Rugged voltage suppressor to protect sensitive electronics from power overstress introduced by Microchip

July 15, 2020
Power devices are for ruggedized handheld radios, Global Positioning Systems (GPS), communication test equipment, avionics, and engine control.

CHANDLER, Ariz. – Microchip Technology Inc. in Chandler, Ariz., is introducing the MDA3KP transient voltage suppressor TVS diode array family for aerospace and defense applications that must operate in harsh environments.

These devices are for engine-control units, environmental controls, instruments, actuators, data centers, 5G infrastructure, and communications systems.

These devices also have military system circuit protection for ruggedized handheld radios, Global Positioning Systems (GPS), communication test equipment, automotive, industrial logging equipment, power supplies, and marine systems.

Related: TVS power diodes to protect aircraft systems from lightning strikes introduced by Microsemi

The TVS diode arrays meet aircraft lightning protection requirements set forth in RTCA DO-160E, the standard for environmental testing of avionics for lightening-induced transient susceptibility. The 3-kilowatt diode family has more than 25 products with different screening levels, polarities, and qualification standards.

Microchip's MDA3KP TVS diode array family offers a voltage range tested and qualified to the MIL-PRF-19500 JANTX level equivalence standard.

The integrated multi-diode solution is a voltage-clamping device that provides fast-reacting avalanche breakdown diode (ABD) features that divert excess current around sensitive components to provide protection from electrical overstress.

Related: Basics of Surge Protectors and Lightning Arrestors for Telecommunications and RF Applications

MDA3KP TVS diode arrays are available screened to M, MA, MXL, and MX. Available in unidirectional and bidirectional construction in standoff voltages of 6 to 40 volts, the components provide electrostatic discharge and electrical fast transients protection according IEC standards and a peak pulse power rating of 3000 Watts at 10/1000 microseconds.

With an extended temperature range from -55 to 150 degrees Celsius, the devices are lot traceable, surge tested, and moisture sensitivity level (MSL) 1 for use in harsh environments. MSL indicates that no dry pack or bake is required prior to use.

For more information contact Microchip Technology online at

Voice your opinion!

To join the conversation, and become an exclusive member of Military Aerospace, create an account today!