The Alpha Technology MS Series Multipin Vacuum Feedthrough carries multiple signal, power and thermocouple lines through a single vacuum port using a MIL-C-5015 compatible connector pattern. Built with nickel or molybdenum pins sealed into a ceramic insulator, it keeps contact integrity while preserving UHV hermeticity to 1×10⁻¹⁰ mbar·l/s.
Multipin Vacuum Feedthrough — Key Specifications
| Voltage Rating | 700 V DC |
|---|---|
| Max Current | 3 – 48 A |
| Vacuum Leak Rate | UHV < 1×10⁻¹⁰ mbar·l/s |
| Number of Pins | 4 (2 to 35 pin configurations available) |
| Flange | CF / KF |
| Atmosphere Side | MIL-C-5015 (MS) |
| Temperature Range | -150 °C to 450 °C |
Why It Meets UHV Requirements
- MIL-C-5015 MS connector pattern for drop-in compatibility with standard industrial cables
- Nickel, molybdenum or copper pins; thermocouple pin options available
- Ceramic-to-metal hermetic seal — no organic potting compounds
- Leak tested to < 1×10⁻¹⁰ mbar·l/s, bakeable to 450 °C
- 2, 4, 6, 10, 20 and 35-pin configurations across the MS series
Typical Applications
- Mass spectrometers and surface-analysis instruments
- Vacuum gauges and process instrumentation
- Semiconductor process chambers
- Thin-film deposition and coating systems
Custom & OEM Options
Every Alpha Technology feedthrough is manufactured to order. Voltage, current, pin layout, conductor material, flange and mounting geometry can all be customized. Contact us with your drawing or specification and our engineers will provide a free design review.
FAQ
What pin counts are available?
The MS series covers 2, 4, 6, 10, 20 and 35 pins. If you need a different layout, we can design a custom pin-out to your specification.
Can the multipin feedthrough carry thermocouple signals?
Yes, thermocouple pin options are available within the MS pattern, letting you mix measurement and power/signal lines in one feedthrough.
What is the price?
Pricing depends on pin count, flange type and pin material. Contact us with your required pin layout for a custom quotation.
Related Products
See our full range of vacuum feedthroughs, explore edge welded bellows for motion transmission into vacuum, or read the bellows design & selection guide.
Ready to specify your feedthrough? Request a quote — our engineers respond within one business day.
