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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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0ZRC0300FF1APTC RESET FUSE 90V 3A RADIAL |
801 | - |
|
Datasheet |
Radial, Disc | 0ZRC | Box | Active | Polymeric | 90V | 3 A | 6 A | 40 A | 19.8 s | 40 mOhms | 100 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.980" L x 0.122" W (24.90mm x 3.10mm) | 1.181" (30.00mm) | - | 0.402" (10.20mm) |
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MF-RX012/250-2PTC RESET FUSE 60V 120MA RADIAL |
391 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RX/250 | Tape & Reel (TR) | Active | Polymeric | 60V (250V Int) | 120 mA | - | 3 A | - | 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) | - | 0.201" (5.10mm) |
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RXEF185PTC RESET FUSE 72V 1.85A RADIAL |
116 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RXEF | Bag | Active | Polymeric | 72V | 1.85 A | 3.7 A | 40 A | 12.6 s | 80 mOhms | 190 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.689" Dia x 0.118" T (17.50mm x 3.00mm) | 0.882" (22.40mm) | - | 0.199" (5.05mm) |
|
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0ZRP0300FF1APTC RESET FUSE 60V 3A RADIAL |
829 | - |
|
Datasheet |
Radial, Disc | 0ZRP | Bulk | Active | Polymeric | 60V | 3 A | 6 A | 40 A | 19.8 s | 30 mOhms | 80 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.650" L x 0.142" W (16.50mm x 3.60mm) | 0.835" (21.20mm) | - | 0.201" (5.10mm) |
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RHEF450PTC RESET FUSE 16V 4.5A RADIAL |
248 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RHEF | Bag | Active | Polymeric | 16V | 4.5 A | 7.8 A | 100 A | 3 s | 22 mOhms | 54 mOhms | - | -40°C ~ 125°C | - | - | - | Through Hole | 0.409" L x 0.118" W (10.40mm x 3.00mm) | 0.614" (15.60mm) | - | 0.199" (5.05mm) |
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RHEF300PTC RESET FUSE 16V 3A RADIAL |
470 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RHEF | Bag | Active | Polymeric | 16V | 3 A | 6 A | 100 A | 5 s | 33 mOhms | 79 mOhms | - | -40°C ~ 125°C | - | - | - | Through Hole | 0.350" Dia x 0.118" T (8.90mm x 3.00mm) | 0.543" (13.80mm) | - | 0.199" (5.05mm) |
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SMD2920B500TF/16PTC RESET FUSE 16V 5A 2920 |
105 | - |
|
Datasheet |
2920 (7351 Metric), Concave | SMD2920 | Tape & Reel (TR) | Active | Polymeric | 16V | 5 A | 10 A | 40 A | 5 s | 5 mOhms | 31 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.063" (1.60mm) | - |
|
2920L050/72DRPOLYSWITCH RESETTABLE PPTC |
321 | - |
|
Datasheet |
2920 (7351 Metric), Concave | POLY-FUSE®, 2920L | Tape & Reel (TR) | Active | Polymeric | 72V | 500 mA | 1 A | 10 A | 5 s | 300 mOhms | 1.5 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.049" (1.25mm) | - |
|
TRF250-080TPTC RESET FUSE 60V 80MA RADIAL |
740 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, TRF250 | Bag | Active | Polymeric | 60V (250V Int) | 80 mA | 160 mA | 3 A | 4 s | 15 Ohms | 33 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.228" Dia x 0.181" T (5.80mm x 4.60mm) | 0.390" (9.90mm) | - | 0.197" (5.00mm) |
|
MF-RX300/72-2PTC RESET FUSE 72V 3A RADIAL |
