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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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BK30-160-SIPTC RESET FUSE 30V 1.6A RAD |
1,000 | - |
|
Datasheet |
Radial, Disc | BK30 | Bulk | Active | Polymeric | 30V | 1.6 A | 3.2 A | 40 A | 8 s | 45 mOhms | 140 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.374" L x 0.122" W (9.50mm x 3.10mm) | 0.650" (16.50mm) | - | 0.201" (5.10mm) |
|
BK30-110-SZPTC RESET FUSE 30V 1.1A RAD |
467 | - |
|
Datasheet |
Radial, Disc | BK30 | Bulk | Active | Polymeric | 30V | 1.1 A | 2.2 A | 40 A | 6.6 s | 70 mOhms | 200 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.291" L x 0.122" W (7.40mm x 3.10mm) | 0.559" (14.20mm) | - | 0.201" (5.10mm) |
|
BK60-040-DIPTC RESET FUSE 60V 400MA RAD |
995 | - |
|
Datasheet |
Radial, Disc | BK60 | Bulk | Active | Polymeric | 60V | 400 mA | 800 mA | 40 A | 3.8 s | 500 mOhms | 1.1 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.291" Dia x 0.122" T (7.40mm x 3.10mm) | 0.559" (14.20mm) | - | 0.201" (5.10mm) |
|
BK60-090-DIPTC RESET FUSE 60V 900MA RAD |
500 | - |
|
Datasheet |
Radial, Disc | BK60 | Bulk | Active | Polymeric | 60V | 900 mA | 1.8 A | 40 A | 7.2 s | 200 mOhms | 450 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.441" Dia x 0.122" T (11.20mm x 3.10mm) | 0.709" (18.00mm) | - | 0.201" (5.10mm) |
|
BK30-250-SIPTC RESET FUSE 30V 2.5A RAD |
500 | - |
|
Datasheet |
Radial, Disc | BK30 | Bulk | Active | Polymeric | 30V | 2.5 A | 5 A | 40 A | 10.3 s | 27 mOhms | 80 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.520" L x 0.122" W (13.20mm x 3.10mm) | 0.807" (20.50mm) | - | 0.201" (5.10mm) |
|
BK16-600-SZPTC RESET FUSE 16V 6A RAD |
497 | - |
|
Datasheet |
Radial, Disc | BK16 | Bulk | Active | Polymeric | 16V | 6 A | 12 A | 100 A | 3.3 s | 9 mOhms | 25 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.531" L x 0.122" W (13.50mm x 3.10mm) | 0.772" (19.60mm) | - | 0.201" (5.10mm) |
|
BK250-145-SZPTC RESET FUSE 250V 145MA RAD |
930 | - |
|
Datasheet |
Radial, Disc | BK250 | Bulk | Active | Polymeric | 250V | 145 mA | 290 mA | 3 A | 15 s | 3.5 Ohms | 6.5 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.295" L x 0.181" W (7.50mm x 4.60mm) | 0.591" (15.00mm) | - | 0.201" (5.10mm) |
|
BK16-300-SZPTC RESET FUSE 16V 3A RAD |
969 | - |
|
Datasheet |
Radial, Disc | BK16 | Bulk | Active | Polymeric | 16V | 3 A | 6 A | 100 A | 1 s | 20 mOhms | 72 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.354" L x 0.122" W (9.00mm x 3.10mm) | 0.661" (16.80mm) | - | 0.201" (5.10mm) |
|
BK60-075-DIPTC RESET FUSE 60V 750MA RAD |
500 | - |
|
Datasheet |
Radial, Disc | BK60 | Bulk | Active | Polymeric | 60V | 750 mA | 1.5 A | 40 A | 6.3 s | 250 mOhms | 550 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.402" Dia x 0.122" T (10.20mm x 3.10mm) | 0.661" (16.80mm) | - | 0.201" (5.10mm) |
|
PTR016V0600-BK1PTC RESET FUSE 16V 6A RADIAL |
1,000 | - |
|
Datasheet |
