Vishay’s SGTPL-28 series consists of 150 W low profile, space-grade planar transformers that offer an input voltage range from 18 V to 36 V, with a dielectric withstand voltage of 1250 VDC and leakage inductance of 0.5 uH. These industry-first devices are optimized for 28 V input forward converters in avionics, military, and space (AMS) applications. The transformers are well-suited for high reliability switch mode power supplies and active clamp or dual switch forward converters. In these applications, multiple secondary windings with a center tap can power up to two 12 V channels or four 5 V channels.

With 40 % greater winding fill than traditional planar devices, Vishay’s SGTPL-28 series space-grade planar transformers allow designers to save PCB space and improve efficiency and power density in AMS applications. In addition, their unique winding technology and internal construction enable easy customization to meet design-specific requirements, while the devices’ materials and production techniques allow for lower costs. And to provide the reliability AMS applications require, the transformers combine their MIL-PRF-27 and MIL-STD-981 qualifications with a rugged package featuring over-molded windings, high temperature operation to +130 C, and the ability to withstand numerous thermal shock cycles and high levels of mechanical shock and vibration.