Microchip Introduces 3kW TVS Diode Array Products for Superior Circuit Protection in Harsh Environments

Aerospace systems rely on digital and logic functions and circuits in engine control units, environmental controls, instruments and actuators to do critical work. Data centers, 5G infrastructure and communication systems also rely on complex circuits that need to be properly protected. Even with voltage surges and spikes caused by lightning, solar activity and electromagnetic accidents, the system must remain in continuous operation. Microchip Technology Inc. today announced the launch of its newest vertical array portfolio of transient voltage suppressors (TVS), the MDA3KP transient voltage suppressor (TVS). This 3kW diode series features more than 25 products with different screening levels, polarities and certification standards.

Microchip’s MDA3KP TVSdiode arrayThe series offers an integrated multi-diode solution, is the only technology that offers a wide voltage range, and has been tested to high reliability standards to MIL-PRF-19500 JANTX level equivalents. These voltage clamp devices feature fast-acting avalanche breakdown diodes (ABD) that divert excess current around sensitive components to protect them from electrical overload.

“Digital control, logic and diagnostic system circuit modules require highly reliable, safe current and power protection to ensure operation in extreme environments,” said Leon Gross, vice president of Microchip’s Discrete Division. “This diode family addresses the challenges system designers face. challenges, it has a more efficient vertical structure and smaller board space requirements than other devices.”

Currently available MDA3KP TVS diode arrays meet industry standards for the following screening types: M, MA, MXL and MX. These devices have undergone various levels of testing to ensure that they meet the aircraft lightning protection requirements specified in RTCA DO-160E (Lightning Induced Transient Susceptibility), an environmental test standard for avionics. RTCA (Radio Technical Committee for Aeronautics) is an industry alliance dedicated to building consensus on key issues of aviation modernization.

The MDA3KP TVS diode array uses a structure with 8 diodes placed vertically and is packaged in a 16-pin surface mount package. This product enables efficient layout and simplified design due to less printed circuit board space required and higher power density. All devices in the MDA3KP TVS Diode Array Family are vertically structured and can power up to 8 smaller devices on a single printed circuit board, thus enabling higher power without multiple devices.

The device features both unidirectional and bidirectional constructions, isolation voltages from 6V to 40V, Electrostatic Discharge (ESD) and Electrical Fast Transient (EFT) protection according to IEC standards, and a peak pulse power rating of 3000 watts (10/1000 µs) . Over the extended temperature range of -55°C to +150°C, the devices feature batch traceability, surge testing, and Moisture Sensitivity Level (MSL) Level 1 – indicating that these devices can be used in harsh environments. MSL states that no dry packaging or drying is required before use. The power rating of the MDA3KP TVS diode array family is the only technology available in the industry with this screening level in this package.

Microchip’s 3kW MDA Diode Family Provides Military Systems for Rugged Handheld Radio, Global Positioning System (GPS), Communications Test Equipmentcircuit protectionand can also be used in automotive, industrial logging equipment, energy supply and marine systems.


To purchase the above products, please contact a Microchip sales representative.

About Microchip Technology Inc.

Microchip Technology Inc. is a leading provider of smart, connected and secure embedded control solutions. Its easy-to-use development tools and broad product portfolio enable customers to create optimal designs that reduce risk while reducing total system cost and time to market. Microchip’s solutions serve more than 120,000 customers in the industrial, automotive, consumer, aerospace and defense, communications and computing markets. Headquartered in Chandler, Arizona, Microchip provides outstanding technical support, reliable product delivery and exceptional quality.

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