Sub-C Feedthroughs Drawing

Subminiature-C Feedthrough on CF Flanges

Subminiature-C (Sub-C) multipin hermetic feedthroughs are designed for applications where space is limited inside your vacuum chamber.

This compact and unique 9-pin design allows installation into a 1.33-inch CF flange or two feedthroughs on a 2.75-inch conflat CF flange.  Nine gold-plated pins are arranged in a straight through pin-to-pin design and are hermetically sealed and electrically insulated in a stainless steel shell using the latest in glass-ceramic bonding technology.

Subminiature-C Feedthrough Specifications
Electrical 
  • Voltage, Maximum
  • Current, Per Pin Maximum @ 20ºC

500 VDC 
5 Amps*
*  For proper heat dissipation, a maximum of 20% of the pins on a feedthrough may carry the maximum pin current at any given time. 
  
Subminiature-C Feedthrough Material Specifications
Material 
  • Shell
  • Pins
  • Seal / Insulator
  • Connector, Air
  • Connector, Vacuum
  • Connector, Vacuum, High Temperature


304 Stainless Steel 
Au plated, Ni-Fe alloy 
Glass-Ceramic 
Delrin® 
Peek* 
Macor® Cermic

*  Peek is a Polyether-ether-ketone thermoplastic. 
  
Feedthrough Vacuum Range Specifications
Vacuum Range 
  • UHV, Ultrahigh vacuum

1x10-10 Torr
Feedthrough Temperature Range Specifications
Temperature Range 
  • Feedthrough
  • Flange Mount, Conflat
  • Connector / Cable, Air
  • Connector / Cable, Vacuum
  • Connector, Ceramic
  • Thermal Gradient


-200ºC to 250ºC 
-200ºC to 450ºC 
80ºC 
250ºC 
400ºC 
25ºC / Minute Maximum

* Overall assembly ratings must be adjusted to that of the lowest rated component. 

Sub-C CF Feedthrough Flange "Kit" Features:

  • All of the above features (Feedthrough Flange)
  • In Vacuum cable assembly:
    • PEEK Sub-C connector to Kapton insulated cable assembly, 19-inches long.
  • Air Side cable assembly:
    • Delrine Sub C connector to cable assembly, 96-inches long.

All feedthroughs are mounted on CF Flanges that incorporate the industry standard "captured copper gasket" sealing principle, making it easy to mount to your existing CF Flange ports.

Section (Layout)
Left Column Content
Callout Image
Subminiature-C UHV 9-Pin Kit
Image Callout
Air service female cable assembly, 10021, Delrin® connector and nine conductor cable
94
216
UHV Feedthrough, 100010, Conflat® compatible flange
245
175
UHV Female cable assembly, 100040, PEEK connector and Kapton® insulated wire
360
256
Text

Subminiature-C Ultrahigh Vacuum (UHV)

Accu-Glass Products Subminiature-C multi-pin hermetic feedthroughs (also known as Sub-C or Type-C) are designed for applications where space is limited, or where Subminiature-D (Sub D) connections will not fit. Its compact design allows installation into a 1.33 inch CF metal seal vacuum flanges, or two (2) Subminiature-C 9-Pin feedthroughs on a 2.75 inch CF flange.

Nine gold-plated pins are arranged in a straight through pin-to-pin design and are hermetically sealed and electrically insulated in a stainless steel shell using the latest in glass-ceramic bonding technology.

Air and vacuum side connectors are fitted with a captured stainless steel socket-head screw providing a means of securely locking connectors to a mating feedthrough. On the vacuum side, Kapton® insulated cable assemblies fitted with PEEK connectors are available to meet the rigorous demands of (UHV) ultrahigh vacuum environments.  In-vacuum connector screws are vented and the feedthrough's threaded-boss doubles as a connection polarizing key. Pin assignment is identified with a permanent surface mark, which clearly locates the Pin-1 position. UHV Subminiature-C feedthroughs and cables are sold individually or as kits, where each kit contains a feedthrough and both vacuum and air side cable assemblies.

Warning: Please review 'Glow Discharge Graph' and how voltage rating is affected by pressure change.

Right Column Content
Text

Features

  • Subminiature-C 9-Pin Interface
  • High temperature rated to 250°C
  • UHV compatible construction
  • Conflat® compatible mounts
  • Kapton® Insulated Vacuum Cables
  • PEEK or Macor® Connectors with Locking Screws
  • Air Service Cables / Connectors
  • Custom Solutions on Request

Specifications

Electrical 1, 2 
Voltage500VDC
Current5A
Material 
Shell304 Stainless Steel
PinsAu Plated, Ni-Fe
Seal / InsulatorGlass-Ceramic
Connector, AirDelrin®
Connector, Vacuum3PEEK
Connector, High TemperatureMacor® Ceramic
Vacuum Range 4 
UHV, Ultrahigh Vacuum1x10-10 Torr
Temperature Range 5 
Feedthrough-200° to 250°C
CF Flange-200° to 450°C
Connector, Delrin®80°C
Connector, PEEK250°C
Connector, Macor® Ceramic400°C
Thermal Gradient25°C / Minute
Notes 
  1. Electrical ratings are maximum test values, with feedthrough's vacuum side at ≤ 1x10-4 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. Leak tested to 5x10-10 Standard cc/sec of He.
  5. Overall assembly ratings must be adjusted to that of its lowest rated component. For cryogenic service, the lowest recommended temperature is -200°C
  6. Unless designated a 'kit,' connectors and cable assemblies are not included with feedthrough and must be purchased separately.
Subscribe to CF Feedthroughs