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FMSA SerieS™ eMi Fil ter The Interpoint® FMSA-461 EMI filter modules have been designed as a companion for Interpoint MSA Series™ flyback dc -dc power converters. Multiple MSA power converters can be operated from a single filter provided the total power line current does not exceed the maximum current rating of the filter. The FMSA filter will reduce the MSA’s power line reflected ripple current to within the limit of MIL-STD-461C, Method CE03, as shown in the example of Figure 8 on page 9. The FMSA is fabricated using thick film hybrid techno logy and is sealed in a metal package for military , aerospace and other applications requiring EMI suppression. See case A1, Figure on page 1 1 for dimensions. The filter uses only ceramic capacitors for reliable high temperature operation. OperatiOn The MSA power converter has an internal 2 µF capacitor across its input power terminals. See Figure 1 on page 2. When the MSA and FMSA filters are used together, this capacitor becomes part of the filter and forms its final LC output section. When 2 or
3 MSAs are used with a single filter, this capacitor becomes 4 µF
or 6 µF respectively, rather than 2 µF, improving the rejection vs. frequency. The FMSA filter can also be used with other types of Interpoint power converters (MHF Series™, MHF+ Series™ and MHE Series™) to comply with CE03. For MHF, MHF+ and MHE models, the converter has an LC type line filter such that an inductor is seen looking into its positive input terminal. For these converters, it is necessary to terminate the filter with a capacitor to insure unconditionally stable operation. A capacitor across the filter output terminals of greater than 4 µF or the optional damping circuit shown on the connection diagram will be adequate for stable operation. No capacitor is required for the MSA Series models. OptiOnal Damping CirCuit The optional damping circuit (Figure 2 on page 2) can be used to prevent filter overshoot caused by MIL-STD-704A volt, or other, transients having rise times of less than 200 microseconds. This damping can be alternately provided with a 1.50 Ω resistor in series with the filter’s positive input where the additional line loss can be tolerated. For transients with rise times of greater than 200 microseconds, there is no overshoot and the damping circuit is not required. layOut requirements The case of the filter must be connected to the case of the converter through a low impedance connection to minimize EMI. FeAture S
- Attenuation 50 dB (FMSA) at 500 kHz 55 dB (FMGA) at 500 kHz
- Small footprint FMSA 0.79 in 2 (5.1 cm2) FMGA 0.89 in2 (5.7 cm2)
- Operating temperature -55° to +125°C
- Nominal 28 volts input, 0 to 50 volts operation
- u p to 0.8 amps throughput current
- Compliant to M il t D-461C C e -03
- Compatible with M il t D-704 A- e
28 VDC power bus
ThroughpuT CurrenT (A) FMSA-461 0.8 FMGA-461 0.8 Crane Aerospace & Electronics Power Solutions FMSA/FMGA eMi i nput Filters Crane Aerospace & Electronics Power Solutions – Interpoint Products 10301 Willows Rd. NE, Redmond, WA 98052 +1 425-882-3100 • power@crane-eg.com Page 1 of 14 28 VOlt iN put - 0.8 AM p FMSA/FMGA Rev AA - 2015.12.15
FMGA SerieS™ eMi Fil ter The Interpoint surface mount FMGA-461 EMI filter has been designed to work with Interpoint surface mount MGA Series™ and MGH Series™ dc-dc converters. Multiple MGA or MGH converters can be operated from a single FMGA filter provided the total power line current does not exceed the filter’s maximum current rating. The FMGA filter will reduce the converter’s power line reflected ripple current to within the limit of MIL-STD-461C, Method CE03 as shown in Figure 10 through Figure 14 on page 10. The filter uses only ceramic capacitors for reliable high- temperature