Multi-option, surface-mount transformers for switching supplies
Different circuit configurations enable over 375 transformer configurations and around 125 choke options with WE-FLEX HV. Applications include flyback converters, forward converters, push-pull converters, step-up and step-down converters or single-ended primary-inductor converters (SEPIC). The transformers have an isolation voltage of 1.5 kVAC; their MnZn core material reduces core losses by up to 30% as compared with classical products and makes the new SMD transformer an attractive solution for all types of isolated DC-DC converters in industrial and telecommunications applications. WE-FLEX HV is available in four sizes, each with five different air gap lengths.
The working temperature is specified as -40°C to +125°C. Given suitable circuitry, the large package types of the series have a basic isolation for working voltages up to 250VRMS.
Würth Elektronik eiSos; www.we-online.com
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