Gas Discharge Tubes
GTCX28-XXXM-R20 Series
Littelfuse Circuit Protection 8mm 2Pole GDTs
(ceramic gas discharge tubes), are commonly used
to help protect sensitive telecom equipment such as
communication lines, signal lines and data
transmission lines from damage caused by transient
surge voltages that typically result from lightning
strikes and equipment switching operations.
Littelfuse Circuit Protection GDTs offer a high level of
surge protection, low capacitance and a broad array
of breakover voltage levels, making them suitable for
applications such as MDF (Main Distribution Frame)
modules, high data-rate telecom applications (e.g.
ADSL, VDSL), and surge protection on power lines.
Littelfuse Circuit Protection GDTs, can help
equipment meet the most stringent regulatory
standards.
Benefits:
Features:
Helps provide overvoltage fault protection against
high energy surges
2Pole, 8mm devices
Suitable for high-frequency applications
Broad voltage range from 75V-350V
Various form factors: surface mount, axial leads, no
leads
Low capacitance and insertion loss
UL 497B recognized
RoHS compliant
Devices tested per ITU K.12 recommendations
Non-radioactive materials
Applications
: Telecommunications
• Industrial and consumer electronics, such as
- MDF modules, xDSL equipment, RF system
- Surge protectors
protection, antenna, base station
- Alarm system
© 2016 Littelfuse,Inc.
Telecommunications
Specifications are subject to change without notice
Revised July26,2016.
All rights reserved.
MDF modules,
xDSL equipment, RF sytem 1
Protection, antenna, pase station
Document:
• Industrial and consumer electronics, such
as SCD27622
Status: Released
Rev: D Date: JULY 26, 2016
Gas Discharge Tubes
GTCX26-XXXM-R05 Series
GTCX28-XXXM-R20 Series
Device Voltage Ratings and Part Marking
Part Number
Impulse
Sparkover
DC Sparkover
DC Holdover
Voltage
On-State Voltage
@100V/s
±20% Tolerance
(V)
@100 V/µs (V)
@1000 V/µs (V)
GTCX28-750M-R20
75
450
550
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