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#1 2009-10-18 22:04:15
- bushing
- Contributor
- Registered: 2008-10-14
- Posts: 42
Hirose connector?
Why was this particular Hirose (MQ172X) connector chosen as the antenna connector? (DigiKey links to a drawing and the datasheet.)
It looks like this connector is fairly similar to USB connectors in size -- in fact, the HOWTO in the Files section suggests the use of a "USB to Hirose" cable to make an HF antenna. However, the advice about picking a cable that it gives isn't very helpful -- "
there
are
multiple
mini‐USB
cables
available
on
the
market,
so
make
sure
you
buy
the
correct
one.
" 
The connector looks a lot like this, except this cable isn't keyed and probably wouldn't fit without cutting away the key notch from the PCB connector:
USB 2.0 A Male to Mini-B 4pin Male 28/28AWG Cable - 6ft
Can anyone point me at some cables that are known to work? Is there any reason to not replace this connector on the PCB with a standard USB connector so that off-the-shelf cables could be used?
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#2 2009-10-18 23:11:09
- henryk
- Contributor
- Registered: 2009-07-27
- Posts: 99
Re: Hirose connector?
Is there any reason to not replace this connector on the PCB with a standard USB connector so that off-the-shelf cables could be used?
No. The best reason I could come up for using this connector is to prevent accidental misconnections, e.g. in order to prevent someone from mistakingly connecting the antenna to the USB port, or worse, a live USB host to the antenna port. I think this goal is pretty much achieved, you'd be hard pressed to find anything but a proxmark antenna to connect accidentally to this connector 
Can anyone point me at some cables that are known to work?
I couldn't, for the life of me, find any cable at all. I ended up ordering the connector from digikey and making one myself. For future reference, because this was kind of hard to find out, the digikey part number is H10486-ND
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#3 2011-06-04 10:59:11
- nemer
- Contributor
- Registered: 2010-09-07
- Posts: 34
Re: Hirose connector?
About Hirose connector ,I found a kide of USB connector and it works.But I'm not sure the formal name.Its shape looks like below:
┌┐┌─┐┌┐
│└┘ └┘│
└─────┘
Last edited by nemer (2011-06-04 11:01:31)
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