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Drawing new component

Former Member

Hi,

 

I'll be drawing a component I have which doesn't seem to be in any package available.

It's a battery holder (2032), the datasheet can be found here: http://www.farnell.com/datasheets/1505855.pdf

 

I've drawn several projects before in autocad for work, but they were houses image

But a measure I haven't seen before is 2 x θ1 ± 0.1 ...

So its obvious that they pointed out the 2 pins of 1mm diameter, but what about the "±0.1" ?

 

I know this ain't really an EAGLE specific question, but not sure where to be asking this question.

 

Regards,

Peter

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  • in reply to shabaz

    Hey shabaz,

     

    Thanks for the fast response. So it's adviced to take about 0.2mm above the thickness with it's tolerance of any component?

     

    Also, not sure if i need to create another topic for this.

    But as you might have noticed on the datasheet there are 3 pillars of 1.5mm But they only stick out of about 0.1 or 0.2mm out of the back of the holder.

    Should this mean the PCB needs to be perforated all the way through? or partially? If it's partially how should this be represented in EAGLE?

  • in reply to Former Member

    Hi Peter,

     

    Yes about 1.3mm is sufficient (there is probably guidelines, but if you're hand-soldering a prototype, 1.3mm is fine.

    You can go bigger if you want (no real harm for a prototype).

    Regarding the pillars, you just specify them as normal full holes; they are just there to provide some mechanical keying/stability for the

    battery holder. It's not possible to specify a partial hole (except for >2-layer boards possibly) - and it would be expensive.

  • in reply to shabaz

    shabaz Inscribed thus:

     

    Hi Peter,

     

    Yes about 1.3mm is sufficient (there is probably guidelines, but if

    you're hand-soldering a prototype, 1.3mm is fine.

    You can go bigger if you want (no real harm for a prototype).

    Regarding the pillars, you just specify them as normal full holes;

    they are just there to provide some mechanical keying/stability for

    the battery holder. It's not possible to specify a partial hole

    (except for

    2-layer boards possibly) - and it would be expensive.

     

    Careful !  Those pillars are there to enable the device to be cleaned

    underneath it and to avoid trapping moisture from the washing process.

     

     

    --

    To view any images and attachments in this post, visit:

    http://www.element14.com/community/message/73260#73260

     

     

  • in reply to autodeskguest

    Upon closer inspection, you're right - odd it's on the PCB mounting layout. Other vendors don't put it there on the datasheet,

    but this one does.

  • in reply to shabaz

    shabaz Inscribed thus:

     

    Upon closer inspection, you're right - odd it's on the PCB mounting

    layout. Other vendors don't put it there on the datasheet,

    but this one does.

     

    --

    To view any images and attachments in this post, visit:

    http://www.element14.com/community/message/73304#73304

     

    I got caught by a clover leaf power socket !  Three pins plus two

    securing pins and four 1.5mm stand off pins.  Drilling holes for all

    the pins meant that the socket was loose on the board and not square

    after soldering.