©2009 Littelfuse, Inc.

Gas Discharge Tube (GDT) Products

28

Revised: November 10, 2009

Specifications are subject to change without notice.

Please refer to www.littelfuse.com for current information.

Customer should verify actual device performance in their specific applications.

CG/CG2 Series

CG/CG2 Series

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

(@1 Kv/μsec)

Insulation

Resistance

Capaci-

tance

(@1MHz)

Arc

Voltage

(on state

Voltage)

@1Amp

Min

Surge

Life

(@500A

10/1000μs)

Nominal

Impulse

Discharge

Current

(8/20μs)

Nominal

AC

Discharge

Current

(10x1sec

@50-60Hz)

AC

Dischage

Current

(9 cycle

@50Hz)

DC

Holdover

Max

Impulse

Discharge

Current

(1 Application

@ 10/350μs)

MIN

TYP

MAX

MAX

MIN

MAX

TYP

TYP

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NOTES:

1. Tested to UL1449 Third Edition

2. Reference REA PE-80, 0.2A. Tested to ITU-T Rec K.12 and REA PE 80 < 150 mSec.

3. Leaded devices = 5x[5(+) or 5 (-)] applications 20kA 8/20μSec. (75 to 600 volt devices.)

MS and Core devices = 10x[5(+) and 5(-)] applications 10kA 8/20μS (800 to 1000 volt devices.)

Product Characteristics

Materials

LS, Axial:

Device: Nickel Plated 2–5 Microns

Lead Wires: Tin Plated 17.5 ± 12.5 Microns

Construction: Ceramic Insulator

Core:

Device: Tin Plated 17.5 ± 12.5 Microns.

Construction: Ceramic Insulator

MS:

Device: Dull Tin Plated 7–9 Microns

Construction: Ceramic Insulator

Product Marking

LF Logo, Voltage and date code; Black in

positive print

Glow to arc

transition current

< 0.5Amps

Glow Voltage

60-160 Volts

Storage and

Operational

Temperature

-40 to +90

Maximum Follow

230 Volts r.m.s, 200 Amps.

(800V and 1000V devices tested to UL1449 3rd edition)