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MQME-28E-P Passive Filter
-70V to +70V
Continuous Input
HigH Reliability eMi FilteR
20A 35m @ 125C
Output Current Max. DC Resistance
to
>80dB @ 500kHz
Differential Attenuation
Full PoweR oPeRation: -55C The MilQor(R) series of high-reliability EMI filters brings SynQor's field proven technology and manufacturing expertise to the Military/Aerospace industry. SynQor's innovative QorSealTM packaging approach ensures survivability in the most hostile environments. Compatible with the industry standard format, these filters have high differential-mode and common-mode attenuation, low DC resistance, and a stabilizing bulk capacitor resistor. They follow conservative component derating guidelines and they are designed and manufactured to comply with a wide range of military standards.
+125C
MQ
ER W FILT 20 EMI 20A 3 8Vin 2
M
8 E-2
E-P
B -Y-H
Design Process
MQMEseriesfiltersare: * DesignedforreliabilityperNAVSO-P3641-Aguidelines * Designedwithcomponentsderatedper: --MIL-HDBK-1547A --NAVSOP-3641A DesigneD & ManufactureD in the usa featuring QorsealTM hi-rel asseMbly
Features
* 20Aoutputcurrent * VerylowDCresistance * >80dBdifferential-modeattenuationat500kHz * >60dBcommon-modeattenuationat500kHz * Stabilizingbulkcapacitoranddampingresistorincluded * AllcapacitorsareX7Rmulti-layerceramic * DesignedtomeetallMIL-STD461EMIandmostRTCA/ D0-160ESection22lightningrequirements
Qualification Process
MQMEseriesfiltersarequalifiedto: * MIL-STD-810F --consistentwithRTCA/D0-160E * SynQor'sFirstArticleQualification --consistentwithMIL-STD-883F * SynQor'sLong-TermStorageSurvivabilityQualification * SynQor'son-goinglifetest
In-Line Manufacturing Process
* AS9100andISO9001:2000certifiedfacility * Fullcomponenttraceability * Temperaturecycling * Constantacceleration * 24,96,160hourburn-in * Threeleveltemperaturescreening
Product # MQME-28E-P Phone 1-888-567-9596
Specification Compliance
MQMEseriesfilters(withMQFLconverters)aredesignedtomeet: * MIL-HDBK-704-8(AthroughF) * RTCA/DO-160ESection16 * MIL-STD-1275B * DEF-STAN61-5(part6)/5 * MIL-STD-461(C,D,E) * RTCA/DO-160ESection22
www.synqor.com Doc.# 005-0005135 Rev. A 03/18/09 Page 1
MQME-28E-P Current: 20A
Technical Specification
BLOCKDIAGRAM
TYPICALCONNECTIONDIAGRAM
Product # MQME-28E-P
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Doc.# 005-0005135 Rev. A
03/18/09
Page 2
MQME-28E-P Current: 20A
Technical Specification
MQME-28E-P ELECTRICAL CHARACTERISTICS
Parameter
ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous Transient (1 s) Isolation Voltage (I/O to case) Continuous Transient (1 s) Output Current Operating Case Temperature Storage Case Temperature Lead Temperature (20 s) ELECTRICAL CHARACTERISTICS Input Voltage Continuous Transient (1 s, RS* = 0 ) Transient (100 ms, RS* = 0 ) Output Voltage (continuous) Output Current (continuous) DC Resistance RDC TCASE = 25C TCASE = 125C Power Dissipation (20A output current) TCASE = 25C TCASE = 125C Total Differential-Mode Capacitance Total Common-Mode Capacitance Bulk Capacitor Damping Capacitor Noise Attenuation INPUT VOLTAGE SPIKE SUPPRESSION Output Voltage Deviation due to a Spike 2 Input Voltage Spike (Centered on Vin) 600V, 10s, Rs = 50 ISOLATION CHARACTERISTICS Isolation Voltage (any pin to case) Continuous Transient ( 100 s) Isolation Resistance (any pin to case) * Rs = Source Impedance
Product # MQME-28E-P Phone 1-888-567-9596 www.synqor.com Doc.# 005-0005135 Rev. A 03/18/09 Page 3
Min. Typ. Max. Units Notes & Conditions
Vin=28V DC 5%, Iout= 20A unless otherwise specified
Subgroup3
Group A
See Note 1 -100 -200 -500 -1000 -55 -65 100 200 500 1000 20 125 135 300 V V V V A C C C
-70 -80 -100
70 80 100
V V V V A m m W W F F F
See Note 1 for negative limits " See Note 1
1, 2, 3
Vout = Vin - (Iin x Rdc) 20 25 35 10 14 71 0.28 58 0.2
1, 2, 3 1, 2, 3 1 3
1, 2, 3 Measured across input or output pins Measured between any pin to case
See Figure 1
-5
10
V
RTCA/DO-160E
-500 -800 100
500 800
V V M
1 1
MQME-28E-P Current: 20A
Technical Specification
MQME-28E-P ELECTRICAL CHARACTERISTICS (Continued)
Parameter
RELIABILITY CHARACTERISTICS Calculated MTBF (MIL-STD-217F2) GB @ Tcase = 70C AIF @ Tcase = 70C Demonstrated MTBF WEIGHT CHARACTERISTICS Device Weight Electrical Characteristics Notes 1. While the filter will survive these input voltage limits, the filter's output voltage will be outside the limits for an MQFL converter input voltage range. 2. Verified by qualification testing and analysis. 3. Only the ES and HB grade products are tested at three temperatures. The B and C grade products are tested at one temperature. Please refer to the Construction and Environmental Stress Screening Options table for details. * Rs = Source Impedance 79 g 21.7 1.26 TBD 106 Hrs. 106 Hrs. 106 Hrs.
