<h2>Subminiature-C (Sub-C, Type-C) - Ultrahigh (UHV), High Vacuum (HV), In-Vacuum</h2><p>Accu-Glass Products <strong>Subminiature-C</strong>&nbsp;multi-pin <a href="/what-hermetic-feedthrough">hermetic feedthroughs</a> (also known as <strong>Sub-C</strong> or<strong> Type-C</strong>)&nbsp;are designed for applications where space is limited, or where Subminiature-D (Sub D)&nbsp;connections will not fit. &nbsp;Its compact design allows installation into a 1.33 inch CF metal seal and ISO-NW16KF elastomer seal vacuum flanges.</p><p>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.</p><p>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<font size="2"><sup>®</sup></font> insulated cable assemblies fitted with PEEK connectors are available to meet the rigorous demands of <strong>(UHV)</strong> <strong>ultrahigh vacuum </strong>as well as<strong> (HV) High Vacuum </strong>environments.&nbsp; <strong>In-vacuum</strong> connector screws are vented where required and the feedthrough's threaded-boss doubles as a connection polarizing key. Air to vacuum pin position is identified with a permanent surface mark, which clearly locates pin assignments. 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.</p><table style="width:100%;" border="1" cellpadding="1" cellspacing="1" dir="ltr" summary="Subminiature-C Feedthrough Specifications"><caption>Subminiature-C Feedthrough Specifications</caption><thead><tr><th style="background-color:rgb(221, 221, 221);text-align:left;" scope="col"><strong>Electrical</strong></th><th style="background-color:rgb(221, 221, 221);" scope="col">&nbsp;</th></tr></thead><tbody><tr><td><ul><li>Voltage, Maximum</li><li>Current, Per Pin Maximum @ 20ºC</li></ul></td><td style="text-align:right;"><br>500 VDC<br>5&nbsp;Amps*</td></tr><tr><td><p><span style="font-size:10px;">*&nbsp; For proper heat dissipation, a maximum of 20% of the pins on a feedthrough may carry the maximum pin current at any given time.</span></p><p><span style="font-size:10px;">* ​​​​​​Electrical ratings are maximum test values, with feedthrough’s vacuum side at ≤ 1x10<sup>-4 </sup>Torr. Feedthroughs are intended for instrumentation applications carrying low level signal voltage and current.</span></p></td><td style="text-align:right;">&nbsp;</td></tr><tr><td>&nbsp;</td><td style="text-align:right;">&nbsp;</td></tr></tbody></table><table style="width:100%;" border="1" cellpadding="1" cellspacing="1" summary="Subminiature-C Feedthrough Material Specifications"><caption>Subminiature-C Feedthrough Material Specifications</caption><thead><tr><th style="background-color:rgb(221, 221, 221);text-align:left;" scope="col"><strong>Material</strong></th><th style="background-color:rgb(221, 221, 221);" scope="col">&nbsp;</th></tr></thead><tbody><tr><td><ul><li>Shell</li><li>Pins</li><li>Seal / Insulator</li><li>Connector, Air</li><li>Connector, Vacuum</li><li>Connector, Vacuum, High Temperature</li></ul></td><td><p style="text-align:right;"><br>304 Stainless Steel<br>Au plated, Ni-Fe alloy<br>Glass-Ceramic<br>Delrin®<br>Peek*<br>Macor® Cermic</p></td></tr><tr><td><span style="font-size:10px;">*&nbsp; Peek is a Polyether-ether-ketone thermoplastic.</span></td><td>&nbsp;</td></tr><tr><td>&nbsp;</td><td>&nbsp;</td></tr></tbody></table><table style="width:100%;" border="1" cellpadding="1" cellspacing="1" id="Feedthrough Vacuum Range" summary="Feedthrough Vacuum Range Specifications"><caption>Feedthrough Vacuum Range Specifications</caption><thead><tr><th style="background-color:rgb(221, 221, 221);text-align:left;" scope="col"><span><strong>Vacuum Range</strong></span></th><th style="background-color:rgb(221, 221, 221);" scope="col">&nbsp;</th></tr></thead><tbody><tr><td><ul><li>UHV, Ultrahigh vacuum</li><li>HV, High vacuum</li></ul></td><td style="text-align:right;"><br>1x10<sup>-10</sup> Torr<br>1x10<sup>-8</sup> Torr</td></tr></tbody></table><table style="width:100%;" border="1" cellpadding="1" cellspacing="1" id="Feedthrough Temp Range" summary="Feedthrough Temperature Range Specifications"><caption>Feedthrough Temperature Range Specifications</caption><thead><tr><th style="background-color:rgb(221, 221, 221);text-align:left;" scope="col"><span><strong>Temperature Range</strong></span></th><th style="background-color:rgb(221, 221, 221);" scope="col">&nbsp;</th></tr></thead><tbody><tr><td><ul><li>Feedthrough</li><li>Flange Mount, Conflat</li><li>Flange Mount, ISO</li><li>Connector / Cable, Air</li><li>Connector / Cable, Vacuum</li><li>Connector, Ceramic</li><li>Thermal Gradient</li></ul></td><td><p style="text-align:right;"><br>-200ºC to 250ºC<br>-200ºC to 450ºC<br>-26ºC to 150ºC<br>80ºC<br>250ºC<br>400ºC<br>25ºC / Minute Maximum</p></td></tr><tr><td><span style="font-size:10px;">* Overall assembly ratings must be adjusted to that of the lowest rated component.</span></td><td>&nbsp;</td></tr></tbody></table><p>&nbsp;</p><p>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<sup>®</sup> insulated cable assemblies fitted with PEEK connectors are available to meet the rigorous demands of ultrahigh vacuum environments. In-vacuum connector screws are vented where required and the feedthrough's threaded-boss doubles as a connection polarizing key. Air to vacuum pin position is identified with a permanent surface mark, which clearly locates pin assignments. <strong>Subminiature-C</strong> feedthroughs and cables are sold individually or as kits, where each kit contains a feedthrough and both vacuum and air side cable assemblies.</p>

Section (Layout)
Left Column Content
Callout Image
Subminiature-C Connectivity
Image Callout
Air-service female cable assembly, 100021, Delrin® connector and nine conductor cable
104
198
UHV Feedthrough, 100010, Conflat® compatible Flange
252
171
UHV female cable assembly, 100040, PEEK connector and Kapton® insulated wire
368
241
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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.

Right Column Content
Text

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.