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Subminiature-C, the latest addition to a comprehensive line of glass-to-metal, hermetically sealed instrumentation feedthroughs. This is a circular geometry 9 pin feedthrough designed for applications where space is at a premium or where conventional Subminiature Type-D connections will not fit. Its circular geometry allows the installation of this product into very small vacuum flanges including the popular DN16CF and KF16 flanges. 9 gold plated pins are hermetically sealed and electrically insulated in a stainless steel shell using the latest in glass-ceramic bonding technology.

Each kit is supplied with both an air and vacuum-side cable assembly including connectors. Subminiature-C air and vacuum-side connectors are fitted with captured stainless steel socket head screws which provide a means of securely locking them to their mating feedthroughs. All in-vacuum connector screws are vented where required. The feedthroughs mating-screw boss doubles as a polarising key. Air to vacuum pin positions are identified with a permanent surface indentation to facilitate the pin assignment operation.

  • 9, 23, 37 and 60 pin instrumentation feedthroughs
  • UHV Compatible construction
  • Conflat® and KF mounting flanges
  • High temperature rated to 250°C maximum
  • Leak tight to 2 x 10-10 std. cc/sec of helium
  • Air and vacuum connectors available

HV KF Flange with 9 pins

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Voltage/Current ratings1
9 pin 1000VDC/10A (60A max.)
23 pin 1000VDC/7A (105A max.)
37 pin 1000VDC/7A (170A max.)
60 pin 1000VDC/7A (275A max.)
Shell Stainless steel
Pins BeCu gold plated
Seal/Insulation Ceramic
Air Delrin®3
Vacuum PEEK®2
Vacuum range
UHV (CF) 1x10-10 mbar
HV (KF) 1x10-8 mbar
Temperature range 4
Feedthrough-CF 250°C
Feedthrough-KF 200°C
Connector-Air 80°C
Connector-Vacuum 250°C
Thermal gradient 25°C per minute max.

Contains air and vacuum-side connectors with 96inch 2438mm and 19inch 482mm cable length respectively.
This is the stand-alone feedthrough and does not include air or vacuum-side connectors.
Note 23, 37 and 60 pin vacuum connectors include a set of crimp connectors – 9 pin do not.

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