Re: MegaSTE/TT PSU (Phihong PSM-5341) opto coupler orientation

[EdOX]

Hi everyone

I just received the recap kit for my TT and I am puzzled with the opto coupler installation


The original one has a mark (circle) on the pin 1 (anode)

Original opto coupler

IMG_9562.jpg (296.99 KiB) Viewed 2246 times

while the one from the kit does not have any mark:

Opto coupler from kit

IMG_9560.jpg (133.08 KiB) Viewed 2246 times

I would like to be sure which pin is pin 1 on the new opto in order to install it correctly

Thank you

[Steve]

Checking the datasheet:
https://www.vishay.com/docs/83607/cny17f.pdf

On page 7 of the datasheet, it looks like it's the top left of the chamfered edge.

Screenshot From 2024-10-22 08-48-44.png (98.72 KiB) Viewed 2222 times