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ACTIVES, EEE Components

The struggle of finding rad-hard power MOSFET

  • Posted by José Francisco Largaespada
  • On November 14, 2019
  • 0

Power MOSFET’s are a key element of many electronic designs where high power management is needed. They are used in almost any power supply application (for example as switches). However, the fact that they are key, doesn’t mean necessarily that we have a wide number of rad-hard power MOSFET providers. Unfortunately, as it can be confirmed by searching into doeeet.com, only a bunch of manufacturers (and only two Europeans: STMicroelectronics and Infineon) are able to supply High Reliability Class 1 MOSFET to the market.

CLASS 1 N-CHANNEL MOSFET

HERE doEEEt CATALOGUED CLASS 1 N-CHANNEL MOSFET.

CLASS 1 P-CHANNEL MOSFET

HERE doEEEt CATALOGUED CLASS 1 P-CHANNEL MOSFET.

YOU CAN NARROW YOUR SEARCH BY SELECTING THE PROPER FILTER VALUE

It is therefore of extreme need to look for further sources, so that power MOSFET can be procured in case of any kind of shortage. In this sense, an option that might be useful, are the power MOSFET manufactured in accordance with JAXA standards, both N-CHANNEL and P-CHANNEL, and included in the list of JAXA QUALIFIED PARTS.

The most important thing about these JAXA MOSFETs is that some of them are listed in the European Preferred Parts List (EPPL), which would facilitate their procurement. Another key point of these components is that they are very similar to standard military MOSFET, allowing the replacement from one to another. As example, you can see below a few MOSFET from JAXA with their equivalent military part, as well as some parameters

Part Number Component details web site wdt_ID VDS (V) ID (A) Ron (Ω)
JAXAR2SK4048 JAXAR2SK4048 19 100 42 0.018
JANSR2N7471T1 JANSR2N7471T1 22 100 45 0.013
JAXAR2SK4214 JAXAR2SK4214 25 130 42 0.024
JANSR2N7475T1 JANSR2N7475T1 28 130 45 0.0145
JAXAR2SK4185 JAXAR2SK4185 31 500 23 0.18
JANSR2N7392 JANSR2N7392 34 500 18 0.32
Part Number Component details web site VDS (V) ID (A) Ron (Ω)
  • Author
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José Francisco Largaespada
José Francisco Largaespada
Procurement support at Alter Technology
Jose Largaespada has a Degree in Physics with a mention in Applied Physics

Joined Alter Technology in 2016 as EEE Parts Engineer, initially giving procurement support to different customers of the space market around the world. Then, Jose started to join the activities of technical support (PA Support) for projects such as Euclid, Proba-3 and Electra. He now continues developing these activities, as well as technical support to other departments in Alter Technology.
José Francisco Largaespada
Latest posts by José Francisco Largaespada (see all)
  • Plastic RT PWM and FET Driver from Renesas for New Space - June 5, 2022
  • Component Selection in New Space Applications - July 2, 2021
  • Product Assurance Plan for Small Sats - July 1, 2021
TAGS: Discretes EEE PARTS PROCUREMENT EPPL Infineon MOSFET Drivers N channel MOSFET P channel JFET RADIATION STMicroelectronics

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