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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-RHT300-2-14PTC 3.0A 16V RADIAL LEADED HI-TE |
7,657 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RHT | Tape & Reel (TR) | Active | Polymeric | 16V | 3 A | 6 A | 100 A | 5 s | 33 mOhms | 79 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.346" L x 0.118" W (8.80mm x 3.00mm) | 0.543" (13.80mm) | - | 0.201" (5.10mm) |
|
MF-RHT450-2-14PTC 4.5A 16V RADIAL LEADED HI-TE |
6,477 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RHT | Tape & Reel (TR) | Active | Polymeric | 16V | 4.5 A | 7.8 A | 100 A | 3 s | 22 mOhms | 54 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.409" L x 0.118" W (10.40mm x 3.00mm) | 0.614" (15.60mm) | - | 0.201" (5.10mm) |
|
MF-RHT550-0-14PTC 5.5A 16V RADIAL LEADED HI-TE |
7,417 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RHT | Bulk | Active | Polymeric | 16V | 5.5 A | 10 A | 100 A | 6 s | 15 mOhms | 37 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.441" L x 0.118" W (11.20mm x 3.00mm) | 0.744" (18.90mm) | - | 0.201" (5.10mm) |
|
RHEF750-1PTC RESET FUSE 16V 7.5A RADIAL |
7,652 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RHEF | Bulk | Obsolete | Polymeric | 16V | 7.5 A | 13.1 A | 100 A | 7 s | 9.4 mOhms | 22 mOhms | - | -40°C ~ 125°C | - | - | - | Through Hole | 0.551" L x 0.118" W (14.00mm x 3.00mm) | 0.925" (23.50mm) | - | 0.199" (5.05mm) |
|
SMD2920P125TFAPTC RESET FUSE 15V 1.25A 2920 |
6,009 | - |
|
- |
2920 (7351 Metric), Concave | POLY-FUSE®, SMD2920 | Tape & Reel (TR) | Obsolete | Polymeric | 15V | 1.25 A | 2.5 A | 40 A | 2 s | 70 mOhms | 250 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.031" (0.78mm) | - |
|
BK16-1200-SZPTC RESET FUSE 16V 12A RAD |
5,089 | - |
|
Datasheet |
Radial, Disc | BK16 | Bulk | Active | Polymeric | 16V | 12 A | 24 A | 100 A | 7.5 s | 3 mOhms | 9 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.886" L x 0.122" W (22.50mm x 3.10mm) | 1.122" (28.50mm) | - | 0.413" (10.50mm) |
|
PTR016V0500-TRPTC RESET FUSE 16V 5A RADIAL |
5,420 | - |
|
Datasheet |
Radial, Disc | PTR016V | Tape & Reel (TR) | Active | Polymeric | 16V | 5 A | 8.5 A | 100 A | 2 s | 10 mOhms | 34 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.409" L x 0.122" W (10.40mm x 3.10mm) | 0.563" (14.30mm) | - | 0.197" (5.00mm) |
|
SMD2920P100TFAPTC RESET FUSE 33V 1.1A 2920 |
9,832 | - |
|
- |
2920 (7351 Metric), Concave | POLY-FUSE®, SMD2920 | Tape & Reel (TR) | Obsolete | Polymeric | 33V | 1.1 A | 2.2 A | 40 A | 500 ms | 120 mOhms | 410 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.031" (0.78mm) | - |
|
MF-RG1000-APPTC RESET FUSE 16V 10A RADIAL |
6,903 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RG | Tape & Box (TB) | Active | Polymeric | 16V | 10 A | 17 A | 100 A | 6 s | 4 mOhms | 10.2 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.650" L x 0.118" W (16.50mm x 3.00mm) | 0.854" (21.70mm) | - | 0.201" (5.10mm) |
|
PTGL09BD3R3N2B51B0PTC RESET FUSE 24V 248MA RADIAL |
3,020 | - |
|
Datasheet |