Min. Typ. Max. Units Notes & Conditions
Vin=28V DC 5%, Iout= 20A unless otherwise specified
Subgroup3
Group A
Product # MQME-28E-P
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Doc.# 005-0005135 Rev. A
03/18/09
Page 4
MQME-28E-P Current: 20A
Technical Specification
Figure 1: Typical Common Mode and Differential Mode Attenuation provided by the filter as a function of frequency. Both input lines are connected to chassis ground through 50W resistors. The filter case is also connected to chassis ground.
Figure 2: Typical Output Impedance (magnitude) of the filter looking back into its output pins with the input pins connected to a source with zero source impedance.
Figure 3: MIL-STD-461E Method CE101 Low Frequency Conducted Emissions. Limit line (in red) is the `Submarine Applications DC Curve'. Setup described on Page 7.
Figure 4: MIL-STD-461E Method CE102 High Frequency Conducted Emissions. Limit line (in red) is the `Basic Curve'. Setup described on Page 7.
Product # MQME-28E-P
Figure 5: MIL-STD-461E Method RE101 Low Frequency Radiated Emissions. Limit line (in red) is the `Standard Curve' from MIL-STD461C Method RE01, which is more strict than all RE101 limits. Setup described on Page 7.
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Figure 6: MIL-STD-461E Method RE102 High Frequency Radiated Emissions. Limit line (in red) is the `Submarine External to Pressure Hull Curve'. Setup described on Page 7.
Doc.# 005-0005135 Rev. A 03/18/09 Page 5
www.synqor.com
MQME-28E-P Current: 20A
Technical Specification
BASICOPERATIONANDFEATURES
TheMQME-28E-Pisamulti-stagedifferential-modeandcommonmode passive EMI filter designed to interface a power source with one or more SynQor DC/DC converters (or other loads that create EMI).Eachstageofthisfilteriswelldampedtoavoidresonances andoscillations,andonlyX7Rmulti-layerceramiccapacitorsare used.Figure1showsthetypicaldifferentialandcommon-mode attenuation provided by this filter when the source impedance is 50 to chassis ground on each input line. TheMQME-28E-PEMIfilterincludesalargebulkcapacitor(also X7R)withaseriesdampingresistortocorrectfortheunstabilizing effect of a converter's negative input resistance. A white paper discussing this negative input resistance and the need for corrective damping can be found on the SynQor website (see Input System Instabilityapplicationnote).Figure2showsthemagnitudeofthe filter's output impedance when the filter input is connected to a stiff voltage source. The input voltage surge and spike compliance matrix shown on Page 8 displays the worst case requirements listed in various 28V Military (Vehicle and Aircraft) and Civil Aircraft standards. The MQME-28E-P EMIfilter is designed to handle all of the short duration voltage spike requirements of these standards (with certain assumptions regarding DEF-STAN 61-5). Some of the long duration voltage surge requirements remain within the 50V maximum transient rating of a SynQor MQFL-28 DC/DC converter.Theothersrequirethetransientsuppressioncircuitryof an MQME-28-T EMIfilter to protect the converter from an overvoltage condition. If MQFL-28E or MQFL-28VE converters are used,voltagesurgesashighas80Vcanbetoleratedwithoutthe need for this transient suppression circuitry. When used with SynQor's DC/DC converters, the MQME-28E-P EMI filter is designed to pass all of the relevant MIL-STD-461C/ D/Erequirementstotheirmoststringentlimits.TheMIL-STD-461 ComplianceMatrixTableonPage7liststheserequirementsand describesthesetupusedtopassthem.Figures3-6showresults from selected conductive and radiated emissions tests. The filter is also designed to pass the waveform types and applications specified in RTCA/DO-160E Section 22 (Lightning Induced