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CG7120MS

P1-P3P4-P4
Gas Discharge Tube (GDT) Products
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/18/16
CG7 Series
Description
Littelfuse CG7 Series offers high surge ratings in a
miniature surface mount package. Special design
features provide high levels of protection against fast
rising transients caused by lightning disturbances.
These devices are extremely robust and are able to
divert 1kA pulse without destruction.
Littelfuse CG7 mini Gas Tubs are specifically
designed for protection of electrical, multimedia,
and communication equipment against over voltage
transients in surface mount assembly applications.
This series offers the most cutting edge protection
using non-radioactive elements. Low insertion
loss is perfectly suited to broadband equipment
applications.
Features
• RoHS compliant and
Lead-free
• GHz working frequency
• Excellent stability on
multiple pulse duty
cycle
• Excellent response to
fast rising transients.
• Ultra Low Insertion
Loss
• 1kA surge capability
tested with 8/20μS
pulse as defined by IEC
61000-4-5
• Ultra small devices
offered in SMD package
• Ultra Low capacitance
(0.3pF)
• Voltage Ranges 75V to
470V
• UL recognized
• Conforms to ITU-T K12,
IEC 61000-4-5
Applications
• Set top box
• Cable Modem
• Embedded Multimedia
Terminal Adapter
(EMTA)
• RF Connector
• RJ45 Connector
• Multimedia over Coax
Alliance (MoCA)
• Antenna
• Coaxial Cable
• G.fast modem
• CATV equipment
• Data lines
• Telecom SLIC protection
• Broadband equipment
• ADSL equipment,
including ADSL2+
• XDSL equipment
• IAD (Internet Access
Device)
AGENCY AGENCY FILE NUMBER
E128662
Agency Approvals
CG7 Series
RoHS
Two Electrode GDT Graphical Symbol
PRELIMINARY
Gas Discharge Tube (GDT) Products
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/18/16
CG7 Series
Product Characteristics
Voltage Vs. Time Characteristic
Materials
Device Tin Plated 17.5 ± 12.5
Microns
Construction: Ceramic Insulator
Storage and Operational
Temperature
-40 to +90°C
@1.0GHz = 0.02dB
@1.4GHz = 0.03dB
@1.8GHz = 0.05dB
@2.0GHz = 0.06dB
@2.4GHz = 0.07dB
@2.8GHz = 0.08dB
@3.1GHz = 0.09dB
@3.5GHz = 0.10dB
@4.0GHz = 0.12dB
Typical Insertion Loss
Note: Insertion data for customer reference only, application testing needed for verification.
Voltage (V)
Time (ns)
0200 400600 8001000 12
00
Max dynamic
breakover voltage
Hold over voltage
On-state voltage
Electrical Characteristics
Part
Number
Device Specifications (at 25°C) Life Ratings
DC Breakdown
in Volts
(@100V/s)
Impulse
Break-
down
in Volts
(@100V/µs)
Impulse
Break-
down In
Volts
(@1kV/µsec)
Insulation
Resistance
Capaci-
tance
(@1MHz)
Max
Impulse
Discharge
Current
(8x20µs)
Max Impulse
Discharge
Current
(10x700µs)
AC Dischage
Current
(9 cycle @50Hz)
DC
Holdover
Voltage
(<150ms)
Impulse
Life
(8x20µs)
(100A)
MIN TYP MAX MAX MIN MAX MIN MIN
CG775
60 75 90 500 600
0.3pf
±5 Shots
(@1kA)
1
1 Shot
at 2kA
±5 Shots
(@ 100A/4kV)
2
1A
52V
300
Shots
CG790
72 90 108 500 600 52V
CG7120
96 120 144 500 600 80V
CG7150
120 150 180 500 600 80V
CG7200
160 200 240 600 700 135V
CG7230
186 230 276 600 700 135V
CG7250
200 250 300 600 700 135V
CG7350
280 350 420 600 800 135V
CG7400
360 400 480 700 800 135V
CG7470
376 470 564 800 1000 135V
Notes:
UL Pending for CG775 and CG7470.
1. 5 x (+) and 5 x (-) applications of 1kA 8x20μs sec.
2. 5 x (+) and 5 x (-) applications of 100A 10x700μs sec.
1GΩ@50V
1GΩ@100V
1GΩ@250V
PRELIMINARY
Gas Discharge Tube (GDT) Products
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/18/16
CG7 Series
Reflow Condition Pb – Free assembly
Pre Heat
- Temperature Min (T
s(min)
) 150°C
- Temperature Max (T
s(max)
) 200°C
- Time (Min to Max) (t
s
) 60 – 180 secs
Average ramp up rate (Liquidus Temp
(T
L
) to peak
3°C/second max
T
S(max)
to T
L
- Ramp-up Rate 5°C/second max
Reflow
- Temperature (T
L
) (Liquidus) 217°C
- Temperature (t
L
) 60 – 150 seconds
Peak Temperature (T
P
) 260
+0/-5
°C
Time within 5°C of actual peak
Temperature (t
p
)
10 – 30 seconds
Ramp-down Rate 6°C/second max
Time 25°C to peak Temperature (T
P
) 8 minutes Max.
Do not exceed 260°C
Soldering Parameters - Reflow Soldering (Surface Mount Devices)
Time
Temperature
T
P
T
L
T
S(max)
T
S(min)
25
t
P
t
L
t
S
time to peak temperature
(t 25ºC to peak)
Ramp-down
Ramp-up
Preheat
Critical Zone
T
L
to T
P
Device Dimensions Product Marking
2.8 ± 0.2
2.8 ± 0.2
2.1 ± 0.2 2.1 ± 0.2
TOP VIEW
PROFILE VIEW
TOP VIEW
4
2.5
1.2
0.5
R
ecommended Soldering Pad Layout
Dimensions in millimeters
Type Cod
eProduction Year
Code (Lasr Digit)
Production Month
Code
A 6 A
Type Code
A CG775
B CG790
T CG7120
C CG7150
O CG7200
D CG7230
R CG7250
G CG7350
I CG7400
P CG7470
Month Code
A January
B February
C March
D April
E May
F June
G July
H August
I September
J October
K November
L December
PRELIMINARY
P1-P3P4-P4

CG7120MS

Mfr. #:
Buy CG7120MS
Manufacturer:
Littelfuse
Description:
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 120V SMD Ultra Low 0.3pF
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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