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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
RF5053-000PICOASMDC050S-2 |
9,985 | - |
|
Datasheet |
0805 (2012 Metric), Concave | PolySwitch® picoASMDC | Tape & Reel (TR) | Active | Polymeric | 6V | 500 mA | 1 A | 100 A | 100 ms | 150 mOhms | 800 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.083" L x 0.055" W (2.10mm x 1.40mm) | - | 0.037" (0.93mm) | - |
|
RF5051-000PICOASMDC020S-2 |
9,957 | - |
|
Datasheet |
0805 (2012 Metric), Concave | PolySwitch® picoASMDC | Tape & Reel (TR) | Active | Polymeric | 9V | 200 mA | 470 mA | 100 A | 100 ms | 750 mOhms | 3.2 Ohms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.083" L x 0.055" W (2.10mm x 1.40mm) | - | 0.027" (0.68mm) | - |
|
RF5052-000PICOASMDC035S-2 |
9,834 | - |
|
Datasheet |
0805 (2012 Metric), Concave | PolySwitch® picoASMDC | Tape & Reel (TR) | Active | Polymeric | 6V | 350 mA | 750 mA | 100 A | 200 ms | 350 mOhms | 1.4 Ohms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.083" L x 0.055" W (2.10mm x 1.40mm) | - | 0.027" (0.68mm) | - |
|
LR4-250UFPTC RESET FUSE 15V 2.5A STRAP |
9,296 | - |
|
- |
Strap | PolySwitch®, LR4 | Bulk | Obsolete | Polymeric | 15V | 2.5 A | - | 100 A | - | - | - | - | - | - | - | - | User Defined | - | - | - | - |
|
RXEF375-0.476PTC RESET FUSE 72V 3.75A RADIAL |
6,980 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RXEF | Bulk | Obsolete | Polymeric | 72V | 3.75 A | 7.5 A | 40 A | 24 s | 30 mOhms | 80 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 1.071" Dia x 0.118" T (27.20mm x 3.00mm) | 1.252" (31.80mm) | - | 0.400" (10.15mm) |
|
|
CMF-RL35-10-0PTC RESET FUSE 220V 75MA RADIAL |
5,015 | - |
|
Datasheet |
Radial, Disc | CMF-RL | Bulk | Active | Ceramic | 220V (600V Int) | 75 mA | 150 mA | 3 A | 150 ms | - | - | 35 Ohms | -40°C ~ 125°C | - | - | - | Through Hole | 0.386" L x 0.197" W (9.80mm x 5.00mm) | 0.532" (13.50mm) | - | 0.200" (5.08mm) |
|
|
CMF-RL35A-10-0PTC RESET FUSE 220V 75MA RADIAL |
2,132 | - |
|
Datasheet |
Radial, Disc | CMF-RL | Bulk | Active | Ceramic | 220V (600V Int) | 75 mA | 150 mA | 3 A | 150 ms | - | - | 35 Ohms | -40°C ~ 125°C | - | - | - | Through Hole | 0.295" L x 0.220" W (7.50mm x 5.60mm) | 0.512" (13.00mm) | - | 0.197" (5.00mm) |
|
|
CMF-RL55-10-0PTC RESET FUSE 220V 65MA RADIAL |
9,616 | - |
|
Datasheet |
Radial, Disc | CMF-RL | Bulk | Active | Ceramic | 220V (600V Int) | 65 mA | 150 mA | 3 A | 150 ms | - | - | 55 Ohms | -40°C ~ 125°C | - | - | - | Through Hole | 0.386" L x 0.197" W (9.80mm x 5.00mm) | 0.532" (13.50mm) | - | 0.200" (5.08mm) |
|
MF-LS300PTC RESET FUSE 24V 3A STRAP |
7,683 | - |
|
Datasheet |
Strap | Multifuse®, MF-LS | Bulk | Active | Polymeric | 24V | 3 A | 6.3 A | 100 A | 4 s | 15 mOhms | 55 mOhms | - | -40°C ~ 85°C | - | - | - | User Defined | 1.185" L x 0.522" W (30.10mm x 13.25mm) | - | 0.043" (1.10mm) | - |
|
MF-SVS210-0PTC RESET FUSE 10V 2.1A STRAP |
7,570 | - |
|
Datasheet |