operation. COnneCtiOn anD OperatiOn Where more than one pin has the same designation (e.g. pins 7, 8, and 9 are Positive Output), all of those pins must be connected for output performance to meet the specifications. The MGA Series has an internal 2 µF capacitor on its input terminals and the MGH Series has an internal 0.47 µF capacitor across its input power terminals. See Figure 3 on page 4. When the MGA or MGH converters are used with the FMGA filter, this capacitor becomes part of the filter and forms its final LC output section. When 2 or 3 MGA or MGH converters are used with a single filter, this capacitor becomes larger, improving the rejection versus frequency. transient Damping The optional damping circuit shown in Figure 4 on page 4 will prevent filter overshoot caused by 80 volt transients with rise times of less than 200 microseconds. The damping circuit can be used with a 1.50 Ω resistor in series with the filter’s positive input where the additional line loss can be tolerated. For transients with rise times of greater than 200 microseconds, there is no overshoot and the damping circuit is not required. surFaCe mOunt paCkage The FMGA EMI filter can be surface mounted with pick-and- place equipment or manually. It is recommended that the case be attached with flexible epoxy adhesive or silicone which is thermally conductive (>1 watt /meter/°K). Internal components are soldered with SN96 (melting temperature 221°C) to prevent damage during reflow. Maximum reflow temperature for surface mounting the FMGA filter is 220°C for a maximum of 30 seconds. SN60, 62, or 63 are the recommended types of solder. Hand soldering should not exceed 300°C for 10 seconds per pin. The hermetically sealed metal cases are available in two different lead configurations. For case dimensions and options, see Case B ,Figure 16 on page 12 and the solder pad layout of Figure 17 on page 12. layOut requirements The case of the filter must be connected to the case of the converter through a low impedance connection to minimize EMI. Crane Aerospace & Electronics Power Solutions FMSA/FMGA eMi i nput Filters 28 VOlt iN put - 0.8 AM p www.craneae.com/interpointcom Page 3 of 14 FMSA/FMGA Rev AA - 2015.12.15
indicate pin one. 1 3 8 4 6 5 BOTTOM VIEW FMSA For dimensions, see case A1, Figure 15 on page 1 Figure 5: Fmsa pin Out To meet specified performance, all pins must be connected except “No Connection” pins. TOP VIEW FMGA Differently colored glass bead around pin one or dimple in header (bottom or side of case) indicates pin one. Cover marking is oriented with pin one at the upper right corner. For dimensions and the gull-wing lead option, see case B Figure 16 on page 12. For solder pad layout, see case B, Figure 17 on page 12 Figure 6: Fmga pin Out piN Out FMSA pin Designation
1 Positive Input
2, 3 Positive Output
4 Case Ground
5, 6 Output Common
7 Input Common
8 Case Ground
1, 2 Positive Input 3, 4 No connection 5, 6 Case Ground 7, 8, 9 Positive Output 10, 1 1, 12 Output common 13, 14 Case Ground 15, 16 No connection 17, 18 Input Common piNS NOt iN uSe FMSA Case Ground (4) Connect pin to case for optimum filtering. piNS NOt iN uSe FMGA Case Ground (5, 6, 13, 14) Connect pins to case for optimum filtering. No connection (3, 4, 15, 16) Connect pins to case for optimum filtering. table 1: Fmsa pin Out table 2: Fmsa pins nOt in use table 3: Fmga pin Out table 4: Fmga pins nOt in use Crane Aerospace & Electronics Power Solutions FMSA/FMGA eMi i nput Filters 28 VOlt iN put - 0.8 AM p www.craneae.com/interpointcom Page 5 of 14 FMSA/FMGA Rev AA - 2015.12.15
