Cheap jameco.com opto-isolator $0.35 for 100+

[stempile]

I would suggest building your SSRs from parts picked up from Jameco even if you are buying from mouser as well. Often jameco.com will run free shipping offers as well.


Jameco.com item#277819
OPTO,MOC3023,DIP-6
OPTOISOLATOR TRIAC DRIVER

# of Units $US EA
1+ 0.46
10+ 0.419
100+ 0.353

https://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&storeId=10001&catalogId=10001&pa=277819&productId=277819



The mouser.com equal price breaks as follows:
512-MOC3023M
Optocouplers DIP-6 NON-ZERO TRIAC

1: $0.76
25: $0.65
100: $0.54
250: $0.45

http://www.mouser.com/search/ProductDetail.aspx?R=MOC3023Mvirtualkey51210000vir tualkey512-MOC3023M

[LRNeener]

I found some cheap optos on Ebay.
In lots of 200 at .15 cents each
http://cgi.ebay.com/200-LOT-TIL3010-TRIAC-DRIVER-250V-100mA-DIP-6-MOC3010_W0QQitemZ230160465810QQihZ013QQcategoryZ50 917QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
In lots of 10 at .20 cents each
http://cgi.ebay.com/10-LOT-TI-TIL3010-TRIAC-DRIVER-250V-100mA-DIP-6-MOC3010_W0QQitemZ230159295804QQihZ013QQcategoryZ50 917QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

They have the same specs as the moc3010 from what i can tell.
I have orderd about 300 and all the ones i have tested (used) have worked.

[cmurray]

They are random cross so they will work for dimming.
The trigger is 15ma on that part instead of 5ma.
Your resistor will need to be lower than 246 ohm and Your board power consumption will triple.

Other than that they should work fine.

JOel

[Doug-in-the-woods]

I didn't like the idea of consumming more power. Don't know if the 595 Brians coop will handle it when you daisy chain boards together.
That same vendor does have the LEDs really cheap. I ordered 100 for $1.99