Hi guys, complete n00bie here

What's the purpose of a slim relay? As opposed to different relays for example? I tried googling the answer but no luck.

 

Hello,

They seem to be small relays from Omron:
http://search.yahoo.com/search?n=10...=0&vf=all&vm=i&fl=0&fr=404&p="slim+relay"&vs=

Bertus

 

Just from googling the name, I'd say it was a mechanical design parameter, so the relay will fit in its enclosure of the PCB or on a mounting rack.

 

another design for relays is the tone relays that act as tuning forks to respond to only certain frequencies, they are usually long and slender.