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Leach Relays

LEACH military-qualified miniature, subminiature and half-crystal can relays for dry-circuit switching range from low level to 75 amps and come in DC and AC versions. Subminiature relays are hermetically sealed against contaminants, pollutants, extreme temperatures and harsh environments. Many Leach relays can withstand vibration and shock of up to 200G. The information provided below is for research and reference purposes. Please review your project or applications needs and contact your Avia-Dynamics Sales and Product Support Specialist for assistance.


Today’s broad range of products can trace its heritage back to 1919 with the development of a single product in a small laboratory in San Francisco. As a radio operator in the U.S. Navy during World War I, Val Leach conceived the idea for a break-in relay to eliminate many of the frustrations he experienced with the erratic nature of early two-way radio communications. His automatic antenna switch and power relay became the company’s first product. Operations were moved to Los Angeles, CA in 1929, and, during the next ten years, the product family was broadened to include other types of relays including time delay relays, aircraft switches, power monitor, power distribution, and aircraft relays for the communications and electrical industries. It was not long before Leach relays became known to aircraft manufacturers and products were developed specifically for aircraft power switching as well as for aircraft communications.


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