Available 24/7 at
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
RS30-110PTC RESET FUSE 30V 1.1A RADIAL |
2,936 | - |
|
Datasheet |
Radial, Disc | RS30 | Bulk | Active | Polymeric | 30V | 1.1 A | 2.2 A | 100 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) |
|
PICOASMDCH016F-2PPTC-MINI-PSW |
6,539 | - |
|
Datasheet |
0805 (2012 Metric), Concave | PolySwitch®, picoASMD | Tape & Reel (TR) | Active | Polymeric | 16V | 160 mA | 680 mA | 40 A | 100 ms | 800 mOhms | 6 Ohms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Surface Mount | 0.083" L x 0.055" W (2.10mm x 1.40mm) | - | 0.031" (0.80mm) | - |
|
|
TRF250-120UST-B-0.5PTC RESET FUSE 60V 120MA RADIAL |
1,626 | - |
|
- |
Radial, Disc | PolySwitch®, TRF250 | Bag | Obsolete | Polymeric | 60V (250V Int) | 120 mA | 240 mA | 3 A | 1 s | 6 Ohms | 16 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) |
|
MF-USML300-2PTC RESET FUSE 6V 3A 1210 |
4,716 | - |
|
Datasheet |
1210 (3225 Metric), Concave | Multifuse®, MF-USML | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 3 A | 6 A | 50 A | 4 s | 4 mOhms | 18 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.024" (0.60mm) | - |
|
MF-USML700-2PTC RESET FUSE 6V 7A 1210 |
7,914 | - |
|
Datasheet |
1210 (3225 Metric), Concave | Multifuse®, MF-USML | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 7 A | 14 A | 50 A | 2 s | 1 mOhms | 13.5 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.047" (1.20mm) | - |
|
RS90-090PTC RESET FUSE 72V 900MA RADIAL |
6,200 | - |
|
Datasheet |
Radial, Disc | RS90 | Bulk | Active | Polymeric | 72V (90V Int) | 900 mA | 1.8 A | 40 A | 7.2 s | 200 mOhms | 470 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.461" Dia x 0.122" T (11.70mm x 3.10mm) | 0.622" (15.80mm) | - | 0.201" (5.10mm) |
|
MF-USML650-2PTC RESET FUSE 6V 6.5A 1210 |
7,423 | - |
|
Datasheet |
1210 (3225 Metric), Concave | Multifuse®, MF-USML | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 6.5 A | 13 A | 50 A | 2 s | 1 mOhms | 14 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.047" (1.20mm) | - |
|
MICROSMD190LR-2PTC RESET FUSE 6V 1.9A 1210 |
3,000 | - |
|
Datasheet |
1210 (3225 Metric), Concave | PolySwitch®, LoRho | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 1.9 A | 4.9 A | 50 A | 4 s | 6 mOhms | - | - | - | - | - | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.039" (1.00mm) | - |
|
|
TRF250-145-2PTC RESET FUSE 60V 145MA RADIAL |
1,700 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, TRF250 | Tape & Reel (TR) | Active | Polymeric | 60V (250V Int) | 145 mA | 290 mA | 3 A | 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) | - | 0.200" (5.08mm) |
|
PICOASMDCH050F-2PPTC-MINI-PSW |
3,844 | - |
|
Datasheet |
0805 (2012 Metric), Concave | PolySwitch®, picoASMD | Tape & Reel (TR) | Active | Polymeric | 16V | 500 mA | 1.7 A | 40 A | 100 ms | 250 mOhms | 1.6 Ohms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Surface Mount | 0.083" L x 0.055" W (2.10mm x 1.40mm) | - | 0.047" (1.20mm) | - |
|
AGRF500-2PTC RESET FUSE 16V 5A RADIAL |
