Marconi Applied Technologies MG5223 S-Band Magnetron

Marconi Applied TechnologiesMG5223S-Band MagnetronThe data should be read in conjunction with the MagnetronPreamble.ABRIDGED DATAFixed frequency pulse magnetron.Operating frequency . . . . . 3050 + 10 MHzTypical peak output power . . . . . . 30 kWMagnet . . . . . . . . . . . . . . . integralOutput . . . . . . . . . . . . no. 10 waveguideCoupler . . . mates with NATO S.N. 5985-99-083-0058Cooling . . . . . . . . . . . natural or forced-airGENERAL DATAElectricalCathode . . . . . . . . . . . . indirectly heatedHeater voltage (see note 1) . . . . . . . 6.3 VHeater current at 6.3 V . . . . . . . . 1.25 AHeater starting current, peak value,not to be exceeded . . . . . . . . . 6.0 A maxCathode pre-heating time (minimum) . . . 180 sMechanicalOverall dimensions . . . . . . . . . . . see outlineNet weight . . . . . . . . . . . . 2.1 kg approxMounting position . . . . . . . . . . . . . anyA minimum clearance of 50 mm must be maintained betweenthe magnetron and any magnetic materials.Cooling (see note 2) . . . . . . . natural or forced-airMAXIMUM AND MINIMUM RATINGS(Absolute values)These ratings cannot necessarily be used simultaneously, andno individual rating should be exceeded.Min MaxHeater voltage (see note 1) . . . . . 5.7 6.9 VHeater starting current (peak) . . . . – 6.0 AAnode voltage (peak) . . . . . . . 7.5 8.5 kVAnode current (peak) . . . . . . . 6.0 12 AAnode input power (mean) (see note 3) . – 100 WDuty cycle . . . . . . . . . . – 0.001Pulse duration . . . . . . . . . – 1.2 msRate of rise of voltage pulse(see note 4) . . . . . . . . . – 150 kV/msVSWR at the output coupler . . . . – 1.5:1Anode temperature (see note 2) . . . – 120 8CTYPICAL OPERATIONOperating ConditionsCondition1 2Heater voltage . . . . . . . . . 5.3 6.3 VAnode current (peak) . . . . . . . 8.0 8.0 APulse duration . . . . . . . . . 0.55 0.07 msPulse repetition rate . . . . . 1000 4000 ppsRate of rise of voltage pulse . . . . 150 150 kV/msTypical PerformanceAnode voltage (peak) . . . . . . . 8.0 8.0 kVOutput power (peak) . . . . . . 30 30 kWOutput power (mean) . . . . . . 16.5 8.4 WMarconi Applied Technologies Limited, Waterhouse Lane, Chelmsford, Essex CM1 2QU England Telephone: +44 (0)1245 493493 Facsimile: +44 (0)1245 492492e-mail: mtech.uk@marconi.com Internet: www.marconitech.com Holding Company: Marconi p.l.c.Marconi Applied Technologies Inc. 4 Westchester Plaza, PO Box 1482, Elmsford, NY10523-1482 USA Telephone: (914) 592-6050 Facsimile: (914) 592-5148 e-mail: mtech.usa@marconi.com# 2001 Marconi Applied Technologies Limited A1A-MG5223 Issue 2, December 2001181/6142

PERFORMANCE CHART106028AMAXIMUMTYPICAL8MINIMUM6PEAK ANODE VOLTAGE (kV)420PEAK CURRENTRATING LIMITS5040TYPICAL30MINIMUMPEAK OUTPUT POWER (kW)20100 0 2 4 6 8 10 12 14 16PEAK ANODE CURRENT (A)# 2001 Marconi Applied Technologies MG5223, page 3

OUTLINE(All dimensions without limits are nominal)6027BADE1UST4 COUNTERSUNKHOLES. SEE DETAILVF1WG908ANODETEMPERATURETEST POINTBDetail ofCountersunk HolesGFPHH6 HOLES 1JSEE NOTEL1Q2 HOLES 1KSEE NOTEMRefMillimetresLead ConnectionsColourGreenYellowElementHeaterHeater, cathodeOutline NotePositional tolerance of holes 0.4 mm diameter with respect towaveguide.RNCA 165.1 maxB 123.2 maxC 60.0 maxD 111.13E 43.69 maxF 11.09G 51.59H 32.54J 7.14 + 0.157 0.00K 6.50 + 0.05L 305.0 + 5.0M 12.7N 3.1 minP 20.0 maxQ 22.0R 48.0S 16.0T 15.0U 4.25 + 0.10V 0.5W 8.5 + 0.1MG5223, page 4# 2001 Marconi Applied Technologies

HEALTH AND SAFETY HAZARDSMarconi Applied Technologies magnetrons are safe to handleand operate, provided that the relevant precautions statedherein are observed. Marconi Applied Technologies does notaccept responsibility for damage or injury resulting from the useof electronic devices it produces. Equipment manufacturers andusers must ensure that adequate precautions are taken.Appropriate warning labels and notices must be provided onequipments incorporating Marconi Applied Technologiesdevices and in operating manuals.High VoltageEquipment must be designed so that personnel cannot comeinto contact with high voltage circuits. All high voltage circuitsand terminals must be enclosed and fail-safe interlock switchesmust be fitted to disconnect the primary power supply anddischarge all high voltage capacitors and other stored chargesbefore allowing access. Interlock switches must not bebypassed to allow operation with access doors open.RF RadiationPersonnel must not be exposed to excessive RF radiation. AllRF connectors must be correctly fitted before operation so thatno leakage of RF energy can occur and the RF output must becoupled efficiently to the load. It is particularly dangerous tolook into open waveguide or coaxial feeders while the device isenergised. Screening of the cathode sidearm of high powermagnetrons may be necessary.X-Ray RadiationHigh voltage magnetrons emit a significant intensity of X-raysnot only from the cathode sidearm but also from the outputwaveguide. These rays can constitute a health hazard unlessadequate shielding for X-ray radiation is provided. This is acharacteristic of all magnetrons and the X-rays emittedcorrespond to a voltage much higher than that of the anode.Whilst Marconi Applied Technologies has taken care to ensure the accuracy of the information contained herein it accepts no responsibility for the consequences of anyuse thereof and also reserves the right to change the specification of goods without notice. Marconi Applied Technologies accepts no liability beyond that set out in itsstandard conditions of sale in respect of infringement of third party patents arising from the use of tubes or other devices in accordance with information contained herein.# 2001 Marconi Applied Technologies Printed in EnglandMG5223, page 5