I bought these supposedly 30v zener diodes.could anyone confirm that they are as such?Never saw such notation.
PS.They are indeed...just measured them, but i couldn't find a 40v supply at hand before writing this topic..As i can't delete it anymore...
PS.They are indeed...just measured them, but i couldn't find a 40v supply at hand before writing this topic..As i can't delete it anymore...
Attachments
Last edited:
I can't by looking at it, but you should be able to confirm it operates like one if you have a variable >30v DC power supply that you can vary the voltage output from and a multi meter to measure the voltage drop across it. Probably should put a limiting resistor in series with it to avoid shorting out your power supply.
Clever kludge 🙂No 40v supply? Got a 30v supply? Add a 9v battery in series with it for your tests.
30V? Strange value. The orange strip usually denotes a 3. Maybe a thick orange strip is double 3. 33V is a more common value. Did you test it with at least 5mA? Like 40V supply and 1k series resistor.
It's clearly 30.0v not 33 at 1...3ma, but i wouldn't run them anyway at 5ma because of the temperature drift .They just look like precision ones.Now i have 14 of them and every each one sets in about 10 seconds at 29.9...30.1 v at 1...2ma after quick soldering the leads.I have all sorts of odd values, but these ones were the only ones i couldn't identify.
Last edited:
- Home
- Design & Build
- Parts
- Can anyone identify or confirm this is a 30v zener diode ?