1,336 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RX/72 | Tape & Reel (TR) | Active | Polymeric | 72V | 3 A | 6 A | 40 A | 19.8 s | 40 mOhms | 100 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.814" L x 0.122" W (20.67mm x 3.10mm) | 1.050" (26.67mm) | - | 0.402" (10.20mm) |
|
|
LVR040KPTC RESET FUSE 240V 400MA RADIAL |
362 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, LVR | Bag | Active | Polymeric | 240V (265V Int) | 400 mA | 900 mA | 5.5 A | 24 s | 600 mOhms | 1.9 Ohms | - | -20°C ~ 85°C | - | - | - | Through Hole | 0.453" L x 0.150" W (11.50mm x 3.80mm) | 0.823" (20.90mm) | - | 0.200" (5.08mm) |
|
RKEF375PTC RESET FUSE 60V 3.75A RADIAL |
896 | - |
|
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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PICOASMDCH010F-2PTC RESET FUSE 16V 100MA 0805 |
681 | - |
|
Datasheet |
0805 (2012 Metric), Concave | PolySwitch®, picoASMD | Tape & Reel (TR) | Active | Polymeric | 16V | 100 mA | 600 mA | 40 A | 1.5 s | 1 Ohms | 10 Ohms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Surface Mount | 0.083" L x 0.055" W (2.10mm x 1.40mm) | - | 0.031" (0.78mm) | - |
|
0ZAF0012FF28LINE VOLTAGE RATED SURFACE MOUNT |
347 | - |
|
Datasheet |
2920 (7351 Metric), Concave | - | Tape & Reel (TR) | Active | Polymeric | 240V (250V Int) | 120 mA | 300 mA | 1.2 A | 15 s | 6 Ohms | 20 Ohms | 14 Ohms | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.102" (2.60mm) | - |
|
|
30R110UPRPTC RESET FUSE 30V 1.1A RADIAL |
289 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 30R | Cut Tape (CT) | Active | Polymeric | 30V | 1.1 A | 2.2 A | 40 A | 6.6 s | 50 mOhms | 170 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.291" L x 0.118" W (7.40mm x 3.00mm) | 0.559" (14.20mm) | - | 0.201" (5.10mm) |
|
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0ZRM0100FF1EPTC RESET FUSE 120V 1A RADIAL |
852 | - |
|
Datasheet |
Radial, Disc | 0ZRM | Box | Active | Polymeric | 120V | 1 A | 2 A | 10 A | 15 s | 180 mOhms | 470 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.453" Dia x 0.161" T (11.50mm x 4.10mm) | 0.791" (20.10mm) | - | 0.201" (5.10mm) |
|
2920L150/60MRPOLYSWITCH RESETTABLE PPTC |
297 | - |
|
Datasheet |
2920 (7351 Metric), Concave | POLY-FUSE®, 2920L | Tape & Reel (TR) | Active | Polymeric | 60V | 1.5 A | 3 A | 20 A | 5 s | 70 mOhms | 250 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.071" (1.80mm) | - |
|
PTCCL05H280HBEPTC RESET FUSE 265V 28MA RADIAL |
872 | - |
|
Datasheet |
Radial, Disc | PTCCL - 265V | Bulk | Active | Ceramic | 265V | 28 mA | 42 mA | 200 mA | - | - | - | 500 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) |
|
PTR016V1500-BKPTC RESET FUSE 16V 15A RADIAL |
190 | - |
|
Datasheet |
Radial, Disc | PTR016V | Bulk | Active | Polymeric | 16V | 15 A | 25.5 A | 100 A | 10 s | 2 mOhms | 7 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.989" L x 0.122" W (25.10mm x 3.10mm) | 1.142" (29.00mm) | - | 0.394" (10.00mm) |
|
MF-RHT200/32-0PTC RESET FUSE 32V 2A RADIAL |
928 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RHT | Bag | Active | Polymeric | 32V | 2 A | 3.8 A | 50 A | 3 s | 45 mOhms | 110 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.370" Dia x 0.118" T (9.40mm x 3.00mm) | 0.551" (14.00mm) | - | 0.201" (5.10mm) |

