Vishay Intertechnology Hybrid Planar Transformers Offer Lower Cost, Smaller Packages Than Traditional Planar Devices

By Virtium Technology Inc.

MALVERN, Pa. — Dec. 9, 2016 — Vishay Intertechnology, Inc. (NYSE: VSH) today introduced a new series of 250 W full-bridge hybrid planar transformers for avionics, industrial control, and alternative energy control applications. Featuring a unique winding structure, TPL-2516 series devices provide a cost-effective solution compared to traditional planar transformers, while featuring smaller packages, improved performance, and easy customization.

The winding structure of the devices released today allows for a greater copper fill factor than traditional planar transformers, resulting in smaller overall package sizes, a low 16.51 mm maximum profile, and higher power density levels. The unique winding technology also allows the parts to be easily and quickly modified for custom voltage / power applications with no up-front tooling charges to the customer.

Featuring a split primary design for efficient 120 V or 380 V operation, TPL-2516series transformers are optimized for offline and PFC-derived switchmode power supplies and full-bridge / half-bridge converters. Designed to meet MIL-PRF-27 requirements, the devices feature overmolded windings for rugged applications and are environmentally sealed for operation in harsh environments.

The TPL-2516 series features operating frequencies from 100 kHz to 500 kHz, power dissipation of 3 W, rated current to 22.0 A, leakage inductance down to 1.30 µH, and minimal parasitic variation. The devices offer a temperature range of -55 °C to +130 °C, with power derating above +105 °C.

Samples and production quantities of the TPL-2516 series are available now, with lead times of eight to 10 weeks.


Vishay Intertechnology, Inc., a Fortune 1000 Company listed on the NYSE (VSH), is one of the world's largest manufacturers of discrete semiconductors (diodes, MOSFETs, and infrared optoelectronics) and passive electronic components (resistors, inductors, and capacitors). These components are used in virtually all types of electronic devices and equipment, in the industrial, computing, automotive, consumer, telecommunications, military, aerospace, power supplies, and medical markets. Vishay’s product innovations, successful acquisition strategy, and "one-stop shop" service have made it a global industry leader. Vishay can be found on the Internet at Intertechnology.html