Coaxial feedthroughs
are designed with two concentric conductor paths: a central cylindrical
conductor is surrounded by a metal tube or shield path. Inner and outer
conductors are separated and isolated by alumina-ceramics. VACOM offers
coaxial feedthroughs in the standard specifications subminiature (SMA),
miniature (BNC, MHV, SHV) and the medium-sized (N, NH).
Coaxial
feedthroughs can be used universally. The choice contains feedthroughs for
voltages from 500 V to 20 kV.
SMA (Subminiature Type A)
feedthroughs offer a threaded interface in a subminiature size. Matched
impedance designs are also available and are ideally suited for high frequency
signal transmission above 10 GHz. Standard SMA feedthroughs are available
as single or double ended units.
Type N
feedthroughs are the most frequently used medium-sized connectors for
voltages up to 1.5 kV. The threaded coupling enables low noise and increased
resistance to shock and vibration. Matched impedance designs are suitable for
high frequency signal transmission above 6 GHz. Type N feedthroughs are
available single ended with atmosphere side connector or double ended with
atmosphere and vacuum side plugs.
Type HN
series feedthroughs comply with type N feedthroughs but have been designed
for higher voltages (up to 7 kV). These designs with matched impedance are
ideally suited for high frequency signal transmission or fast rise time pulses for
data transmission.
BNC
feedthroughs are the most popular miniature connectors and can transmit
voltages up to 500 V DC. BNC feedthroughs are equipped with quick connect /
disconnect bayonet couplings. Matched impedance designs for the
transmission of high frequency signals are also available. BNC feedthroughs
are offered as single or double ended units with grounded or floating shield.
MHV (Miniature High Voltage)
Feedthroughs - also characterized as high voltage BNC feedthroughs - are
designed for high voltage applications of BNC feedthroughs between 500 V and
5 kV DC. MHV feedthroughs are also offered as single or double ended units
with grounded or floating shield.
SHV (Safe High Voltage)
feedthroughs have a higher level of interface characteristics than MHV
feedthroughs, including their individual identification. The outer contact ground
connection is maintained through the centre contact retaining ring. The centre
contact is recessed to prevent shock hazard during disconnection. Different
designs are available for voltages from 5 kV to as 20 kV DC.
