Wire DC Power Jack for 9V Battery

BubbaGump · 27th May 2010, 11:26 PM

I have a PCB which has a spot for a DC power jack, with three pins, but i'd like to use a 9V battery instead. Can anyone help me out on which pins are positive and negative?

BubbaGump · 28th May 2010, 02:02 AM

For some reason my images won't upload, but the 2.5 mm dc jack is center positive. I see that the center connection corresponds with the pin on the back of the jack, so I know where positive lead goes. Does that mean the other two pins should be negative? And would you recommend a different power source than 9V? The chip has an operating voltage of 2.4 to 5.5V. I'm using the 120 Second Voice Recorder Module found here: http://www.electronics123.com/s.nl;j...c=8&category=2

jleaman · 28th May 2010, 03:40 AM

Quote:

Originally Posted by BubbaGump

For some reason my images won't upload, but the 2.5 mm dc jack is center positive. I see that the center connection corresponds with the pin on the back of the jack, so I know where positive lead goes. Does that mean the other two pins should be negative? And would you recommend a different power source than 9V? The chip has an operating voltage of 2.4 to 5.5V. I'm using the 120 Second Voice Recorder Module found here: http://www.electronics123.com/s.nl;j...c=8&category=2

should be in the instructions. If not ask them for the instructions.

27th May 2010, 11:26 PM	#1
BubbaGump diyAudio Member Join Date: Mar 2007	Wire DC Power Jack for 9V Battery I have a PCB which has a spot for a DC power jack, with three pins, but i'd like to use a 9V battery instead. Can anyone help me out on which pins are positive and negative?

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28th May 2010, 02:02 AM	#2
BubbaGump diyAudio Member Join Date: Mar 2007	For some reason my images won't upload, but the 2.5 mm dc jack is center positive. I see that the center connection corresponds with the pin on the back of the jack, so I know where positive lead goes. Does that mean the other two pins should be negative? And would you recommend a different power source than 9V? The chip has an operating voltage of 2.4 to 5.5V. I'm using the 120 Second Voice Recorder Module found here: http://www.electronics123.com/s.nl;j...c=8&category=2