I was looking for suggestions for a low profile, polarized 2-pin power connector header, suitable for PCB mounting at 0.1" pitch spacing.
Note, the pins don't have to be spaced at 0.1", just a multiple of that, so it can be mounted (e.g.) on standard protoboard.
Low profile in the sense the header sits less than 8mm above the PCB.
I was looking at the JST XH headers,
which have a 2.5mm pitch, so would be OK as far as the PCB/protoboard mounting goes, and they are low profile, but they look a bit tiny and fiddly to work with. Overall, I think I'd prefer something a little beefier. Also, they also look like crimping the tiny pins for the connectors could be a pain. I'd prefer to be able to solder pins rather than crimp if that was an option (but not a deal breaker.)
majenko:
Those connectors are commonly used for connecting batteries (Li-Ion, etc) to boards.
How "low profile" does it need to be? Would a simple right-angle Molex KK (or JST equivalent) do?
I was looking at the molex kk, and the pins on the vertical 2695 series (2.54mm pitch) sit about 7.5mm above the pcb surface, so that might be OK for clearance. Looks like they are somewhat beefier than the JST XH series. The pins are still crimp system only, it appears -- have you any experience crimping these particular pins?
majenko:
Those connectors are commonly used for connecting batteries (Li-Ion, etc) to boards.
How "low profile" does it need to be? Would a simple right-angle Molex KK (or JST equivalent) do?
I was looking at the molex kk, and the pins on the vertical 2695 series (2.54mm pitch) sit about 7.5mm above the pcb surface, so that might be OK for clearance. Looks like they are somewhat beefier than the JST XH series. The pins are still crimp system only, it appears -- have you any experience crimping these particular pins?
Not personally, but they are pretty much one of the most common connectors around, so you may be able to dig out some pre-crimped cables from some other piece of equipment. Crimping them isn't too hard though as yes, they are bigger and beefier than the others.
Farnell have some low-profile 3.3mm jack style power connectors, thru-hole socket is 7.5mm high (just
within your spec), part number 121-6992, matching plug is 121-6985, rated at 13.5V 2A, clearly intended
for notebooks or similar. They have a NC switch built in too.
MarkT:
Farnell have some low-profile 3.3mm jack style power connectors, thru-hole socket is 7.5mm high (just
within your spec), part number 121-6992, matching plug is 121-6985, rated at 13.5V 2A, clearly intended
for notebooks or similar. They have a NC switch built in too.
Thanks Mark, they look quite good, but looking at the mechanical drawings, I don't think they have 0.1"/2.54mm pin spacing suitable for protoboard etc. Worth keeping in mind for another application, though, so thanks for the leads.
