Three-phase power line chokes suit high-voltage applications

Current-compensated, three-phase, power line chokes for high-voltage applications make up the WE-TPB HV series from Würth Elektronik eiSos.

The series guarantees a rated voltage up to 760V AC, which is 70 per cent more than that offered by comparable products available, says the company. The patented design has a plastic casing, separating strip, and grid plate.

The toroids used can be made both of MnZn ferrite material as well as of nanocrystalline material. This makes it possible to achieve very high insertion losses even in broadband applications, says the company. All insulation materials used are UL94-V0 listed. To enhance stability on the PCB, the chokes can also be fixed in place with a tapping screw.

Typical applications include frequency inverters and high-performance charging stations.

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