Crane Aerospace & Electronics Power Solutions FMSA/FMGA EMI Input Filters 28 VOLT INPUT – 0.8 AMP FEATURES MODEL • –55°C to +125°C operation • 50 dB min. attenuation at 500 kHz differential mode • 45 dB min. attenuation at 5MHz common mode • Compliant to MIL-STD-461C, CE03 • Compatible with MIL-STD-704E DC power bus • Compatible with MIL-STD-704A through E (FMGA) FMSA-461 FMGA-461 FMSA SERIES™ EMI FILTER The FMSA-461 EMI filter modules have been designed as a companion for Interpoint MSA flyback power converters. Multiple MSA power converters can be operated from a single filter provided the total power line current does not exceed the filter maximum rating. 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 Figures 4 and 5. The FMSA is fabricated using thick film hybrid technology and is sealed in a metal package for military, aerospace and other applications requiring EMI suppression. 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. 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. comply with CE03. For MHF, MHF+, MHD, 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 4μF or the optional damping circuit shown on the connection diagram will be adequate for stable operation. No capacitor is required for MSA, or DCH models. OPTIONAL DAMPING CIRCUIT The optional damping circuit (Figure 2) can be used to prevent filter overshoot caused by MIL-STD-704A 80 V, or other, transients having rise times of less than 200 μSec. This damping can be alternately provided with a 1.50 Ω resistor in series with the filter positive input where the additional line loss can be tolerated. For transients with rise times of greater than 200 μsec, 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. The FMSA filter can also be used with other types of Interpoint power converters (MHF, MHF+, MHE, MHD, and DCH series) to Crane Aerospace & Electronics Electronics Group (Interpoint Brand) PO Box 97005 • Redmond WA 98073-9705 425.882.3100 • [email protected] www.craneae.com 0.8 amp 0.8 amp Page 1 of 14 Rev D - 20060508 Crane Aerospace & Electronics Power Solutions FMSA/FMGA EMI Input Filters 28 VOLT INPUT – 0.8 AMP FMGA SERIES™ EMI FILTER Interpoint’s surface mount FMGA-461™ EMI filter has been designed to work with Interpoint’s surface mount MGA and MGH Series DC/DC converters. Multiple MGA or MGH Series converters can be operated from a single FMGA filter provided the total power line current does not exceed the filter’s maximum 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 Figures 4 through 7. The filter uses only ceramic capacitors for reliable hightemperature 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 its input terminals and the MGH Series has an internal 0.47 μF capacitor across its input power terminals. 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. 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. See case B for dimensions and options. LAYOUT REQUIREMENTS TRANSIENT DAMPING The optional damping circuit shown in Figure 2 will prevent filter overshoot caused by 80 V transients with rise times of less than 200 0.65 ⍀ Positive Input 20 ⍀ 20 ⍀ Input Common >285 H The case of the filter must be connected to the case of the converter through a low impedance connection to minimize EMI. 6 H 6 H 6800 pF 500 V 2 F 2 F x2 0.014 F / 500 V x2 0.014 F / 500 V 6800 pF 500 V Output Common FMGA-461 0.014 F / 500 V The case ground connection between the filter and the converter should be as low an impedance as possible to minimize