5C diode part name

Hi all,

I would to know what kind of diode is this with code 5C. Picture is attached for your kind reference. Thanks in advance.
 

Attachments

  • 20210807_122851.jpg
    20210807_122851.jpg
    181.3 KB · Views: 118
Did your try Nigel,s post ?

After going through many search engines (non Google ) the only definite semiconductor device ---only ---marked =5C was a SOT23 by Zetex Switching Diode (SMD) in pairs of =70volts/200ma.

Industrial component manufacturers sometimes when supplying large numbers of components to an electronic equipment manufacturer leave out details that would be useful to repairers but known to the equipment manufacturers,
 
It could be a BZX line zener, like the BZX2.5C. It's a large zener, so it's a power zener (if it is a zener.)

Where in the circuit did the diode come from? That could prove vital in checking what diode this could've been.

Are you sure it says 5C? The shape of that "5" looks oddly like a worn out 6 to me. 6C is a pretty common marking for zeners

More edit: given the package looks to be DO35 (the axial package), HZ6C1 seems like a likely candidate? HZ6C1 datasheet

Industrial component manufacturers sometimes when supplying large numbers of components to an electronic equipment manufacturer leave out details that would be useful to repairers but known to the equipment manufacturers,
No, not really. C codes are pretty common ways of making it cheaper to print these numbers on 'jelly bean parts' - that being parts that are fairly widely used, produced and recognized. An experienced repair technician will know what the C codes are and what diode to look for.
 
Last edited:
Short names are common, C3153 is 2SC3153, for example.
The procedure should be - device type - package size - function - likely part number.
There is hardly any space on a Zener the size of a 4148 to put all the details...


And most electronics were simply not intended to be opened by someone like us!