Society of Robots - Robot Forum
Electronics => Electronics => Topic started by: ksquared on June 28, 2009, 02:42:54 PM
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I noticed Digi-key, when talking about switches, says that switches have the following characteristics:
Actuator Type Circuit Contact Rating @ Voltage Manufacturer Mounting Type Orientation Series Switch Function Termination Style
However. I think I can guess what many of these things mean (having sure looked at them enough) however, some definitions are hard to come by.
Could someone be so kind as to tell me PC-pin and Wire-Wrap termination is? What is the orientation? My filters have me down to right angle, vertical, and "vertical, right angle. "
Of course you are welcome to post any more information if you like, but at the moment those two are the ones I'm most curios about. Thanks!
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pc pin I believe refers to header like contacts that easily insert in a PCB. Wire wrap may have a hole in the terminal used to solder a wire onto, or the contact may be unusually long.
The orientation is simply is the switch bent (right angle) or straight up (vertical).
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Hi,
Could someone be so kind as to tell me PC-pin and Wire-Wrap termination is?
PC-pin is most likely what we normally refer to as through-hole, i.e. good oldfashioned pins mounted through holes and soldered on the opposite side of the PCB.
Wire-Wrap is a technique where you wrap a wire around a square pin (with a special wrap tool) and at the corners, you generate a weld by the pressure applied. Wire-wrap gives lower resistance than soldering. Wire-wrap pins are usually quite long and most often, you solder a couple of pins before wrapping, to stabilize the device.