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MIL-STD-461 EMI INPUT FILTER FGDS-2A-50V up to 2A CURRENT
Hi-Rel Hi-Rel Grade Grade
2A EMI Filter Module 9 to 50 VDC Input Range MIL-STD-461C/D/E Compliant
* To comply with MIL-STD-461D/E power leads : * CE 102 : Emission requirement over 10KHz to 10MHz * CS 101 : Susceptibility requirement over 30Hz to 150KHz * CS 114 : Susceptibility requirement over 10KHz to 400MHz * CS 115 : Susceptibility requirement for spikes * To comply with MIL-STD-461C power leads : * CE 03 : Emission requirement over 15KHz to 50MHz * CS 01 : Susceptibility requirement over 30Hz to 50KHz * CS 02 : Susceptibility requirement over 15KHz to 400MHz * CS 06 : Susceptibility requirement for spikes * To comply with DO-160C/D/E power lines : * Conducted emission requirement over 15KHz to 30MHz * Conducted susceptibility requirement over 10KHz to 400MHz * Susceptibility requirement for induced transients * Temperature range : * operating temperature : -40C/+105C case * storage temperature : -55C/+125C The GAIA Converter filter module FGDS-2A-50V provides a state-of-the-art product to fulfill Electromagnetic Interferences (EMI) requirements for Aerospace/Defence applications. The FGDS-2A-50V complies with major standards including : * the US MIL-STD-461 rev C, rev D and rev E * the international DO-160 rev C, rev D and rev E In particular, the filter module is compliant with the following requirements of MIL-STD-461C/D/E standards : * MIL-STD-461D/E Part 2. & 3. requirements : * Conducted Emission (CE) * CE102, power leads, emission over 10KHz to 10MHz, basic curve * Conducted Susceptibility (CS) * CS101, power leads, frequency 30Hz to 150KHz, curve #1 * CS114, bulk cable injection, frequency 10KHz to 400MHz, * CS115, spikes, bulk cable injection, calibrated spike * DO-160-C/D/E requirements : * Conducted Emission (CE) * Section 21 power lines, emission over 15KHz to 30MHz, category B, AZ & LMH * Conducted Susceptibility (CS) * Section 20 power lines, frequency 10KHz to 400MHz In addition, this filter withstands in a transparent state without dammage the transient and spike requirements of : * MIL-STD-704A with 80V/100ms & 600V/10s * MIL-STD-1275B with 100V/50ms & 250V/70s The FGDS-2A-50V is suitable for all GAIA Converter DC/DC converters and architecture * from 4W up to 50W power * up to 2A input current * up to 50V permanent input voltage.
1-General
* MIL-STD-461C Part 2. & 3. requirements : * Conducted Emission (CE) * CE03, power leads, emission over 15KHz to 50MHz, narrowband, Class A1 * CE03, power leads, emission over 15KHz, broadband, Class A1 curve# 1&2 * Conducted Susceptibility (CS) * CS01, power leads, frequency over 30Hz to 50KHz, class A1, consult factory for criteria * CS02, power leads, frequency 15KHz to 400MHz, class A1 * CS06, power leads, spike #1
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2-Product Selection
FGDS-2A-50V (/T) and/or (/S)
(/T) : option for -55C start up operating temperature. (/S) : option for screening and serialization
REDEFINING THE SOURCE OF POWER
(c) Gaia Converter FC05-050.03/08 Revision B
For locations, phone, fax, E-Mail see back cover
EMI Filter FGDS-2A-50V 3- Electrical Specifications
Data are valid at +25C, unless otherwise specified.
Parameter Input Nominal input voltage Full temperature range Nominal VDC Conditions Limit or typical Units
Hi-Rel Grade
FGDS-2A-50V
28
Permanent input voltage range (Ui)
Full temperature range
Min. - Max.
VDC
9 - 50
Transient input voltage Output Output power
Full load
Maximum Maximum
VDC/ms VDC/ms
80/100 100/50
Full temperature range Ui min. to max. Full temperature range Ui min. to max. Maximum output current
Maximum
W
50
Permanent output current
Min. - Max.
