Types of Coaxial Feedthrough
Standard coaxial feedthroughs include BNC, SMA, SMB, MHV, SHV, HN, Triax, Microdot and N type.
Bayonet Naval Connector (BNC) feedthroughs are the most popular RF coaxial feedthroughs and are typically used for connecting radio frequency electronic equipment with miniature to sub-miniature coaxial cable. BNC feedthroughs are commonly used for low power transmission and can transmit voltages up to 500V DC. Whether you require 1 BNC feedthrough or a number of BNC feedthroughs sealed into a flange, we will have the solution.
SMA (Subminiature Type A) feedthroughs are based on a simple coaxial configuration. The SMA feedthrough has a compact design and is ideally suited for high frequency, signal transmission applications above 10 GHz. SMA feedthroughs are most commonly used in applications such as radio communications and microwave systems.
Type N coaxial feedthroughs are commonly used medium size connectors for voltages up to 1.5 Kv. Instrumentation feedthroughs with Type N high power and frequency connectivity are available as single or double ended units. The threaded coupling on the Type N feedthrough enables low noise and increased resistance to shock and vibration.
MHV (Miniature High Voltage) RF Coaxial Feedthroughs are similar to BNC Feedthroughs, with the exception of voltage ratings. MHV feedthroughs are typically used for high voltage applications up to 5000V and 3A, so the MHV feedthroughs are not compatible with BNC Feedthroughs as their electrical ratings are not compatible with one another. MHV feedthroughs are often used in conjunction with low noise 50Ohm instrumentation lines (instrumentation feedthroughs). MHV Feedthroughs are offered as single or double ended with grounding or floated shield.
SHV (Safe High Voltage) Feedthroughs are instrumentation feedthroughs with a higher level of interface characteristics than MHV feedthroughs. Different designs are available from 5Kv TO 20 kV DC. Single and double ended configurations are available and these are also available on CF and KF Flanges.
Type HN instrumentation feedthroughs comply with type N feedthroughs although they have been designed for higher voltages up to 7000V (7Kv). Type HN Feedthroughs are available as flange mounted versions. The Type HN feedthroughs are ideally suited for high frequency signal transmission or for fast rise time pulses for data transmission.
Triaxial feedthroughs are designed for use with cable which has a shielded conductor, which is itself surrounded by a second isolated shield. The conductor and inner shield have insulated paths through the feedthrough while the outer second shield is connected to ground. This is the ideal component for low current or voltage measurements, where high accuracy and lowest disruption of the signal are required. For example, this component can be used for accurate beam positioning for synchrotron type applications. Triaxial Feedthroughs are available as flange mounted versions, so please contact us for your custom requirement.
Our experienced engineering team are ready to assist you with all of your coaxial feedthrough requirements. Whether it is for a prototype, small or large quantity or a coaxial feedthrough mounted into a flange, our team will be happy to assist you.