(Standard screening has no designator in this position.) DlA DrAWiNG NuMBerS DLA DrAwing (5915) FMSA SiMiLAr pArT 96003-01HXX FMSA-461/883 For exact specifications for a DLA Drawing product, refer to the DLA Drawing. DLA Drawings can be downloaded from: http://www.landandmaritime.dla.mil/programs/smcr MODel NuMBer OptiONS To DeTerMine The MoDeL nuMber enTer one opTion FroM eACh CATegory in The ForM beLow. CAte GO ry Base Model Screening 1 OptiONS FMSA-461 (standard, leave blank) ES 883 Fill iN FOr M OD el # FMSA-461 / Notes 1. Screening: For standard screening leave the screening option blank. For other screening options, insert the desired screening level. For more information see Table 1 on page 20 and Table 12 on page 21. table 5: mODel numbering key table 6: Dla Drawing number CrOss reFerenCe table 7: mODel number OptiOns Crane Aerospace & Electronics Power Solutions FMSA/FMGA eMi i nput Filters 28 VOlt iN put - 0.8 AM p www.craneae.com/interpointcom Page 6 of 14 FMSA/FMGA Rev AA - 2015.12.15
(Standard screening has no designator in this position.) Gull Wing Lead Option (Straight leaded filter has no designator in this position.) DlA DrAWiNG NuMBerS DLA DrAwing (5915) FMgA S iMiLAr pArT 96003-01HYX FMGA-461/883 96003-01HZA FMGA-461Z/883 For exact specifications for a DLA Drawing product, refer to the DLA Drawing. DLA Drawings can be downloaded from: http://www.landandmaritime.dla.mil/programs/smcr MODel NuMBer OptiONS To DeTerMine The MoDeL nuMber enTer one opTion FroM eACh CATegory in The ForM beLow. CAte GO ry Base Model Surface Mountable l ead Configuration 1 Screening 2 OptiONS FMGA-461 (standard “flat” case B, leave blank) (standard, leave blank) Z (solder-dipped gull wings) ES 883 Fill iN FOr M OD el # FMGA-461 / Notes 1. Case B, standard “flat” case, does not require a case designator in the model number. Case B with solder-dipped gull wings requires “Z” in the case designator position of the model number. 2. Screening: For standard screening leave the screening option blank. For other screening options, insert the desired screening level. For more information see Table 1 on page 20 and Table 12 on page 21. table 8: mODel numbering key table 9: Dla Drawing number CrOss reFerenCe table 10: mODel number OptiOns Crane Aerospace & Electronics Power Solutions FMSA/FMGA eMi i nput Filters 28 VOlt iN put - 0.8 AM p www.craneae.com/interpointcom Page 7 of 14 FMSA/FMGA Rev AA - 2015.12.15
FMSA-461 SERIES / FMGA-461 SERIES A LL M ODELS PARAMETER CONDITIONS MIN TYP MAX UNITS LEAD SOLDERING TEMPERATURE 1 10 seconds max. — — 300 °C STORAGE TEMPERATURE 1 -65 — +150 °C CASE OPERATING TEMPERATURE 1, 2 -55 — +125 °C ISOLATION, ANY PIN TO CASE @ 500 VDC A T 25°C 100 — — Megohms Notes 1. Guaranteed by characterization test and/or analysis. Not a production test. 2. Derate linearly from 100% at 100°C to 0.60 amps at 125°C. Above 125°C derate to 0%. Notes 1. Guaranteed by characterization test and/or analysis. Not a production test. 2. Derate linearly from 100% at 100°C to 0.60 amps at 125°C. Above 125°C derate to 0%. FMSA-461 FMGA-461 PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS INPUT VOLTAGE 1 CONTINUOUS 0 28 50 0 28 50 V TRANSIENT 100 ms 1 — — 80 — — 80 V I N PUT CURRENT 1, 2 STEADY STATE — — 0.80 — — 0.80 A NOISE REJECTION 500 kHz, TC = 25°C 55 70 — 55 70 — 500 kHz, TC = +55 to 125°C 50 70 — 50 70 —
1 MHz, TC = 25°C 54 70 — 54 70 — dB
1 MHz, TC = +55 to 125°C 50 70 — 50 70 —
5 MHz, TC = 25°C 50 — — 50 — —
5 MHz, TC = +55 to 125°C 45 — — 45 — —
1 2 to 50 MHz, TC = 25°C 40 — — 40 — — dB DC RESISTANCE (RDC) TC = 25°C — — 1.2 — — 1.2 Ω C APACITANCE ANY PIN TO CASE TC = 25°C 22 — 31 36 — 45 nF OUTPUT VOLTAGE 1 STEADY STATE VOUT = VIN - IIN(RDC) V OUT = VIN - IIN(RDC) V I NTERNAL P OWER D ISSIPATION 1 MAXIMUM CURRENT TC = 25°C — — 0.77 — — 0.77 W table 11: Operating COnDitiOns, 25°C Case. table 12: eleCtriCal CharaCteristiCs: -55 tO +125°C Case, unless Otherwise speCiFieD. Crane Aerospace & Electronics Power Solutions FMSA/FMGA eMi i nput Filters 28 VOlt iN put - 0.8 AM p www.craneae.com/interpointcom Page 8 of 14 FMSA/FMGA Rev AA - 2015.12.15
0.000 0.097 (2.46) 0.697 (17.70) Squared corner and dot on top of case indicate pin one. 0.397 (10.08) 0.000 0.135 (3.43) 0.835 (21.21) 0.270 max (6.98) 0.000 0.735 (18.67) Projection Weld 1 3 8 4 6 5 BOTTOM VIEW CASE A1 FMSA0.27 ±0.02 (6.9 ±0.5) 0.018 ± 0.002 dia. (0.46 ± 0.05) Seal hole: 0.056 ±0.002 (1.42 ±0.05) 0.805 max. (20.45) 0.980 max. (24.89) Weight: 11.5 grams maximum Case dimensions in inches (mm) Tolerance ±0.005 (0.13) for three decimal places ±0.01 (0.3) for two decimal places unless otherwise specified CAUTION Heat from reflow or wave soldering may damage the device. Solder pins individually with heat application not exceeding 300°C for 10 seconds per pin. Materials Header Kovar/Nickel/Gold Cover Kovar/Nickel Pins Kovar/Nickel/Gold matched glass seal Gold plating of 50 microinches minimum Case A1 FMSA, Rev E, 2015.12.14 Please refer to the numerical dimensions for accuracy. Figure 15: Case a1 Crane Aerospace & Electronics Power Solutions FMSA/FMGA eMi i nput Filters 28 VOlt iN put - 0.8 AM p www.craneae.com/interpointcom Page 11 of 14 FMSA/FMGA Rev AA - 2015.12.15
0.135 ref. (3.43) Gull wing leads are solder dipped. Lead dimensions are prior to solder dip. 0.08 (2.0) 0.010 (0.25) Bottom of case to bottom of lead 0.055 (1.40) 0.070 (1.78) 0.08 (2.0) 1.140 ref. (28.96) TOP VIEW CASE B FMGA 0.880 max (22.35) 1.010 max (25.65) 0.010 (0.25) 1.870 ref. (47.50) 0.015 (0.38) 0.010 (0.25) 0.900 (22.86) 0.800 (20.32) 0.700 (17.78) 0.600 (15.24) 0.500 (12.70) 0.400 (10.16) 0.300 ( 7.62) The triangle (ESD) marking on the cover indicates pin one. Cover marking is oriented with pin one at the upper right corner. The straight lead configuration does not require a “case designator” in the model number. ex. FMGA-461 0.000 0.000 Straight Leads0.50 (12.7) 0.250 max. (6.35) 0.200 ( 5.08) 0.100 ( 2.54) Seam seal Seal hole: 0.040 ±0.002 (1.02 ±0.05) Weight: 12 grams maximum Case dimensions in inches (mm) Tolerance ±0.005 (0.13) for three decimal places, ±0.01 (0.3) for two decimal places unless otherwise specified. Please refer to the numerical dimensions for accuracy. CAUTION Maximum reflow temperature is 220°C for a maximum of 30 seconds. SN60, SN62, or SN63 are the recommended types of solder. See MGH gull-wing solder pad layout. Hand soldering should not exceed 300°C for 10 seconds per pin. Materials Header Kovar/Nickel/Gold Cover Kovar/Nickel Pins Kovar/Nickel/Gold matched glass seal Gold plating of 50 - 150 microinches is included in pin diameter Case B FMGA, Rev E, 2015.12.09 (This view shows straight leads.) (Center to center) The gull wing option (configuration) requires “Z” as a “case designator” in the model number. ex. FMGA-461Z 0.830 (21.08) 0.070 (1.78) 0.090 (2.29) 0.030 (0.76) 18X 0.085 (2.16) 4X 0.100 (2.54) 16X Case B1 FMGA Solder Pads, Rev F, 2013.05.31 CASE B1 GULL-WING SOLDER PADS FMGA CASE Z Dimensions in inches (mm) Tolerance ±0.005 (0.13) for three decimal places ±0.01 (0.3) for two decimal places, unless otherwise specified. Please refer to the numerical dimensions for accuracy. CAUTION: Internal components are soldered with SN96 (melting temperature 221°C) to prevent damage during reflow. Maximum reflow temperature for surface mounting the FMGA filter is 220°C for a maximum of 30 seconds. SN60, 62, or 63 are the recommended types of solder. Hand soldering should not exceed 300°C for 10 seconds per pin. SOLDER MASK NOTES 1. Pad dimensions are for the solder mask. Leads common to each other can be connected to each other as desired. 2. Ground (case) pins should be connected to the center pad for improved grounding. 3. Connect "no connection" pins to case ground to reduce EMI. 4. Center pad should not have a solder mask. 5. Adhesive attach is intended to be a surface for soldering the hybrid to the circuit board. 6. Pre-tin base of converter prior to soldering. 7. If less rotation of case is desired, reduce the width of the large case pad by 0.020 inches (0.51 mm). Pad length can be extended 0.010 inches (0.25 mm) towards the case body and an as-desired dimension away from the case body. 8. Do not exceed 220°C as measured on the body of the converter (top or bottom). 9. Attach the body of the case to the board with a thermally conductive adhesive or SN60, 62, or 63 solder. The adhesive can be electrically conductive as well. It can be applied as an underfill post solder or dispensed and cured prior or during solder. 10. In the presence of vibration, to ensure reliable mechanical attachment, the body of the case should be attached with adhesive or solder as noted above (note 7). The leads alone do not provide sufficient mechanical attachment. Figure 16: Case b Figure 17: Case b sOlDer paD Crane Aerospace & Electronics Power Solutions FMSA/FMGA eMi i nput Filters 28 VOlt iN put - 0.8 AM p www.craneae.com/interpointcom Page 12 of 14 FMSA/FMGA Rev AA - 2015.12.15
Table is for reference only. See individual Series' datasheets for specific screening. TABLE 8: ELEMENT EVALUATION HIGH RELIABILITY DC-DC CONVERTERS AND EMI FILTERS /883 (CLASS H) ELEMENT EVALUATION 1 HIGH RELIABILITY /883 (CLASS H) QML CLASS H /883 COMPONENT-LEVEL TEST PERFORMED M/S 2 P 3 Element Electrical n n Visual n n Internal Visual n Final Electrical n n Wire Bond Evaluation n n Notes 1. Element evaluation does not apply to standard and /ES product. 2. M/S = Active components (microcircuit and semiconductor die). 3. P = Passive components, Class H element evaluation. Not applicable to standard and /ES element evaluation. table 13: element eValuatiOn Crane Aerospace & Electronics Power Solutions FMSA/FMGA eMi i nput Filters 28 VOlt iN put - 0.8 AM p www.craneae.com/interpointcom Page 13 of 14 FMSA/FMGA Rev AA - 2015.12.15
Table is for reference only. See individual Series' datasheets for specific screening. TABLE 9: ENVIRONMENTAL SCREENING HIGH RELIABILITY DC-DC CONVERTERS AND EMI FILTERS STANDARD, /ES AND /883 (CLASS H) ENVIRONMENTAL SCREENING HIGH RELIABILITY STANDARD, /ES AND /883 (CLASS H) NON-QML 1 QML 2 TEST PERFORMED STANDARD /ES CLASS H /883 pre-cap inspection, Method 2017, 2032 n n n temperature Cycle (10 times) Method 1010, Cond. C, -65°C to +150°C, ambient n Method 1010, Cond. B, -55°C to +125°C, ambient n Constant Acceleration Method 2001, 3000 g n Method 2001, 500 g n piND, test Method 2020, Cond. A n 3 Burn-in Method 1015, +125°C case, typical 4 96 hours n 160 hours n Final electrical test, Mil-prF-38534, Group A, Subgroups 1 through 6, -55°C, +25°C, +125°C case n Subgroups 1 and 4, +25°C case n n Hermeticity test Gross Leak, Cond. C1, fluorocarbon n n Fine Leak, Cond. A2, helium n n Gross Leak, Dip n Final visual inspection, Method 2009 n n n Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534. Notes 1. Standard and ES are non-QML products and may not meet all of the requirements of MIL-PRF-38534. 2. All processes are QML qualified and performed by certified operators. 3. Not required by DLA but performed to assure product quality. 4. Burn-in temperature designed to bring the case temperature to +125°C minimum. Burn-in is a powered test. table 14: enVirOnmental sCreening Crane Aerospace & Electronics Power Solutions FMSA/FMGA eMi i nput Filters Page 14 of 14 28 VOlt iN put - 0.8 AM p FMSA/FMGA Rev AA - 2015.12.15 This revision supersedes all previous releases. All technical information is believed to be accurate, but no responsibility is assumed for errors or omissions. Interpoint is a registered trademark of Crane Co. FMSA Series and FMGA Series are trademarks