Custom Interposers

Smiths Interconnect
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Smiths Connectors Interposers utilize spring probe contact technology in custom connector designs. Mixed signals and functionality can be designed into a single connector.

The interposer, or contact array, is the heart of the connector. It is also Smiths Connectors specialty – as the world’s leading spring contact probe manufacturer we are uniquely positioned to bring the advantages of this contact mechanism to life.

Insertion Life

Spring contact probes are driven by helical coil springs. This, combined with advanced materials and plating expertise, allows us to offer connectors which are capable of hundreds of thousands of insertions when properly specified. Even wiping interconnects can be made to withstand millions of rotations.

Signal Integrity

Bandwidths of 20 GHz and data rates of 12 Gb/S are possible with simple pin field interposers. This is due to extremely short contacts and our expertise in predicting their behavior in application.

Interposers may also be made coaxial through the use of precision-machined insulators and metal interposer bodies, featuring a spring-loaded shielding plunger; this may be added to a connector to provide one or more discrete high speed lines.


  • Long insertion life
  • Reliable signal integrity
  • DC stability
  • Quick connect and disconnect


  • Alternative energy
  • Commercial aviation
  • Defense
  • Electric vehicles
  • Industrial
  • Medical
  • Oil & Gas
  • Rail
  • Space
  • Test & Measurement