CG41.8 [LITTELFUSE]
Gas Discharge Tube (GDT) Products;
| 型号： | CG41.8 |
| 厂家： | 
LITTELFUSE |
| 描述： | Gas Discharge Tube (GDT) Products |
| 文件： | 总3页 (文件大小：495K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Gas DischargeTube (GDT) Products
CG4 Series
RoHS
CG4 Series
Description
Littelfuse CG4 Gas DischargeTubes (GDT) series
provides high levels of protection against fast rising
transients caused by lightning disturbances. Offered
in a miniature surface mount package, it has a surge
rating of 3kA 8/20μs.
Littelfuse CG4 mini GDTs are high voltage (800-
3000V) devices designed for surge protection and
high isolation applications. It is also suitable for
applications for which bias voltage or signal levels of
several hundred volts are normally present.
This CG4 mini GDTs are also suitable for applications
with bias voltages or signal levels of several hundred
volts. It can be used in conjunction with Littelfuse
MOV (Metal Oxide Varistor) to provide superior
protection performance.
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E320116
Two Electrode GDT Graphical Symbol
Features
• Voltage Ranges 800V to • Non-Radioactive
3000V
• Ultra Low capacitance
(<0.8pF)
• Excellent response to
fast rising transients
• RoHS compliant and
Lead-free
• 3kA 8/20μs surge rating
• UL 1449 recognized
• Offered with two
squared terminals
Applications
• CATV equipment
• Antennas
• IEEE 803.2 compliant
Ethernet interfaces
• Power Supplies
• Medical electronics
•Test Equipment
• Air conditioning
• EV Power Station
• Inverters/Variable
Frequency Drives ( VFD) • Renewable Energy
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 06/30/16
Gas DischargeTube (GDT) Products
CG4 Series
Electrical Characteristics
Device Specifications (at 25°C)
Life Ratings
DC Breakdown
in Volts
Impulse
Break-
down
in Volts
(@100V/µs)
Impulse
Break-
down In
Volts
Insulation
Resistance
AC
Dischage
Current
(50Hz, 1sec)
AC
Dischage
Current
(Single, 9
Cycles)
Arc
Voltage
(On State
Impulse
Capaci-
tance
Max
Impulse
Discharge
Current
(8/20µs)
Life
(10/1000µs)
(100A)
(@100V/s)
(@1MHz)
Voltage @
1Amp, 1Min)
(@1 kV/µs)
Part
Number
MIN
TYP
MAX
MAX
1200
1400
1600
2400
2600
3000
3200
3500
MIN
MAX
MIN
MIN
MIN
CG40.8
640
800
960
1300
1500
1700
2500
2700
3200
3600
3900
CG41.0
CG41.2
CG41.8
CG42.0
CG42.5
CG42.7
CG43.0
800 1000 1200
960 1200 1440
1440 1800 2160
1600 2000 2400
2000 2500 3000
2160 2700 3240
2400 3000 3600
10 Shots
@
(3kA)
300
Shots
1GΩ*
0.8pf
3A
10A
20V
1 Shot at
5kA
Note:
* Insulation resistance measured at:
• 250Vdc for CG40.8,
• 500Vdc for CG41.0 8, CG41.0, CG41.8 and CG42.0,
• 1000Vdc for CG42.5, CG42.7 and CG43.0
Product Characteristics
DeviceTin Plated 17.5 12.5
Microns
Construction: Ceramic Insulator
Materials
Storage and Operational
Temperature
-40 to +90°C
Soldering Parameters - Reflow Soldering (Surface Mount Devices)
tP
Reflow Condition
-Temperature Min (Ts(min)
Pb – Free assembly
TP
Critical Zone
Ramp-up
TL to TP
)
150°C
TL
TS(max)
Pre Heat -Temperature Max (Ts(max)
)
200°C
tL
-Time (Min to Max) (ts)
60 – 180 secs
Ramp-down
Average ramp up rate (LiquidusTemp
(TL) to peak
Preheat
3°C/second max
5°C/second max
TS(min)
tS
TS(max) toTL - Ramp-up Rate
-Temperature (TL) (Liquidus) 217°C
25
Reflow
time to peak temperature
(t 25ºC to peak)
-Temperature (tL)
60 – 150 seconds
260+0/-5 °C
Time
PeakTemperature (TP)
Time within 5°C of actual peak
Temperature (tp)
10 – 30 seconds
Ramp-down Rate
6°C/second max
8 minutes Max.
260°C
Time 25°C to peakTemperature (TP)
Do not exceed
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 06/30/16
Gas DischargeTube (GDT) Products
CG4 Series
Device Dimensions
Product Marking
Dimensions in millimeters
TOP VIEW
PROFILE VIEW
0.6 0.ꢀ
LF 1200 16
Littelfuse Logo
Voltage Code
Production Year
Code
4.2 0.2
TOP VIEW
Part Numbering System and Ordering Information
1.3
CG4 x.x SM
7.2
Series
CG4
3.5
Breakdown Voltage
0.8 = 800V
Recommended Soldering Pad Layout
1.0 = 1000V
3.0 = 3000V
(Voltage code examples for x.x)
Lead Option Code
SM (Surface Mount,
two squared terminals)
Taping and Reel Specifications
Unit = mm
2400 ± 0410
P0
P
Item
Spec
Item
Spec
1475 ± 041
Ø1455 ± 0405
645 ± 041
E
F
D
t
P
8 ± 041
E
D
K
P0
W
F
±40 ± 041
1640 ± 043
745 ± 041
±49 ± 041
W
B0
t
04± ± 0405
645 ± 041
Ø1450MIN
A0
B0
A0
K
Packaging Quantity: 1000 pcs per reel (13”)
1 reels per inner box
330±±40
>145 Typ4
10 inners box per carton
10,000 pcs per full carton
100 Typ4
18 Typ4
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 06/30/16
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