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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-USML350/12-2PTC RESET FUSE 12V 3.5A 1210 |
977 | - |
|
Datasheet |
1210 (3225 Metric), Concave | Multifuse®, MF-USML/X | Tape & Reel (TR) | Active | Polymeric | 12V | 3.5 A | 7 A | 50 A | 5 s | 2 mOhms | 22 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.101" W (3.22mm x 2.58mm) | - | 0.047" (1.20mm) | - |
|
BK600-160-SYPTC RESET FUSE 500V 160MA RAD |
482 | - |
|
Datasheet |
Radial, Disc | BK600 | Bulk | Active | Polymeric | 500V | 160 mA | 320 mA | 3 A | 7.5 s | 4 Ohms | 12 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.591" L x 0.256" W (15.00mm x 6.50mm) | 0.709" (18.00mm) | - | 0.201" (5.10mm) |
|
PTR030V0300-BKPTC RESET FUSE 30V 3A RADIAL |
6,456 | - |
|
Datasheet |
Radial, Disc | PTR030V | Bulk | Active | Polymeric | 30V | 3 A | 6 A | 40 A | 10.8 s | 20 mOhms | 80 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.449" L x 0.118" W (11.40mm x 3.00mm) | 0.681" (17.30mm) | - | 0.197" (5.00mm) |
|
PFRA.600PTC RESET FUSE 30V 6A RADIAL |
856 | - |
|
Datasheet |
Radial, Disc | PFRA | Bulk | Active | Polymeric | 30V | 6 A | 12 A | 40 A | 16 s | 5 mOhms | 40 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.760" L x 0.118" W (19.30mm x 3.00mm) | 1.256" (31.90mm) | - | 0.402" (10.20mm) |
|
MF-RHS700-0FUSE PTC RESET 7.0A 16V |
450 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RHS | Bulk | Active | Polymeric | 16V | 7 A | 14 A | 100 A | 6.8 s | 0.0085 Ohms | 0.019 Ohms | - | -40°C ~ 125°C | - | - | - | Through Hole | 0.465" L x 0.118" W (11.80mm x 3.00mm) | 0.917" (23.30mm) | - | 0.201" (5.10mm) |
|
RUEF500KPTC RESET FUSE 30V 5A RADIAL |
216 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RUEF | Bag | Active | Polymeric | 30V | 5 A | 10 A | 100 A | 14.5 s | 10 mOhms | 50 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.551" L x 0.118" W (14.00mm x 3.00mm) | 1.008" (25.60mm) | - | 0.400" (10.15mm) |
|
|
PFRA.800PTC RESET FUSE 30V 8A RADIAL |
1,000 | - |
|
Datasheet |
Radial, Disc | PFRA | Bulk | Active | Polymeric | 30V | 8 A | 16 A | 40 A | 18.8 s | 5 mOhms | 30 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.953" L x 0.118" W (24.20mm x 3.00mm) | 1.295" (32.90mm) | - | 0.402" (10.20mm) |
|
0ZAF0013FF28LINE VOLTAGE RATED SURFACE MOUNT |
608 | - |
|
Datasheet |
2920 (7351 Metric), Concave | - | Tape & Reel (TR) | Active | Polymeric | 240V (250V Int) | 130 mA | 320 mA | 1.2 A | 15 s | 2 Ohms | 12 Ohms | 6 Ohms | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.102" (2.60mm) | - |
|
MF-RHS400-0FUSE PTC RESET 4.0A 16V |
480 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RHS | Bulk | Active | Polymeric | 16V | 4 A | 8 A | 100 A | 5 s | 0.016 Ohms | 0.044 Ohms | - | -40°C ~ 125°C | - | - | - | Through Hole | 0.331" L x 0.118" W (8.40mm x 3.00mm) | 0.705" (17.90mm) | - | 0.201" (5.10mm) |
|
MF-RHS450-0FUSE PTC RESET 4.50A 16V |
499 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RHS | Bulk | Active | Polymeric | 16V | 4.5 A | 9 A | 100 A | 5.5 s | 0.0145 Ohms | 0.04 Ohms | - | -40°C ~ 125°C | - | - | - | Through Hole | 0.331" L x 0.118" W (8.40mm x 3.00mm) | 0.744" (18.90mm) | - | 0.201" (5.10mm) |
