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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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FSMD125-2920-RRESETTABLE FUSE - SMD, 2920 SIZE |
1,950 | - |
|
Datasheet |
2920 (7351 Metric), Concave | FSMD2920 | Tape & Reel (TR) | Active | - | 33V | 1.25 A | 2.5 A | 100 A | 2 s | 50 mOhms | 250 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.035" (0.90mm) | - |
|
FSMD300-2920-RRESETTABLE FUSE - SMD, 2920 SIZE |
1,850 | - |
|
Datasheet |
2920 (7351 Metric), Concave | FSMD2920 | Tape & Reel (TR) | Active | - | 6V | 3 A | 5.2 A | 100 A | 25 s | 10 mOhms | 48 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.035" (0.90mm) | - |
|
FSMD150-1206RRESETTABLE FUSE - SMD, 1206 SIZE |
1,950 | - |
|
Datasheet |
1206 (3216 Metric), Concave | FSMD1206 | Tape & Reel (TR) | Active | - | 8V | 1.5 A | 3 A | 100 A | 1 s | 40 mOhms | 120 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.128" L x 0.065" W (3.25mm x 1.65mm) | - | 0.055" (1.40mm) | - |
|
FSMD150-12RRESETTABLE FUSE - SMD, 1812 SIZE |
1,850 | - |
|
Datasheet |
1812 (4532 Metric), Concave | FSMD1812 | Tape & Reel (TR) | Active | - | 12V | 1.5 A | 3 A | 100 A | 500 ms | 40 mOhms | 110 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.179" L x 0.128" W (4.55mm x 3.24mm) | - | 0.043" (1.10mm) | - |
|
FSMD200RRESETTABLE FUSE - SMD, 1812 SIZE |
1,400 | - |
|
Datasheet |
1812 (4532 Metric), Concave | FSMD1812 | Tape & Reel (TR) | Active | - | 8V | 2 A | 3.5 A | 100 A | 2 s | 20 mOhms | 70 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.179" L x 0.128" W (4.55mm x 3.24mm) | - | 0.047" (1.20mm) | - |
|
FSMD150-24RRESETTABLE FUSE - SMD, 1812 SIZE |
1,300 | - |
|
Datasheet |
1812 (4532 Metric), Concave | FSMD1812 | Tape & Reel (TR) | Active | - | 24V | 1.5 A | 3 A | 100 A | 1.5 s | 40 mOhms | 120 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.179" L x 0.128" W (4.55mm x 3.24mm) | - | 0.061" (1.55mm) | - |
|
MPTR90V185PTC RESET FUSE 90V 1.85A RADIAL |
45,500 | - |
|
Datasheet |
Radial, Disc | MPTR | Bulk | Active | Polymeric | 90V | 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) |
|
FSMD100-0805RRESETTABLE FUSE - SMD, 0805 SIZE |
2,850 | - |
|
Datasheet |
0805 (2012 Metric), Concave | FSMD0805 | Tape & Reel (TR) | Active | - | 6V | 1 A | 1.95 A | 100 A | 300 ms | 60 mOhms | 210 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.085" L x 0.053" W (2.15mm x 1.35mm) | - | 0.071" (1.80mm) | - |
|
R0603-010-RPTC RESET FUSE 15V 100MA 0603 |
4,000 | - |
|
Datasheet |
0603 (1608 Metric), Concave | R0603 | Tape & Reel (TR) | Active | Polymeric | 15V | 100 mA | 250 mA | 40 A | 100 ms | 900 mOhms | 8 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.063" L x 0.029" W (1.60mm x 0.73mm) | - | 0.030" (0.75mm) | - |
|
R1206-005-RPTC RESET FUSE 60V 50MA 1206 |
3,000 | - |
|
Datasheet |
1206 (3216 Metric), Concave | R1206 | Tape & Reel (TR) | Active | Polymeric | 60V | 50 mA | 150 mA | 100 A | 1.5 s | 3.6 Ohms | 50 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.128" L x 0.065" W (3.25mm x 1.65mm) | - | 0.033" (0.85mm) | - |
