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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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MF-RX250-AP-14PTC RESET FUSE 60V 2.5A RADIAL |
6,874 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RX | Tape & Box (TB) | Obsolete | Polymeric | 60V | 2.5 A | 5 A | 40 A | 15.6 s | 50 mOhms | 130 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.839" Dia x 0.122" T (21.30mm x 3.10mm) | 1.050" (26.67mm) | - | 0.402" (10.20mm) |
|
MF-RX110-AP-14PTC RESET FUSE 60V 1.1A RADIAL |
6,106 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RX | Tape & Box (TB) | Obsolete | Polymeric | 60V | 1.1 A | 2.2 A | 40 A | 8.2 s | 150 mOhms | 380 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.512" Dia x 0.122" T (13.00mm x 3.10mm) | 0.902" (22.90mm) | - | 0.201" (5.10mm) |
|
MF-RX135-AP-14PTC RESET FUSE 60V 1.35A RADIAL |
7,908 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RX | Tape & Box (TB) | Obsolete | Polymeric | 60V | 1.35 A | 2.7 A | 40 A | 9.6 s | 120 mOhms | 300 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.571" Dia x 0.122" T (14.50mm x 3.10mm) | 0.939" (23.84mm) | - | 0.402" (10.20mm) |
|
MF-RX160-AP-14PTC RESET FUSE 60V 1.6A RADIAL |
3,221 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RX | Tape & Box (TB) | 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) | 1.039" (26.40mm) | - | 0.402" (10.20mm) |
|
MF-RX375-2-14PTC RESET FUSE 60V 3.75A RADIAL |
6,383 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RX | Tape & Box (TB) | Obsolete | Polymeric | 60V | 3.75 A | 7.5 A | 40 A | 24 s | 30 mOhms | 80 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 1.118" Dia x 0.122" T (28.40mm x 3.10mm) | 1.319" (33.50mm) | - | 0.402" (10.20mm) |
|
MF-RX160-2-14PTC RESET FUSE 60V 1.6A RADIAL |
4,251 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RX | Tape & Box (TB) | 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) | 0.939" (23.84mm) | - | 0.402" (10.20mm) |
|
MF-RX185-AP-14PTC RESET FUSE 60V 1.85A RADIAL |
8,109 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RX | Tape & Box (TB) | 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) | 1.050" (26.67mm) | - | 0.402" (10.20mm) |
|
0007770020RAYCHEM FUSE (RUE 185) 70020 |
9,791 | - |
|
- |
- | * | Bulk | Obsolete | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
R1206-010PTC RESET FUSE 60V 100MA 1206 |
6,629 | - |
|
Datasheet |
1206 (3216 Metric) | R1206 | Tape & Reel (TR) | Active | Polymeric | 60V | 100 mA | 250 mA | 100 A | 1 s | 1.6 Ohms | 15 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.128" L x 0.065" W (3.25mm x 1.65mm) | - | 0.033" (0.85mm) | - |
|
R1206-010-RPTC RESET FUSE 60V 100MA 1206 |
9,773 | - |
|
Datasheet |
1206 (3216 Metric), Concave | R1206 | Tape & Reel (TR) | Active | Polymeric | 60V | 100 mA | 250 mA | 100 A | 1 s | 1.6 Ohms | 15 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.128" L x 0.065" W (3.25mm x 1.65mm) | - | 0.033" (0.85mm) | - |
|
PSR-28690-2PSR RESET FUSE |
2,979 | - |
|
- |
- | * | Tape & Reel (TR) | Obsolete | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
NANOSMD175LR-EPTC RESET FUSE 6V 1.75A 1206 |
7,574 | - |
|
- |
- | * | Tape & Reel (TR) | Obsolete | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
PSR-28445-E-2PSR RESET FUSE |
2,934 | - |
|
- |
- | * | Tape & Reel (TR) | Obsolete | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
MICROSMD450LR-XC-2PTC RESET FUSE 12V 4.5A 1206 |
5,947 | - |
|
- |
- | * | Tape & Reel (TR) | Obsolete | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
PSR-29330-CPSR RESET FUSE |
2,935 | - |
|
- |
- | * | Tape & Reel (TR) | Obsolete | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
PSR-28473-D-2PSR RESET FUSE |
2,832 | - |
|
- |
- | * | Tape & Reel (TR) | Obsolete | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
NANOSMD550LR-2PTC RESET FUSE 6V 5.5A 1206 |
3,359 | - |
|
- |
- | * | Tape & Reel (TR) | Obsolete | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
PSR-29138-C-2PSR RESET FUSE |
6,299 | - |
|
- |
- | * | Tape & Reel (TR) | Obsolete | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
PSR-29131-2PSR RESET FUSE |
3,418 | - |
|
- |
- | * | Tape & Reel (TR) | Obsolete | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
PSR-28120-2PSR RESET FUSE |
4,192 | - |
|
- |
- | * | Tape & Reel (TR) | Obsolete | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |

