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Subminiature-C Feedthroughs and Components

Subminiature-C (Sub-C, Type-C) - Ultrahigh (UHV), High Vacuum (HV), In-Vacuum

Accu-Glass Products Sub­min­iature-C™ multipin hermetic feedthroughs (also known as Sub-C or Type-C multipin feedthroughs) are designed for applications where space is limited or where Sub­miniature-D (Sub-D) connections will not fit. This compact and unique 9-pin design allows installation into 1.33-inch CF metal seal and ISO NW16 KF elastomer seal vacuum flanges. 

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

Sub­min­iature-C™ feedthroughs and cables are sold individually or as kits, where each kit contains a feedthrough with both vacuum and air side cable assemblies. Air and vacuum side connectors are fitted with captured stainless steel socket head screws that provide a secure means for locking them to their mating feedthroughs. 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 locking screws are vented and where the feedthrough’s screw-boss also functions as a connection polarizing key. The air to vacuum 'pin-one' position is identified with a permanent surface mark for clear and simple pin assignment.

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

Features

  • Subminiature-C™ 9-Pin Interface
  • High temperature rated to 250°C
  • UHV compatible construction
  • Conflat® and ISO NW 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 
Voltage500 VDC
Current5 A
Material 
Shell304 Stainless Steel
PinsAu Plated, Ni-Fe
Seal / InsulatorGlass-Ceramic
Connector, AirDelrin®
Connector, Vacuum3PEEK
Connector, Hi-TempMacor® Ceramic
Vacuum Range 4 
UHV, Ultrahigh Vacuum1x10-10 Torr
HV, High Vacuum1x10-8 Torr
Temperature Range 5 
Feedthrough-200° to 250°C
Flange, CF-200° to 450°C
Flange, ISO NW-26° to 150°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.