Need an opinion on circuit surge protection

Discussion in 'The Projects Forum' started by CRAIG VANDEKAMP, May 18, 2015.

  1. CRAIG VANDEKAMP

    Thread Starter New Member

    May 14, 2015
    20
    0
    I have a AC 24V 3A 100VA (not 75VA as you would expect) It's a Japanese circuit so maybe why it is rated at 100VA anyway it is :) and I was wondering if anyone could give me help in selecting a varistor to replace/substitute the old one as it blew (did its job but burn't out);?

    The old one is a 1980's vintage matsushita 470K 411 MOV or maybe a zener diode as motherboard indicates as ZDn - which usually denotes Zener Diode but Varistor could be [looks like] what they used.
    (see picture - note this is another of same make on same PCB - blown one is unreadable)

    [​IMG]

    Would this one (link below) suit it or can you suggest specs (component number) for one that would.

    http://uk.farnell.com/bourns/mov-14d470k/varistor-470v-30vac-38vdc-14mm/dp/2078750

    Thanks

    Craig
     
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