|
0ZAF0016FF28LINE VOLTAGE RATED SURFACE MOUNT |
1,418 | - |
|
Datasheet |
2920 (7351 Metric), Concave | - | Tape & Reel (TR) | Active | Polymeric | 240V (250V Int) | 160 mA | 370 mA | 2 A | 15 s | 2 Ohms | 11 Ohms | 6 Ohms | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | 0.102" (2.60mm) | - |
|
|
PFRA.900PTC RESET FUSE 30V 9A RADIAL |
580 | - |
|
Datasheet |
Radial, Disc | PFRA | Bulk | Active | Polymeric | 30V | 9 A | 18 A | 40 A | 20 s | 5 mOhms | 20 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.953" L x 0.118" W (24.20mm x 3.00mm) | 1.295" (32.90mm) | - | 0.402" (10.20mm) |
|
MF-RHS550-0FUSE PTC RESET 5.5A 16V |
500 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RHS | Bulk | Active | Polymeric | 16V | 5.5 A | 11 A | 100 A | 10 s | 0.012 Ohms | 0.032 Ohms | - | -40°C ~ 125°C | - | - | - | Through Hole | 0.366" L x 0.118" W (9.30mm x 3.00mm) | 0.768" (19.50mm) | - | 0.201" (5.10mm) |
|
MF-RHS500-0FUSE PTC RESET 5.0A 16V |
495 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RHS | Bulk | Active | Polymeric | 16V | 5 A | 10 A | 100 A | 5.8 s | 0.0135 Ohms | 0.038 Ohms | - | -40°C ~ 125°C | - | - | - | Through Hole | 0.362" L x 0.118" W (9.20mm x 3.00mm) | 0.756" (19.20mm) | - | 0.201" (5.10mm) |
|
MF-RHS800-0FUSE PTC RESET 8.0A 16V |
469 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RHS | Bulk | Active | Polymeric | 16V | 8 A | 16 A | 100 A | 8 s | 0.006 Ohms | 0.0145 Ohms | - | -40°C ~ 125°C | - | - | - | Through Hole | 0.504" L x 0.142" W (12.80mm x 3.60mm) | 0.972" (24.70mm) | - | 0.142" (3.60mm) |
|
PTCCL05H150HBEPTC RESET FUSE 265V 15MA RADIAL |
959 | - |
|
Datasheet |
Radial, Disc | PTCCL - 265V | Bulk | Active | Ceramic | 265V | 15 mA | 23 mA | 110 mA | - | - | - | 1.9 kOhms | 0°C ~ 70°C | - | - | - | Through Hole | 0.197" Dia x 0.217" T (5.00mm x 5.50mm) | 0.394" (10.00mm) | - | 0.197" (5.00mm) |
|
PTCCL05H181DBEPTC RESET FUSE 30V 180MA RADIAL |
865 | - |
|
Datasheet |
Radial, Disc | PTCCL - 30V | Bulk | Active | Ceramic | 30V | 180 mA | 270 mA | 1.7 A | - | - | - | 13 Ohms | -40°C ~ 85°C | - | - | - | Through Hole | 0.197" Dia x 0.157" T (5.00mm x 4.00mm) | 0.394" (10.00mm) | - | 0.197" (5.00mm) |
|
BK600-110-SYPTC RESET FUSE 500V 110MA RAD |
490 | - |
|
Datasheet |
Radial, Disc | BK600 | Bulk | Active | Polymeric | 500V | 110 mA | 220 mA | 3 A | 5 s | 6 Ohms | 18 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.591" L x 0.256" W (15.00mm x 6.50mm) | 0.709" (18.00mm) | - | 0.201" (5.10mm) |
|
BK250-1000-DZPTC RESET FUSE 250V 1A RAD |
43 | - |
|
Datasheet |
Radial, Disc | BK250 | Bulk | Active | Polymeric | 250V | 1 A | 2 A | 10 A | 21 s | 300 mOhms | 800 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.831" Dia x 0.181" T (21.10mm x 4.60mm) | 0.929" (23.60mm) | - | 0.402" (10.20mm) |
|
PTR016V0900-BKPTC RESET FUSE 16V 9A RADIAL |
6,688 | - |
|
Datasheet |
Radial, Disc | PTR016V | Bulk | Active | Polymeric | 16V | 9 A | 15.3 A | 100 A | 5.5 s | 5 mOhms | 14 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.551" L x 0.122" W (14.00mm x 3.10mm) | 0.862" (21.90mm) | - | 0.197" (5.00mm) |

