GasDischarge Tubes
GTCX28-XXXM-R10 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. Raychem Circuit
Protection GDTs, can help equipment meet the
most stringent regulatory standards.
Benefits:
Features:
Helps provide overvoltage fault protection against
2Pole, 8mm devices
high energy surges
Broad voltage range from 75V-600V
Suitable for high-frequency applications
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
Gas Discharge Tubes Document: SCD27375
Telecommunications Industrial and consumer electronics, such as
Status: Released
2008, 2011, 2014, 2016 Littelfuse Inc. All rights reserved. 1 Rev: D Date: JULY 26, 2016
MDF modules, xDSL equipment, RF sytem
Protection, antenna, pase station
Gas Discharge Tubes
GTCX26-XXXM-R05 Series
GTCX28-XXXM-R10 Series
Device Voltage Ratings and Part Marking
Impulse DC Holdover
Part Number DC Sparkover On-State Voltage
Sparkover Voltage
@100V/s Nominal
Per ITU K.12
20% Tolerance @100 V/s (V) @1000 V/s (V) (@ 1A)
(<150ms)
(V) (V)
(V)
GTCX28-750M-R10 75 450 550 <52 20
GTCX28-900M-R10 90 450 550 <52 20
GTCX28-141M-R10 140 500 600 <80 20
GTCX28-151M-R10 150 500 600 <80 20
GTCX28-201M-R10 200 600 700 <135 20
GTCX28-231M-R10 230 600 700 <135 20
GTCX28-251M-R10 250 600 700 <135 20
GTCX28-261M-R10 260 700 800 <135 20
GTCX28-301M-R10 300 800 900 <150 20
GTCX28-351M-R10 350 900 1000 <150 20
GTCX28-401M-R10 400 900 1000 <150 20
GTCX28-421M-R10 420 900 1000 <150 20
GTCX28-471M-R10 470 1050 1150 <150 20
GTCX28-501M-R10 500 1100 1200 <150 20
GTCX28-551M-R10 550 1300 1400 <150 20
GTCX28-601M-R10 600 1300 1400 <150 20
Note:X options: S: Surface-mount; A: Axial-leaded; N: No-leaded
PartMarking : XX = lot code
Device Surge Rating, Capacitance, Insulation Resistance, UL
Listing
AC
Impulse Discharge
Impulse Insulation UL
Part Number Discharge Current Capacitance
Life Resistance Rating
Current (1sec duration;
10 hits)
8x20s 10x1000s UL497B
@50 Hz @1Mhz* @100V**
10 hits 300 hits #E179610
GTCX28-XXXM-R10 10kA 100A 10Arms <1pF 10,000 (M ) All Devices
* <1.2pF for 75V and 90V devices
** Devices <=90V measured @ 50V; Devices >=500V measured @ 250V
Gas Discharge Tubes Document: SCD27375
Status: Released
2008, 2011, 2014, 2016 Littelfuse Inc. All rights reserved. 2 Rev: D Date: JULY 26, 2016