Gas Discharge Tubes(GDT)
3RB-8 Series
Description
GDT is placed in front of, and in parallel with, sensitive
telecom equipment such as power lines, communication lines,
signal lines and data transmission lines to help protect them
from damage caused by transient surge voltages that may
result from lightning strikes and equipment switching
operations. These devices do not influence the signal in
normal operation. However, in the event of an overvoltage
surge, such as a lightning strike, the GDT switches to a low
impedance state and diverts the energy away from the
sensitive equipment.
Our GDT offer a high level of surge protection, a broad voltage
range, low capacitance, and many form factors including new
surface mount devices, which makes them suitable for
applications such as Main Distribution Frame (MDF) modules,
high data-rate telecom applications (e.g. ADSL, VDSL), and
surge protection on power lines. Their low capacitance also
results in less signal distortion. When used in a coordinated
circuit protection solution with PolySwitch devices, they can
help equipment manufacturers meet stringent safety
regulatory standards.
Electrical symbol
a
a = Tip
b = Ring
e = Ground
(center electrode)
b
e
Features
Applications
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Excellent response to fast rising transients
Stable breakdown voltage
GHz working frequency
8/20μs Impulse current capability: 10KA
Non-Radioactive
Ultra Low capacitance (