logicnibble
New Member
Hi!
I've been searching and reading a lots of papers about choosing the right overvoltage protection devices.
A good explaining article is:
**broken link removed**
I want to protect:
- Power supply output (12V powered from the board to external devices)
I want to protect from:
-ESD (TVS diode recommended)
-Lightning (MOV recommended)
-Inductive load switching (MOV recommended)
-More protection the better...
So I have now this dilema: TVS diode or MOV?
TVS Diode:
-faster response (1ps).
MOV:
-higher current and power capacity.
Which one must I use?
Can I use both in parallel? I guess not since they have different breakdown voltages, and the one that has the lowest will be working but the other won't?!
Or can I use a low power TVS diode in parallel with a high power MOV?
Thanks!
I've been searching and reading a lots of papers about choosing the right overvoltage protection devices.
A good explaining article is:
**broken link removed**
I want to protect:
- Power supply output (12V powered from the board to external devices)
I want to protect from:
-ESD (TVS diode recommended)
-Lightning (MOV recommended)
-Inductive load switching (MOV recommended)
-More protection the better...
So I have now this dilema: TVS diode or MOV?
TVS Diode:
-faster response (1ps).
MOV:
-higher current and power capacity.
Which one must I use?
Can I use both in parallel? I guess not since they have different breakdown voltages, and the one that has the lowest will be working but the other won't?!
Or can I use a low power TVS diode in parallel with a high power MOV?
Thanks!