Re: stand-off voltage of zener TVS device for a relay coil

mpm wrote:
On Jun 13, 1:42?pm, Matt <themattfe...@xxxxxxxxxxxxx> wrote:
http://relays.tycoelectronics.com/appnotes/app_pdfs/13c3311.pdf
Effects of Coil Suppression on Relay Dynamics and Life

And remember, this "study" is coming from a company that makes relays
(and therefore has a vested interest in lowering warranty returns,z
etc...), and also makes zeners, diodes and resistors.

I searched their website for the zener diodes and TVS devices recommended in those appnotes. I did not find any. I did find gas-discharge tubes, MOVs, capacitors, and resistors. They do not recommend capacitors and resistors for this application. They give honorable mention to MOVs, but they clearly prefer TVSs.

Coincidence??
Hummm.

Probably their P&B people want the customer to use the relay products in the best way.
.

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