Transient Susceptibility) to Level 4 (some waveforms/ applications require the MQME-28-T filter and/or external transient suppression circuitry). The Section 22 Compliance Matrix Table on Page 9 lists these waveforms and applications and describes the setup used to pass them. A typical application would place the MilQor filter close to the input of the DC/DC converter, with the cases of the filter and the converter connected together through a ground plane. Both cases are electrically conductive, so connection to the cases can be made with the fasteners used to secure the device. Do not connect the outputs of multiple MQME-28E-P filters in parallel. Connecting filters in this manner may result in slightly unequalcurrentstoflowinthepositiveandreturnpathsofeach filter. These unequal currents may cause the internal commonmode chokes to saturate and thus cause degraded common-mode rejection performance.
Product # MQME-28E-P
Phone 1-888-567-9596
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Doc.# 005-0005135 Rev. A
03/18/09
Page 6
MQME-28E-P Current: 20A
Technical Specification
MIL-STD-461COMPLIANCEMATRIX
ThistableshowstheMIL-STD-461requirements/limitsthathavebeenmet*byastand-alonesetupcomprisedof: - MQME-28E-PFilter -MQFL-28-05SDC/DCConverter -120WResistiveLoad -MetalChassisPlane
*Susceptibilityrequirements/limitsaredeemedtohavebeenmetaslongastransientdeviationsintheconverter'soutputvoltage remainwithin10%ofitsinitialvalue. Met with metal screen shield covering the filter, converter, and resistive load.
Product # MQME-28E-P
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Doc.# 005-0005135 Rev. A
03/18/09
Page 7
MQME-28E-P Current: 20A
Technical Specification
RTCA/DO-160ESECTION22COMPLIANCEMATRIX
(LIGHTNINGINDUCEDTRANSIENTSUSCEPTIBILITY)
ThefollowingtableshowstheRTCA/DO-160Section22requirementsthathavebeenmet*byastand-alonesetupcomprisedof: - MQME-28E-P(or-T)Filter -MQFL-28-05SDC/DCConverter -ResistiveLoad -MetalChassisPlane -UnshieldedPowerCableBundle
*Requirementisdeemedtohavebeenmetaslongastransientdeviationsintheconverter'soutputvoltageremainwithin10%ofits initial value. ForthesewaveformsatLevel3andabove,anexternaltransientsuppressorofsufficientenergyratingmustplacedacrossthefilter's inputpinstokeepthedifferentialtransientinputvoltagebelow+200V/-50V.Negativepolaritywaveformsmaycausepowerflowtothe converter to be interrupted long enough to cause a graceful shutdown and restart of the converter. Also, the reverse voltage protection featureofthe-Tfilterisrequiredtoprotecttheconverter(butnotthefilter)fromnegativepolaritywaveform. ** For this waveform at a Level 4 and above, external transient suppressors of sufficient energy rating must be added between the filter's input power pins and its case to keep the common-mode transient input voltage below +800V.
Product # MQME-28E-P
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Doc.# 005-0005135 Rev. A
03/18/09
Page 8
MQME-28E-P Current: 20A
Technical Specification
VOLTAGESURGEANDSPIKECOMPLIANCEMATRIX
ThesetablesshowtheVoltageSurgeandSpikerequirements/limitsthathavebeenmet*byastand-alonesetupcomprisedof: - MQME-28E-P(or-T)Filter -MQFL-28-05SDC/DCConverter -120WResistiveLoad -MetalChassisPlane
*Surge/spikerequirements/limitsaredeemedtohavebeenmetaslongastransientdeviationsintheconverter'soutputvoltage remainwithin10%ofitsinitialvalue. FortheDEFSTAN61-5specification: 1)Negativesurgesrequirereversevoltageprotectioncircuitrytoprotecttheconverter(butnotthefilter)fromanegativeinput. This circuitry is included in the MQME-28-TandMQME-28-HTfiltersbutnottheMQME-28E-Pfilter. 2)Thenegativesurgesmaycausetheconvertertoshutdownunlessadditionalholdupcapacitanceisincluded. 3)Maximumspikevoltagesareassumedtolast<1s.