A
0-2
Power dissipation
Maximum
W
1
DC resistance General Electrical strengh test voltage
Maximum output current
Min. - Max.
mOhm
120 - 140
Case to any pin Gnd pin to any other pin Conditions Gf Conditions AIC
Minimum Minimum @40C @85C @40C @85C
VDC VDC Hours Hours Hours Hours
500 500 23 000 000 6 000 000 12 300 000 3 300 000
Reliability data MTBF according MIL-HDBK-217F EMI compliance
6
Conducted emission
Power leads Power leads Power lines Power lines
MIL-STD-461C MIL-STD-461D/E DO-160C catA, B & Z DO-160D/E cat B & LMH
CE03 CE102 Section 21 Section 21
See section 6 See section 6 / /
Spikes & surges withstands
50 Ohm impedance 0.1 Ohm impedance 50 Ohm impedance 15 mJ energy content 50 Ohm impedance
MIL-STD-461C MIL-STD-461C MIL-STD-461D/E MIL-STD-1275B DO-160C/D/E DEF STANAG
CS06 : 600V/10s CS06 : 200V/150ns CS115 Level 250V/70s Section 22 : 600V/10s
Compliant Compliant Compliant Compliant Compliant Compliant
(c) Gaia Converter FC05-050.03/08 Revision B
2 For locations, phone, fax, E-Mail see back cover
EMI Filter FGDS-2A-50V 4- EMI Filter Electrical Schematics
The GAIA Converter FGDS-2A-50V is suitable for all GAIA Converter DC/DC converters and combinations : * from 4W up to 50W total input power and up to 2A input current * up to 50V permanent input voltage and up to 100V transient input voltage during 50ms
Hi-Rel Grade
4-1 EMI Filter Electrical Schematics in Front of MGDM-04/10/18/20/26 & CGDM Series
The GAIA Converter FGDS-2A-50V can be used directly in front of any DC/DC converter and combinations using of MGDM-04, MGDM-10, MGDM-18, MGDM-20, MGDM-26 and CGDM series. For better EMI performance and stability purpose, GAIA Converter recommends to use a RC cell (see section 4-4) together with a common mode noise capacitance Cc (10nF typical) connected between Gin and Gout pins of each DC/DC converter.
VI Vo VI Vo
EMI input filter FGDS-2A-50V
GI Gnd Go
R*
MGDM-series
C*
GI
Go
Cc
4-2 EMI Filter Electrical Schematics in front of MGDM-25, MGDM-35 Series
The GAIA Converter FGDS-2A-50V can be used by adding an LC cell in front of any DC/DC converter and combinations of MGDM-25, MGDM-35 series. For better EMI performance and stability purpose, GAIA Converter recommends to use a RC cell (see section 4-4) and a LC cell (L=4.7H, C=4.7F) together with a common mode noise capacitance Cc (10nF typical) connected between Gin and Gout pins of each DC/DC converter.
LC cell VI Vo VI Vo
EMI input filter FGDS-2A-50V
GI Gnd Go
R*
MGDM-series
C*
GI
Go
6
Cc
4-3 EMI Filter Electrical Schematics in Front of Pre-regulator PGDS Series :
The GAIA Converter FGDS-2A-50V can be used directly in front of pre-regulators PGDS series with any DC/DC converter and combinations of MGDM-04, MGDM-10, MGDM-18, MGDM-20, MGDM-26 and CGDM series. For better EMI performance and stability purposes, GAIA Converter recommends to use a RC cell (see section 4-4) together with a common mode noise capacitance Cc (10nF typical) connected between Gin and Gout pins of each converter.
Vimes VI Vo VI Vo VI Vo
EMI input filter FGDS-2A-50V
GI Gnd Go
R*
PGDS50
C*
MGDM-series
GI On/off
Go
GI
Go
Cc
(c) Gaia Converter FC05-050.03/08 Revision B
3 For locations, phone, fax, E-Mail see back cover
EMI Filter FGDS-2A-50V 4- EMI Filter Electrical Schematics (continued)
4-4 R*C* Network Discussion
Hi-Rel Grade
The RC damping network is a network used for stability purposes in negative input impedance systems such as DC/DC converters. R and C is a network whose function is to lower the filter's output impedance. The value of the capacitor C strongly depends on the application's conditions (input voltage range and total power drawn from the source) as well as the standards that the equipment has to meet MIL-STD-461C, or D/E, ... this because measurements method (LISN) differs from one standard to another affecting the C value. DC/DC converters are negative input impedance systems whereas a filter composed of passive elements displays a positive output impedance to the converter. To ensure the stability of the whole system "LISN + input Filter + DC/DC converters", the filter output impedance must be kept below the converter's input impedance, which is given by the following formula :
Vin2
Vin2 x h
Zin =
____
=
_________
Pin
Po
where : Vin is the converter input voltage, Pin is the converter input power, Po is the converter output power
h is the efficiency of the converter.
