HomeCoaxialSubminiature Coax-DCF Feedthroughs

Subminiature-D Coaxial CF Feedthrough Flanges

Coax-D™ Feedthroughs and Accessories

Coaxial hermetic Subminiature-D feedthroughs with coaxial pin and shield are available in 1, 3 and 5 pin configurations mounted in standard 9D, 15D, and 25D shell sizes, respectively.

The coaxial shield floats with respect to ground providing a secondary electrical path.  The single pin coax-D feedthrough also includes four non-shielded instrumentation pins for added connection capability.  Gold plated pins and shields are in a straight through pin-to-pin design, are hermetically sealed and electrically insulated in a stainless steel shell using the latest in glass-ceramic bonding technology.

Ultrahigh vacuum cable assemblies with PEEK (polyetheretherketone) connectors and Kapton® insulated 50-Ohm coaxial cables are available to meet the demands of UHV environments.  The connection accessories must be purchased separately.  Vacuum side cable assemblies, individual connectors and other accessories can be found from the links below.  Custom sub-D coaxial feedthrough products are available on request.

Glow Discharge Graph

Features

  • 1, 3 and 5 Subminiature-D interface
  • Floating Shield Design
  • Kapton® insulated 50-Ohm cable
  • High temperature rated to 250°C
  • UHV compatible construction
  • Conflat® and ISO compatible mounts
  • PEEK Connector with Locking Screws
  • Air service cables / connectors
  • Custom solutions on request
     

Specifications

Electrical 
Voltage 1, Maximum500 VDC
Current 2, Maximum5 A
Material 
Shell, Stainless Steel304
Coaxial ShieldNi-Fe
Pins, Au platedNi-Fe
Seal / InsulatorGlass-Ceramic
Connectors, Vacuum 3 
Subminiature-DPEEK
BNCPEEK, Brass
SMAPEEK, Brass
User-EndPEEK, BeCu
Connector, AirComposite
Cable InsulationKapton®
Vacuum Range 4 
UHV, Ultrahigh vacuum1x10E-10 Torr
HV, High vacuum1x10E-8 Torr
Temperature Range 
Feedthrough250°C
Flange, Conflat®450°C
Flange, ISO150°C
Connector / Cable, Air80°C
Connector / Cable, UHV PEEK250°C
Thermal Gradient, Maximum25°C/minute
Notes 
  1. Electrical ratings are maximum test values, with feedthrough's vacuum side at ≤ 1x10E-4 Torr. Feedthroughs are intended for instrumentation applications carrying low level signal voltage and current.
  2. For proper heat dissipation, a maximum of 20% of the pins on a feedthrough may carry the maximum pin current at any given time.
  3. PEEK is a polyether ether ketone thermoplastic.
  4. Overall assembly ratings must be adjusted to that of its lowest rated component.