Omron 5ga-237p relay and MIMA_L

[thedhgroup]

I want to build a MIMA_L and the circuit design lists a couple of Omron 5ga-237p relays. I cannot find them in stock anywhere. I seem to have difficulties finding a substitute as well.

Any suggestions?

I'm afraid if I use a relay with a higher current rating on the coil that the transistor driving the coil may not be able to handle the current.

[retepsnikrep]

I suggest you go solid state and dispense with the relay altogether. Much more reliable and faster response. In the below diagram for the MAX4619 or HCT4053

Pulling the control input low gives normal mode and high switches to your MIMA signals.

I'm sure you can modify the design to work with this switch IC. It's what I use for IMAC&C.

[thedhgroup]

Originally Posted by retepsnikrep

I suggest you go solid state and dispense with the relay altogether. Much more reliable and faster response. In the below diagram for the MAX4619 or HCT4053

Pulling the control input low gives normal mode and high switches to your MIMA signals.

I'm sure you can modify the design to work with this switch IC. It's what I use for IMAC&C.

Sounds like a plan. Thanks for the suggestion. I don't have a oscilloscope so I hope I don't mess up. As I dig in I may have further questions...

[72chevel]

I bought some off of EBAY. Real cheap too!

OMRON Mini Relay G5A-237P 5V coil DPDT .5A 60VAC/DC - eBay (item 160575533137 end time Aug-16-11 13:50:01 PDT)

[thedhgroup]

Originally Posted by 72chevel

I bought some off of EBAY. Real cheap too!

OMRON Mini Relay G5A-237P 5V coil DPDT .5A 60VAC/DC - eBay (item 160575533137 end time Aug-16-11 13:50:01 PDT)

WOW! that is cheep. Well maybe I'll still go the relay route and convert to solid state later as I tinker. Actually, in a year or so I hope to be able to afford a full MIMA kit in what ever form they have evolved to by then.