Radial, Disc | POSISTOR®, PTGL | Bulk | Obsolete | Ceramic | 24V | 248 mA | 461 mA | 2 A | - | - | - | 3.3 Ohms | -10°C ~ 60°C | - | - | - | Through Hole | 0.374" Dia x 0.157" T (9.50mm x 4.00mm) | 0.610" (15.50mm) | - | 0.197" (5.00mm) |
|
MF-RX012/250-T-0PTC RESET FUSE 60V 120MA RADIAL |
8,391 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RX/250 | Bulk | Active | Polymeric | 60V (250V Int) | 120 mA | - | 3 A | - | 7 Ohms | 16 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.256" L x 0.181" W (6.50mm x 4.60mm) | 0.433" (11.00mm) | - | 0.201" (5.10mm) |
|
PTGL05AR181M9N52A0PTC RESET FUSE 265V 180OHM 120C |
6,897 | - |
|
Datasheet |
Radial, Disc | Posistor® | Tape & Box (TB) | Obsolete | Ceramic | - | - | - | - | - | - | - | 18.1 Ohms | - | - | - | - | Through Hole | - | - | - | - |
|
1210L150/12WRPTC RESET FUSE 12V 1.5A 1210 |
7,309 | - |
|
Datasheet |
1210 (3225 Metric), Concave | POLY-FUSE®, 1210L | Tape & Reel (TR) | Obsolete | Polymeric | 12V | 1.5 A | 3 A | 100 A | 300 ms | 40 mOhms | 110 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.042" (1.07mm) | - |
|
SMD0805P010TSAPTC RESET FUSE 15V 100MA 0805 |
5,857 | - |
|
- |
0805 (2012 Metric), Concave | POLY-FUSE®, SMD0805 | Tape & Reel (TR) | Obsolete | Polymeric | 15V | 100 mA | 300 mA | 40 A | 1.5 s | 1 Ohms | 6 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.083" L x 0.053" W (2.10mm x 1.35mm) | - | 0.039" (1.00mm) | - |
|
SMD0805P020TSAPTC RESET FUSE 9V 200MA 0805 |
5,357 | - |
|
- |
0805 (2012 Metric), Concave | POLY-FUSE®, SMD0805 | Tape & Reel (TR) | Obsolete | Polymeric | 9V | 200 mA | 500 mA | 40 A | 20 ms | 650 mOhms | 3.5 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.083" L x 0.053" W (2.10mm x 1.35mm) | - | 0.039" (1.00mm) | - |
|
SMD0805P035TSAPTC RESET FUSE 6V 350MA 0805 |
7,213 | - |
|
- |
0805 (2012 Metric), Concave | POLY-FUSE®, SMD0805 | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 350 mA | 750 mA | 40 A | 100 ms | 250 mOhms | 1.2 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.083" L x 0.053" W (2.10mm x 1.35mm) | - | 0.024" (0.60mm) | - |
|
LTP340PTC RESET FUSE 24V 3.4A STRAP |
9,997 | - |
|
- |
Strap | PolySwitch®, LTP | Bulk | Obsolete | Polymeric | 24V | 3.4 A | 6.8 A | 100 A | 5 s | 16 mOhms | 50 mOhms | - | -40°C ~ 85°C | - | - | - | User Defined | 0.984" L x 0.604" W (25.00mm x 15.35mm) | - | 0.039" (1.00mm) | - |
|
LTP300FPTC RESET FUSE 24V 3A STRAP |
2,346 | - |
|
- |
Strap | PolySwitch®, LTP | Bulk | Obsolete | 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) | - |
|
BBRF550SPTC RESET FUSE 99V 550MA RADIAL |
3,740 | - |
|
Datasheet |
Radial, Disc | PolySwitch® | Bulk | Obsolete | Polymeric | 99V | 550 mA | 1.1 A | 20 A | 60 s | 800 mOhms | 1.95 Ohms | - | - | - | - | - | Through Hole | 0.429" Dia x 0.142" T (10.90mm x 3.60mm) | 0.567" (14.40mm) | - | 0.200" (5.08mm) |
|
VLP270DFPTC RESET FUSE 16V 2.7A STRAP |
9,661 | - |
|
- |
Strap | PolySwitch®, VLP | Bulk | Discontinued at Digi-Key | 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) | - |

