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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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0ZRN0300FF1EPTC RESET FUSE 16V 3A RADIAL |
990 | - |
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Datasheet |
Radial, Disc | 0ZRN | Bulk | Active | Polymeric | 16V | 3 A | 6 A | 100 A | 5 s | 33 mOhms | 79 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.346" L x 0.118" W (8.80mm x 3.00mm) | 0.543" (13.80mm) | - | 0.201" (5.10mm) |
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B59980C0130A070PTC RESET FUSE 80V 85MA RADIAL |
961 | - |
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Datasheet |
Radial, Disc | B59980 | Bulk | Active | Ceramic | 80V | 85 mA | 130 mA | 700 mA | - | - | - | 62 Ohms | -40°C ~ 125°C | - | - | - | Through Hole | 0.157" Dia x 0.138" T (4.00mm x 3.50mm) | 0.295" (7.50mm) | - | 0.197" (5.00mm) |
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AHEF070PTC RESET FUSE 32V 700MA RADIAL |
473 | - |
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Datasheet |
Radial, Disc | PolySwitch®, AHEF | Bag | Active | Polymeric | 32V | 700 mA | 1.4 A | 100 A | 3.2 s | 230 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) | - | 0.118" (3.00mm) |
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PTSLR12106V500PTC RESET FUSE 6V 5A 1210 |
126 | - |
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Datasheet |
1210 (3225 Metric), Concave | PTSLR1210 | Tape & Reel (TR) | Active | Polymeric | 6V | 5 A | 10 A | 50 A | 2 s | 2 mOhms | 12 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.101" W (3.22mm x 2.58mm) | - | 0.047" (1.20mm) | - |
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2920L300DRPTC RESET FUSE 6V 3A 2920 |
906 | - |
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Datasheet |
2920 (7351 Metric), Concave | POLY-FUSE®, 2920L | Tape & Reel (TR) | Active | Polymeric | 6V | 3 A | 5 A | 40 A | 20 s | 15 mOhms | 48 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.289" L x 0.202" W (7.35mm x 5.12mm) | - | 0.049" (1.25mm) | - |
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AHS200-2PTC RESET FUSE 16V 2A 2SMD |
783 | - |
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Datasheet |
2-SMD | PolySwitch®, AHS | Tape & Reel (TR) | Active | Polymeric | 16V | 2 A | 4 A | 70 A | 13.4 s | 50 mOhms | 140 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Surface Mount | 0.343" L x 0.250" W (8.70mm x 6.36mm) | - | 0.118" (3.00mm) | - |
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MF-NSML500/6-2PTC RESET FUSE 6V 5A 1206 |
747 | - |
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Datasheet |
1206 (3216 Metric), Concave | Multifuse®, MF-NSML/X | Tape & Reel (TR) | Active | Polymeric | 6V | 5 A | 10 A | 50 A | 5 s | 2 mOhms | 11 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.128" L x 0.063" W (3.25mm x 1.60mm) | - | 0.039" (1.00mm) | - |
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TRF250-180PTC RESET FUSE 100V 180MA RADIAL |
108 | - |
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Datasheet |
Radial, Disc | PolySwitch®, TRF250 | Bulk | Active | Polymeric | 100V (250V Int) | 180 mA | 650 mA | 10 A | 2 s | 800 mOhms | 4 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.354" Dia x 0.150" T (9.00mm x 3.80mm) | 0.472" (12.00mm) | - | 0.197" (5.00mm) |
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LVR025S-1PTC RESET FUSE 240V 250MA RADIAL |
400 | - |
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Datasheet |
Radial, Disc | PolySwitch®, LVR | Bag | Active | Polymeric | 240V (265V Int) | 250 mA | 560 mA | 3.5 A | 18.5 s | 1.3 Ohms | 3.8 Ohms | - | -20°C ~ 85°C | - | - | - | Through Hole | 0.378" L x 0.150" W (9.60mm x 3.80mm) | 0.685" (17.40mm) | - | 0.200" (5.08mm) |
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TRF250-145UPTC RESET FUSE 60V 145MA RADIAL |
540 | - |
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Datasheet |
Radial, Disc | PolySwitch®, TRF250 | Bag | Active | Polymeric | 60V (250V Int) | 145 mA | 290 mA | 3 A | 4 s | 3.5 Ohms | 14 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.236" L x 0.150" W (6.00mm x 3.80mm) | 0.394" (10.00mm) | - | 0.197" (5.00mm) |
