General > General Technical Chat
rocker switch, dpdt, mom-off-mom, 15x21mm series ?
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nipil:
Hello

I'm looking for a 15x21mm dpdt rocker switch of the mom-off-mom type, and i found only one reference on digikey (GRS-4023C)

As i am really surprised i haven't found another available reference, i call for help.  :scared:

Some additionnal info : The size contraint is important as i have to fit quite a few of them in a handle bar, and the 15x21mm is the maximum size i can fit. Dpdt is required as i use it to activated dc motors and invert their direction, without additionnal electronics (keep it simple to repaire on the field) . Momentary action is required for ease of use and automatic return to idle state.

Thanks in advance for your help
Regards, Nicolas
themadhippy:
Any reason it needs to be a rocker switch and not a toggle switch?
nipil:

--- Quote from: themadhippy on April 26, 2023, 09:59:50 pm ---Any reason it needs to be a rocker switch and not a toggle switch?

--- End quote ---

Less protrusion on the handle bar, lower risk of breaking the switch, and more natural feeling under the thumbs, similarity with other controls on the handle bar which are all 15x21 rockers

we would have gone for a toggle. switch if no rocker switch was found. but as i found only one reference, i cannot believe a momentary dpdt is such a corner case, so that's why i am reaching out, because my Google-fou is not powerful enough, as it seems.

and i forgot to provide a link to what i found, in case anyone is interested : https://switches-connectors-custom.cwind.com/viewitems/4000-series-miniature-rocker-switches/4000-series-center-off-miniature-rocker-switches

cheers
thm_w:
Dimension is so small its hard to fit 3 spade contacts on that size of switch. Once you get down that size you're looking at PC pins as well, something like this: https://www.mouser.ca/datasheet/2/140/ESCH_S_A0000509065_1-2544471.pdf
https://www.mouser.ca/datasheet/2/240/7000rocker-3050583.pdf
https://www.digikey.ca/en/products/detail/carling-technologies/61112481-0-0-N/16475884

But not really suited to outdoor use. Standard size seems to be 27x21mm (KCD4 self reset rocker switch, some sealed versions available).

12x19 cutout but unsure of the PN: https://leeselectronic.com/en/product/32843-rocker-switch-dpdt-on-off-on-125v-13a.html

nipil:
thanks for all, you helped me and the resulting product is nice !
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