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Zinc plated servo extension pins

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Old 03-11-2018, 08:56 AM
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karolh
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Default Zinc plated servo extension pins

I recently purchased some servo extensions online that have zinc plated pins. I am accustomed to only using extensions with gold plated pins so am somewhat hesitant to use these and would appreciate comments on how safe is it to use extensions with this type of pins.
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Old 03-11-2018, 11:49 AM
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Zeeb
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They'll only carry about half the current (amps) that the gold plated pins will carry.
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Old 03-11-2018, 12:30 PM
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Zinc? I've never, ever seen electrical connectors with zinc pins. Tin or silver plate, yes, but never zinc.

With gold plating being so common these days, I'd opt for that. Anything but gold can be subject to fretting and other corrosion over time. Gold is not the best conductor though with silver and copper taking the top ratings there. Silver or silver alloys are most common for switch contacts where the mechanical action of the switch helps to counteract any corrosion that might develop over time.

Many lower cost receivers in various brands still use silver or tin plated pins for the servo / power connections.

Last edited by Truckracer; 03-11-2018 at 12:49 PM.
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Old 03-11-2018, 03:20 PM
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karolh
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You could be right as I possibly just assumed it was zinc as looking on them now it sure looks like they are tin plated. I am not too worried about their amp carrying capability as they would be used in a 20cc size gas model fitted with std. size servos.
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Old 03-11-2018, 03:35 PM
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If tin or other bright metal, just unplug and reseat them every few months and they should be fine ... if they are a decent quality connector otherwise. Especially in a humid environment.
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Old 03-11-2018, 03:43 PM
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karolh
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Originally Posted by Truckracer View Post
If tin or other bright metal, just unplug and reseat them every few months and they should be fine ... if they are a decent quality connector otherwise. Especially in a humid environment.
Truckracer; will do as you suggest.
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