UN3E8-75HM Datasheet, PDF (1/5 Pages) UN Semiconducctor INC – 3-Electrode Gas Discharge Tube (GDT)

3-Electrode Gas Discharge Tube (GDT)
UN3E8 Series
Description
Gas discharge Tubes (GDT) are classical components for
protecting the installations of the telecommunications. It is
essential that IT and telecommunications systems -with their
high-grade but sensitive electronic circuits - be protected by
arresters. They are thus fitted at the input of the power supply
system together with varistors and at the connection points to
telecommunication lines. They have become equally indispensable
for protecting base stations in mobile telephone systems as well as
extensive cable television (CATV) networks with their repeaters
and distribution systems.
UN3E8-XXXHM
UN3E8-XXXHP
UN3E8-XXXHMF
UN3E8-XXXH
These protective components are also indispensable in other
sectors, In AC power transmission systems, they are often used
with current-limiting varistors, In customer premises equipment
such as DSL modems, WLAN routers, TV sets and cable modems
In air-conditioning equipment, the integral black-box concept offers
graduated protection by combining arresters with varistors, PTC,
diodes and inductor.
Schematic Symbol
a = Tip
a
b _{b = Ring}
e = Ground
(center electrode)
Features
u Non-Radioactive
u RoHS compliant
u Low insertion loss
u Excellent response to fast rising transients
u Ultra low capacitance
u 20KA surge capability tested with 8/20μs
pulse as defined by IEC 61000-4-5
u Available with thermal failsafe option (add ‘F’ suffix to part
number)
Applications
u Communication equipment
u CATV equipment
u Test equipment
u Data lines
u Power supplies
u Telecom SLIC protection
u Broadband equipment
u ADSL equipment, including ADSL2+
u XDSL equipment
u Satellite and CATV equipment
u Consumer electronics
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E341061
Product Characteristics
Materials
Product Marking
Glow to Arc
Transition Current
Glow Voltage
Storage and
Operational
Temperature
Weight
Climatic category
(IEC 60068-1)
Nickel-plated with Tinplated wires
UNION
XXXH
XXX -Nominal voltage
H -20KA
~1 Amps
~70 Volts
-40 to +90°C
UN3E8-XXXHM
UN3E8-XXXHMF
UN3E8-XXXHP
UN3E8-XXXH
40/ 90/ 21
~2.0g
~2.3g
~2.1g
~1.8g
SOCAY Electronics Co., Ltd.
Revision March 6, 2014
1/5
www.socay.com
@SOCAY Electronics Co., Ltd. 2014
Specifications are subject to change without notice.
Please refer to www.socay.com for current information.