Strap | Multifuse®, MF-SVS | Bulk | Active | Polymeric | 10V | 2.1 A | 5 A | 100 A | 5 s | 10 mOhms | 40 mOhms | - | -40°C ~ 85°C | - | - | - | User Defined | 0.866" L x 0.205" W (22.00mm x 5.20mm) | - | 0.035" (0.90mm) | - |
|
MF-SVS175NL-0PTC 1.75A 10V AXIAL STRAP 85'C S |
4,800 | - |
|
Datasheet |
Strap | Multifuse®, MF-SVS | Bulk | Active | Polymeric | 10V | 1.75 A | 4.2 A | 100 A | 5 s | 17 mOhms | 63 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | User Defined | 1.063" L x 0.148" W (27.00mm x 3.75mm) | - | 0.035" (0.90mm) | - |
|
|
0ZRP0300FF2APTC RESET FUSE 60V 3A RADIAL |
7,289 | - |
|
Datasheet |
Radial, Disc | 0ZRP | Tape & Reel (TR) | 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 0.118" W (16.50mm x 3.00mm) | 0.835" (21.20mm) | - | 0.201" (5.10mm) |
|
2322 661 91066PTC RESET FUSE 100V 85MA RADIAL |
4,048 | - |
|
Datasheet |
Radial, Disc | - | Tape & Reel (TR) | Obsolete | Ceramic | 100V | 85 mA | 280 mA | - | 4 s | - | - | 4 Ohms | - | - | - | - | Through Hole | 0.276" Dia x 0.157" T (7.00mm x 4.00mm) | 0.433" (11.00mm) | - | 0.197" (5.00mm) |
|
RXEF375K-0.144PTC RESET FUSE 72V 3.75A RADIAL |
4,374 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RXEF | Bulk | Obsolete | Polymeric | 72V | 3.75 A | 7.5 A | 40 A | 24 s | 30 mOhms | 80 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 1.071" Dia x 0.118" T (27.20mm x 3.00mm) | 1.252" (31.80mm) | - | 0.400" (10.15mm) |
|
0ZRA1100FF1APTC RESET FUSE 16V 11A RADIAL |
7,724 | - |
|
Datasheet |
Radial, Disc | 0ZRA | Box | Active | Polymeric | 16V | 11 A | 18.7 A | 100 A | 13.5 s | 3 mOhms | 10 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.689" L x 0.118" W (17.50mm x 3.00mm) | 1.024" (26.00mm) | - | 0.201" (5.10mm) |
|
PTR030V0110-TR1PTC RESET FUSE 30V 1.1A RADIAL |
7,501 | - |
|
Datasheet |
Radial, Disc | PTR030V | Tape & Reel (TR) | 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) | - | 0.197" (5.00mm) |
|
PFRX.185.2PTC RESET FUSE 60V 1.85A RADIAL |
4,331 | - |
|
Datasheet |
Radial, Disc | PFRX | Tape & Reel (TR) | Obsolete | Polymeric | 60V | 1.85 A | 3.7 A | 40 A | 12.6 s | 80 mOhms | 190 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.701" Dia x 0.122" T (17.80mm x 3.10mm) | 0.902" (22.90mm) | - | 0.201" (5.10mm) |
|
PFRX.160.2PTC RESET FUSE 60V 1.6A RADIAL |
5,152 | - |
|
Datasheet |
Radial, Disc | PFRX | Tape & Reel (TR) | Obsolete | Polymeric | 60V | 1.6 A | 3.2 A | 40 A | 11.4 s | 90 mOhms | 220 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.642" Dia x 0.122" T (16.30mm x 3.10mm) | 0.839" (21.30mm) | - | 0.201" (5.10mm) |
|
|
0ZCD0050FF2CPTC RESET FUSE 60V 500MA 2920 |
2,768 | - |
|
Datasheet |
2920 (7351 Metric) | 0ZCD | Tape & Reel (TR) | Obsolete | Polymeric | 60V | 500 mA | 1 A | 10 A | 4 s | 300 mOhms | 1.4 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.061" (1.55mm) | - |
|
|
0ZCD0110FF2CPTC RESET FUSE 33V 1.1A 2920 |
4,386 | - |
|
- |
2920 (7351 Metric) | 0ZCD | Tape & Reel (TR) | Obsolete | Polymeric | 33V | 1.1 A | 2.2 A | 40 A | 500 ms | 90 mOhms | 410 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.039" (1.00mm) | - |