Product # MQME-28E-P Phone 1-888-567-9596 www.synqor.com Doc.# 005-0005135 Rev. A 03/18/09 Page 9
MQME-28E-P Current: 20A
Technical Specification
CONSTRUCTION AND ENVIRONMENTAL STRESS SCREENING OPTIONS
MilQorconvertersandfiltersareofferedinfourvariationsofconstructiontechniqueandenvironmentalstressscreeningoptions.The threehighestgrades,C,ES,andHB,alluseSynQor'sproprietaryQorSealTMHi-RelassemblyprocessthatincludesaParylene-Ccoating ofthecircuit,ahighperformancethermalcompoundfiller,andanickelbarriergoldplatedaluminumcase.TheB-gradeversionuses a ruggedized assembly process that includes a medium performance thermal compound filler and a black anodized aluminum case. Each successively higher grade has more stringent mechanical and electrical testing, as well as a longer burn-in cycle. The ES- and HB-Gradesarealsoconstructedofcomponentsthathavebeenprocuredthroughanelementevaluationprocessthatpre-qualifieseach new batch of devices.
Note:Sincethesurfaceoftheblackanodizedcaseisnotguaranteedtobeelectricallyconductive,astarwasherorsimilardevice should be used to cut through the surface oxide if electrical connection to the case is desired.
Product # MQME-28E-P
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Doc.# 005-0005135 Rev. A
03/18/09
Page 10
MQME-28E-P Current: 20A
Technical Specification
0.093 [2.36] 1 2 3 4 5 6
+VIN +VIN +VIN IN RTN IN RTN IN RTN +VOUT +VOUT
MQME-28E-P-Y-HB
EMI Filter 28V 20A 320W
MADE IN USA
+VOUT OUT RTN OUT RTN OUT RTN
S/N 0000000 D/C 3205-301 CAGE 1WX10
12 11 10 9 8 7
0.250 [6.35] 1.50 [38.10] 1.260 [32.00] 0.200 [5.08] TYP. NON-CUM. 0.040 [1.02] PIN 0.128 [3.25] 0.050 [1.27] 0.220 [5.59] 0.228 [5.79]
2.50 [63.50] 2.76 [70.10] 3.00 [76.20] 2.96 [75.2]
0.390 [9.91]
Case X
0.093 [2.36] 1 2 3 4 5 6
+VIN +VIN +VIN IN RTN IN RTN IN RTN +VOUT +VOUT
MQME-28E-P-U-HB
EMI Filter 28V 20A 320W
MADE IN USA
+VOUT OUT RTN OUT RTN OUT RTN
S/N 0000000 D/C 3205-301 CAGE 1WX10
12 11 10 9 8 7
0.250 [6.35] 1.260 [32.00] 1.50 [38.10] 0.200 [5.08] TYP. NON-CUM.
0.040 [1.02] PIN 0.128 [3.25] 0.42 [10.7] 0.050 [1.27] 0.220 [5.59]
2.50 [63.50] 2.76 [70.10] 3.00 [76.20] 2.80 [71.1]
0.390 [9.91] NOTES
1) 2) 3) 4) 5) 6) Pins 0.040" (1.02mm) diameter Pins Material: Copper Finish: Gold over Nickel plate All dimensions in inches (mm) Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm) x.xxx +/-0.010 in. (x.xx +/-0.25mm) Weight: 2.8 oz (78.5 g) typical Workmanship: Meets or exceeds IPC-A-610C Class III Print Labeling on Top Surface per Product Label Format Drawing
Case U
PIN DESIGNATIONS Pin Function 1 2 3 4 5 6 Positive input Positive input Positive input Input return Input return Input return Pin Function 7 8 9 10 11 12 Output return Output return Output return Positive output Positive output Positive output
Product # MQME-28E-P
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Doc.# 005-0005135 Rev. A
03/18/09
Page 11
MQME-28E-P Current: 20A
Technical Specification
1.15 [29.21] 0.250 [6.35] TYP 1 2 3 4 5 6
+VIN +VIN +VIN IN RTN IN RTN IN RTN
0.300 [7.62] 0.140 [3.56] 0.250 [6.35] 0.200 [5.08] TYP. NON-CUM.