EMI. Direct contact of baseplate to chassis ground provides the lowest impedance. FIGURE 1: FMGA TYPICAL SCHEMATIC www.craneae.com Positive Output Page 2 of 14 Rev D - 20060508 Crane Aerospace & Electronics Power Solutions FMSA/FMGA EMI Input Filters 28 VOLT INPUT – 0.8 AMP DAMPING CIRCUITS FMSA-461 DC/DC Converter Positive Output Positive Input Positive Output Positive Input C Case Ground Input Common R Output Common Case Ground RL Input Common The RC output is an optional damping circuit. It is recommended in applications where 80 volt line transients may occur with rise times <200 s. See text page one "Connection and Operation." C = 10 F, 100V – C = Sprague 109D106X9100C2 R = 2.2 , 5%, 1/4 W, Carbon comp. Output Common Multiple units allowed up to rated output current. RL FIGURE 2: FMSA DAMPING CIRCUIT FMGA-461 Positive Input DC/DC Converter Positive Output Positive Input Positive Output C Case Ground Input Common R Case Ground Input Common Output Common The RC output is an optional damping circuit. It is recommended in applications where 80 volt line transients may occur with rise times <200 s. See text page one "Connection and Operation." C = 10 F, 100V – C = Sprague 109D106X9100C2 R = 2.2 , 5%, 1/4 W, Carbon comp. Page 3 of 14 Rev D - 20060508 Output Common Multiple units allowed up to rated output current. FIGURE 3: FMGA DAMPING CIRCUIT www.craneae.com RL RL Crane Aerospace & Electronics Power Solutions FMSA/FMGA EMI Input Filters 28 VOLT INPUT – 0.8 AMP OPERATING CONDITIONS AND CHARACTERISTICS MECHANICAL AND ENVIRONMENTAL Input Voltage Range • 0 to 50 VDC continuous FMSA models 16 to 40 VDC continuous FMGA models • 80 V for 100 ms transient Lead Soldering Temperature (10 sec per lead) • 300°C Storage Temperature Range (Case) • –65°C to +150°C Case Operating Temperature (Tc) • –55°C to +125°C full power Derating Input/Output Current • Derate linearly from 100% at 100°C to 0.60 amps at 125°C case. Above 125°C derate to 0%. Capacitance • 0.045 μF max, any pin to case Isolation • 100 megohm minimum at 500 V • Any pin to case, except case pin Size (maximum) FMSA models 0.980 x 0.805 x 0.270 (24.89 x 20.45 x 6.86 mm) See case A1 for dimensions. FMGA models 1.010 x 0.880 x 0.250 inches (25.65 x 22.35 x 6.35 mm) Shown with “gull wing” lead option, also available with straight leads. See case B for dimensions and options. Weight (maximum) 10.3 grams typical, 11.5 grams maximum Screening* Standard, ES. See “883, Class H, QML Products – Element Evaluation” and “883, Class H, QML Products – Environmental Screening” for more informa tion. * FMGA model has the option of Class H screening, while FMSA does not. 0.65 ⍀ Positive Input 20 ⍀ 20 ⍀ Input Common >285 H 6 H 6 H 6800 pF 500 V 2 F 2 F x2 0.014 F / 500 V x2 0.014 F / 500 V 6800 pF 500 V Output Common FMSA-461 0.014 F / 500 V The case ground connection between the filter and the converter should be as low an impedance as possible to minimize EMI. Direct contact of baseplate to chassis ground provides the lowest impedance. FIGURE 4: FMSA SCHEMATIC – TYPICAL VALUES www.craneae.com Positive Output Page 4 of 14 Rev D - 20060508 Crane Aerospace & Electronics Power Solutions FMSA/FMGA EMI Input Filters 28 VOLT INPUT – 0.8 AMP PIN OUT FMSA MODELS Pin 1 2, 3 4 5, 6 7 8 Squared corner and dot on top of cover indicate pin one. Designation Positive Input Positive Output Case Ground Output Common Input Common Case Ground 1 8 2 3 BOTTOM VIEW FMSA 7 4 6 5 See case A1 for dimensions. FIGURE 5: FMSA