Finding the right electrical connector.

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SUMMARY

The discussion centers on sourcing an 8-contact multi-pin electrical connector suitable for a scanning tunneling microscope operating in a vacuum of 50mtorr and at 10.5V, with a budget of $250. The user expresses dissatisfaction with Fischer connectors and seeks alternatives that provide better pricing and customer support. Suggestions include exploring simpler feed-through options or coax connectors that may meet the requirements without exceeding the budget.

PREREQUISITES
  • Understanding of electrical connector specifications
  • Familiarity with vacuum systems and their requirements
  • Knowledge of temperature control in electronic devices
  • Experience with sourcing electronic components
NEXT STEPS
  • Research alternative manufacturers of multi-pin connectors for vacuum applications
  • Investigate simple feed-through solutions for vacuum chambers
  • Explore coaxial connector options that meet the specified voltage and pressure requirements
  • Learn about the specifications and performance of connectors in high-vacuum environments
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Electrical engineers, laboratory technicians, and anyone involved in the design or maintenance of vacuum systems and electronic instrumentation.

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Hey guys, I've been trying to find the right electrical connectors for my labs scanning tunneling microscope. Problem I've been having is that the connectors I find are either too pricey or not to the right specs. I need a mated pair, 8-contact multi-pin for mounting on a flange, that will operate in vacuum of 50mtorr, for a temperature-controller operating at 10.5V, all for under 250$ max, other specs are irrelevant. The current connector I have are fischer and I will tell you that I am NOT interested in getting another from them. I've looked at a few companies but I've gotten really tired of browsing through catalogs for hours, getting put on hold, getting inadequate customer support, and then waiting half a week for price quotes that are to high. If anyone knows of a good company for a mid quality connector like this please let me know.
 
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If you can't afford the connector then how about using a different way through into the vacuum chamber? Are there simple simple feed-thru's that can handle the pressure difference? Your connector could be working at atmospheric pressure. Or perhaps there are simple coax connectors or connectors with fewer than 8 contacts.
 

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