Radial, Disc | PTR016V | Bulk | Active | Polymeric | 16V | 6 A | 10.2 A | 100 A | 3.3 s | 6 mOhms | 28 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.421" L x 0.122" W (10.70mm x 3.10mm) | 0.748" (19.00mm) | - | 0.197" (5.00mm) |
|
PTR060V0010-BKPTC RESET FUSE 60V 100MA RADIAL |
946 | - |
|
Datasheet |
Radial, Disc | PTR060V | Bulk | Active | 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 0.118" T (7.40mm x 3.00mm) | 0.500" (12.70mm) | - | 0.197" (5.00mm) |
|
|
BK60-110-DZPTC RESET FUSE 60V 1.1A RAD |
495 | - |
|
Datasheet |
Radial, Disc | BK60 | Bulk | Active | Polymeric | 60V | 1.1 A | 2.2 A | 40 A | 8.2 s | 150 mOhms | 330 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.472" Dia x 0.122" T (12.00mm x 3.10mm) | 0.709" (18.00mm) | - | 0.201" (5.10mm) |
|
BK16-500-SZPTC RESET FUSE 16V 5A RAD |
449 | - |
|
Datasheet |
Radial, Disc | BK16 | Bulk | Active | Polymeric | 16V | 5 A | 10 A | 100 A | 2 s | 14 mOhms | 30 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.421" L x 0.122" W (10.70mm x 3.10mm) | 0.772" (19.60mm) | - | 0.201" (5.10mm) |
|
BK60-135-DZPTC RESET FUSE 60V 1.35A RAD |
451 | - |
|
Datasheet |
Radial, Disc | BK60 | Bulk | Active | Polymeric | 60V | 1.35 A | 2.7 A | 40 A | 9.6 s | 120 mOhms | 270 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.571" Dia x 0.177" T (14.50mm x 4.50mm) | 0.772" (19.60mm) | - | 0.201" (5.10mm) |
|
BK30-400-SZPTC RESET FUSE 30V 4A RAD |
440 | - |
|
Datasheet |
Radial, Disc | BK30 | Bulk | Active | Polymeric | 30V | 4 A | 8 A | 40 A | 12.7 s | 10 mOhms | 60 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.551" L x 0.122" W (14.00mm x 3.10mm) | 0.929" (23.60mm) | - | 0.201" (5.10mm) |
|
BK30-200-SIPTC RESET FUSE 30V 2A RAD |
654 | - |
|
Datasheet |
Radial, Disc | BK30 | Bulk | Active | Polymeric | 30V | 2 A | 4 A | 40 A | 9.8 s | 40 mOhms | 100 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.433" L x 0.122" W (11.00mm x 3.10mm) | 0.732" (18.60mm) | - | 0.201" (5.10mm) |
|
PTR060V0020-BKPTC RESET FUSE 60V 200MA RADIAL |
6,748 | - |
|
Datasheet |
Radial, Disc | PTR060V | Bulk | Active | Polymeric | 60V | 200 mA | 400 mA | 40 A | 2.2 s | 1.83 Ohms | 4.4 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.291" Dia x 0.118" T (7.40mm x 3.00mm) | 0.480" (12.20mm) | - | 0.197" (5.00mm) |
|
|
PFRA.010PTC RESET FUSE 60V 100MA RADIAL |
1,000 | - |
|
Datasheet |
Radial, Disc | PFRA | Bulk | Active | 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) |
|
|
PFRA.020PTC RESET FUSE 60V 200MA RADIAL |
661 | - |
|
Datasheet |
Radial, Disc | PFRA | Bulk | Active | Polymeric | 60V | 200 mA | 400 mA | 40 A | 2.2 s | 1.5 Ohms | 4.4 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) |
|
PTR060V0135-BKPTC RESET FUSE 60V 1.35A RADIAL |
495 | - |
|
Datasheet |
Radial, Disc | PTR060V | Bulk | Active | Polymeric | 60V | 1.35 A | 2.7 A | 40 A | 9.6 s | 120 mOhms | 300 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.571" Dia x 0.118" T (14.50mm x 3.00mm) | 0.772" (19.60mm) | - | 0.197" (5.00mm) |