PIN OUT PINS NOT IN USE FMSA: Case ground FMGA: Case ground (pin 5, 6, 13, 14) Pin 3, 4, 15, 16 (pins with no connection) Connect to case ground for optimum fitting Connect to case ground for optimum fitting Connect to case ground for optimum fitting PIN OUT FMGA MODELS 1 2 3 4 5 6 7 8 9 Pin Description 1, 2 Positive Input 3, 4 No Connection 5, 6 Case Ground 7, 8, 9 Positive Output 10, 11, 12 Output Common 13, 14 Case Ground 15, 16 No Connection 17, 18 Input Common 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. See case B for dimensions and “gull-wing” lead option. To meet specified performance, all pins must be connected except “No Connection” pins. www.craneae.com TOP VIEW FMGA 18 17 16 15 14 13 12 11 10 FIGURE 6: FMGA PIN OUT Page 5 of 14 Rev D - 20060508 Crane Aerospace & Electronics Power Solutions FMSA/FMGA EMI Input Filters 28 VOLT INPUT – 0.8 AMP MODEL NUMBERING KEY FMSA - 461 DSCC NUMBER / DSCC DRAWING (5915) 883 Base Model MIL-STD-461 Reference 96003-01HXC Screening (Standard screening has no designator in this position.) FMSA-461 FILTER SIMILAR PART FMSA-461/883 For exact specifications for a DSCC product, refer to the DSCC drawing. DSCC drawings can be downloaded from: http://www.dscc.dla.mil/programs/smcr Model Selection FMSA Base model 461 MIL-STD-461 ref. Screening Choose one from each of the following rows Case option No case options Screening standard screening, leave blank www.craneae.com Page 6 of 14 Rev D - 20060508 /ES (ES screening), /883 (Class H, QML) Crane Aerospace & Electronics Power Solutions FMSA/FMGA EMI Input Filters 28 VOLT INPUT – 0.8 AMP MODEL NUMBERING KEY FMGA - 461 DSCC NUMBER Z / DSCC DRAWING (5915) ES Base Model 96003-01HYC MIL-STD-461 Reference Gull Wing Lead Option (Straight leaded filter has no designator in this position.) FMGA-461 FILTER SIMILAR PART FMGA-461/883 For exact specifications for a DSCC product, refer to the DSCC drawing. For the gull wing lead option, replace the Y in the DSCC number (HYC) with a Z (HZC). DSCC drawings can be downloaded from: http://www.dscc.dla.mil/programs/smcr Screening (Standard screening has no designator in this position.) Model Selection FMGA Base model 461 MIL-STD-461 ref. Screening Choose one from each of the following rows Case option straight leaded, leave blank Gull Wing lead, “Z” Screening standard screening, leave blank /ES (ES screening), /883 (Class H, QML) www.craneae.com Page 7 of 14 Rev D - 20060508 Crane Aerospace & Electronics Power Solutions FMSA/FMGA EMI Input Filters 28 VOLT INPUT – 0.8 AMP Electrical Characteristics: 25°C Tc, nominal Vin, unless otherwise specified. PARAMETER INPUT VOLTAGE INPUT CURRENT1 NOISE REJECTION NOISE REJECTION DC RESISTANCE (RDC) 500 kHz 1 MHz 5 MHz MIN 0 — — 50 50 45 FMSA-461 TYP 28 — — — — — MAX 40 80 0.80 — — — TC = 25°C — — 1.2 CONDITIONS CONTINUOUS TRANSIENT1, 100 ms VOUT = VIN - IIN (RDC) — 0.80 UNITS VDC V A dB dB Ω VDC OUTPUT VOLTAGE STEADY STATE OUTPUT CURRENT STEADY STATE (<100°C CASE) — INTERNAL POWER DISSIPATION MAXIMUM CURRENT — — 0.96 W CONDITIONS CONTINUOUS TRANSIENT 100 ms FMGA-461 TYP 28 — — — — MAX 40 80 0.80 — — UNITS VDC V A 500 kHz 5 MHz MIN 0 — — 55 50 2 MHz - 50 MHz 40 — — dB TC = 25°C — — 1.2 PARAMETER INPUT VOLTAGE1 INPUT CURRENT1 DIFFERENTIAL MODE NOISE REJECTION COMMON MODE NOISE REJECTION DC RESISTANCE (RDC) OUTPUT VOLTAGE OUTPUT CURRENT1 INTERNAL POWER DISSIPATION1 STEADY STATE dB Ω VDC STEADY STATE (<100°C CASE) — — 0.80 A MAXIMUM CURRENT — — 0.77 W Notes: 1. Guaranteed by