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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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PTGL09AR1R8H2B51A0PTC RESET FUSE 30V 510MA RADIAL |
3,951 | - |
|
Datasheet |
Radial, Disc | POSISTOR®, PTGL | Bulk | Obsolete | Ceramic | 30V | 510 mA | 970 mA | 3 A | - | - | - | 1.8 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) |
|
AGRF800SPTC RESET FUSE 16V 8A RADIAL |
9,878 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, AGRF | Bulk | Obsolete | Polymeric | 16V | 8 A | 15 A | 100 A | 5.5 s | 4.9 mOhms | 17.5 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.500" L x 0.118" W (12.70mm x 3.00mm) | 0.823" (20.90mm) | - | 0.200" (5.08mm) |
|
PTR016V0300-TR1PTC RESET FUSE 16V 3A RADIAL |
3,534 | - |
|
Datasheet |
Radial, Disc | PTR016V | Tape & Reel (TR) | Active | Polymeric | 16V | 3 A | 5.1 A | 100 A | 1 s | 38 mOhms | 98 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.280" L x 0.122" W (7.10mm x 3.10mm) | 0.551" (14.00mm) | - | 0.197" (5.00mm) |
|
PTGL07AS5R6K4N51A0PTC RESET FUSE 60V 236MA RADIAL |
2,039 | - |
|
Datasheet |
Radial, Disc | POSISTOR®, PTGL | Bulk | Obsolete | Ceramic | 60V | 236 mA | 314 mA | 2.2 A | - | - | - | 5.6 Ohms | -30°C ~ 85°C | - | - | - | Through Hole | 0.287" Dia x 0.138" T (7.30mm x 3.50mm) | 0.484" (12.30mm) | - | 0.197" (5.00mm) |
|
PTR030V0300-TRPTC RESET FUSE 30V 3A RADIAL |
5,591 | - |
|
Datasheet |
Radial, Disc | PTR030V | Tape & Reel (TR) | 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) |
|
PTGL05AR121M9N51A0PTC RESET FUSE 265V 47MA RADIAL |
3,840 | - |
|
Datasheet |
Radial, Disc | Posistor® | Tape & Box (TB) | Obsolete | Ceramic | 265V | 47 mA | 75 mA | 300 mA | - | - | - | 120 Ohms | -20°C ~ 60°C | - | - | - | Through Hole | 0.256" Dia x 0.256" W (6.50mm x 6.50mm) | 0.551" (14.00mm) | - | 0.197" (5.00mm) |
|
PTGL05AR151H8P52A0PTC RESET FUSE 265V 35MA RADIAL |
8,428 | - |
|
Datasheet |
Radial, Disc | POSISTOR®, PTGL | Tape & Box (TB) | Obsolete | Ceramic | 265V | 35 mA | 65 mA | 200 mA | - | - | - | 150 Ohms | -10°C ~ 60°C | - | - | - | Through Hole | 0.236" Dia x 0.236" T (6.00mm x 6.00mm) | 0.472" (12.00mm) | - | 0.197" (5.00mm) |
|
|
AHRF650SPTC RESET FUSE 16V 6.5A RADIAL |
4,621 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, AHRF | Bulk | Obsolete | Polymeric | 16V | 6.5 A | 13.7 A | 100 A | 7 s | 9 mOhms | 26 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.500" L x 0.118" W (12.70mm x 3.00mm) | 0.874" (22.20mm) | - | 0.200" (5.08mm) |
|
PTGL07BD150N3B51A0PTC RESET FUSE 32V 100MA RADIAL |
3,820 | - |
|
Datasheet |
Radial, Disc | POSISTOR®, PTGL | Bulk | Obsolete | Ceramic | 32V | 100 mA | 195 mA | 1.5 A | - | - | - | 15 Ohms | -10°C ~ 60°C | - | - | - | Through Hole | 0.291" Dia x 0.157" T (7.40mm x 4.00mm) | 0.528" (13.40mm) | - | 0.197" (5.00mm) |
|
NANOSMDC020FPTC RESET FUSE 24V 200MA 1206 |
3,237 | - |
|
Datasheet |
1206 (3216 Metric), Concave | PolySwitch® | Tape & Reel (TR) | Obsolete | Polymeric | 24V | 200 mA | 420 mA | 100 A | 100 ms | 650 mOhms | - | - | - | - | - | - | Surface Mount | 0.126" L x 0.063" W (3.20mm x 1.60mm) | - | 0.032" (0.82mm) | - |
|
LVRL125SPTC RESET FUSE 120V 1.25A RADIAL |
2,726 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, LVRL | Bulk | Obsolete | Polymeric | 120V (135V Int) | 1.25 A | 2.5 A | 12.5 A | 20 s | 110 mOhms | 330 mOhms | - | -20°C ~ 85°C | - | - | - | Through Hole | 0.551" L x 0.161" W (14.00mm x 4.10mm) | 0.854" (21.70mm) | - | 0.200" (5.08mm) |
|
MF-R500-APPTC RESET FUSE 30V 5A RADIAL |
9,920 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-R | Tape & Box (TB) | Active | Polymeric | 30V | 5 A | 10 A | 40 A | 14.5 s | 10 mOhms | 50 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.685" L x 0.118" W (17.40mm x 3.00mm) | 0.980" (24.90mm) | - | 0.402" (10.20mm) |
|
MF-RHT500-APPTC RESET FUSE 16V 5A RADIAL |
7,422 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RHT | Bulk | Active | Polymeric | 16V | 5 A | 9 A | 100 A | 9 s | 17.5 mOhms | 45 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) |
|
MF-RHT550-APPTC RESET FUSE 16V 5.5A RADIAL |
5,352 | - |
|
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) |
|
MF-RX300/72-2-14PTC RESET FUSE 72V 3A RADIAL |
2,494 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RX/72 | Tape & Box (TB) | Active | Polymeric | 72V | 3 A | 6 A | 40 A | 19.8 s | 40 mOhms | 100 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.814" L x 0.122" W (20.67mm x 3.10mm) | 0.839" (21.30mm) | - | 0.201" (5.10mm) |
|
MF-RX300/72-AP-14PTC RESET FUSE 72V 3A RADIAL |
2,416 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RX/72 | Tape & Box (TB) | Active | Polymeric | 72V | 3 A | 6 A | 40 A | 19.8 s | 40 mOhms | 100 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.814" L x 0.122" W (20.67mm x 3.10mm) | 0.834" (21.18mm) | - | 0.201" (5.10mm) |
|
MF-RHT450-AP-14PTC 4.5A 16V RADIAL LEADED HI-TE |
2,597 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RHT | Tape & Box (TB) | 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-RHT400-AP-14PTC 4.0A 16V RADIAL LEADED HI-TE |
3,737 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RHT | Tape & Box (TB) | Active | Polymeric | 16V | 4 A | 7.5 A | 100 A | 5 s | 24 mOhms | 60 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.394" L x 0.118" W (10.00mm x 3.00mm) | 0.591" (15.00mm) | - | 0.201" (5.10mm) |
|
MF-RHT300-AP-14PTC 3.0A 16V RADIAL LEADED HI-TE |
8,896 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RHT | Tape & Box (TB) | 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-RHT400-2-14PTC 4.0A 16V RADIAL LEADED HI-TE |
7,269 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RHT | Tape & Reel (TR) | Active | Polymeric | 16V | 4 A | 7.5 A | 100 A | 5 s | 24 mOhms | 60 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Through Hole | 0.394" L x 0.118" W (10.00mm x 3.00mm) | 0.591" (15.00mm) | - | 0.201" (5.10mm) |

