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soldering to a relay


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ssbowtie1 
Copper - Posts: 74
Copper spacespace
Joined: January 11, 2010
Location: California, United States
Posted: February 12, 2010 at 8:56 AM / IP Logged  
Can you hurt a relay by soldering directly to it? I have limited space to work with so if I solder directly to the relay and tape it up I can keep the overall size to a minimum. I just want to make sure I won't destroying anything by heating up the legs melt solder to them.
i am an idiot 
Platinum - Posts: 13,693
Platinum spaceThis member consistently provides reliable informationspace
Joined: September 21, 2006
Location: Louisiana, United States
Posted: February 12, 2010 at 9:35 AM / IP Logged  

You will be fine. 

Chris Luongo 
Platinum - Posts: 3,746
Platinum spaceThis member consistently provides reliable informationspace
Joined: May 21, 2002
Location: Massachusetts, United States
Posted: February 13, 2010 at 11:41 AM / IP Logged  
You should be fine.
Another option (and what I usually do) is to use female crimp-on spade terminals on your wire. This makes it easier to replace the relay, but is still much smaller than using a regular relay plug and harness.
tommy... 
Gold - Posts: 1,901
Gold spacespace
Joined: December 10, 2004
Location: United States
Posted: February 13, 2010 at 1:46 PM / IP Logged  
I always use the INSULATED female spades(although the legs are quite abit apart...just for safety)...Then tape from the top of relay past the "legs" and then up the wire...Leaving 4-6 inches for connection(depending on what your doing...Kinda muffles the click of the relay some too...)
M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!
KPierson 
Platinum - Posts: 3,527
Platinum spaceThis member consistently provides reliable informationspace
Joined: April 14, 2005
Location: Ohio, United States
Posted: February 13, 2010 at 2:36 PM / IP Logged  
 You can damage anything by soldering to it.   The biggest issue you'll have soldering to the relay is, if you arn't careful, the plastic will start to melt around the legs and that can cause them to work free (and possible break).  Use low heat (around 650F no more then 700F) and try to minimize the amount of time you have the iron on the pin.  Also, try not to touch the actual pin with the iron, instead heat the wire up and apply the solder directly to the pin.
Kevin Pierson

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