Vishay Intertechnology, Inc. (NYSE: VSH), based in Malvern, Pennsylvania, USA, and Shanghai, China, announced the launch of a new series of low-profile, aerospace-grade planar transformers for power conversion – the SGTPL-2516 series. Compared to traditional planar transformers, the customizable Vishay Custom Magnetics SGTPL-2516 series transformers offer lower cost, smaller size, and higher power density, providing significant advantages and meeting MIL-STD-981 Class S requirements.

Featuring through-hole terminals and various package sizes, these transformers find wide applications in switch-mode power supplies as well as DC/DC and AC/DC converters. Designed for harsh environments, they feature robust encapsulation with molded windings, operate at temperatures up to 130°C, and are certified according to MIL-STD-981. The SGTPL-2516 series transformers operate at frequencies ranging from 80 kHz to 300 kHz, with a high dielectric withstand voltage of 1500 VAC, power rating of 150 W, and leakage inductance of 0.5 H.

With a unique winding structure and manufacturing process, these transformers achieve a higher copper fill factor than traditional planar transformers, resulting in improvements in package size, efficiency, and power density. The winding technology of the SGTPL-2516 series enables adjustment of operating voltage, inductance, power, package size, and height according to specific design requirements, without incurring upfront tooling costs. In addition to MIL-STD-981 Class S Group A and B screening, these devices also offer Class P screening for design verification testing and other customized screening options.

Samples of these new transformers are now available, and they are in full production. The lead time for Class P screening devices is 8 weeks, while for Class S screening devices, it is 21 weeks.

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