GTCX26-XXXM-R05 Series
GTCX26-XXXM-R05 Series
Littelfuse Circuit Protection 6mm 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.
Gas Discharge Tubes
Benefits:
Compact, small form factor suitable for efficient
assembly
Helps provide overvoltage fault protection against
high energy surges
Suitable for high-frequency applications
Features:
2Pole, 6mm 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
Telecommunications
MDF
© 2016 Littelfuse,Inc.
modules, xDSL equipment, RF sytem
Specifications are subject to change without notice.
Protection, antenna, pase station
Revised July 26,2016
1
• Industrial and consumer electronics, such as
Document: SCD27329
Status: Released
Rev: C Date: JULY 26,, 2011
GTCX26-XXXM-R05 Series
GTCX26-XXXM-R05 Series
Gas Discharge Tubes
Device Voltage Ratings and Part Marking
Part Number
DC Sparkover
@100V/s
±20% Tolerance
(V)
GTCX26-750M-R05
GTCX26-900M-R05
GTCX26-141M-R05
GTCX26-151M-R05
GTCX26-201M-R05
GTCX26-231M-R05
GTCX26-251M-R05
GTCX26-261M-R05
GTCX26-301M-R05
GTCX26-351M-R05
GTCX26-401M-R05
GTCX26-421M-R05
GTCX26-471M-R05
GTCX26-501M-R05
GTCX26-551M-R05
GTCX26-601M-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
PartMarking : XX = lot code
Device Surge Rating, Capacitance, Insulation Resistance, UL
Listing
Part Number
Impulse
Discharge
Current
8x20µs
10 hits
GTCX26-XXXM-R05
Devices <=90V measured @ 50V
Devices >=500V measured @ 250V
5kA
Impulse
Life
AC
Discharge
Current
(1sec duration;
10 hits)
@50 Hz
5Arms
Capacitance
Insulation
Resistance
UL
Rating
10x1000µs
300 hits
100A
@1Mhz
<1pF
@100V*
10,000 (MΩ)
UL497B
#E179610
All Devices
© 2016 Littelfuse,Inc.
Specifications are subject to change without notice.
Revised July 26,2016
2
Document: SCD27329
Status: Released
Rev: C Date: JULY 26,, 2011
GTCX26-XXXM-R05 Series
GTCX26-XXXM-R05 Series
Gas Discharge Tubes
Product
Dimensions
DIMENSIONS = MILLIMETERS [INCHES]
Surface-mount (GTCS26-XXXM-R05)
No Leads (GTCN26-XXXM-R05)
Axial Leads (GTCA26-XXXM-R05)
Pad Layout – Surface- mount Devices (GTCS26-XXXM-R05)
mm:
in*:
X
NOM
7.0
(0.276)
Y
NOM
3.7
(0.146)
Z
NOM
1.3
(0.051)
© 2016 Littelfuse,Inc.
Specifications are subject to change without notice.
Revised July 26,2016
3
Document: SCD27329
Status: Released
Rev: C Date: JULY 26,, 2011
GTCX26-XXXM-R05 Series
GTCX26-XXXM-R05 Series
Gas Discharge Tubes
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
m
Packaging Information
Part Description
No Leads:
GTCN26-XXXM-R05
Axial Leads:
GTCA26-XXXM-R05
Surface-mount:
GTCS26-XXXM-R05
Surface-mount (T&R): GTCS26-XXXM-R05-2
Tray /
Reel
100pcs
100pcs
100pcs
750pcs
Standard Package
2,000pcs
1,000pcs
2,000pcs
6000pcs
Part Numbering System
Example Part Number: GTCX26-351M-R05
GT =
C=
X=
2=
6=
351 =
M=
R=
05 =
Gas Tube
Ceramic
Lead Configuration:
N=
No leads;
A=
Axial Leads;
S=
Surface-mount
2 Electrode device
6mm 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
© 2016 Littelfuse,Inc.
Specifications are subject to change without notice.
Revised July 26,2016
4
Document: SCD27329
Status: Released
Rev: C Date: JULY 26,, 2011
GTCX26-XXXM-R05 Series
GTCX26-XXXM-R05 Series
Gas Discharge Tubes
Example Part Marking:
=
35 =
R05 =
GN =
Part Marking Reference
Guide
35 R05 GN
Manufacture Mark
Voltage Designator (35 = 350V)
Product Family Designator + Surge Current 5kA (8x20µs 10 hits)
Year and Week of Manufacture
© 2016 Littelfuse,Inc.
Specifications are subject to change without notice.
Revised July 26,2016
5
Document: SCD27329
Status: Released
Rev: C Date: JULY 26,, 2011
