1. Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
    Dismiss Notice

Does this rotary type exist?

Discussion in 'General Electronics Chat' started by stuhagen, Aug 14, 2017.

  1. stuhagen

    stuhagen Member

    Joined:
    Aug 13, 2008
    Messages:
    204
    Likes:
    0
    I am trying to source a similar platform rotary switch with no luck. Turning either direction is a momentary grounding connection. I made a test set up with 2 push button momentary switches and the results worked. It has to be this type of rotary to fit into the existing circuit board.

    I have exhausted searching on Mouser and Digikey and I cannot find rotary style momentary with continuous indents. I have tried Encoders and they do not work in this application. Turning clockwise sends a grounding signal to speed up a fan, CCW sends a signal to lower fan speed.

    This is the size and shape I am hoping to get close to. Any help on what this maybe called and if there is such a beast. I contacted ALPs in Japan and they do not offer these anymore.

    Stu
     

    Attached Files:

  2. Ian Rogers

    Ian Rogers Super Moderator Most Helpful Member

    Joined:
    Mar 28, 2011
    Messages:
    9,163
    Likes:
    909
    Location:
    Rochdale UK
  3. AnalogKid

    AnalogKid Well-Known Member

    Joined:
    Sep 22, 2011
    Messages:
    1,106
    Likes:
    160
    Location:
    Ohio - GMT-5
    One problem with replacing that switch is that the pcb holes are not in line with the centerline of the switch body and its mounting bushing. If keeping that arrangement is important, what about a SPDT toggle or rocker switch? Way more reliable than a rotary switch. If you get one with wire-wrap leads, they can be bent in a zig-zag pattern to reach the pcb holes that are not in line with the bushing.

    ak
     
  4. dave

    Dave New Member

    Joined:
    Jan 12, 1997
    Messages:
    -
    Likes:
    0


     
  5. stuhagen

    stuhagen Member

    Joined:
    Aug 13, 2008
    Messages:
    204
    Likes:
    0

    I am somewhat restricted on fitting in a specific area and having anything other than a rotary would not really work.

    I will search to see if that place has an ALps where the pins are rotated 90 degrees
     

    Attached Files:

  6. schmitt trigger

    schmitt trigger Active Member

    Joined:
    May 24, 2009
    Messages:
    886
    Likes:
    84
    I truly hope that you will find a suitable replacement.

    Be aware though, that many OEMs request specific modifications to catalog items. Which the parts manufacturer may agree to do if it makes a sensible business case.

    Once that the OEM no longer orders the part, it is then discontinued.
     
  7. gary350

    gary350 Well-Known Member

    Joined:
    Dec 28, 2005
    Messages:
    1,097
    Likes:
    53
    Location:
    Murfreesboro, TN 37129 USA
    Yes it exists. Check Allen Bradley Switches. Buy a center position switch rotary operator with momentary movement left and right. Buy contact block separate NO and NC to attach to the switch. You can have up to about 8 contacts of NO and NC contact if you want. You buy contacts separate to put on the rotary operator.

    Check with any industrial electrical supply store. There are other brands available some in smaller miniature versions.
     

Share This Page