1,640 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, AGRF | Tape & Reel (TR) | Active | Polymeric | 16V | 5 A | 9.4 A | 100 A | 2.5 s | 14 mOhms | 34 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.409" Dia x 0.122" T (10.40mm x 3.10mm) | 0.614" (15.60mm) | - | 0.199" (5.05mm) |
|
TRF250-120ST-RG-B-0.5PTC RESET FUSE 60V 120MA RADIAL |
1,904 | - |
|
- |
Radial, Disc | PolySwitch®, TRF250 | Bag | Obsolete | Polymeric | 60V (250V Int) | 120 mA | 240 mA | 3 A | 2.5 s | 4 Ohms | 16 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) |
|
RS60RB-075PTC RESET FUSE 60V 750MA RADIAL |
1,299 | - |
|
Datasheet |
Radial, Disc | RS60RB | Bulk | Active | Polymeric | 60V | 750 mA | 1.5 A | 40 A | 6.3 s | 250 mOhms | 600 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.409" Dia x 0.122" T (10.40mm x 3.10mm) | 0.598" (15.20mm) | - | 0.201" (5.10mm) |
|
MF-NSML190-2PTC RESET FUSE 6V 1.9A 1206 |
3,372 | - |
|
- |
1206 (3216 Metric), Concave | Multifuse®, MF-NSML | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 1.9 A | 4.9 A | 50 A | 1 s | 5 mOhms | 28 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.128" L x 0.063" W (3.25mm x 1.60mm) | - | 0.024" (0.60mm) | - |
|
MF-NSML200-2PTC RESET FUSE 6V 2A 1206 |
8,591 | - |
|
- |
1206 (3216 Metric), Concave | Multifuse®, MF-NSML | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 2 A | 4 A | 50 A | 1 s | 5 mOhms | 25 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.128" L x 0.063" W (3.25mm x 1.60mm) | - | 0.024" (0.60mm) | - |
|
MF-NSML450-2PTC RESET FUSE 6V 4.5A 1206 |
6,839 | - |
|
- |
1206 (3216 Metric), Concave | Multifuse®, MF-NSML | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 4.5 A | 9 A | 50 A | 2 s | 1 mOhms | 14 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.128" L x 0.063" W (3.25mm x 1.60mm) | - | 0.047" (1.20mm) | - |
|
MICROSMD500LR-2PTC RESET FUSE 6V 5A 1210 |
2,662 | - |
|
- |
1210 (3225 Metric), Concave | PolySwitch®, microSMD | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 5 A | 10 A | 50 A | 2 s | 2 mOhms | 7 mOhms | - | -40°C ~ 80°C | - | - | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.039" (1.00mm) | - |
|
VLP270FPTC RESET FUSE 16V 2.7A STRAP |
42,972 | - |
|
Datasheet |
Strap | PolySwitch®, VLP | Bulk | Active | Polymeric | 16V | 2.7 A | 6.5 A | 60 A | 5 s | 12 mOhms | 36 mOhms | - | -40°C ~ 85°C | - | - | - | User Defined | 0.866" L x 0.201" W (22.00mm x 5.10mm) | - | 0.032" (0.80mm) | - |
|
AGRF800S-1PTC RESET FUSE 16V 8A RADIAL |
9,994 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, AGRF | Bulk | Active | Polymeric | 16V | 8 A | 15 A | 100 A | 5.5 s | 17.5 mOhms | 18.1 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.118" L x 0.118" W (3.00mm x 3.00mm) | 0.874" (22.20mm) | - | 0.199" (5.05mm) |
|
|
VLP210XLFPTC RESET FUSE 16V 2.1A STRAP |
9,655 | - |
|
- |
Strap | PolySwitch®, VLP | Bulk | Obsolete | Polymeric | 16V | 2.1 A | 4.7 A | 100 A | 5 s | 18 mOhms | 60 mOhms | - | -40°C ~ 85°C | - | - | - | User Defined | 0.648" L x 0.280" W (16.45mm x 7.10mm) | - | 0.032" (0.80mm) | - |

