MDA3KP TVS diode array family
Meets RTCA/DO-160G lightning protection requirements
MSL Level 1 acquired, operates in high-humidity environments


Aerospace systems must operate without interruption even when voltage surges or spikes caused by lightning, solar power, or static electricity occur.

Accordingly, on the 10th, Microchip announced the MDA3KP Transient Voltage Suppressor (TVS) diode array family.

The Microchip MDA3KP TVS diode array family is an integrated multi-diode solution that provides a comprehensive voltage range based on the MIL-PRF-19500 JANTX level equivalence standard and offers Avalanche Breakdown Diode (ABD) functionality to divert transient currents around sensitive components.

The MDA3KP TVS diode array family is available in shielded versions such as M, MA, MXL, and MX, and is based on the RTCA/DO-160G (Sec. 160G) avionics environment test standard of the U.S. Radio Technology Association for Aeronautics and Communications (RTCA). It met the lightning protection requirements specified in 22.0 Lightning Induced Transient Susceptibility.

Each device in the MDA3KP TVS diode array family, available in a vertical 8-diode, 16-pin surface mount package, supplies power equivalent to eight small devices on a PCB.

The new product family, available in unidirectional and bidirectional configurations at standoff voltages of 6 to 40 V, provides Electrostatic Discharge (ESD) and Electrical Fast Transients (EFT) protection in accordance with IEC standards and offers a peak pulse power rating of 3000 W at 10/1000 µs.

The operating temperature range is –55 to 150°C, it is traceable, has passed surge testing, and has obtained MSL (Moisture Sensitivity Level) 1, allowing it to operate even in harsh environments such as high humidity.

The Microchip 3kW MDA diode family provides military system circuit protection for portable radios, GPS, and communications test equipment. Additionally, it is suitable for automobiles, industrial logging equipment, power supplies, and marine systems.