design, not tested. www.craneae.com VOUT = VIN - IIN(RDC) A Page 8 of 14 Rev D - 20060508 Crane Aerospace & Electronics Power Solutions FMSA/FMGA EMI Input Filters 28 VOLT INPUT – 0.8 AMP Typical Performance Curves: 25°C Tc, nominal Vin, unless otherwise specified. FMSA EMI FILTERS 90 90 80 60 CE 03 NARROWBAND LI M A) 70 IT EMISSION LEVEL (dB EMISSION LEVEL (dB A) 80 50 40 30 20 10 CE 03 NARROWBAND LI M 60 IT 50 40 30 20 10 0 0 .015 70 0.1 1 FREQUENCY (MHz) 10 .015 50 0.1 1 FREQUENCY (MHz) 10 50 MSA2805S converter without a filter. MSA2805S converters at full load with an FMSA-461 EMI filter FIGURE 7 FIGURE 8 MAGNITUDE OF Zo (Ohms) 10.0 3.2 1.0 0.32 0.10 1K 2 μF external capacitor on filter output 10K 100K FREQUENCY (Hz) 1M Typical Output Impedance (Z) With Input Shorted FMSA-461 EMI Filter FIGURE 9 www.craneae.com Page 9 of 14 Rev D - 20060508 Crane Aerospace & Electronics Power Solutions FMSA/FMGA EMI Input Filters 28 VOLT INPUT – 0.8 AMP Typical Performance Curves: 25°C Tc, nominal Vin, unless otherwise specified. FMGA EMI FILTERS 100 90 90 EMISSION LEVEL (dB A) 03 LI EMISSION LEVEL (dB A) CE 80 70 80 NARROWBAND M IT 60 50 40 30 20 CE 03 70 LI M 60 NARROWBAND IT 50 40 30 20 10 10 0 0 .015 .015 0.1 1 FREQUENCY (MHz) 0.1 1 FREQUENCY (MHz) 50 10 TWO MGA 2805S CONVERTERS AT FULL LOAD WITH FMGA-461 POWER LINE FILTERING TYPICAL POWER LINE SPECTRAL NOISE CURRENT TWO MGA 2805S CONVERTERS AT FULL LOAD WITHOUT FILTERING TYPICAL POWER LINE SPECTRAL NOISE CURRENT FIGURE 11 FIGURE 10 100 50 10 NARROWBAND 90 90 A) EMISSION LEVEL (dB A) LI M IT EMISSION LEVEL (dB CE 03 80 70 80 60 50 40 30 20 CE 03 70 NARROWBAND LI M 60 IT 50 40 30 20 10 10 0 0 .015 .015 0.1 1 FREQUENCY (MHz) 50 10 1 FREQUENCY (MHz) FIGURE 12 FIGURE 13 MAGNITUDE OF Zo (Ohms) 10.0 3.2 1.0 0.32 0.10 1K 10 TWO MGH 2805S CONVERTERS AT FULL LOAD WITH FMGA-461 POWER LINE FILTERING TYPICAL POWER LINE SPECTRAL NOISE CURRENT TWO MGH 2805S CONVERTERS AT FULL LOAD WITHOUT FILTERING TYPICAL POWER LINE SPECTRAL NOISE CURRENT 2 F external capacitor on filter output 10K 100K FREQUENCY (Hz) Typical Output Impedance (Z) With Input Shorted - FMGA FIGURE 14 www.craneae.com 0.1 Page 10 of 14 Rev D - 20060508 1M 50 Crane Aerospace & Electronics Power Solutions FMSA/FMGA EMI Input Filter Cases 28 VOLT INPUT – 0.8 AMP BOTTOM VIEW CASE A1 Projection Weld Seam Seal Squared corner and dot on top of case indicate pin one. 2 3 8 4 7 6 5 0.735 (18.67) 0.835 (21.21) 0.397 (10.08) 0.000 0.27 ±0.02 (6.9 ±0.5) 0.000 0.270 max (6.98) 0.27 ±0.02 (6.9 ±0.5) 0.000 0.270 max (6.86) 0.097 (2.46) 0.000 0.018 ± 0.002 dia. (0.46 ± 0.05) 0.980 max. (24.89) 1 0.135 (3.43) 0.805 max. (20.45) 0.697 (17.70) Seal hole: 0.056 ±0.002 (1.42 ±0.05) 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 Case A1, Rev C, 20060110 Please refer to the numerical dimensions for accuracy. All information is believed to be accurate, but no responsibility is assumed for errors or omissions. Interpoint reserves the right to make changes in products or specifications without notice. Copyright © 1999-2006 Interpoint Corp. All rights reserved. FIGURE 15: CASE A1 www.craneae.com Page 11 of 14 Rev D - 20060508 Crane Aerospace & Electronics Power Solutions FMSA/FMGA EMI Input Filter Cases 28 VOLT INPUT – 0.8 AMP TOP VIEW CASE B 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. 0.880 max (22.35) 1 2 3 4 5 6 7 8 9 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) 0.200 ( 5.08) 0.100 ( 2.54) 18 17 16 15 14 13 12 11 10 (This view shows straight leads.) 