As it can be seen from the preceding equation, the worst case for system's stability is at Vinmin, so this is the condition which should be considered for the filter design.
As the filter is made of low ESR inductors and ceramic capacitors, it has an important Q which causes a sharp increase of the filter's output impedance at the resonant frequency and leads to a violation of the stability criteria, causing the system to break into oscillations. Consequently, the values of C and R have to be adjusted to dampen sufficiently the filter's resonance and make its output impedance lower than the converter's input impedance (a 10dB margin between both values is recommended). The following formula can be used to determine the capacitor value :
( LLISN + 4 .10-6 ) x Po x k C>
_________________________________
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Vin2 x (R + RL)
Where : LLISN is the LISN inductor value Po is the filter output power R is the capacitor esr (equivalent serial resistor) of C RLis the input bus equivalent resistor. It is the sum of the line + LISN network + input connector resistors k is the stability margin factor. This factor is given by the following formula : Stability margin (dB) = 20 log (k) Vin is the converter input voltage
(c) Gaia Converter FC05-050.03/08 Revision B
4 For locations, phone, fax, E-Mail see back cover
EMI Filter FGDS-2A-50V 5- MIL-STD-461C/D/E Conducted Emission Tests Set-Up
5-1 MIL-STD-461C Measurement Method
The conducted noise emission measurement method of MIL-STD-461C is described in MILSTD-462C standard. The DUT (Device Under Test) is powered thru a 1 meter lengh parallel wire. One end is terminated with the DUT and the other end is terminated with 10F capacitors to the ground plane. The measurements are made with a current probe, the unit of measurement being dBA.
To 50 ohms input
Hi-Rel Grade
+28V in Current probe 10F
+28V out
DUT
10F Return in Return out
1m
5-2 MIL-STD-461D/E Measurement Method
The conducted noise emission measurement method is described in the MIL-STD-461D/E standards. The DUT (Device Under Test) is powered thru a 2 meters length parallel wire. One end is terminated with the DUT and the other end is terminated with LISN networks. The measurements are made with a measurement receiver, the unit being dBV
6
+28V out
+28V in
LISN
To 50 ohms input receiver To 50 ohms termination
DUT
LISN
Return in Return out
2m
(c) Gaia Converter FC05-050.03/08 Revision B
5 For locations, phone, fax, E-Mail see back cover
EMI Filter FGDS-2A-50V 6- MIL-STD-461C & MIL-STD-461E Conducted Emission Level Results
MIL-STD-461C : MGDS-O4-H-C with FGDS-2A-50V
Hi-Rel Grade
MIL-STD-461E : MGDS-O4-H-C with FGDS-2A-50V
MIL-STD-461C : MGDS-10-J-C with FGDS-2A-50V
MIL-STD-461E : MGDS-10-J-C with FGDS-2A-50V
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MIL-STD-461C : 3 x MGDS-10-J-C with FGDS-2A-50V MIL-STD-461E : 3 x MGDS-10-J-C with FGDS-2A-50V
(c) Gaia Converter FC05-050.03/08 Revision B
6 For locations, phone, fax, E-Mail see back cover
EMI Filter FGDS-2A-50V 6- MIL-STD-461C & MIL-STD-461E Conducted Emission Level Results
MIL-STD-461C : MGDS-26-H-C with FGDS-2A-50V
Hi-Rel Grade
MIL-STD-461E : MGDS-26-H-C with FGDS-2A-50V
MIL-STD-461C : MGDS-35-H-C with FGDS-2A-50V
MIL-STD-461E : MGDS-35-H-C with FGDS-2A-50V
6
(c) Gaia Converter FC05-050.03/08 Revision B
7 For locations, phone, fax, E-Mail see back cover
EMI Filter FGDS-2A-50V 7- Environmental Qualifications
The modules have been subjected to the following environmental qualifications.