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AHRF450S-1PTC RESET FUSE 16V 4.5A RADIAL |
1,000 | - |
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Datasheet |
Radial, Disc | PolySwitch®, AHRF | Bag | Active | Polymeric | 16V | 4.5 A | 8.7 A | 100 A | 4 s | 17 mOhms | 54 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.409" Dia x 0.122" T (10.40mm x 3.10mm) | 0.563" (14.30mm) | - | 0.199" (5.05mm) |
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RKEF375KPTC RESET FUSE 60V 3.75A RADIAL |
806 | - |
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Datasheet |
Radial, Disc | PolySwitch®, RKEF | Bag | Active | Polymeric | 60V | 3.75 A | 7.5 A | 40 A | 22 s | 17 mOhms | 60 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.650" L x 0.118" W (16.50mm x 3.00mm) | 0.992" (25.20mm) | - | 0.199" (5.05mm) |
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VTP210SFPTC RESET FUSE 16V 2.1A STRAP |
688 | - |
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Datasheet |
Strap | PolySwitch®, VTP | Bulk | Active | Polymeric | 16V | 2.1 A | 4.7 A | 100 A | 5 s | 18 mOhms | 60 mOhms | - | -40°C ~ 85°C | - | - | - | User Defined | 0.909" L x 0.209" W (23.10mm x 5.30mm) | - | 0.032" (0.80mm) | - |
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PTCCL05H940EBEPTC RESET FUSE 60V 94MA RADIAL |
671 | - |
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Datasheet |
Radial, Disc | PTCCL - 60V | Bulk | Active | Ceramic | 60V | 94 mA | 145 mA | 800 mA | - | - | - | 50 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) |
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PICOASMDC010S-2PTC RESET FUSE 15V 100MA 0805 |
504 | - |
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Datasheet |
0805 (2012 Metric) | PolySwitch®, picoASMDC | Tape & Reel (TR) | Active | Polymeric | 15V | 100 mA | 300 mA | 20 A | 600 ms | 1.5 Ohms | 11 Ohms | - | - | Automotive | AEC-Q200 | - | Surface Mount | 0.083" L x 0.055" W (2.10mm x 1.40mm) | - | 0.040" (1.02mm) | - |
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AHRF550PTC RESET FUSE 16V 5.5A RADIAL |
219 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, AHRF | Bag | Active | Polymeric | 16V | 5.5 A | 10 A | 100 A | 6 s | 13 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) | - | 0.199" (5.05mm) |
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60R075XUPTC RESET FUSE 60V 750MA RADIAL |
459 | - |
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Datasheet |
Radial, Disc | POLY-FUSE®, 60R | Bulk | Active | Polymeric | 60V | 750 mA | 1.5 A | 40 A | 6.3 s | 250 mOhms | 600 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.402" Dia x 0.122" T (10.20mm x 3.10mm) | 0.591" (15.00mm) | - | 0.201" (5.10mm) |
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PTSLR12066V350PTC RESET FUSE 6V 3.5A 1206 |
227 | - |
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Datasheet |
1206 (3216 Metric), Concave | PTSLR1206 | Tape & Reel (TR) | Active | Polymeric | 6V | 3.5 A | 7 A | 50 A | 5 s | 3 mOhms | 18 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.128" L x 0.065" W (3.25mm x 1.65mm) | - | 0.047" (1.20mm) | - |
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LVR033KPTC RESET FUSE 240V 330MA RADIAL |
214 | - |
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Datasheet |
Radial, Disc | PolySwitch®, LVR | Bag | Active | Polymeric | 240V (265V Int) | 330 mA | 740 mA | 4.5 A | 21 s | 770 mOhms | 2.6 Ohms | - | -20°C ~ 85°C | - | - | - | Through Hole | 0.449" L x 0.150" W (11.40mm x 3.80mm) | 0.748" (19.00mm) | - | 0.200" (5.08mm) |
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AHRF300PTC RESET FUSE 16V 3A RADIAL |
500 | - |
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Datasheet |
Radial, Disc | PolySwitch®, AHRF | Bag | Active | Polymeric | 16V | 3 A | 6.5 A | 100 A | 5 s | 29 mOhms | 79 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.346" L x 0.118" W (8.80mm x 3.00mm) | 0.543" (13.80mm) | - | 0.199" (5.05mm) |

