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PHIHONG PSM 2512-2 REV A2 Capacitor replacement help

Posted: 03 Aug 2020 18:42
by peterhurn
Hi,

I have a PHIHONG PSM 2512-2 REV A2 in my Atari STE, I would like to recap this, I have looked at the options given the current caps regarding capacitancy, voltage, height, diameter and tried to consider the ripple amount.

I have come up with the following suggested replacements from RS Components, I would have like to have gone for Panasonic but couldn't seem to find the right combination.

What are people thoughts on the followng:

Original - C5 - 1 x 400v 47uF 85c (TEAPO) 22D X 25H mm

Replacement:
https://uk.rs-online.com/web/p/aluminiu ... s/7063272/
RS PRO 47μF Electrolytic Capacitor 400V dc, Through Hole

or

https://uk.rs-online.com/web/p/aluminiu ... s/7441316/
Cornell-Dubilier 47μF Electrolytic Capacitor 400V dc, Through Hole - SLP470M400A1P3

Original C11 - 1 x 50v 1uF 85c (Rubycon) 5D x 10H mm

Replacement:
https://uk.rs-online.com/web/p/aluminiu ... s/7111407/
RS PRO 1μF Electrolytic Capacitor 50V dc, Through Hole

Original - C12 & C13 - 2 x 10v 2200uF 85c (Rubycon) 12D x 20H mm

Replacement:
https://uk.rs-online.com/web/p/aluminiu ... s/7110864/
RS PRO 2200μF Electrolytic Capacitor 10V dc, Through Hole

Original - C14 - 1 x 25v 1000uF 85c (Rubycon) 12D x 20H mm

Replacement:
https://uk.rs-online.com/web/p/aluminiu ... s/7328201/
Panasonic 1000μF Electrolytic Capacitor 25V dc, Through Hole - EEUTP1E102

Original - C15 - 1 x 25v 470uF 85c (Rubycon) 10D x 15H mm

Replacement:
https://uk.rs-online.com/web/p/aluminiu ... s/7111122/
RS PRO 470μF Electrolytic Capacitor 25V dc, Through Hole

Any advice gratefully received.

Peter.

Re: PHIHONG PSM 2512-2 REV A2 Capacitor replacement help

Posted: 03 Aug 2020 19:09
by exxos
peterhurn wrote: 03 Aug 2020 18:42 I have come up with the following suggested replacements from RS Components, I would have like to have gone for Panasonic but couldn't seem to find the right combination.

Original - C12 & C13 - 2 x 10v 2200uF 85c (Rubycon) 12D x 20H mm

Replacement:
https://uk.rs-online.com/web/p/aluminiu ... s/7110864/
RS PRO 2200μF Electrolytic Capacitor 10V dc, Through Hole
What about these ? https://uk.rs-online.com/web/p/aluminiu ... s/7083661/

You can use higher voltages. Just have to check physical dimensions. Generally that the dia and pitch, height there is normally plenty of.

Then a quick look, it looks like you can go from 900mA ripple to 2.6amps.

Re: PHIHONG PSM 2512-2 REV A2 Capacitor replacement help

Posted: 03 Aug 2020 19:43
by Tomswork
Does your power supply have a rifa capacitor on it a .01uf x2 275v rectangular shape. Those caps must be replaced they are the worst smelling smoke bombs. Find a Panasonic replacement sometime the parts are listed as 10nf x2 275 polypropylene

Tom