GTCA28-750M-R20 [LITTELFUSE]
Surge Protection Circuit, ROHS COMPLIANT, PACKAGE-2;
| 型号： | GTCA28-750M-R20 |
| 厂家： | 
LITTELFUSE |
| 描述： | Surge Protection Circuit, ROHS COMPLIANT, PACKAGE-2 电信 电信集成电路 |
| 文件： | 总5页 (文件大小：423K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Gas Dis charge 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.
Features:
Benefits:
2Pole, 8mm devices
Helps provide overvoltage fault protection against
high energy surges
Broad voltage range from 75V-350V
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
- Surge protectors
- MDF modules, xDSL equipment, RF system
protection, antenna, base station
- Alarm system
© 2016 Littelfuse,Inc.
Specifications are subject to change without notice
Revised July 26,2016. All rights reserved.
Document: SCD27622
Status: Released
Rev: D Date: JULY 26, 2016
1
Gas Discharge Tubes
GTCX26-XXXM-R05 Series
GTCX28-XXXM-R20 Series
Device Voltage Ratings and Part Marking
Impulse
Sparkover
DC Holdover
On-State Voltage
Voltage
Part Number
DC Sparkover
@100V/s
±20% Tolerance
(V)
Nominal
Per ITU K.12
(@ 1A)
(<150ms)
(V)
@100 V/µs (V)
@1000 V/µs (V)
(V)
GTCX28-750M-R20
GTCX28-900M-R20
GTCX28-141M-R20
GTCX28-151M-R20
GTCX28-201M-R20
GTCX28-231M-R20
GTCX28-251M-R20
GTCX28-261M-R20
GTCX28-301M-R20
GTCX28-351M-R20
75
450
450
500
500
600
600
600
700
800
900
550
550
600
600
700
700
700
800
900
1000
<52
<52
20
20
20
20
20
20
20
20
20
20
90
140
150
200
230
250
260
300
350
<80
<80
<135
<135
<135
<135
<150
<150
Note:X options: S: Surface-mount; A: Axial-leaded; N: No-leaded
Part Marking : XX = lot code
Device Surge Rating, Capacitance, Insulation Resistance, UL
AC
Impulse
Discharge
Current
Discharge
Current
(1sec duration;
10 hits)
Impulse
Life
Insulation
Resistance
UL
Rating
Part Number
Capacitance
8x20µs
10 hits
10x1000µs
300 hits
UL497B
#E179610
@50 Hz
20Arms
@1Mhz
<1.5pF
@100V*
GTCX28-XXXM-R20
20kA
100A
10,000 (MΩ)
All Devices
* Devices <=150V measured @ 50V;
© 2016 Littelfuse,Inc.
Specifications are subject to change without notice
Revised July 26,2016. All rights reserved.
Document: SCD27622
Status: Released
Rev: D Date: JULY 26, 2016
2
Gas Discharge Tubes
GTCX26-XXXM-R05 Series
GTCX28-XXXM-R20 Series
Product Dimens ions
DIMENSIONS = MILLIMETERS [INCHES]
Surface-mount (GTCS28-XXXM-R20)
No Leads (GTCN28-XXXM-R20)
Axial Leads (GTCA28-XXXM-R20)
Pad Layout – Surface- mount Devices (GTCS28-XXXM-R20)
X
Y
Z
NOM
9.0
NOM
5.6
NOM
1.2
mm:
in*:
(0.354)
(0.220)
(0.047)
© 2016 Littelfuse,Inc.
Specifications are subject to change without notice
Revised July 26,2016. All rights reserved.
Document: SCD27622
Status: Released
Rev: D Date: JULY 26, 2016
3
Gas Discharge Tubes
GTCX26-XXXM-R05 Series
GTCX28-XXXM-R20 Series
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
Tray / Reel
Standard Package
No Leads:
Axial Leads:
GTCN28-XXXM-R20
GTCA28-XXXM-R20
100pcs
100pcs
100pcs
2,000pcs
1,000pcs
2,000pcs
4,000pcs
Surface-mount: GTCS28-XXXM-R20
Tape & Reel SMD part: GTCS28-XXXM-R20-2 500pcs
Part Numbering System
Example Part Number: GTCX28-231M-R20
GT =
C =
X =
2 =
Gas Tube
Ceramic
Lead Configuration: N= No leads; A= Axial Leads; S= Surface-mount
2 Electrode device
8mm Diameter
8 =
231 = DC Spark Over Voltage of 230V (at 100V/s)
M =
R =
Tolerance of 20% on DC Spark Over Voltage
Product Family Designator
20 =
Surge rating: 8x20µs 20kA 10 times
© 2016 Littelfuse,Inc.
Specifications are subject to change without notice
Revised July 26,2016. All rights reserved.
Document: SCD27622
Status: Released
Rev: D Date: JULY 26, 2016
4
Gas Discharge Tubes
GTCX26-XXXM-R05 Series
GTCX28-XXXM-R20 Series
Part Marking Reference
Example Part Marking:
23 R20 GN
Manufacture Mark
Voltage Designator (23 = 230V)
=
23 =
R20 =
Product Family Designator + Surge Current 20kA (8x20µs 10 hits)
Year and Week of Manufacture
GN =
Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or
nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in
personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for
products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in
applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions
of Sale, unless otherwise agreed by Littelfuse.
© 2016 Littelfuse,Inc.
Specifications are subject to change without notice
Revised July 26,2016. All rights reserved.
Document: SCD27622
Status: Released
Rev: D Date: JULY 26, 2016
5
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