1.010 max (25.65) 0.015 (0.38) 0.000 0.000 0.010 (0.25) 1.870 ref. (47.50) 0.50 (12.7) 0.08 (2.0) 0.250 max. (6.35) Straight Leads Seam seal 1.140 ref. (28.96) 0.135 ref. (3.43) 1 0.010 (0.25) Seal hole: 0.040 ±0.002 (1.02 ±0.05) 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 0.010 (0.25) Bottom of case to bottom of lead CAUTION Maximum reflow temperature is 220°C for a maximum of 30 seconds. SN60, SN62, or SN63 are the recommended types of solder. See case B Solder Pads for Solder Mask instructions. 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 Case B, Rev C, November 9, 2005 Please refer to the numerical dimensions for accuracy. All information is believed to be accurate, but no responsibility is assumed for errors or omissions. Interpoint reserves the right to make changes in products or specifications without notice. Copyright © 1999-2006 Interpoint Corp. All rights reserved. FIGURE 16: CASE B www.craneae.com Gull Wing Leads Option 1 Gull wing leads are solder dipped. Lead dimensions are prior to solder dip. Page 12 of 14 Rev D - 20060508 0.055 (1.40) 0.070 (1.78) 0.08 (2.0) Crane Aerospace & Electronics Power Solutions FMSA/FMGA EMI Input Filters 28 VOLT INPUT – 0.8 AMP 883, CLASS H, QML PRODUCTS – ELEMENT EVALUATION ELEMENT EVALUATION STANDARD (NON-QML)1 M/S2 P3 TEST PERFORMED (COMPONENT LEVEL) CLASS H, QML 2 M/S P3 Element Electrical (probe) yes no yes yes Element Visual no no yes yes Internal Visual no no yes no Final Electrical no no yes yes Wire Bond Evaluation4 no no yes yes SLAM™/C-SAM: Input Capacitors only (Add’l test, not req. by H or K) no no no yes Definitions: Element Evaluation: Component testing/screening per MIL-STD-883 as determined by MIL-PRF-38534 SLAM™: Scanning Laser Acoustic Microscopy C-SAM: C - Mode Scanning Acoustic Microscopy Notes: 1. Non-QML products do no meet all of the requirements of MIL-PRF-38534 2. M/S = Active components (Microcircuit and Semiconductor Die) 3. P = Passive components 4. Not applicable to EMI filters that have no wire bonds www.craneae.com Page 13 of 14 Rev D - 20060508 Crane Aerospace & Electronics Power Solutions FMSA/FMGA EMI Input Filters 28 VOLT INPUT – 0.8 AMP 883, CLASS H, QML PRODUCTS – ENVIRONMENTAL SCREENING TEST 125°C STANDARD non-QML 125°C /ES non-QML Class H /883 QML Pre-cap Inspection Method 2017, 2032 yes yes yes Temperature Cycle (10 times) Method 1010, Cond. C, -65°C to 150°C, ambient Method 1010, Cond. B, -55°C to 125°C, ambient no no no yes yes no Constant Acceleration Method 2001, 3000 g Method 2001, 500g no no no yes yes no Burn-In Method 1015, 160 hours at 125°C case, typical 96 hours at 125°C case, typical no no no yes yes no Final Electrical Test MIL-PRF-38534, Group A Subgroups 1 through 6: -55°C, +25°C, +125°C case Subgroups 1 and 4: +25°C case no yes no yes yes no Hermeticity Test Fine Leak, Method 1014, Cond. A Gross Leak, Method 1014, Cond. C Gross Leak, Dip (1 x 10-3) no no yes yes yes no yes yes no Final Visual Inspection Method 2009 yes yes yes Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534. FMSA/FMGA EMI Input Filters Rev D - 20060508. This revision supercedes all previous releases. All technical information is believed to be accurate, but no responsibility is assumed for errors or omissions. Interpoint reserves the right to make changes in products or specifications without notice. FMSA/FMGA Series is a trademark of Interpoint. Copyright © 1999 - 2006 Interpoint Corporation. All rights reserved. www.craneae.com Page 14 of 14