re used to create a connection between equipment inside a vacuum chamber and the outside world. They are made from 1 or more conductors that pass through a vacuum flange and are insulated from the flange. The insulating material needs to be able to withstand a pressure of 1 bar from the air-side when the chamber has been evacuated; it is normally glass ceramic.
Electrical Feedthroughs Types
SUB-D FEEDTHROUGHS
Allectra has developed a full range of sub-D feedthroughs and high vacuum and UHV connectors, together with their associated cables. The availability of a full range of sub-D cables and connectors has been very well received by the high vacuum industry. The greatly increased convenience of using an industry standard system has been responsible for the great success of this product. The Allectra range is true UHV standard without any glue or adhesives.
CM FEEDTHROUGHS
This feedthrough design can be used with industry standard air-side connectors. It can be supplied with 6, 12 or 19 pins per feedthrough.
THERMOCOUPLE FEEDTHROUGHS
THERMOCOUPLE FEEDTHROUGHS
Thermocouple feedthroughs have pins made from the corresponding thermocouple pair materials. On the vacuum side the pins terminate with a screw connector. The (+) pole is 25 mm longer than the (-) pole.
THERMOCOUPLE TYPES K, C & N
Combination feedthroughs for heaters that need both power and temperature measurement.
COMBINATION POWER/TC
Combination feedthroughs for heaters that need both power and temperature measurement.
THERMOCOUPLE MS SOCKET TYPES
Up to 10 type K feedthroughs on a single MS type feedthrough.
THERMOCOUPLE CONNECTORS
Air-side and vacuum-side connectors for thermocouple feedthroughs.
THERMOCOUPLE WIRES
Thermocouple wires coated by UHV-compatible insulation materials.
CO-AXIAL FEEDTHROUGHS
Coaxial feedthoughs have a central conductor with an external conducting shield and are normally used to carry signals at high frequencies.
These feedthroughs are often available with an impedance of 50 Ω, for matching to the impedance of coaxial cables to minimise the reflected signal at the cable – feedthrough interface.
They can be supplied with a grounded or floating shield and single or double sided.
BNC & BNC50
Good general purpose solution where a high DC voltage is not required, using industry standard air-side connectors and cables.
SMA
Are used for high-frequency signals. We offer 3 versions, with maximum frequencies ranges from 6.5 GHz to 40 GHz.
SAFE HIGH VOLTAGE SHV
A similar voltage rating to MHV feedthroughs, but with a better air-side connector.
POWER FEEDTHROUGHS
We offer power feedthroughs for voltages up to 60 kV and currents up to 1,000 A using a variety of pin materials.
POWER/LOW VOLTAGE TYPES
Power Feedthroughs on CF, KF flanges with Kovar, SS, Ni and Cu conductors up to 5kV 20Amps
POWER GLOVE
A new design of 5, 10, 20 and 40 kV feedthroughs. Air side cables with 2.4 m length included
1, 2, 4, 6 or 8 Pins option.
HIGH VOLTAGE
Special arrangements on standard or custom flanges are available on request.