|
FSMD075-60-2920-RRESETTABLE FUSE - SMD, 2920 SIZE |
1,800 | - |
|
Datasheet |
2920 (7351 Metric), Concave | FSMD2920 | Tape & Reel (TR) | Active | - | 60V | 750 mA | 1.5 A | 100 A | 300 ms | 180 mOhms | 1 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.045" (1.15mm) | - |
|
FSMD260-2920-RRESETTABLE FUSE - SMD, 2920 SIZE |
1,950 | - |
|
Datasheet |
2920 (7351 Metric), Concave | FSMD2920 | Tape & Reel (TR) | Active | - | 6V | 2.6 A | 5.2 A | 100 A | 20 s | 20 mOhms | 75 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.035" (0.90mm) | - |
|
|
TRF250-120USPTC RESET FUSE 60V 120MA RADIAL |
1,500 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, TRF250 | Bag | Active | Polymeric | 60V (250V Int) | 120 mA | 240 mA | 3 A | 2 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) |
|
PTR030V0090-TR1PTC RESET FUSE 30V 900MA RADIAL |
6,413 | - |
|
Datasheet |
Radial, Disc | PTR030V | Tape & Reel (TR) | Active | Polymeric | 30V | 900 mA | 1.8 A | 40 A | 5.9 s | 70 mOhms | 220 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.291" L x 0.118" W (7.40mm x 3.00mm) | 0.480" (12.20mm) | - | 0.197" (5.00mm) |
|
|
MF-RX135/72-0-14FUSE PTC RESETTABLE |
6,537 | - |
|
Datasheet |
Radial, Disc | MF-RX/72 | Bulk | Active | - | 72V | 1.35 A | 2.7 A | 40 A | 9.6 s | - | - | - | - | - | - | - | Through Hole | 0.483" L x 0.122" W (12.26mm x 3.10mm) | 0.718" (18.26mm) | - | 0.201" (5.10mm) |
|
|
TRF250-145-RA-B0.5-2PTC RESET FUSE 60V 145MA RADIAL |
2,824 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, TRF250 | Tape & Reel (TR) | Obsolete | Polymeric | 60V (250V Int) | 145 mA | 290 mA | 3 A | 2.5 s | 3 Ohms | 12 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) |
|
|
VTP175LFPTC RESET FUSE 16V 1.75A STRAP |
3,000 | - |
|
Datasheet |
Strap | PolySwitch®, VTP | Bulk | Active | Polymeric | 16V | 1.75 A | 3.6 A | 100 A | 5 s | 29 mOhms | 102 mOhms | - | -40°C ~ 85°C | - | - | - | User Defined | 1.063" L x 0.146" W (27.00mm x 3.70mm) | - | 0.032" (0.80mm) | - |
|
FSMD300-24-2920RRESETTABLE FUSE - SMD, 2920 SIZE |
3,950 | - |
|
Datasheet |
2920 (7351 Metric), Concave | FSMD2920 | Tape & Reel (TR) | Active | - | 24V | 3 A | 5.2 A | 100 A | 20 s | 10 mOhms | 48 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.045" (1.15mm) | - |
|
MF-R010-0-99PTC RESET FUSE 60V 100MA RADIAL |
3,445 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-R | Bulk | Obsolete | Polymeric | 60V | 100 mA | 200 mA | 40 A | 4 s | 2.5 Ohms | 7.5 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.291" Dia x 0.122" T (7.40mm x 3.10mm) | 0.500" (12.70mm) | - | 0.201" (5.10mm) |
|
FSMD300-15-2920RRESETTABLE FUSE - SMD, 2920 SIZE |
1,750 | - |
|
Datasheet |
2920 (7351 Metric), Concave | FSMD2920 | Tape & Reel (TR) | Active | - | 15V | 3 A | 5.2 A | 100 A | 20 s | 10 mOhms | 48 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.045" (1.15mm) | - |

