Product category:
Circuit Protection Devices
News Release from: Radiall | Subject: GDT range
Edited by the Electronicstalk Editorial
Team on 03 April 2002
Gas capsule protects coax systems from
surges
Identical in appearance to N or 7/16 format inline coaxial adapters, Radiall's new GDT range of surge protectors incorporate a field replaceable gas capsule between the inner and outer conductors.
Identical in appearance to inline coaxial adapters using industry standard N or 7/16 formats, Radiall's new GDT range of surge protectors incorporate a field replaceable gas capsule placed between the inner and outer conductors Unlike single-band quarter-wave protectors (QWS), the gas tube surge arresters can be used in broadband applications as their operating frequency range is DC to 2.5GHz
This article was originally published on Electronicstalk on 2 Mar 2001 at 8.00am (UK)
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Ultraminiature coaxial connectors
The IMP Series is the latest addition to the range of surface-mount coaxial connectors from Radiall.
They also work as voltage filters.
During normal operation, the gas inside the tube remains inert and signals are able to pass through the component to the equipment.
When lightning strikes, the voltage appearing across the gas capsule increases.
When it reaches a predetermined level (specifiable by the customer) the gas ionises and becomes conductive.
As a result, current is diverted through the capsule to the ground, away from the protected equipment.
Once the voltage reduces to below the predetermined level, the gas capsule reverts to its initial state.
The life of the capsule depends on the number and severity of the strikes.
These new gas discharge protectors, which are available in a very wide range of styles, are supplied without the gas capsule - the user can specify from a broad selection of voltage levels to suit the application.
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