Would you use a diode in this situation?

Hello JasonL,

My Bosch brand relays arrived today.  The diagram is as below.  Is the diode incorporated as you thought it might be?

Lee, I'm about 99% sure that your relays don't have a diode.

Here are some diagrams that show how it would look.  A blank rectangle represents a resistor, and a triangle w/ a line is a diode.

http://www.chiefent.com/products/product_print.asp?id=28

http://www.chiefent.com/products/product_print.asp?id=3

http://www.chiefent.com/products/product_print.asp?id=19

Hope that helps.

I usually put a small capacitor across the relay contacts too.

This stops the relay contacts from arcing when they open or close and will help them last longer.

Regards,

Dave

Hi Dave,

You solder one in?  That sounds like a lot of trouble.