Unable to find diode or cross ref

[Kazit]

I am having difficulty locating information regarding some diodes. These diodes are either zener or TVS.

Can anyone help me identify it? A link to a cross reference information page would be really helpful. 

Will be looking to source them for repair projects.

Thank you for your time and efforts.

[Peter BENSCH]

Welcome @Kazit, 

marking SUG stands for the SMA6F13A-TR, SUA for the SMA6F5.0A-TR.
Both are obsolete, but can be replaced by SMA6J13A-TR and SMA6J5.0A-TR.

Regards
/Peter

[Kazit]

Thank you so much for your speedy reply, your efforts are highly apricated.