+VOUT +VOUT
MQME-28E-P-X-HB
EMI Filter 28V 20A 320W
MADE IN USA
+VOUT OUT RTN OUT RTN OUT RTN
S/N 0000000 D/C 3205-301 CAGE 1WX10
12 2.00 11 [50.80] 10 1.50 9 [38.10] 8 1.750 7 [44.45]
0.040 [1.02] PIN 0.050 [1.27] 0.220 [5.59]
1.750 [44.45] 2.50 [63.50] 2.96 [75.2]
0.375 [9.52] 0.228 [5.79] 0.390 [9.91]
Case Y Case W (variant of Y)
0.200 [5.08] TYP. NON-CUM.
0.250 [6.35]
Case Z (variant of Y)
0.200 [5.08] TYP. NON-CUM.
0.250 [6.35]
0.040 [1.02] PIN 0.220 [5.59] 0.050 [1.27] 0.390 [9.91] 0.525 [13.33] 2.80 [71.1] NOTES
1) 2) 3) 4) 5) 6) Pins 0.040" (1.02mm) diameter Pins Material: Copper Finish: Gold over Nickel plate All dimensions in inches (mm) Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm) x.xxx +/-0.010 in. (x.xx +/-0.25mm) Weight: 2.8 oz (78.5 g) typical Workmanship: Meets or exceeds IPC-A-610C Class III Print Labeling on Top Surface per Product Label Format Drawing
Phone 1-888-567-9596 www.synqor.com
0.040 [1.02] PIN 0.420 [10.7] 0.050 [1.27] 0.220 [5.59] 2.80 [71.1] 0.525 [13.33] 0.390 [9.91]
PIN DESIGNATIONS Pin Function 1 2 3 4 5 6 Positive input Positive input Positive input Input return Input return Input return Pin Function 7 8 9 10 11 12 Output return Output return Output return Positive output Positive output Positive output
Page 12
0.36 [9.2]
Product # MQME-28E-P
Doc.# 005-0005135 Rev. A
03/18/09
MQME-28E-P Current: 20A
Technical Specification
MilQor FAMILY MATRIX
The table below shows the array of MilQor filters available. When ordering SynQor filters, please ensure that you use the completepartnumberaccordingtothefollowingPartNumberingSystemtable.Contactthefactoryforotherrequirements. Product Continuous Family Input Designator Voltage
MQME-28 MQME-28E MQME-270 MQME-270E 40V 70V 400V 530V
(Amperage)
Power
Rating
(see table below)
Version
Features Available (In Addition to Passive Filter Components)
Enable Pass-Through Circuitry Transient Suppression Circuitry Soft-Start Circuitry Reverse Polarity Protection Circuitry Power Interrupt Hold-Up Capacitor Pre-Charger
320W (20A) 320W (20A) 320W (2A) 320W (2A)
P T HT P R HR
PART NUMBERING SYSTEM
The part numbering system for SynQor's MilQor EMI filters follows the format shown in the table below.
Model Name
Input Voltage Range
28 28E
Version
P T HT P R HR
Package Outline/Pin Configuration
U X Y W Z
Screening Grade
B C ES HB
MQME 270 270E
Example: APPLICATION NOTES
MQME-28E-P
A variety of application notes and technical white papers can be downloaded in pdf format from the SynQor website.
PATENTS
SynQor holds the following patents, one or more of which might apply to this product: 5,999,417 6,594,159 6,927,987 7,119,524 6,222,742 6,731,520 7,050,309 7,269,034 6,545,890 6,894,468 7,072,190 7,272,021 6,577,109 6,896,526 7,085,146 7,272,023
Contact SynQor for further information:

Phone: Toll Free: Fax: E-mail: Web: Address:
978-849-0600 888-567-9596 978-849-0602 power@synqor.com www.synqor.com 155SwansonRoad Boxborough,MA01719 USA
Phone 1-888-567-9596
Warranty SynQor offers a two (2)yearlimitedwarranty.CompletewarrantyinformationislistedonourwebsiteorisavailableuponrequestfromSynQor. Information furnished by SynQor is believed to be accurate and reliable. However,noresponsibilityisassumedbySynQorforitsuse,norforany infringements of patents or other rights of third parties which may result fromitsuse.Nolicenseisgrantedbyimplicationorotherwiseunderany patent or patent rights of SynQor.
Product # MQME-28E-P
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Doc.# 005-0005135 Rev. A
03/18/09
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