Data connector

electrical power supplysoldermolybdenum

Overview
Ceramic‑to‑Metal and Glass‑Ceramic‑to‑Metal multipin feedthroughs are hermetic electrical feedthroughs with two or more conductors, designed to transmit instrumentation signals, voltage and/or current into high‑vacuum and ultra‑high‑vacuum environments. Many designs accept plugs on the air side; selected variants allow vacuum‑side plugs.

Applications

• Semiconductor processing equipment
• Analytical test and measurement systems
• Pressure transducers and sensors
• Power generation measurement and control
• Particle accelerators and research facilities
• Industrial and laboratory furnaces
• Energy research installations

Materials and Assembly
Receptacles use high‑purity, vacuum‑compatible materials. Insulators are high‑strength alumina ceramics (94%–99% Al2O3) metalized via refractory‑metal sintering. Metal components include Kovar®, stainless steel, nickel‑iron alloys, cupro‑nickel alloys, molybdenum and Alumel®. Assemblies are brazed with copper, gold‑copper or silver‑copper alloys to ensure hermeticity.

Ceramic‑to‑Metal Sealing Materials:
Ceramic Insulator | Metal | Solder / Braze
94%–99% Al2O3 | Kovar | Copper
| Stainless steel | Gold‑copper
| Nickel‑iron alloy | Silver‑copper
| Cupro‑nickel alloy |
| Molybdenum |

Benefits

• Hermetic sealing with vacuum leak testing to 1×10‑10 mbar·L/s He
• High voltage capability (>12 kV DC)
• High current capability (up to 40 A per pin)
• Operation in high‑vacuum and UHV environments
• Wide temperature range: from cryogenic −250°C to +450°C
• RoHS compliant
• Custom designs available to meet application requirements

Technical Specifications

• Product type: Ceramic‑to‑Metal and Glass‑Ceramic‑to‑Metal multipin feedthroughs (two or more conductors)
• Typical ceramic insulator: 94%–99% Al2O3 (alumina)
• Metals: Kovar®, stainless steel, nickel‑iron alloys, cupro‑nickel alloys, molybdenum, Alumel®
• Brazing alloys: copper, gold‑copper, silver‑copper
• Electrical: >12 kV DC voltage capability; up to 40 A per pin current rating
• Vacuum performance: Suitable for high‑vacuum and ultra‑high‑vacuum; hermetic leak tested to 1×10‑10 mbar·L/s He
• Temperature range: −250°C to +450°C
• Compliance: RoHS compliant
• Typical use: Transmission of instrumentation signals, voltage and current into vacuum systems; accepts plugs on air side (some designs accept vacuum‑side plugs)