Amund,
For 12V DC and 1kV (40 ohm) surge I prefer transils (STM:SM6T18A) because of
lower voltage during surge.
I have no experience with 2 ohm surges.
Piotr Galka
----- Original Message -----
From: Amund Westin <mailto:[email protected]>
To: [email protected]
Sent: Monday, October 12, 2009 9:34 PM
Subject: Surge protection components - DC line
24VDC port shall be protected against 1kV (line-earth 10ohm) and 500V
(line-line 2ohm). (ref.IEC61000-4-5 8/20us pulse)
Should I go for MOVs or tranzorbs?
I have good experience with MOVs on 230VAC ports, but have not done any
work
on DC ports.
#Amund
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