Subminiature-D

<h2>Subminiature-D or Sub-D</h2><p>UHV 9, 15, 25, and 50-pin <strong>Subminiature-D&nbsp;(Sub-D) </strong><a href="https://www.accuglassproducts.com/what-hermetic-feedthrough">hermetic feedthroughs</a> (vacuum feedthrough) are constructed with multi-pin arrangements per Mil-DTL-24308 (formerly Mil-C-24308) specification. &nbsp; All pins are gold-plated and arranged in a straight-through pin-to-pin design. &nbsp;&nbsp;Hermetically sealed and electrically insulated into a stainless steel shell using the latest in glass-ceramic bonding technology (ceramic feedthrough).</p><h2>Multi-pin Sub-D Vacuum Feedthrough Connectors and Assemblies</h2><p>Ultrahigh vacuum compatible Sub-D wire assemblies are fitted with PEEK (polyether-etherketone) polymer connectors and Kapton^® insulated ribbon cable to meet the rigorous demands of ultrahigh vacuum environments. &nbsp;Each subminiature-D vacuum connector includes two (2) captured stainless steel socket head screws that securely lock a connector to its mating electrical feedthrough. &nbsp;To eliminate virtual leaks, in-vacuum captured screws are vented where required.</p><h2>Introducing the HV Bulkhead-D multi-pin feedthrough Product Line</h2><p>AGP's HV Bulkhead-D hermetic electrical feedthrough was developed for high-vacuum flat-chamber-wall applications where conventional ISO NW KF or LF flanges are either not available, or just not practical. &nbsp; Our universal 2x3.5 inch rectangular flange, the Bulkhead-D flange, accommodates standard 9, 15, 25, or 50-pin subminiature-D electrical feedthroughs, and shares the same gasket and fastening accessories... providing simple and convenient interchangeability.</p><table style="width:100%;" border="1" cellpadding="1" cellspacing="1" dir="ltr" summary="Subminiature-D Feedthrough Specifications"><caption>Subminiature-D 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><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></td><td style="text-align:right;">&nbsp;</td></tr></tbody></table><table style="width:100%;" border="1" cellpadding="1" cellspacing="1" summary="Subminiature-D Feedthrough Material Specifications"><caption>Subminiature-D 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® Ceramic</p></td></tr><tr><td><span style="font-size:10px;">*&nbsp; Peek is a Polyether-ether-ketone thermoplastic.</span></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^-10 Torr<br>1x10^-8 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>Subminiature-D, also referred to as D-Sub or Sub-D multi-pin electrical feedthrough assemblies with up to 250 pin configurations are routinely fabricated. Custom solutions with over 1,000 pins have also been engineered and produced.</p><p>Tip: Accu-Glass Products Conflat CF and/or ISO KF/LF Conical Reducers are ideally suited for the expansion of vacuum feedthrough capacity on smaller chamber flanges like fitting a 50-pin 4.50-inch CF flange mounted feedthrough using a 2.75-inch CF chamber port. &nbsp; Click on the following links to access <a href="https://www.accuglassproducts.com/cf-fittings/conical-reducers"><strong… Conical Reducers</strong>,</a> and/or&nbsp;<a href="https://www.accuglassproducts.com/iso-kf-lf-fittings/conical-reducers">… NW Conical Reducers</strong></a>.</p>