Gas Discharge Tubes
GTCX28-XXXM-R05 Series
Raychem Circuit Protection Products 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.
Raychem Circuit Protection Products 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:
•
Helps provide overvoltage fault protection against
high energy surges
•
Suitable for high-frequency applications
Features:
•
2Pole, 8mm devices
•
Broad voltage range from 75V-600V
•
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
- MDF modules, xDSL equipment, RF system
protection, antenna, base station
•
Industrial and consumer electronics, such as
- Surge protectors
- Alarm system
Gas Discharge Tubes
© 2009 Tyco Electronics Corporation. All rights reserved.
1
Document: SCD 27654
Status: Released
Rev: A
Date: March 25, 2009
Gas Discharge Tubes
GTCX26-XXXM-R05 Series
GTCX28-XXXM-R05
Device Voltage Ratings and Part Marking
Part Number
DC Sparkover
@100V/s
±20% Tolerance
(V)
GTCX28-750M-R05
GTCX28-900M-R05
GTCX28-141M-R05
GTCX28-151M-R05
GTCX28-201M-R05
GTCX28-231M-R05
GTCX28-251M-R05
GTCX28-261M-R05
GTCX28-301M-R05
GTCX28-351M-R05
GTCX28-401M-R05
GTCX28-421M-R05
GTCX28-471M-R05
GTCX28-501M-R05
GTCX28-551M-R05
GTCX28-601M-R05
75
90
140
150
200
230
250
260
300
350
400
420
470
500
550
600
Impulse
Sparkover
DC Holdover
Voltage
Per ITU K.12
(<150ms)
(V)
<52
<52
<80
<80
<135
<135
<135
<135
<150
<150
<150
<150
<150
<150
<150
<150
On-State Voltage
Nominal
(@ 1A)
(V)
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
@100 V/µs (V)
450
450
500
500
600
600
600
700
800
900
900
900
1050
1100
1300
1300
@1000 V/µs (V)
550
550
600
600
700
700
700
800
900
1000
1000
1000
1150
1200
1400
1400
Note:X options: S: Surface-mount; A: Axial-leaded; N: No-leaded
Part Marking : XX = lot code
Device Surge Rating, Capacitance, Insulation
Impulse
Discharge
Current
8x20µs
10 hits
GTCX28-XXXM-R05
5kA
AC
Discharge
Current
(1sec duration;
10 hits)
@50 Hz
5Arms
Part Number
Impulse
Life
Capacitance
Insulation
Resistance
UL
Rating
10x1000µs
300 hits
100A
@1Mhz*
<1pF
@100V**
10,000 (MΩ)
UL497B
#E179610
All Devices
* <1.2pF for 75V and 90V devices
** Devices <=150V measured @ 50V; Devices >=500V measured @ 250V
Gas Discharge Tubes
© 2009 Tyco Electronics Corporation. All rights reserved.
2
Document: SCD 27654
Status: Released
Rev: A
Date: March 25, 2009
Gas Discharge Tubes
GTCX26-XXXM-R05 Series
GTCX28-XXXM-R05
Product Dimensions
DIMENSIONS = MILLIMETERS [INCHES]
Surface-mount (GTCS28-XXXM-R05)
No Leads (GTCN28-XXXM-R05)
Axial Leads (GTCA28-XXXM-R05)
Pad Layout – Surface- mount Devices (GTCS28-XXXM-R05)
mm:
in*:
X
NOM
9.0
(0.354)
Y
NOM
5.6
(0.220)
Z
NOM
1.2
(0.047)
Gas Discharge Tubes
© 2009 Tyco Electronics Corporation. All rights reserved.
3
Document: SCD 27654
Status: Released
Rev: A
Date: March 25, 2009
Gas Discharge Tubes
GTCX26-XXXM-R05 Series
GTCX28-XXXM-R05
General Characteristics
No Radioactive Material
Storage Temperature: -40ºC to +90ºC
Operating Temperature: -40ºC to +90ºC
Body: Nickel Plated
Leads: Surface-mount, Axial Devices: Tin Plated
Devices with No Leads: Nickel Plated
Soldering Note: Devices with no leads are non-solderable; meant for insertion into magazine clips
Packaging Information
Part Description
No Leads:
GTCN28-XXXM-R05
Axial Leads:
GTCA28-XXXM-R05
Surface-mount: GTCS28-XXXM-R05
Tape & Reel SMD part: GTCS28-XXXM-R05-2
Tray / Reel
100pcs
100pcs
100pcs
500pcs
Standard Package
2,000pcs
1,000pcs
2,000pcs
2500pcs
Part Numbering System
Example Part Number: GTCX28-351M-R05
GT =
C=
X=
2=
8=
351 =
M=
R=
05 =
Gas Tube
Ceramic
Lead Configuration:
N=
No leads;
A=
Axial Leads;
S=
Surface-
mount
2 Electrode device
8mm Diameter
DC Spark Over Voltage of 350V (at 100V/s)
Tolerance of 20% on DC Spark Over Voltage
Product Family Designator
Surge rating: 8x20µs 5kA 10 times
Gas Discharge Tubes
© 2009 Tyco Electronics Corporation. All rights reserved.
4
Document: SCD 27654
Status: Released
Rev: A
Date: March 25, 2009
Gas Discharge Tubes
GTCX26-XXXM-R05 Series
GTCX28-XXXM-R05
Part Marking Reference
Example Part Marking:
=
35 =
R05 =
GN =
Manufacture Mark
35 R05 GN
Voltage Designator (35 = 350V)
Product Family Designator + Surge Current 5kA (8x20µs 10 hits)
Year and Week of Manufacture
308 Constitution Drive, MS R21/2A
Menlo Park, CA USA 94025-1164
Tel (800) 227-7040
(650) 361-6900
Fax (650) 361-2508
www.circuitprotection.com
www.circuitprotection.com.hk (Chinese)
www.circuitprotection.jp (Japanese)
Raychem, TE Logo and Tyco Electronics are trademarks.
Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product
selected for their own applications. Tyco Electronics reserves the right to change or update, without notice, any information contained in this publication;
to change, without notice, the design, construction, processing, or specification of any product; and to discontinue or limit production or distribution of
any product. This publication supersedes and replaces all information previously supplied. Without expressed or written consent by an officer of Tyco
Electronics, Tyco Electronics does not authorize the use of any of its products as components in nuclear facility applications, aerospace, or in critical life
support devices or systems. Tyco Electronics expressly disclaims all implied warranties regarding the information contained herein, including, but not
limited to, any implied warranties of merchantability or fitness for a particular purpose. Tyco Electronics’ only obligations are those in the Tyco
Electronics Standard Terms and Conditions of Sale and in no case will Tyco Electronics be liable for any incidental, indirect, or consequential damages
arising from the sale, resale, use, or misuse of its products.
Gas Discharge Tubes
© 2009 Tyco Electronics Corporation. All rights reserved.
5
Document: SCD 27654
Status: Released
Rev: A
Date: March 25, 2009
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