Where to buy switch

[big vin]

Hi, i am going to mod a bunch of lights, and would like to buy 20 or so switches. Who knows wher i could buy these. Here is a picture of the current switch:

specs:
0.255 inch high
0.466 x 0.466 inch wide
The Board diameter is 0.786 inch
The switch makes groundcontact. The negative from the battery goes through the spring, then trough the risistor,
then in to the switch at A, and to the flashlight body via point B.

The switch on the photo is a two way switch. I would like to use the same board and change the switch to a single mode. I would like to keep the resistor, so i need to make/brake contact between leg A and B on the board.

If there is a standard board i could use with a single mode switch on it, that has the option of using a resistor that would be great.

It is going into a MTE ssc P7 light from dealextreme, and the P7 wil be replaced with the Nichia NCSU033A UV led. So the switch only needs to handle about 4 watts.

Thanx for your help!
Vincent

 

[alpg88]

there are tonns of websites that sell electronic components, i can't post a link but google will find them all in a sec.

 

[big vin]

I did find this one: http://www.dealextreme.com/details.dx/sku.5660

but will i be able to mod it to on-off-on-off while still using the resistor and will this fit on the board that i am using?

 

[carbine15]

That switch will fit (90% sure) and will allow on-off-on-off function if wired correctly.

 

[mudman cj]

The problem with the switch you linked to is it will have an extra mode to click through - so it would be like having two on1s or two on2s or two offs in a row depending on how it's wired. It sounds like what you want is a switch with two on modes, not three. So, you would have on1, off, on2, off, repeat. If that is what you want then get this switch instead. This switch also has all of the connections on one side like the one shown in your picture. Note that either on1 or on2 can be the resistored low depending upon where you attach the resistor.

 

[big vin]

How do i need to wire the sitch to get on-off-on-off? I need both ons to go though a resistor, is that possible?

if i take the switch that you suggest mudman do i not get: on1-on2-off?
if not how do i wire it that i can use a resistor in both ons? I could use a resistor after the switch, that way on-off-on-off would be perfect if i jump the original resistor with a piece of wire.

Best thing however would be to find a genuine on-off switch that will fit...

 

[VidPro]

so you ONLY want ONE mode?
seems the selection people picked would be wonderfull, you have one "input" and 2 Outputs to the switch, and on each of the outputs you could put one or more, or no resisters in seires with your connection, to control the current in your curcuit.

i have used the on-off-on-off style with resisisters on each output, then the ouptuts go to the led.
I have also used the on-off-on-off with one side Direct, and the other side resistered.
it sucks to have to go to off to switch modes :-(

the switch that mudman refers to the on-on-off would be perfect for doing a simple resister type of mod. have it turn on high, and next switch goes to low, and different resisters on each.


|--{~~}-----------Out to LED
|--IN from power source
|--{~}-----------Out to same place on LED
. . .^ resister thing

if you only want one mode, then there are switches just like that that do on-off only , or potentially you could use an On-OFF-On-off and just wire both outputs together, and then all it does is on-off

 

[mudman cj]

You might also want to consider switches from Digi-key. I have actually used all of the following in flashlight mods:
Part# 518PB-ND On, Off
Part# 530PB-ND On1, Off, On2
Part# 543PB-ND On1, On2, Off

 

[big vin]

The position of the legs of the on-of switch at digi-key do not match with my board, so best thing would be to just use the on-of-on-of switch and wire it so that it has two ons via one resistor.

 

[mudman cj]

If you just have the three legs on the right side of the switch then any of the switches I listed will work. You just have to bend them down and cut them off. That is also the case with the DX switch I linked in my earlier post (SKU 5604).

But, since you want both 'on' modes to go through the resistor your solution makes the most sense because obviously you won't have to make as many modifications to the switches.

 

[carbine15]

There's no reason to use a multi-mode switch for a single mode operation. With your switch, you'd have to bridge B and C making the switch function like this: on-on-off (This is stupid and nobody wants to work this hard to click to the off position)

You have an opportunity here to replace this reverse clicky with a forward clicky. I highly recommend this one from kaidomain. The switch will protrude from the light a bit more and might require that you trim the switchboot post. You can add a resistor along side it and it only functions in single mode. People like (no LOVE) forward clickys.

Check out mudmans sale post for very tiny resistors that work perfectly for this purpose.

PS, YOu don't need postions of the legs to match on your board. All you need is solder, wire and glue to fix the base to the board. Tiny tweezers help too. Oh, and a steady hand.