Hi-Rel Grade
Characteristics Climatic Qualifications Life at high temperature
Conditions
Severity
Test procedure
Duration Temperature / status of unit Altitude level C Duration Climb up Stabilization Status of unit Number of cycle Cycle duration Relative humidity variation Temperature variation Status of unit Damp heat Temperature Duration Status of unit Temperature Concentration NaCl Duration Status of unit Number of cycles Temperature change Transfert time Steady state time Status of unit Number of shocks Temperature change Transfert time Steady state time Status of unit
Test D : 1.000 Hrs @ 105C case, unit operating @ 125C ambient, unit not operating 40.000 ft@-55C 30 min. 1.000 ft/min to 70.000 f@-55C, 30 min. unit operating 10 Cycle I : 24 Hrs 60 % to 88 % 31C to 41C unit not operating 93 % relative humidity 40C 56 days unit not operating 35C 5% 48 Hrs unit not operating 200 -40C / +85C 40 min. 20 min. unit operating 100 -55C / +105C 10 sec. 20 min. unit not operating
MIL-STD-202G Method 108A
Altitude
MIL-STD-810E Method 500.3
Humidity cyclic
MIL-STD-810E Method 507.3
Humidity steady
MIL-STD-202G Method 103B
Salt atmosphere
MIL-STD-810E Method 509.3
Temperature cycling
MIL-STD-202A Method 102A
Temperature shock
MIL-STD-202G Method 107G
Mechanical Qualifications Number of cycles Frequency / amplitude Frequency / acceleration Duration Status of unit Number of shocks Peak acceleration Duration Shock form Status of unit Number of bumps Peak acceleration Duration Status of unit 10 cycles in each axis 10 to 60 Hz / 0.7 mm 60 to 2000 Hz / 10 g 2h 30 min. per axis unit not operating 3 shocks in each axis 100 g 6 ms 1/2 sinusoidal unit not operating 2000 bumps in each axis 40 g 6 ms unit not operating
Vibration (Sinusoidal)
MIL-STD-810D Method 514.3
6
Shock (Half sinus)
MIL-STD-810D Method 516.3
Bump (Half sinus)
MIL-STD-810D Method 516.3
(c) Gaia Converter FC05-050.03/08 Revision B
8 For locations, phone, fax, E-Mail see back cover
EMI Filter FGDS-2A-50V 8- Dimensions
Dimension are given in mm (inches). Tolerance : +/- 0,2 mm (+/- 0.01 ") unless otherwise indicated. Weight : 10 grams (0.3 Ozs) max.
Hi-Rel Grade
35,50
(1.4")
20,50
(0.80")
10,20
(0.4")
10,70
(0.42")
5 min
(0,20")
7,62
(0.30")
15,24 27,94
(1.10") (0.60")
Pin dimensions : O 0,73 mm (0.029 ")
plastic case black solder plated pin
9- Product Marking
Upper face : Company logo, location of manufacturing. Side face : Module reference, option, date code : year and week of manufacturing.
10- Connections
Pin
2 3 4
6
Single + Input (Vi) + Output (Vo) Ground (Gnd) - Output (Go) - Input (Gi) 1 2 3 4 5
1
5
Bottom view
(c) Gaia Converter FC05-050.03/08 Revision B
9 For locations, phone, fax, E-Mail see back cover
For more detailed specifications and applications information, contact :
International Headquarters Marketing and Sales department GAIA Converter - France Address : B.P. 26 - 33186 LE HAILLAN - FRANCE Tel. : + (33)-5-57-92-12-80 Fax : + (33)-5-57-92-12-89 North American Headquarters GAIA Converter Canada, Inc Address : 6611 Thimens ST-LAURENT, QUEBEC - CANADA H4S 1W2 Tel. : (514)-333-3169 Fax : (514)-333-4519
6
Printed in France by GAIA Converter Gaia Converter FC05-050.03/08 Revision B. Graphisme : Philippe Clicq
Represented by :
Information given in this datasheet is believed to be accurate and reliable. However, no responsibility is assumed for the consequence of its use nor for any infringement of patents or other rights of third parties which may result from its use. These products are sold only according to GAIA Converter general conditions of sale, unless otherwise confirmed by writing. Specifications subject to change without notice.

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