[Summa]

Hi, there's a Zener diode in the kit with the markings 24 28, can't tell if that's the Z12V that I'm looking for as it says 22 in the docs

[JPK]

Zener 2V7 : BZX 55C 2V7
Zener 4V7 : BZX 85C 4V7 (larger diode)
Zener 12V : ON 24 2B

[Summa]

 cool and oh its an B not an 8, really hard to tell  

[AcdNrg]

For those that struggle with the diodes (like me, old eyes), this is what was in my bag. As I had a hard time reading the exact markings, it took me a while. All references based on documentation package 24 and of course things may change when replacements from other parts manufacturers are used due to availability issues.

----------------------------
D6
Zener Z2V7

Markings on body (black stripe to the left):
BZX
55C
2V7

----------------------------
D16
Zener Z12V

Markings on body (black stripe to the left):
ON  (or maybe DN)
24
2B

----------------------------
D20
Zener Z4V7

Markings on body (black stripe to the left):
BZX
85C
4V7

----------------------------
D4, D5 etc. (the set of 12)
NPN

Markings on body (black stripe to the top):
N914