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WPGT-20B600 Datasheet(PDF) 4 Page - World Produts Inc.

Part # WPGT-20B600
Description  Gas Discharge Tubes
Download  34 Pages
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Manufacturer  WPI [World Produts Inc.]
Direct Link  http://www.worldproducts.com
Logo WPI - World Produts Inc.

WPGT-20B600 Datasheet(HTML) 4 Page - World Produts Inc.

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Gas DischarGe Tubes
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com
Rev. 13.9
2 | Gas Discharge Tubes
General Characteristics
Features
• ULRecognition.
• CULRecognition(specifictypes).
• CompliancetoMILSTD202G,method208Hand106.
• CanbeusedtomeettherequirementsofGR-1361andITUK.12.
• AQLbasedonMILSTD1916
• RoHsCompliantandHalogenFree.
Temperature Rating
Storage-40°Cto+150°C
Operate-40°Cto+90°C
100% Inspection
• DCBreakdown,insulationresistance,physicaldimensions,lead/weld
strength and appearance .
• Allothergastubecharacteristicsarecheckedusingtheappropriate
sampling procedures .
• ISO9001Certified.
• GasTubeshavenoradioactivecontent.
RoHS Compliance
WPGT Series Gas Discharge Tubes purchased from World Products, LLC
complytoamaximumconcentrationvalueof0.1%byweightinhomoge-
neousmaterialsforlead(Pb),mercury,hexavalentchromium,polybrominated
biphenyls (PBB) and polybrominated diphenyl ethers (PBDE) and of 0 .01%
weight in homogeneous materials for cadmium and are in compliance with
Directive2002/95/ECoftheEuropeanParliamentandoftheCouncilof27
January 2003 on the restriction of the use of certain hazardous substances
inelectricalandelectronicequipment(RoHSDirective).Failsafetypeswith
datecodeof10/05oraftercomplytoRoHSstandardsstatedabove.
Solderability
•Allthru-holetypescomplywithMILSTD202G,Method208H.
•Forsurfacemounttypesseebelow(J-STD-020C).
Terms and Definitions
DC Breakdown Voltage
Thevoltagemeasuredatarisetimeof100v/s.
Maximum Impulse Breakdown Voltage
Themaximumbreakdownvoltageatrisetimesof100v/usand1000v/usfor99%ofmeasuredvalues.
Maximum Impulse Discharge Current
Themaximumcurrentapplyingawaveformof8/20usthatcanbeappliedacrosstheterminalsofthegas
tubewithoutcausingthegastubetochangemorethan-20%,+30%fromitsinitialmeasuredDCbreakdown
voltage.Dwelltimebetweenpulsesis3minutes.
Alternating Discharge Current
RatedRMSvalueofACcurrentat50Hz,1sec.10times.Intervals:3min.DCbreakdownvoltagemaynot
changemorethan±25%fromitsinitialmeasuredDCbreakdownvoltage.IR>108 ohms(-20%,+30%for
70 – 90V) .
Impulse Life
Theminimumnumberofimpulsesofaspecifiedwaveformandpeakcurrentwhichagastubewillconduct
withoutcausingthegastubetochangemorethan±25%fromitsinitialmeasuredDCbreakdownvoltage.
Dwelltimebetweenpulsesis1-2minutes.
DC Holdover Voltage
ThemaximumDCvoltageacrossthetwoterminalsofthegastubeunderwhichitmaybeexpectedtoreturn
to the high impedance state after the gas tube breakdown .
Insulation Resistance
The resistance of the gas tube shall be measured each terminal to each other terminal .
DC Breakdown Voltage
Measuring Voltage
70-150V
151-400V
470-1000V
1001-2000V
2001-6000V
50V
100V
250V
500V
1000V
Capacitance
Thecapacitanceofagastubeshallbemeasuredeachterminaltoeachotherterminal.Testfrequency:
1MHzInmeasurementsinvolving3-electrodegastubes,theterminalnotbeingtestedshallbeconnected
to a ground plane .
Lead-Free Reflow Profile Recommendation (IPC/JEDEC
J-STD-020C
Reflow Parameter
Lead-Free Assembly
Minimum preheat temperature (TsMIN)
150°C
Maximum preheat temperature (TsMAX) 200°C
Preheat Time
60-180seconds
TsMAXtoTLramp-uprate
3°C/secondmaximum
TimeabovetemperatureTL(tL)
217°C60-120seconds
Peak Temperature (TP)
245°C~260°C(recommended250°C)
Time25°CtoTP
6 minute maximum
Timewithin5°ofPeakTP
10-20seconds
Ramp-downrate
4°C/secondmaximum
PREHEAT
TIME
t 25ºC TO PEAK
RAMP DOWN
RAMP UP
IR/Convection Reflow Profile (IPC/JEDEC J-STD-020C)
Tp
Tp
25
T
SMAX
T
SMIN


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