Circuit & System Protection


3 kW TVS diode arrays

30 June 2020 Circuit & System Protection

To ensure critical operations, aviation and space systems rely on digital and logic functionality and circuitry in engine control units, environmental controls, instruments and actuators. Data centres, the 5G infrastructure and communication systems also rely on complex circuitry requiring protection.

Each system must operate continuously despite voltage surges and spikes from lightning, solar events and electromagnetic incidents. Microchip Technology announced its newly expanded portfolio of transient voltage suppressor (TVS) vertical arrays – the MDA3KP, a 3 kW diode family of more than 25 products with different screening levels, polarities and qualification standards.

Microchip’s MDA3KP TVS diode array family – the only available technology offering a comprehensive voltage range tested to a high reliability standard and qualified based on the MIL-PRF-19500 JANTX level equivalence standard – provides an integrated multi-diode solution. These voltage-clamping devices provide fast-reacting avalanche breakdown diode (ABD) features that divert excess current around sensitive components to protect them from electrical overstress.

“Digital controls, logic and diagnostic system circuit blocks require highly reliable, secure current and power protection to ensure operations in extreme environments,” said Leon Gross, vice president of Microchip’s Discrete Product Group business unit. “This diode family also addresses the challenges system designers face with a more efficient vertical construction and requirement for less board space than other devices.”

MDA3KP TVS diode arrays are available in the following screened version industry standards: M, MA, MXL and MX. The devices have been exposed to various levels of testing to ensure they meet the aircraft lightning protection requirements set forth in the standard for environmental testing of avionics, RTCA DO-160E (Lightning Induced Transient Susceptibility). RTCA (the American Radio Technical Commission for Aeronautics) is the industry consortium that develops consensus on critical aviation modernisation issues.

The MDA3KP TVS diode array, a vertically constructed 8-diode, 16-pin surface mount package, allows for efficient layout and ease of design, as less printed circuit board space is required while enabling higher power densities. In the MDA3KP TVS diode array family, each device’s vertical construction provides the power of eight smaller devices on a printed circuit board, eliminating the need for the multiple devices even as it provides higher power.

Available in unidirectional and bidirectional construction in standoff voltages of 6 V to 40 V, the components provide electrostatic discharge (ESD) and electrical fast transients (EFT) protection according to IEC standards and a peak pulse power rating of 3000 W at 10/1000 µs.

With an extended temperature range from -55°C to +150°C, the devices are lot-traceable, surge tested and moisture sensitivity level (MSL) Level 1 – demonstrating that these devices are ready for use in harsh environments. MSL indicates that no dry pack or bake is required prior to use. The MDA3KP TVS diode array family’s power rating is the industry’s only available technology with this level of screening in this package.

Microchip’s 3 kW MDA diode family provides military system circuit protection for ruggedised handheld radios, global positioning system (GPS) and communication test equipment. Other device applications include automotive, industrial logging equipment, power supplies and marine systems.

For more information contact Shane Padayachee, Avnet South Africa, +27 11 319 8600, shane.padayachee@avnet.eu, www.avnet.co.za


Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Smallest automotive maXTouch controllers
29 July 2020, Altron Arrow, Avnet South Africa , DSP, Micros & Memory
To help enhance and ease today’s driving experience, automotive manufacturers are implementing additional touch displays beyond the centre infotainment display (CID). Supporting the application of these ...

Read more...
PCIe Gen 4 switches
30 June 2020, Avnet South Africa , Computer/Embedded Technology
To support cloud, data centre and hyperscale computing that facilitates advancements in artificial intelligence (AI) and machine learning (ML), Microchip Technology released to production its Switchtec ...

Read more...
DIN-rail mounting DC-DC converters
30 June 2020, Avnet South Africa , Power Electronics / Power Management
Shortly after unveiling the brand-new DIN-rail mounting DC-DC converter family, the DDR-15/30/60/120/240 series, Mean Well has announced the DDR-480 series (480 W) to enable integration into higher-power ...

Read more...
Integrated EMC line filters and design kit
29 May 2020 , Circuit & System Protection
Würth Elektronik provides solutions to help prevent EMI problems with non-compliant equipment. It offers complete WE-CLFS EMC line filters that have most components one needs for an EMC filter inside ...

Read more...
Advanced EMI shielding solutions
29 May 2020, Actum Group , Circuit & System Protection
All electronic devices generate electromagnetic radiation that can be transmitted through the air from one electronic device to another. This is known as electromagnetic interference (EMI). In certain ...

Read more...
Wi-Fi and BLE combo module
29 May 2020, Avnet South Africa , Telecoms, Datacoms, Wireless, IoT
Dialog Semiconductor announced the DA16600, a module that combines its advanced Wi-Fi and BLE (Bluetooth Low Energy) capabilities into a single solution. This two-in-one module is comprised of two ...

Read more...
HV MOSFET for ruggedness, smart PWM controller for flexibility
30 June 2020, Avnet South Africa , Power Electronics / Power Management
As the world recently celebrated Earth Day, STMicroelectronics’ blog recently featured one of its many components that help better manage the electricity people consume every day and therefore, decided ...

Read more...
Why ‘new space’ satellites demand a new approach to components
29 May 2020, Avnet South Africa , News
New space is opening up exciting opportunities for businesses, which can create completely new products, services and capabilities that were, until recently, impossible or impractical.

Read more...
The top benefits of MEMS timing
29 May 2020, Avnet South Africa , Analogue, Mixed Signal, LSI
MEMS (micro electromechanical systems), designed to resonate and generate clocks signals, may not dominate the world of timing applications right now, but the technology’s popularity is growing. Competing ...

Read more...
Microcontrollers for functional safety
29 May 2020, Avnet South Africa , DSP, Micros & Memory
As the Internet of Things (IoT) delivers greater connectivity for industrial and home applications and as connected vehicles enhance cabin and operational features, higher-performance microcontrollers ...

Read more...