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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-USML175-2PTC RESET FUSE 6V 1.75A 1210 |
3,614 | - |
|
Datasheet |
1210 (3225 Metric), Concave | Multifuse®, MF-USML | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 1.75 A | 3.5 A | 50 A | 2.5 s | 6 mOhms | 40 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.024" (0.60mm) | - |
|
MF-USML190-2PTC RESET FUSE 6V 1.9A 1210 |
5,738 | - |
|
Datasheet |
1210 (3225 Metric), Concave | Multifuse®, MF-USML | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 1.9 A | 4.9 A | 50 A | 3 s | 6 mOhms | 30 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.024" (0.60mm) | - |
|
MF-USML380-2PTC RESET FUSE 6V 3.8A 1210 |
7,846 | - |
|
Datasheet |
1210 (3225 Metric), Concave | Multifuse®, MF-USML | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 3.8 A | 8 A | 50 A | 2 s | 2 mOhms | 16 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.024" (0.60mm) | - |
|
MF-USML400-2PTC RESET FUSE 6V 4A 1210 |
4,017 | - |
|
Datasheet |
1210 (3225 Metric), Concave | Multifuse®, MF-USML | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 4 A | 8 A | 50 A | 2 s | 1.5 mOhms | 15.5 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.024" (0.60mm) | - |
|
FSMD185-2920-RRESETTABLE FUSE - SMD, 2920 SIZE |
2,000 | - |
|
Datasheet |
2920 (7351 Metric), Concave | FSMD2920 | Tape & Reel (TR) | Active | - | 33V | 1.85 A | 3.7 A | 100 A | 2.5 s | 40 mOhms | 150 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.035" (0.90mm) | - |
|
R1812-110-24-RPTC RESET FUSE 24V 1.1A 1812 |
1,500 | - |
|
Datasheet |
1812 (4532 Metric), Concave | R1812 | Tape & Reel (TR) | Active | Polymeric | 24V | 1.1 A | 2.2 A | 100 A | 500 ms | 60 mOhms | 200 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.179" L x 0.128" W (4.55mm x 3.24mm) | - | 0.051" (1.30mm) | - |
|
|
TS250-130F-RA-N-2PTC RESET FUSE 60V 130MA 2SMD |
2,748 | - |
|
Datasheet |
2-SMD | PolySwitch®, TS250 | Tape & Reel (TR) | Obsolete | Polymeric | 60V (600V Int) | 130 mA | 260 mA | 1 A | 2.5 s | 6.5 Ohms | 15 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.353" L x 0.290" W (8.95mm x 7.40mm) | - | 0.134" (3.40mm) | - |
|
MF-R075-2-99PTC RESET FUSE 60V 750MA RADIAL |
2,549 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-R | Tape & Reel (TR) | Obsolete | Polymeric | 60V | 750 mA | 1.5 A | 40 A | 6.3 s | 180 mOhms | 600 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.409" Dia x 0.122" T (10.40mm x 3.10mm) | 0.630" (16.00mm) | - | 0.201" (5.10mm) |
|
PTR030V0250-TR1PTC RESET FUSE 30V 2.5A RADIAL |
6,693 | - |
|
Datasheet |
Radial, Disc | PTR030V | Tape & Reel (TR) | Active | Polymeric | 30V | 2.5 A | 5 A | 40 A | 10.3 s | 20 mOhms | 70 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.449" L x 0.118" W (11.40mm x 3.00mm) | 0.807" (20.50mm) | - | 0.197" (5.00mm) |
|
PTR030V0600-TRPTC RESET FUSE 30V 6A RADIAL |
7,821 | - |
|
Datasheet |
Radial, Disc | PTR030V | Tape & Reel (TR) | Active | Polymeric | 30V | 6 A | 12 A | 100 A | 16 s | 5 mOhms | 40 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.650" L x 0.118" W (16.50mm x 3.00mm) | 1.169" (29.70mm) | - | 0.394" (10.00mm) |
|
MF-NSML350-2PTC RESET FUSE 6V 3.5A 1206 |
9,025 | - |
|
- |
1206 (3216 Metric), Concave | Multifuse®, MF-NSML | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 3.5 A | 7 A | 50 A | 5 s | 2 mOhms | 18 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.128" L x 0.063" W (3.25mm x 1.60mm) | - | 0.024" (0.60mm) | - |
|
PFUF.035.2PTC RESET FUSE 6V 350MA 1210 |
1,532 | - |
|
Datasheet |
1210 (3225 Metric), Concave | PFUF | Tape & Reel (TR) | Active | Polymeric | 6V | 350 mA | 750 mA | 40 A | 200 ms | 200 mOhms | 1.3 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.028" (0.70mm) | - |
|
LVR025SPTC Resettable Fuse, 120V, 1.3oh |
1,072 | - |
|
- |
- | * | Bulk | Active | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
PTR060V0160-TRPTC RESET FUSE 60V 1.6A RADIAL |
3,661 | - |
|
Datasheet |
Radial, Disc | PTR060V | Tape & Reel (TR) | Active | 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 0.118" T (16.30mm x 3.00mm) | 0.839" (21.30mm) | - | 0.197" (5.00mm) |
|
FSMD050-2920-RRESETTABLE FUSE - SMD, 2920 SIZE |
1,950 | - |
|
Datasheet |
2920 (7351 Metric), Concave | FSMD2920 | Tape & Reel (TR) | Active | - | 60V | 500 mA | 1 A | 100 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) | - | 0.045" (1.15mm) | - |
|
FSMD075-2920-RRESETTABLE FUSE - SMD, 2920 SIZE |
1,935 | - |
|
Datasheet |
2920 (7351 Metric), Concave | FSMD2920 | Tape & Reel (TR) | Active | - | 33V | 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) | - |
|
MF-RX300/72-0-14FUSE PTC RESETTABLE |
5,230 | - |
|
Datasheet |
Radial, Disc | MF-RX/72 | Bulk | Active | - | 72V | 3 A | 6 A | 40 A | 19.8 s | - | - | - | - | - | - | - | Through Hole | 0.980" L x 0.122" W (24.90mm x 3.10mm) | 1.181" (30.00mm) | - | 0.402" (10.20mm) |
|
MF-RX185-2-99PTC RESET FUSE 60V 1.85A RADIAL |
5,168 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RX | 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" L x 0.122" W (17.80mm x 3.10mm) | 0.902" (22.90mm) | - | 0.201" (5.10mm) |
|
PTR016V0800-TR1PTC RESET FUSE 16V 8A RADIAL |
8,149 | - |
|
Datasheet |
Radial, Disc | PTR016V | Tape & Reel (TR) | Active | Polymeric | 16V | 8 A | 13.6 A | 100 A | 5 s | 5 mOhms | 18 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.500" L x 0.122" W (12.70mm x 3.10mm) | 0.906" (23.00mm) | - | 0.197" (5.00mm) |
|
|
RXEF065-APPTC RESET FUSE 72V 650MA RADIAL |
1,948 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RXEF | Cut Tape (CT) | Active | Polymeric | 72V | 650 mA | 1.3 A | 40 A | 5.3 s | 310 mOhms | 720 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.370" Dia x 0.118" T (9.40mm x 3.00mm) | 0.571" (14.50mm) | - | 0.199" (5.05mm) |

