Please your help to recognize a Zener Diode.

[elara]

The element is a Zener Diode and seems to have printed the 272 number on it and was pulled out from the input filter in the primary stage of a VWR1200-D switching power supply board in a Pioneer CLD-99 laserdisc. I was unable to find any detail for this element on the service manual. This element is D4 in layout of board.

I would like to find a replacement exactly the same, but I don't know how to interpret the code that is printed on it. I am not a technician and this is all the information I have about.


Thanks you very much in advance.