At 06:01 PM 8/31/00 -0700, AmR A. wrote: >Hi, > >I have a 12VDC relay but i can't identify its pins >the relay in a blue square shape > >pins from top-view >------------- >| o o | >| | >| o | >| | >| o o | >------------- >there is a writing in top " SONGLE" >and small circle at the top-right side . > >What are the input and output pins ? > >Thanks Looks like a standard footprint. But instead of telling you what I think the pins are, how about I tell you how YOU can find out what the pins are? You will need an ohmmeter of some sort. Measure the resistance of 1 pin (any pin) to all the others. You will see one of three results: 1) no conduction to any other pin 2) a very low resistance to one pin 3) a resistance reading of several tens or hundreds of ohms. Case 1) the pin is either not used (unlikely but possible) or is the Normally Open contact of the relay. Case 2) You have found both the Armature and Normally Closed pins on the relay. Case 3) You have found the coil. Do this until you have identified both the coil and contacts on the relay. Then apply power to the relay coil and look for a low resistance reading between the pin identified in Case 1 and one of the pins identified in Case 2. The pin that showed low resistance both times (steps 1 & 2) is the armature. Done! dwayne Dwayne Reid Trinity Electronics Systems Ltd Edmonton, AB, CANADA (780) 489-3199 voice (780) 487-6397 fax Celebrating 16 years of Engineering Innovation (1984 - 2000) * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Do NOT send unsolicited commercial email to this email address. This message neither grants consent to receive unsolicited commercial email nor is intended to solicit commercial email. -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics