Crane Aerospace & Electronics Power Solutions FMC EMI Input Filters 28 VOLT INPUT – 2.7 AMP FEATURES • –55°C to +125°C operation • Up to 50 dB attenuation 400 kHz to 50 MHz • Transient suppression • Compliant to MIL-STD-461C, CE03 and MIL-STD-461D, CE102 • Compatible with MIL-STD-704 A-E DC power bus MODEL FMC-461 FMC-461NT 2.7 Amp 2.7 Amp DESCRIPTION The FMC-461™ and SFMC EMI filters have been specifically designed to reduce the input line reflected ripple current of Interpoint’s MHF, MTR, MTO, MHV, MHF+, MHD, MTW, MHE, and MLP series of DC/DC converters including their space counterparts. The filter can be used to filter combinations of the lower power converters up to two MTR/SMTR series converters and a single MFL/SMFL series converters. They are intended for use in applications which have high frequency switch-mode DC/DC converters and which must meet MIL-STD-461C or MIL-STD-461C levels of conducted and radiated noise. The FMC/SFC filters are built using thick-film hybrid technology and is hermetically sealed in metal packages for military, aerospace, and other high-reliability applications. The filters use only ceramic capacitors for reliable high temperature operation. MIL-STD NOISE MANAGEMENT When used in conjunction with Interpoint converters, the FMC-461, FMC-461 NT and SFMC-461 filters reduce input ripple current within the frequency band of 100 kHz to 50 MHz. This gives the filter/converter combination a performance which exceeds the CEO3 test of MIL-STD-461C and the CE102 test of MIL-STD-461D. Typical FMC-461 filter frequency response and output impedance behavior are shown in Figures 4 and 5. CEO3 performance of a typical converter with the FMC-461 filter connected is shown in Figure 3. Crane Aerospace & Electronics Electronics Group (Interpoint Brand) PO Box 97005 • Redmond WA 98073-9705 425.882.3100 • [email protected] www.craneae.com TRANSIENT SUPPRESSION - FMC-461 ONLY The FMC-461 filter also features an optional fast-reacting (1 pico second) transient suppressor (transorb) which begins clamping the input voltage at approximately 47 VDC, protecting the DC/DC converter from damage from induced line transients. The FMC-461NT does not have the transorb option. OPERATING TEMPERATURE The filters are rated to operate, with no degradation of performance, over the temperature range of -55°C to +125°C (as measured at the baseplate). Above +125°C, current must be derated as specified on the following page. INSERTION LOSS The maximum DC insertion loss for the FMC/SFMC filters (at a load of 22 watts) represents a power loss of less than 2% at typical input voltage. LAYOUT REQUIREMENT The case pin, and ideally the case, should be tied to the case of the converter through a low-inductance connection. Page 1 of 10 Rev C - 20060508 Crane Aerospace & Electronics Power Solutions FMC EMI Input Filters 28 VOLT INPUT – 2.7 AMP OPERATING CONDITIONS AND CHARACTERISTICS MECHANICAL AND ENVIRONMENTAL Input Voltage Range • 0 to 50 VDC continuous • 16 to 40 VDC continuous for 40 W load Lead Soldering Temperature (10 sec per pin) • 300°C Storage Temperature Range (Case) • –65°C to +150°C Case Operating Temperature (Tc) • –55°C to +125°C full power Derating Output Power/Current • DC input and output current Derate linearly from 100% at 125°C to 0% at 135°C case Input to Output Capacitance • 0.038 μF max, any pin to case Isolation • 100 megohm minimum at 500 V • Any pin to case, except case pin 277 IN5649A Size (maximum) Non-flanged 2.125 x 1.125 x 0.400 inches (53.98 x 28.58 x 10.16 mm) See case H1 for dimensions. Flanged 2.910 x 1.125 x 0.400 inches (73.91 x 28.58 x 10.16 mm) See case K2 for dimensions. Weight (maximum) 48 grams typical Screening Standard, ES, or 883 (Class H). See “883, Class H, QML Products – Element Evaluation” and “883, Class H, QML Products – Environmental Screening” for more information. H 35.6 H Positive Output Positive Input 6 1 6 68 F 1 F F 4.7 1 Output Common Input Common 1 3300 pF / 500 V FMC-461 FMC-461/883 6800 pF / 500 V (4 times) 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: SCHEMATIC – TYPICAL VALUES www.craneae.com Page 2 of 10 Rev C - 20060508 Crane Aerospace & Electronics Power Solutions FMC EMI Input Filters 28 VOLT INPUT – 2.7 AMP PINS NOT IN USE PIN OUT Pin 1 2 3 4 5 Case ground (pin 3) Designation Positive Input Positive Output Case Ground Output Common Input Common optimum filtering Dot on top of package indicates pin one 1 2 BOTTOM VIEW FMC NON-FLANGED AND FLANGED 5 3 4 Dotted line outlines flanged package option. See case H1 and case K2 for dimensions. FIGURE 2: PIN OUT www.craneae.com Connect to case ground for Page 3 of 10 Rev C - 20060508 Crane Aerospace & Electronics Power Solutions FMC EMI Input Filters 28 VOLT INPUT – 2.7 AMP MODEL NUMBERING KEY FMC - 461 NT DSCC NUMBER F DSCC DRAWING (5915) / 883 Base Model FMC-461 FILTER SIMILAR PART 94010-01HXC FMC-461/883 94010-01HZC FMC-461F/883 94010-02HXC1 FMC-461NT/8831 94010-02HZC1 FMC-461NTF/8831 1. No transorb (NT) MIL-STD-461 Reference No Transorb Option (Standard FMC-461 has no designator in this position) Case Option (Non-flanged case has no designator in this position) Flanged SMDs have the suffix HZC instead of HXC. 