I have a 393B04 PCB specs and a drawing denoting a "10-32 UNF 2A Coaxial Electrical Connector".

enter image description here

This is the same than a SMC Connector?. Can i purchase an standard SMC connector which supposedly fits the 10-32 UNF 2A thread?, or i must purchase 10-32 coaxial connectors?


  • The spec only focus on the thread, not on the electrical connector. I guess this is for commercial purposes, for selling built expensive cable,
  • As definitions: jack: thread outside, plug: thread inside, male: a pin contact, female: a covering contact,
  • As indicated, clearly this is not a regular SMC connector, which is a male jack,
  • Unless i should seek for a SMC reversed polarity (this is, a female jack), which i dont think exist, or perhaps as rare as a 10-32,
  • An SMA has a 1/4-36 thread, An SSMA has a 10-36 thread, and the SMB no thread at all :),
  • CDInt sells both 10-32 to SMA and 10-32 to SMC cables.....!,
  • The device shows a female jack.

So i should finally purchase a 10-32?

enter image description here Thanks in advance.

  • 1
    \$\begingroup\$ Could you link the drawing? \$\endgroup\$
    – user103993
    Dec 21, 2016 at 13:15
  • \$\begingroup\$ My question is because pasternack sells both the SMC and the 10-32!!, so thats why i was confused. \$\endgroup\$
    – Brethlosze
    Dec 21, 2016 at 13:31
  • 1
    \$\begingroup\$ ... Also for reference/curiosity an SMB connector is a push fit connector Like this image \$\endgroup\$
    – user103993
    Dec 21, 2016 at 13:38
  • \$\begingroup\$ you deleted your answer, i was going to mark it :). \$\endgroup\$
    – Brethlosze
    Dec 21, 2016 at 14:27
  • 1
    \$\begingroup\$ My answer was incorrect \$\endgroup\$
    – user103993
    Dec 21, 2016 at 15:06

1 Answer 1


10-32unf and SMC are not compatible:

  1. on the 10-32unf male = a nut + a central pin
  2. on the 10-32unf female = a screw + a central hole
  3. on the smc female (called plug) = a nut + a central hole
  4. on the smc male (called receptacle) = a screw + a central pin

your sensor : electrical connector is a 10-32unf female

  • \$\begingroup\$ Thanks for your confirmation... \$\endgroup\$
    – Brethlosze
    Feb 26, 2020 at 3:58

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