Crane Aerospace & Electronics Power Solutions FME28-461 EMI Input Filters 28 Volt Input – 15 Amp Features Attenuation to 60 dB at 500 kHz • Operating temperature -55° to +125°C • Nominal 28 V input, 0 to 50 V operation • Transient rating to ±100 V for 100 ms • Up to 15 A throughput current • Compliant to MIL-STD-461C, CE03 • Compatible with MIL-STD-704 A-E 28 VDC power bus Description The FME Series™ EMI filters are specifically designed to reduce the reflected input ripple current of Interpoint’s high frequency DC/DC converters. FME filters minimize electromagnetic interference (EMI) for the MOR, MFL, MTR, MHV, MHF+, MHF, MTO and MHE Series of converters. These filters are intended for use in 28 volt applications which must meet MIL-STD-461C CE03 levels of conducted emissions. One filter can be used with multiple converters up to the rated output current of the filter. Input Ripple and EMI Switching DC/DC converters naturally generate two noise components on the power input line: differential noise and common mode noise. Input ripple current refers to both of these components. Differential noise occurs between the positive input and input common. Most Interpoint converters have an input filter that reduces differential noise which is sufficient for many applications. Common mode noise occurs across stray capacitances between the converter’s power train components and the baseplate (bottom of the package) of the converter. Where low noise currents are required to meet MIL-STD-461C, a power line filter is needed. The FME28 EMI power line filters reduces the common mode and differential noise generated by the converters. FME28 filters reduce input ripple current by as much as 60 dB at 500 kHz and 1 MHz when used in conjunction with Interpoint’s DC/DC converters. Crane Aerospace & Electronics Electronics Group (Interpoint Brand) PO Box 97005 • Redmond WA 98073-9705 425.882.3100 • [email protected] www.interpoint.com Place the filter as close as possible to the converter for optimum performance. The baseplates of the filter and the converter should be connected with the shortest and widest possible conductors. Transients A transient of -100 to +100 V for up to 100 ms with a 0.5 ohm source impedance will not damage the filter but will be passed on to the converter: Operation over Temperature The FME28-461 Series filters are rated for operation from -55°C to +125°C case temperature. Insertion Loss The maximum dc insertion loss at full load and nominal input voltage represents a power loss of less than 4%. Packaging FME28-461 filters are sealed in metal hermetic side-leaded packages. See cases U, V, W, Y, and Z. Page 1 of 13 FME28 Rev C - 20100226 Crane Aerospace & Electronics Power Solutions FME28-461 EMI Input Filters 28 Volt Input – 15 Amp Operating Conditions and characteristics mechanical and environmental Size (maximum) • Case U 3.005 x 1.505 x 0.400 inches (76.33 x 38.23 x 10.16 mm) The image on page one shows Case U (flanged, short leads). • Also available: ‣‣Flanged: leads bent down (case V) ‣‣Tabbed: leads bent up (case W) ‣‣Tabbed: short leads (case Y) ‣‣Tabbed: leads bent down (case Z). • See cases U, V, W, Y, and Z for dimensions and options. Input Voltage Range • 0 to 50 VDC continuous • Transient -100 to +100 volts for 100 ms Lead Soldering Temperature (10 sec per lead) • 300°C Storage Temperature Range (TC) • -65°C to +150°C Case Operating Temperature (TC) • -55°C to +125°C full power • -55°C to +135°C absolute Derating Input/Output Current • Linearly from 15 A at 95°C to 10 A at 125°C to zero at 135° C • 15 A max at 95°C to 10 A max at 125°C Isolation • 100 megohm minimum at 500 VDC • Any pin to case Weight (maximum) • 77 grams typical cases U, V, W, Y, and Z Screening The FME28 EMI Input filter offers Standard, /ES or 883, Class H, QML screening. See page 13 “883 (Class H, QML), Standard and /ES (non-QML)” screening table for more information. EMI FILTER +Vin DC/DC CONVERTER +Vin +Vout +Vout Case Output Input Common Common Case Output Input Common Common Multiple units allowed up to rated output current of filter Chassis ground RL RL 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: Connection Diagram Positive Output Positive Input Output Common Input Common FME28-461 Figure 2: Schematic www.interpoint.com Page 2 of 13 FME28 Rev C - 20100226 Crane Aerospace & Electronics Power Solutions FME28-461 EMI Input Filters 28 Volt Input – 15 Amp Pin Out Pin 1 Designation 1, 2, 3 Positive Input 7, 8, 9 Output Common 4, 5, 6 Input Common 10, 11, 12 — Positive Output Case Ground 2 Notes 1. All pins must be connected. 2. The baseplate is the only case ground connection and should directly contact chassis ground. Angled corner and cover marking indicate pin one for cases U and V. Cover marking indicates pin one for cases W, Y and Z. 1 TOP VIEW U Case 2 3 4 11 Outline shown is case U, pin out is the same for all cases. See cases U, V, W, Y, and Z for dimensions. 10 9 5 8 6 7 Figure 3: Pin Out www.interpoint.com 12 Page 3 of 13 FME28 Rev C - 20100226 Crane Aerospace & Electronics Power Solutions FME28-461 EMI Input Filters 28 Volt Input – 15 Amp model numbering key Base Model Input Voltage FME 28 - 461 DSCC Numbers V DSCC Drawing (5915) / 883 MIL-STD-461 Reference Case/Lead Option* Screening (Standard screening has no designator in this position.) FME28 Similar Part -95004-01HTC FME28-461W/883 -95004-01HUC FME28-461V/883 -95004-01HXC FME28-461/883 -95004-01HYC FME28-461Y/883 -95004-01HZC FME28-461Z/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 *Case/Lead Option: See cases U, V, W, Y, and Z for drawings and dimensions. Case Options: DSCC Cross Referenced to Interpoint DSCC Case Option Interpoint Case Option T W U V X (standard case, no option required) Y Y Z Z model selection On the lines below, enter one selection from under each category to determine the model number. Category Selection FME28 -461 _______ Base Model and Input Voltage MIL-STD-461 Reference Case/Lead option 1 Screening 2 U (leave blank) Standard (leave blank) “FME28” is the only available selection “-461” is the only available selection / ______ V ES W 883 (Class H, QML) Y Z Notes: 1. Case U is the standard, side-leaded, flanged case. Leave the option blank for case U. Refer to the case drawings on pages 7 - 11 for other case options. 2. Leave blank for standard screening. Use “ES” for “ES” screening and “883” for Class H screening. See the table on page 13 for more information. www.interpoint.com Page 4 of 13 FME28 Rev C - 20100226 Crane Aerospace & Electronics Power Solutions FME28-461 EMI Input Filters 28 Volt Input – 15 Amp Electrical Characteristics: 25°C TC, nominal Vin, unless otherwise specified. MODEL FME28-461 PARAMETER CONDITIONS MIN TYP MAX UNITS INPUT VOLTAGE CONTINUOUS 0 28 50 VDC V NOISE REJECTION DC RESISTANCE (RDC) AT MAXIMUM CURRENT 1 CAPACITANCE 1 TRANSIENT 100 ms 1, 2 -100 — 100 500 kHz 60 — — 1 MHz 60 — — TC = 25°C — — 0.07 — — 0.07 TC = 125°C dB Ω ANY PIN TO CASE 60,000 pF OUTPUT VOLTAGE STEADY STATE VOUT = VIN - IIN (RDC) VDC OUTPUT CURRENT STEADY STATE — — 15 3 TC = 25°C — — 13.5 — — 19.7 POWER DISSIPATION AT MAXIMUM CURRENT 1 TC = 125°C Note 1. Guaranteed by design, not tested. 2. 0.5 ohm source impedance 3. 15 A maximum at 95°C, derate linearly to 10A at 125°C www.interpoint.com Page 5 of 13 FME28 Rev C - 20100226 A W Crane Aerospace & Electronics Power Solutions FME28-461 EMI Input Filters 28 Volt Input – 15 Amp Typical Performance Curves: 25°C Tc, nominal Vin, unless otherwise specified. 90 90 CE 60 80 NARROWBAND LI M EMISSION LEVEL (dB A) 03 70 IT 50 40 30 20 10 IT 30 20 10 .015 50 NARROWBAND M 40 0 10 LI 50 .015 1 FREQUENCY (MHz) 03 60 0 0.1 CE 70 0.1 1 FREQUENCY (MHz) 10 50 Three paralleled and synchronized MFL2815D converters without filtering. CE03: Three paralleled and synchronized MFL2815D converters with an FME28-461. Figure 4 Figure 5 1.0 1.0 0.9 0.9 IMPEDANCE (OHMS) IMPEDANCE (OHMS) EMISSION LEVEL (dB A 80 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.1 1.0 10 FREQUENCY (kHz) 100 0.1 DC BIAS: 1 AMP 100 DC BIAS: 10 AMP FME28-461 OUTPUT IMPEDANCE FME28-461 OUTPUT IMPEDANCE Figure 6 www.interpoint.com 1.0 10 FREQUENCY (kHz) Figure 7 Page 6 of 13 FME28 Rev C - 20100226 Crane Aerospace & Electronics Power Solutions FME28-461 EMI Input Filters – Cases 28 Volt Input – 15 Amp TOP VIEW CASE U* Flanged case, short-leaded *Does not require designator in Case Option position of model number. Seam Seal 0.23 (5.8) Pin Length 0.128 dia (3.25). 1.505 (38.23) max. 11 3 10 0.650 (16.51) 4 9 0.450 (11.43) 5 8 0.250 (6.35) 6 7 0.000 0.120 (3.05) 0.000 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 Cold Rolled Steel/Nickel/Gold Cover Kovar/Nickel Pins #52 alloy/Gold, compression glass seal Seal Hole: 0.100 ±0.002 (2.54 ±0.05) Case U, Rev E, 20100401 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 © 1999-2010 Interpoint Corp. All rights reserved. Figure 8: Case U - FME28-461 www.interpoint.com Page 7 of 13 FME28 Rev C - 20100226 0.220 (5.59 2 0.850 (21.59) 0.050 (1.27) 0.000 1.050 (26.67) 0.040 dia (1.02) 12 2.750 (69.85) 1 0.120 (3.05) 0.250 (6.35) 1.250 (31.75) 2.880 (73.15) 3.005 (76.33) max. 1.380 (35.05) 0.400 (10.16) max. Angled corner indicates pin one. Crane Aerospace & Electronics Power Solutions FME28-461 EMI Input Filters – Cases 28 Volt Input – 15 Amp TOP VIEW CASE V* Flanged case, down leaded *Designator "V" required in Case Option position of model number. Maximum dimensions: 3.005 x 1.505 (76.33 x 38.23 mm) Angled corner indicates pin one. 3.45 (87.6) Reference (lead center to lead center) 0.128 dia (3.25) 0.040 dia (1.02) 1.380 (35.05) 1.250 (31.75) 12 1 1.050 (26.67) 11 2 0.850 (21.59) 10 3 0.650 (16.51) 9 4 0.450 (11.43) 8 5 0.250 (6.35) 7 6 0.120 (3.05) Seam Seal 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 Cold Rolled Steel/Nickel/Gold Cover Kovar/Nickel Pins #52 alloy/Gold, compresssion glas seal Seal Hole: 0.120 ±0.002 (3.05 ±0.05) Case V, Rev E, 20100106 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 © 1999-2009 Interpoint Corp. All rights reserved. Figure 9: Case V - FME28-461V www.interpoint.com Page 8 of 13 FME28 Rev C - 20100226 ref: 0.250 ±0.050 (6.35 ±1.27) 0.050 (1.27) 0.000 0.220 (5.59) 0.400 (10.16) max 2.880 (73.15) 3.005 (76.33) max 2.750 (69.85) 0.250 ±0.010 (6.35 ±0.3) 0.000 0.120 (3.05) ref: 0.225 (5.72 0.000 Crane Aerospace & Electronics Power Solutions FME28-461 EMI Input Filters – Cases 28 Volt Input – 15 Amp TOP VIEW CASE W* Tabbed case, up-leaded *Designator "W" required in Case Option position of model number. 0.140 dia (3.56) 0.250 (6.35) Typ. 1.750 (44.45) 1.625 (41.28) 2.000 (50.80) 1.375 (34.93) 1.175 (29.85 0.975 (24.77) 0.775 (19.69) 0.575 (14.61) 0.375 (9.53) Seam Seal 0.250 (6.35) Typ. 1 12 2 11 3 10 4 9 5 8 6 7 0.040 dia (1.02) 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. 0.84 ±0.05 (21.3 ±1.3) 0.050 (1.27) 0.000 0.220 (5.59) Lead Detail 0.400 (10.16) max. 0.220 (5.59) 0.000 Materials Header Cold Rolled Steel/Nickel/Gold Cover Kovar/Nickel Pins #52 alloy/Gold, compresssion glass seal Seal Hole: 0.120 ±0.002 (3.05 ±0.05) Case W, Rev E, 20100401 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 © 1999-2010 Interpoint Corp. All rights reserved. Figure 10: Case W - FME28-461W www.interpoint.com 0.400 (10.16) max. 0.84 ±0.05 (21.3 ±1.3) 0.375 (9.53) 0.000 0.300 (7.62) 1.450 (36.83) 1.750 (44.45) 2.125 (53.98) 0.125 (3.18) 0.000 Page 9 of 13 FME28 Rev C - 20100226 0.150 (3.81) 2.80 (71.1) Reference (lead center to lead center) Crane Aerospace & Electronics Power Solutions FME28-461 EMI Input Filters – Cases 28 Volt Input – 15 Amp TOP VIEW CASE Y* Tabbed case, straight-leaded *Designator “Y” required in Case Option position of model number. 