This is a through-hole 12mm coin cell battery holder. It's the unit we like to use as RTC backup and SRAM backup for GPS units. Holds battery in place with friction. Metal housing is +, PCB pad underneath is -.
This battery holder is sold in single units.
This skill defines how difficult the soldering is on a particular product. It might be a couple simple solder joints, or require special reflow tools.
Skill Level: Noob - Some basic soldering is required, but it is limited to a just a few pins, basic through-hole soldering, and couple (if any) polarized components. A basic soldering iron is all you should need.
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Actually, the correct datasheet is here. This is a through hole component, Keystone only sells one of them: http://www.keyelco.com/product.cfm/Thru-Hole-Mount/3001/product_id/778
datasheet link is broken. its one of these. http://www.keyelco.com/category.cfm/For-12mm-Dia-Cells/Surface-Mount/p/405/id/849/c_id/982 cant tell which as SF don't publish the manufacturer number....
Where would I find the eagle footprint for this?
I've ordered this and it fits my CR1220 fine. CR1220s are 12.5 x 2.0mm. Would the CR1225 that you sell also fit even thought is a little thicker at 12.5 x 2.5 mm?