<h2>High Voltage Vacuum Feedthroughs and Components</h2><p>- 5kV, 10kV, 20kV, from 30 Amps to 150 AMPs </p><p><strong>High Voltage </strong>feedthroughs are <a href="/what-hermetic-feedthrough">hermetically-sealed</a> and comprised of 304 stainless steel, OFE Copper, Vacuum Grade Brazed Alloy, and high Purity Alumina Ceramic. <br><br>We offer four power ratings (up to 20,000 volts and 150 amps) that are rated from -200°C up to 250°C. All have a vacuum range of 1x10-10 Torr (<strong>Ultrahigh</strong> <strong>UHV</strong> Vacuum) and 1x10-8 Torr (<strong>High Vacuum HV</strong>). Our other high power feedthrough components consist of push-on and in-line connectors, vacuum polyimide cables that are for <strong>in-vacuum</strong> use as well as air service cables.</p><table style="width:100%;" border="1" cellpadding="1" cellspacing="1" dir="ltr" id="High Power Specifications" summary="High Power / Voltage Feedthrough Specifications"><caption>High Power / Voltage 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"> </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>5KVDC, 10KVDC, and 20KVDC<br>30 Amps and 150 Amps</td></tr></tbody></table><table style="width:100%;" border="1" cellpadding="1" cellspacing="1" id="High Power / Voltage Material Specifications" summary="High Power / Voltage Feedthrough Material Specifications"><caption>High Power / Voltage 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"> </th></tr></thead><tbody><tr><td><ul><li>Shell</li><li>Conductor</li><li>Seal</li><li>Insulator</li><li>Connector, Air / Vacuum</li></ul></td><td><p style="text-align:right;"><br>304 Stainless Steel<br>OFE Copper<br>Vacuum Grade Braze Alloy<br>High Purity Alumina Ceramic<br>Silicone / Au-Plated Be-Cu</p></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"> </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"> </th></tr></thead><tbody><tr><td><ul><li>Feedthrough</li><li>Flange Mount, Conflat</li><li>Flange Mount, ISO</li><li>Thermal Gradient</li></ul></td><td><p style="text-align:right;"><br>250ºC<br>450ºC<br>150ºC<br>25ºC / Minute Maximum</p></td></tr></tbody></table><p>All four styles are offered on Conflat compatible CF metal seal, ISO-KF elastomer seal flanges, and custom flanges (upon request).</p><p>High purity Alumina ceramic insulators (ceramic feedthrough) provide electrical isolation. Pure copper conductors (OFE) provide maximum current capacity. The high purity Alumina ceramic is bonded to metals in a vacuum furnace environment using semi-precious high temperature vacuum grade brazed alloys.</p>
High Voltage / Power Feedthroughs
Accu-Glass Products’ High Power hermetically-sealed feedthroughs are available in three power ratings up to 20,000 volts and to 30 amperes for use in high and ultrahigh vacuum environments. Feedthroughs for 5, 10, and 20 kVDC, and 30A are offered.
All three power versions are offered on Conflat® compatible CF metal seal and ISO NW KF elastomer seal flanges. High purity Alumina ceramic insulators provide electrical isolation, while OFE copper conductors offer maximum current carrying capacity. The high purity Alumina ceramic is bonded and sealed to low expansion metals in a vacuum furnace environment using precious and semi-precious high temperature vacuum tube grade braze alloys. For custom feedthrough solutions or for ratings other than these standard products, please contact the factory for pricing and information.
Molded air-side silicone rubber boot-like cable connectors provide reliable and environmentally sealed high voltage connections. Vacuum compatible BeCu (Beryllium-Copper) push-on or in-line contacts, and Kapton® insulated wiring are available for in-vacuum connectivity
Features
- High Voltage to 20kVDC
- High Current to 30 Amps
- High temperature rated to 250°C
- UHV compatible construction
- Conflat® and ISO compatible mounts
- Kapton® insulated vacuum cables
- PEEK connector with locking screws
- Air service cables / Boot Connectors
- Custom solutions on request
Specifications
| Electrical | |
| Voltage 1, Maximum | 5, 10, 20 kVDC |
| Current 2, Maximum | 30 A |
| Material | |
| Shell, Stainless Steel | 304 |
| Pin, Conductor | Cu, OFE |
| Ceramic Insulator | Alumina |
| Connector, Air | Silicone |
| Connector, UHV (Au Plated) | BeCu |
| Vacuum Range | |
| UHV, Ultrahigh vacuum | 1x10E-10 Torr |
| HV, High vacuum | 1x10E-8 Torr |
| Temperature Range 2 | |
| Feedthrough | 250°C |
| Flange, Conflat® | 450°C |
| Flange, ISO | 150°C |
| Connector / Cable, Air | 125°C |
| Connector / Cable, UHV PEEK | 250°C |
| Thermal Gradient, Maximum | 25°C/minute |
| Notes |
- Electrical ratings are maximum test values, with vacuum side at ≤ 1x10-4 Torr. Feedthroughs are designed for high power applications.
- Overall assembly ratings must be adjusted to that of its lowest rated component. For cryogenic service, the lowest recommended temperature is -200°C
- Unless designated a 'kit,' connectors and cable assemblies are not included with feedthrough and must be purchased separately.