Motorola Rectifiers

  -/1
by WA3QVU
Published: January 30, 2021 (6 months ago)
$1.00

Motorola bridge rectifier model MDA 972-4.  These are rated at 300 volt and 16 amp.  Peak forward recurrent is 60 amps with a single cycle rated at 250 amps.  (built for surge protection – starting a DC motor?)  Probably need to bolt to a steel or aluminum plate with silicone grease – each unit is 7 inches long.  Outer two posts are marked Yellow — inner two marked black and red

https://datasheet.datasheetarchive.com/originals/distributors/Datasheets-X1/DSAA858000-276.pdf

New – 5 available $1.00 each.

W3AEH Estate

Note Surplus Sales has these on their website at $25 each.

https://www.surplussales.com/Semiconductors/Diodes-Rectifiers-5.html

Author: WA3QVU

PWA member since 2006. Field Day chairman 2014, 15, 16 and co-chair with Rich Finger (KB3TXF) in 2013. Holiday luncheon chairman 2016.