Gas Discharge Tubes
CG/CG2 Series
RoHS
CG/CG2 Series
Description
Littelfuse highly reliable CG/CG2 Series GDTs provide
a high degree of surge protection in a small size ideal
for board level circuit protection.
GDTs function as switches which dissipate a
minimum amount of energy and therefore handle
currents that far surpass other types of transient
voltage protection. Their gas-filled, rugged ceramic
metal construction make them well suited to adverse
environments.
The CG/CG2 series comes in a variety of forms
including surface mount, core, straight and shaped
Agency Approvals
leads, to serve a variety of mounting methods.
The CG Series (75V-110V) is ideal for protection
AGENCY AGENCY FILE NUMBER
of test and communication equipment and other
1
E128662
devices in which low voltage limits and extremely
low arc voltages are required.
2
E320116
NOTES: The CG2 Series (145V-1000V) is ideal for protecting
1. Certified to UL 497B.
equipment where higher voltage limits and holdover
2. Only CG2300, CG2470, CG2600, CG2800 and CG221000. Certified to UL 1449.
voltages are necessary.
2 Electrode GDT Graphical Symbol
Features
RoHS and Lead-free Meets REA PE-80
compliant
Available in surface
Rugged Ceramic-Metal mount, and a variety of
construction lead options options
Additional Information
Low Capacitance
(<1.5pf)
Applications
Datasheet
Resources SamplesSamples
Communication lines Instrumentation circuits
CG/CG2 CG/CG2 CG/CG2CG/CG2
and equipment
Medical electronics
CATV equipment
ADSL equipment
Test equipment
Telecom SLIC
Data lines protection
Power supplies
2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/06/15Gas Discharge Tubes
CG/CG2 Series
Electrical Characteristics
Device Specifications (at 25C) Life Ratings
DC Breakdown Impulse Impulse Insulation Nominal Nominal AC DC Max
Capaci- Arc Surge
in Volts Break- Break- Resistance Impulse AC Dischage Holdover Impulse
tance Voltage Life
2
down down In (on state Discharge Discharge Current Voltage Discharge
(@100V/s)
(@1MHz)
(@500A
Voltage) (9 cycle
in Volts Volts Current Current Current
10/1000s)
@1Amp (10x1sec @50Hz)
(@100V/s) (@1 Kv/sec) (8/20s) (1 Application
@50-60Hz)
Min
Part
@ 10/350s)
Number
MIN TYP MAX MAX MIN MAX TYP TYP
CG75 60 75 90 400 650
10
CG90 72 90 108 400 600 52 V 4kA
10
(at 50V)
CG90 SN 72 90 108 400 600
CG110 88 110 132 450 600
CG2145 116 145 174 500 600 80 V
CG2145 SN 120 145 174 500 600
1
CG2230 195 230 265 600 700
1
CG2230 SN 184 230 276 600 700
CG2250 213 250 288 625 725
10 shots
CG2250 SN 200 250 300 625 725 20 A
3
(@20kA)
100 A
400
CG2300 255 300 345 700 800 1.5 pf 15 V
shots
CG2300 SN 240 300 360 700 800
10
10
2.5kA
CG2350 297 350 403 750 900 (at 100V)
CG2350 SN 280 350 420 750 900 135 V
CG2420 357 420 483 800 1000
1
CG2470 400 470 540 850 1200
1
CG2470 SN 376 470 564 850 1200
1
CG2600 510 600 690 1000 1400
1
CG2600 SN 480 600 720 1000 1400
1
CG2800 680 800 920 1200 1500
10 shots
10 A
1
(@10kA)
CG21000 850 1000 1150 1500 1600 65 A
NOTES:
1. Certified to UL 1449.
2. Reference REA PE-80, 0.2A. Tested to ITU-T Rec K.12 and REA PE 80 < 150 mSec.
3. 5 x [5 (+) or 5 (-)] applications 20kA 8/20Sec. (75 to 600 volt devices.)
10 x [5 (+) and 5 (-)] applications 10kA 8/20Sec. (800 and 100 volt devices.)
Product Characteristics
Glow to arc
LS, Axial:
< 0.5Amps
transition current
Device: Tin Plated 25 Microns
Lead Wires: Tin Plated 17.5 12.5 Microns
Glow Voltage 60-160 Volts
Construction: Ceramic Insulator
Core:
Materials
Storage and
Device: Tin Plated 17.5 12.5 Microns.
Operational -40 to +90
Construction: Ceramic Insulator
Temperature
MS:
Device: Dull Tin Plated 79 Microns
Maximum Follow 230 Volts r.m.s, 200 Amps.
Construction: Ceramic Insulator
1
On Current (800V and 1000V devices tested to UL1449 3rd edition)
LF Logo, Voltage and date code; Black in
Product Marking
positive print
2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/06/15