Surface mounted type fuse

45 Amperes SFK Series Self Control Protector(SCP)

Suitable for power systems and high power equipment.

  • Product name
    SFK-1245 / SFK-1445 / SFK-2045 / SFK-3045 / SFK-4045 / SFK-5045
  • Features
    • Achieving rated current 45 Amperes as a surface mounted fuses.
    • Applicable up to 14 cells in series.
    • Protects Li-ion batteries from overcharging (overvoltage) and overcurrent.
    • When overcharging occurs, the fuse element melts to shut off the circuit, and simultaneously the power to the heater is also cut off.
    • Placing a heater directly under the fuse element breaks the circuit quickly.

Specifications

Product name SFK-1245 SFK-1445 SFK-2045 SFK-3045 SFK-4045 SFK-5045
Applicable cells in series 3 cells 4 cells 5 cells 6 to 7 cells 9 to 10 cells 12 to 14 cells
Rated current (A) 45
Rated voltage (VDC) 80
Rated breaking capacity (A) 120
Operating voltage (V) 9.8 to 13.5 13.0 to 18.4 16.7 to 23.5 22.3 to 31.5 33.0 to 46.9 43.7 to 62.0
Heater resistance (Ω) 1.9 to 2.9 3.4 to 5.1 5.6 to 8.4 10.0 to 15.0 22.0 to 33.0 38.5 to 57.8
Fuse resistance (mΩ) 1.1
Dimension (mm) 9.5 x 5.0 x 2.0
  • ※ Maximum voltage at which cutoff of the fuse is possible. It is not the operating voltage for the heater.
    UL certification: File No. E167588
    TUV certification: Certificate No. J9650637
    RoHS directive: Conforming
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<Recommended rand size>
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These are recommended sizes and we can't guarantee the quality of product when mounted.
We recommend our customer to verify if our products could work with your design guidelines.

Suitable for Li-ion batteries of cordless power tools, storage batteries, electric power-assisted bicycles, electric motorcycles, electric cars, and other similar battery powered devices.

caution

Note on the characteristic data given - Data on the characteristics of the products described in this page based on the results of evaluations carried out by the company. This does not guarantee that the characteristics of the product conform with your usage environment. Before use, review the usage conditions based on evaluation data obtained from the equipment and substrates actually used.