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Phone: (972) 542-0176 - Fax: (972) 542-2954 - 1501 S. Tennessee, McKinney, Texas 75069

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Who we are.


Satisfaction through service, quality, and reliability.

Leightner Electronics, Inc. (LEI) was founded by Paul E Leightner in 1968 in Plano, Texas, and moved to its present location in 1975.

LEI specializes in the building of transformers and power supplies.

Typical applications include ground and aireborne military hardware, space, downhole test and drilling equipment, as well as other industrial applications.

The experienced staff at LEI has met challanges with innovative designs and reliable products resulting in satisfied customers worldwide.

We at LEI operate under the guiding principles of honesty and integrity resulting in customer satisfaction through service, quality, and reliability... parts that work, and are there when needed.


What we do.


LEI design personnel have experience ranging from the most ultra reliable space requirements to economical commercial. Our engineering capabilities include many years experience in designing magnetic components from the construction of open to hermetically sealed units that require stringent vibration and shock requirements. The combination of experience in both military and commercial designs places us in a unique position to offer top quality components.


LEI is equipped for toroidal, multiple, and high-speed winding. Manufacturing facilities include a complete varnish and potting operation together with vacuum impregnation and thermal shock capabilities and a fully integrated test and measurement area. Our specialized manufacturing staff is looking forward to satisfying you, our customer.

Customer Service

Reliable and Friendly - LEI is judged by you, the customer, every time we make contact with you. We strive to provide customer service and your satisfaction is guaranteed. You can depend on LEI for the smallest complex coil design to fully integrated electronic components. We support the customer in every aspect of the design and manufacturing process. The aim and purpose of Leightner Electronics, Inc is to serve you efficiently and with 100% reliability.