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 Screening (Standard screening has no designator in this position.) Model Selection FMC Base model 461 MIL-STD-461 ref. No Transorb option case option Screening Choose one from each of the following rows No Transorb option NT or leave blank Case option non-flanged (case H1, leave blank) or F (flanged, case K2) Screening standard screening, leave blank /ES (ES screening), /883 (Class H, QML) www.craneae.com Page 4 of 10 Rev C - 20060508 Crane Aerospace & Electronics Power Solutions FMC EMI Input Filters 28 VOLT INPUT – 2.7 AMP Electrical Characteristics: 25°C Tc, nominal Vin, unless otherwise specified. PARAMETER INPUT VOLTAGE INPUT CLAMPING VOLTAGE INPUT CURRENT DIFFERENTIAL MODE NOISE REJECTION COMMON MODE NOISE REJECTION DC RESISTANCE (RDC) FMC-461 TYP 28 45.1 47.0 49.5 — — — MAX 40 49.4 49.4 54.2 2.7 — — MIN 0 — — — — 40 50 FMC-461NT1 TYP 28 — — — — — — MAX 40 — — — 2.7 — — UNITS VDC 200 kHz 400 kHz - 50 MHz MIN 0 40.8 44.7 44.7 — 40 50 2 MHz - 50 MHz TC = 25°C 40 — — — — 0.20 40 — — — — 0.20 dB Ω CONDITIONS CONTINUOUS –55°C 25°C 125°C VDC A dB OUTPUT VOLTAGE2 STEADY STATE OUTPUT CURRENT RIPPLE — VOUT = VIN - IIN (RDC) — 1.0 — STEADY STATE — — 2.7 — — 2.7 A MAXIMUM CURRENT — — 1.6 — — 1.6 W INTERNAL POWER DISSIPATION Notes 1. The FMC-461NT does not have a transorb and does not clamp the input voltage 2. Typical applications result in Vout within 2% of Vin. www.craneae.com Page 5 of 10 Rev C - 20060508 VOUT = VIN - IIN (RDC) — 1.0 VDC A rms Crane Aerospace & Electronics Power Solutions FMC EMI Input Filters 28 VOLT INPUT – 2.7 AMP Typical Performance Curves: 25°C Tc , nominal Vin, unless otherwise specified. EMISSION LEVEL (dmA) 90 70 50 30 10 .015 0.1 1 10 50 FREQUENCY (MHz) DC/DC Converter Typical Worst Case EMI With FMC-461 Filter FIGURE 3 5 Attenuation (dB) -15 -35 -55 -75 -95 1K 10 K 100 K 1M FREQUENCY (Hz) FMC-461 Typical Amplitude Response vs. Frequency FIGURE 4 dB Ohms = 20 log Zout 10 0 -10 -20 1K 10 K 100 K 1M FREQUENCY (Hz) Typical Output Impedance (Z) With Input Shorted FIGURE 5 www.craneae.com Page 6 of 10 Rev C - 20060508 Crane Aerospace & Electronics Power Solutions FMC EMI Input Filter Cases 28 VOLT INPUT – 2.7 AMP BOTTOM VIEW CASE H1 Seam Seal Squared corner and dot on top of case indicate pin one. 0.040 dia (1.02) 1.110 max. (28.19) 0.955 (24.26) 1 2 3 5 4 0.245 (6.22) 1.845 (46.86) 0.555 (14.1) 0.155 (3.94) Seal hole: 0.120 ±0.002 (3.05 ±0.05) 2.090 max. (53.01) 0.000 0.25 ±0.01 (6.4 ±0.3) 0.000 0.400 max. (10.16) 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 ceramic seal Case H1, 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 6: CASE H1 www.craneae.com Page 7 of 10 Rev C - 20060508 Crane Aerospace & Electronics Power Solutions FMC EMI Input Filter Cases 28 VOLT INPUT – 2.7 AMP BOTTOM VIEW CASE K2 Flanged cases: Designator “F” required in Case Option position of model number. Seam Seal 0.040 dia (1.02) Dot on top of case indicates pin one 1.110 max. (28.19) 0.955 (24.26) 1 2 0.162 dia (4.11) 3 5 4 0.245 (6.22) 1.845 (46.86) 0.555 (14.1) 0.155 (3.94) 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 ceramic seal Case K2, 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 7: CASE K2 www.craneae.com Page 8 of 10 Rev C - 20060508 2.320 (58.93) 2.910 max. (73.91) Seal hole: 0.120 ±0.002 (3.05 ±0.05) 2.090 (53.01) 0.000 0.230 (5.84) 0.25 ±0.03 (6.4 ±0.8) 0.000 0.400 max. (10.16) 0.000 Crane Aerospace & Electronics Power Solutions FMC EMI Input Filters 28 VOLT INPUT – 2.7 AMP 883, CLASS H, QML PRODUCTS – ELEMENT EVALUATION ELEMENT EVALUATION STANDARD (NON-QML)1 M/S2 P3 TEST PERFORMED (COMPONENT LEVEL) CLASS H, QML M/S2 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 9 of 10 Rev C - 20060508 Crane Aerospace & Electronics Power Solutions FMC EMI Input Filters 28 VOLT INPUT – 2.7 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. FMC EMI Input Filters Rev C - 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. FMC Series is a trademark of Interpoint. Copyright © 1999 - 2006 Interpoint Corporation. All rights reserved. www.craneae.com Page 10 of 10