PSML/X | Tape & Reel (TR) | Active | Polymeric | 6V | 750 mA | 1.5 A | 50 A | 200 ms | 40 mOhms | 300 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.085" L x 0.053" W (2.15mm x 1.35mm) | - | 0.028" (0.70mm) | - |
|
RXEF375KPTC RESET FUSE 72V 3.75A RADIAL |
7,924 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RXEF | Bag | Active | Polymeric | 72V | 3.75 A | 7.5 A | 40 A | 24 s | 30 mOhms | 80 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 1.035" Dia x 0.118" T (26.30mm x 3.00mm) | 1.224" (31.10mm) | - | 0.400" (10.15mm) |
|
PTCCL07H411DBEPTC RESET FUSE 30V 410MA RADIAL |
17 | - |
|
Datasheet |
Radial, Disc | PTCCL - 30V | Bulk | Active | Ceramic | 30V | 410 mA | 615 mA | 4.5 A | - | - | - | 3 Ohms | -40°C ~ 85°C | - | - | - | Through Hole | 0.276" Dia x 0.157" T (7.00mm x 4.00mm) | 0.472" (12.00mm) | - | 0.197" (5.00mm) |
|
PTCCL07H141HBEPTC RESET FUSE 265V 140MA RADIAL |
8,770 | - |
|
Datasheet |
Radial, Disc | PTCCL - 265V | Bulk | Active | Ceramic | 265V | 140 mA | 210 mA | 800 mA | - | - | - | 29 Ohms | 0°C ~ 70°C | - | - | - | Through Hole | 0.276" Dia x 0.217" T (7.00mm x 5.50mm) | 0.472" (12.00mm) | - | 0.197" (5.00mm) |
|
RGEF1400-1PTC RESET FUSE 16V 14A RADIAL |
57 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RGEF | Bag | Active | Polymeric | 16V | 14 A | 23.8 A | 100 A | 9 s | 2.6 mOhms | 6.4 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.925" L x 0.114" W (23.50mm x 2.90mm) | 1.098" (27.90mm) | - | 0.400" (10.15mm) |
|
|
B59955C0160A070PTC RESET FUSE 20V 950MA RADIAL |
2,079 | - |
|
Datasheet |
Radial, Disc | B59955 | Bulk | Active | Ceramic | 20V | 950 mA | 1.9 A | 5.5 A | - | - | - | 800 mOhms | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.532" Dia x 0.138" T (13.50mm x 3.50mm) | 0.669" (17.00mm) | - | 0.197" (5.00mm) |
|
RGEF1200-2PTC RESET FUSE 16V 12A RADIAL |
6,087 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RGEF | Tape & Reel (TR) | Active | Polymeric | 16V | 12 A | 20.4 A | 100 A | 7.5 s | 3.3 mOhms | 8.6 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.670" L x 0.115" W (16.95mm x 2.90mm) | 1.102" (28.00mm) | - | 0.400" (10.15mm) |
|
|
16R800GFPTC RESET FUSE 16V 8A RADIAL |
6,196 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 16R | Bulk | Active | Polymeric | 16V | 8 A | 13.6 A | 100 A | 5 s | 5.6 mOhms | 17.5 mOhms | - | -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) |
|
LVR125K-240PTC RESET FUSE |
11 | - |
|
Datasheet |
Radial, Disc | LVR | Bulk | Active | Polymeric | 240V (265V Int) | 1.25 A | 2.5 A | 12.5 A | 23 s | 165 mOhms | 440 mOhms | 253 mOhms | -20°C ~ 85°C | - | - | - | Through Hole | 0.835" Dia (21.20mm) | 1.252" (31.80mm) | - | 0.400" (10.15mm) |
|
PTSLR18126V500PTC RESET FUSE 6V 5A 1812 |
2,719 | - |
|
Datasheet |
1812 (4532 Metric), Concave | PTSLR1812 | Tape & Reel (TR) | Active | Polymeric | 6V | 5 A | 10 A | 50 A | 2 s | 1 mOhms | 13 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.179" L x 0.128" W (4.55mm x 3.24mm) | - | 0.047" (1.20mm) | - |
|
|
YS5921PTOPTC RESET FUSE 120V RADIAL DISC |
9,009 | - |
|
Datasheet |
Radial, Disc | PTO | Bulk | Active | Ceramic | 120V | - | - | - | - | - | - | 200 Ohms | 10°C ~ 55°C | - | - | - | Through Hole | 0.300" Dia x 0.200" T (7.62mm x 5.08mm) | 0.300" (7.62mm) | - | 0.150" (3.81mm) |
|
TRF600-250PTC RESET FUSE 250V 250MA RADIAL |
2,888 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, TRF600 | Bulk | Active | Polymeric | 250V (600V Int) | 250 mA | 850 mA | 3 A | 1 s | 1 Ohms | 7 Ohms | 4.3 Ohms | -40°C ~ 85°C | - | - | - | Through Hole | 0.591" L x 0.181" W (15.00mm x 4.60mm) | 0.571" (14.50mm) | - | 0.197" (5.00mm) |
|
SMDCH125F/24-02PTC RESET FUSE 24V 1.25A 2920 |
9,413 | - |
|
Datasheet |
2920 (7351 Metric), Concave | SMDC | Tape & Reel (TR) | Active | Polymeric | 24V | 1.25 A | 2.5 A | 20 A | 500 ms | - | - | - | - | - | - | - | Surface Mount | 0.295" L x 0.201" W (7.50mm x 5.10mm) | - | 0.055" (1.40mm) | - |

