Electronics Weekly – Microchip Radiation-Hardened MCUs, TT Fiber-optic Transmitters and More
Vincent Charbonneau posted on April 12, 2019 |
New products from Digi-Key, Microchip, RS Components, ST and TT Electronics.

Digi-Key KiCad Library

Digi-Key Partner Library. (Image courtesy of Digi-Key.)
Digi-Key Partner Library. (Image courtesy of Digi-Key.)

Digi-Key has announced the release of a secondary KiCad library, known as the Digi-Key Partner Library, on GitHub. This is intended to be a supplement to the company’s existing KiCad library released last year.

Whereas the previous library was developed and curated by Digi-Key’s Applications Engineering team, the Partner Library was created to allow manufacturers to submit their own symbols and footprints to be compiled into the Digi-Key format.

For more information, visit Digi-Key’s website.

Microchip Radiation-Hardened MCUs

SAMV71Q21RT radiation-tolerant MCU. (Image courtesy of Microchip.)
SAMV71Q21RT radiation-tolerant MCU. (Image courtesy of Microchip.)

Microchip has introduced Arm-based microcontrollers (MCUs) that combine the low-cost and large ecosystem benefits of Commercial Off-the-Shelf (COTS) technology with space-qualified versions that have scalable levels of radiation performance. The SAMV71Q21RT radiation-tolerant and SAMRH71 radiation-hardened MCUs utilize the Arm Cortex-M7 System on Chip (SoC) for improved performance.

While the SAMV71Q21RT’s radiation performance is ideal for “NewSpace” applications such as Low Earth Orbit (LEO) satellite constellations and robotics, the SAMRH71 offers the radiation performance suited for more critical sub-systems like gyroscopes and star tracker equipment.

For more information, visit Microchip’s website.

RS Components Environmentally Sealed Connectors

4000 series connector. (Image courtesy of RS Components.)
4000 series connector. (Image courtesy of RS Components.)

RS Components has unveiled a programmable version of the 4000 series of environmentally sealed circular connectors from Bulgin. Rated to meet different levels of prevention against dust and water ingress, the 4000 series of miniature connectors are suited for use in a range of data monitoring applications located in harsh external environments.

The 4000 series provides compact 19.1mm-diameter circular connectors made from UL94V0-rated flame-retardant materials, together with a quick-turn bayonet coupling mechanism, which enables a secure connection without the need for specialist tools.

For more information, visit RS Components’ website.

ST IGBTs for Induction-Heating Efficiency

STPOWER IGBTs. (Image courtesy of ST.)
STPOWER IGBTs. (Image courtesy of ST.)

ST has released its STGWA40IH65DF and STGWA50IH65DF 650V STPOWER IGBTs to increase the energy efficiency of resonant converters in the 16 kHz to 60 kHz switching-frequency range.

Rated for 40A and 50A respectively, the STGWA40IH65DF and STGWA50IH65DF serve applications up to 4kW. With low saturation voltage of 1.5V (typical at nominal current) and a low-drop voltage freewheeling co-packaged diode, these IGBTs combine improved conduction performance with low turn-off losses.

For more information, visit ST’s website.

TT Electronics Fiber-Optic Transmitters

OPF350A and OPF352A transmitters. (Image courtesy of TT Electronics.)
OPF350A and OPF352A transmitters. (Image courtesy of TT Electronics.)

TT Electronics has launched its OPF350A and OPF352A fiber-optic transmitters based on 850nm LED technology. These transmitters improve performance with up to 8 percent more optical power with various fiber sizes such as 50/125μm-200/300μm.

The OPF352A in the ST-style receptacle is suitable for PCB or panel mounting. It is supplied pre-mounted, pre-tested with fiber to assure performance, and ready to use, with necessary fixings and a protective dust cap included.

For more information, visit TT’s website.

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