0.140 dia (3.56) 0.250 (6.35) Typ. 2.000 (50.80) Seam Seal 0.250 (6.35) Typ. 1.750 (44.45) 1.625 (41.28) 1.375 (34.93) 1.175 (29.85 0.975 (24.77) 0.775 (19.69) 0.575 (14.61) 0.375 (9.53) 1 12 2 11 3 10 4 9 5 8 6 7 0.040 dia (1.02) 0.050 (1.27) 0.000 Lead Detail 0.400 (10.16) max. 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. 0.220 (5.59) 0.000 Materials Header Cold Rolled Steel/Nickel/Gold Cover Kovar/Nickel Pins #52 alloy/Gold, compresssion glass seal Seal Hole: 0.120 ±0.002 (3.05 ±0.05) Case Y, Rev E, 20100401 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 © 1999-2010 Interpoint Corp. All rights reserved. Figure 11: Case Y - FME28-461Y www.interpoint.com 0.220 (5.59) 0.375 (9.53) 0.400 (10.16) max. 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 0.000 0.300 (7.62) 1.450 (36.83) 1.750 (44.45) 2.125 (53.98) Pin Length 0.30 ±0.05 (7.6 ±1.3) 0.125 (3.18) 0.000 Page 10 of 13 FME28 Rev C - 20100226 0.30 ±0.05 (7.6 ±1.3) 3.10 (78.7) Reference Crane Aerospace & Electronics Power Solutions FME28-461 EMI Input Filters – Cases 28 Volt Input – 15 Amp TOP VIEW CASE Z* Tabbed case, down-leaded *Designator “Z” required in Case Option position of model number. 0.140 dia (3.56) 0.250 (6.35) Typ. 0.250 (6.35) Typ. 1.750 (44.45) 1.625 (41.28) 2.000 (50.80) 1.375 (34.93) 1.175 (29.85 0.975 (24.77) 0.775 (19.69) 0.575 (14.61) 0.375 (9.53) Seam Seal 1 0.040 dia (1.02) 12 2 11 3 10 4 9 5 8 6 7 0.150 (3.81) 0.36 ±0.05 (9.1±0.13) 0.050 (1.27) 0.000 Lead Detail 0.400 (10.16) max. 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. 0.220 (5.59) Materials Header Cold Rolled Steel/Nickel/Gold Cover Kovar/Nickel Pins #52 alloy/Gold, compresssion glass seal Seal Hole: 0.120 ±0.002 (3.05 ±0.05) 0.000 0.36 ±0.05 (9.1±0.13) Case Z, Rev E, 20100401 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 © 1999-2010 Interpoint Corp. All rights reserved. Figure 12: Case Z - FME28-461Z www.interpoint.com 0.220 (5.59) 0.375 (9.53) 0.400 (10.16) max. 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 0.000 0.300 (7.62) 1.450 (36.83) 1.750 (44.45) 2.125 (53.98) 0.125 (3.18) 0.000 Page 11 of 13 FME28 Rev C - 20100226 2.80 (71.1) Reference (lead center to lead center) Crane Aerospace & Electronics Power Solutions FME28-461 EMI Input Filters 28 Volt Input – 15 Amp STANDARD AND /ES (NON-QML) AND /883 (CLASS H, QML) PRODUCT ELEMENT EVALUATION COmpOnent-level test perFOrmed standard and /es nOn-Qml 1 M/S 2 /883 Class h Qml P3 M/S 2 Element Electrical (probe) yes no yes yes Element Visual no no yes yes Internal Visual no N/A yes N/A Final Electrical no no yes yes no no yes yes no no no yes Wire Bond Evaluation 4 SLAM™/C-SAM: Input capacitors only (Add’l test, not req. by H) Notes: 1. Standard and /ES, 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. 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 www.interpoint.com P3 Page 12 of 13 FME28 Rev C - 20100226 Crane Aerospace & Electronics Power Solutions FME28-461 EMI Input Filters 28 Volt Input – 15 Amp STANDARD AND /ES (NON-QML) AND /883 (CLASS H, QML) PRODUCT ENVIRONMENTAL SCREENING 125°C standard nOn-Qml1 125°C /es nOn-Qml1 /883 Class h 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, 500 g no no no yes yes no Burn-in 2 Method 1015, 125°C case, typical 96 hours 160 hours no no yes no no yes 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 perFOrmed Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534. Notes: 1. Standard and /ES, non-QML products, do not meet all of the requirements of MIL-PRF-38534. 2. Burn-in temperature designed to bring the case temperature to +125°C FME28-461 EMI Input Filters FME28 Rev C - 20100226. This revision supersedes 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. FME Series EMI Filters are a trademark of Interpoint. Copyright © 1999 - 2010 Interpoint Corporation. All rights reserved. www.interpoint.com Page 13 of 13