Ideal lenght for Selective solder

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Using ERSA Ecoselect. I am curiuos to hear from other sel... - Aug 19, 2013 by Dback

When bridging becomes an issue, I like short leads. Lead Fr... - Aug 20, 2013 by ProcEng1

Dback

#70441

Ideal lenght for Selective solder | 19 August, 2013

Using ERSA Ecoselect.

I am curiuos to hear from other selective solder users as to what is the ideal lead lenght for your application on thru hole components. Shorter leads have helped us decrease solder bridges.

We find ours to be from .75 mm to 1.25 mm. This being the measured distance from the bottom of the PCB to the end of the lead.

Most compoenents are either hand cut using templates, or if possible one of our lead cutting machines.

Thanks in advance for your input.

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ProcEng1

#70448

Ideal lenght for Selective solder | 20 August, 2013

When bridging becomes an issue, I like short leads. Lead Free is where I see most bridging occur. Usually when lead length starts to approach lead spacing. As long as the lead is discernible in the joint, it's acceptable.

If you are having trouble with something like a double row header bridging and you don't want to trim the leads, try changing your program so that you are soldering each row independantly.

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