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How to pick correct push button switch? Answered

Hi, the pushbutton switch in my coleman lamp is broken and I need a replacement. It's a push button with 2 leads. I don't know how to tell if its spdt, spst, or the other ones. How do I pick the right switch? Its rating says it is 5A/40A 250V. It stays in the on position until it its pushed again. I linked some pics on imageshack (couldn't get the uploader here to work.). Maybe that will help. Thanks

http://img692.imageshack.us/i/img0705d.jpg/
http://img683.imageshack.us/i/img0706b.jpg/
http://img683.imageshack.us/i/img0707n.jpg/





Discussions

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steveastrouk

8 years ago

You want a Single pole, single throw, latching push button.....


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phillyjsteveastrouk

Answer 8 years ago

I was looking at radioshack parts and saw this (http://www.radioshack.com/product/index.jsp?productId=2049717&filterName=Type&filterValue=SPST).

By latching, you mean on-off and it stays at on until pushed?

Do you know how to choose the correct rating? The thing runs of a 5V lead acid rechargeable battery.  I don't know how which is a safe number.

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steveastroukphillyj

Answer 8 years ago

I choose the correct rating by looking at the application and the wire already used. A 5A rating will be more than enough here. And latching means it stays "latched on" or "latched off" when pressed.

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frollardphillyj

Answer 8 years ago

Latching does indeed mean 'push on push off'.  The other type of switch is 'momentary', which is only while its being held down.


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frollard

8 years ago

You may have trouble finding an EXACT replacement switch, but anything that has a similar shape and function should be okay.

If it runs off batteries it doesnt need to be a 250 volt rated switch.  The one you have is designed to switch household current to small electronics.  It's a good idea to keep the same specs, but not 100% necessary.  In this case they probably had lots of switches laying around.