model b1-12 emi i nput f ilter 120 v olt i nput SFME120-461 emi filter 2.1 amp description the SFME120-461 emi filter modules are specifically designed to reduce the reflected input ripple current of interpoint s high frequency dc/dc converters. SFME120-461 filters minimize elec- tromagnetic interference (emi) for interpoint s smhp120 series of converters. these filters are intended for use in 120 volt applica- tions which must meet mil-std-461 levels of conducted emis- sions. one filter can be used with multiple converters up to the rated throughput current of the filter. s creening and r eports the SFME120-461 filter offers three screening options ?standard, class h, or class k. see section c2, quality assurance, pages c2- 7 through c2-9, for descriptions. detailed reports on product performance are also available and are listed on page c2-9. i nput r ipple and emi switching dc/dc converters naturally generate two noise compo- nents 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 most 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 ce03 of mil-std- 461, a power line filter is needed. the SFME120-461 emi power line filter reduces the common mode and differential noise generated by the converters. SFME120-461 filters reduce input ripple current by as much as 60 db at 500 khz and 55 db at 1 mhz when used in conjunction with interpoint s dc/dc converters. the filter must be placed 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 conduc- tors. for the best connection, mount the filter s and converter s baseplates on or above a small ground plane. o peration over t emperature SFME120-461 filters are rated for full power operation from ?5? to +125? case temperature. current is derated linearly to zero at +135? case temperature. i nsertion l oss the maximum dc insertion loss at full load and nominal input voltage represents a power loss of less than 4%. p ackaging SFME120-461 filters are sealed in metal hermetic side-leaded pack- ages (see section b8, cases u2, v, w, y, and z). additionally the fmd28-461 filter is available in a metal hermetic down-leaded package (see section b8, case j4). for more information, contact your interpoint representative listed in section a5. f eatures fully qualified to class h or k passive components for maximum tolerance in space environments ?5 to +125? operation 120 volt input up to 2.1 amps of throughput current up to 60 db attenuation at 500 khz. compliant to mil-std-461c, ce03 compatible with mil-std-704e dc power bus size (max.): 3.005 x 1.505 x 0.400 inches (76.33 x 38.23 x 10.16mm) see section b8, case u1, for dimensions. weight: 110 grams maximum screening: standard, class h, or class k (mil-prf-38534) see section c2 for screening options, see section a5 for ordering information. SFME120-461 2.1 amp 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. SFME120-461 is a trademark of interpoint. copyright 1999 interpoint. all rights reserved.
b8-36 case case u c ases materials header cold rolled steel/nickel/gold cover kovar/nickel pins #52 alloy/gold compression glass seal case dimensions in inches (mm) tolerance 0.005 (0.13) for three decimal places 0.01 (0.2) 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. case u top view (pin side) see figures 55 and 56 for dimensions 1.505 max (38.23) 3.005 (76.33) max. note: pins are shown for case u1. angled corner indicates pin one f igure 54: c ase u m aximum d imensions
b8-37 case u c ases angled corner indicates pin one. 1 2 3 4 5 6 12 11 10 9 8 7 0.000 0.050 (1.27) 0.000 0.120 (3.05) 0.250 (6.35) 0.450 (11.43) 0.650 (16.51) 0.850 (21.59) 1.050 (26.67) 1.250 (31.75) 1.380 (35.05) 1.505 (38.23) max. 0.000 0.120 (3.05) 0.250 (6.35) 2.750 (69.85) 2.880 (73.15) 3.005 (76.33) max. 0.128 dia (3.25). 0.040 dia (1.02) 0.23 (5.8) lead length 0.400 (10.16) max. 0.220 (5.59 top view case u1 mfl series and mhp series: screening ?standard, es or 883 mflhp series, fmd270 emi filter, and fmd28-461sl emi filters: screening ?standard or es smfl, smflhp, smhp, and ssp series; sfcs, and sfme emi filters: screening ?standard, class h or k hum70 module and lcm module: screening ?standard or es seam seal f igure 55: c ase u1
c2-7 qa screening space products s pace p roducts e lement e valuation s tandard c lass c lass t est p erformed (o) h k ( component level ) m/s p m/s p m/s p element electrical yes no yes yes yes yes element visual no no yes yes yes yes internal visual no no yes no yes no temperature cycling no no no no yes yes constant acceleration no no no no yes yes interim electrical no no no no yes no burn-in no no no no yes no post burn-in electrical no no no no yes no steady state life no no no no yes no voltage conditioning /aging no no no no no yes visual inspection no no no no no yes final electrical no no yes yes yes yes wire bond evaluation * no no yes yes yes yes sem no no no no yes no slam /c-sam: input capacitors only no no no yes no yes (add? test, not req. by h or k) definitions element evaluation: component testing/screening per mil-std-883 as determined by mil-prf-38534 sem: scanning electron microscopy slam : scanning laser acoustic microscopy c-sam: c - mode scanning acoustic microscopy notes m/s active components (microcircuit and semiconductor die) p passive components * not applicable to emi filters that have no wirebonds smflhp series smfl series smhp series (o&h only) smtr series ssp series smhf series smsa series slh series slim module sfme120 emi filter sfme28 emi filter sfcs emi filter sfmc emi filter stf emi filter applies to the following products:
c2-8 qa screening space products e nvironmental s creening t est p erformed s tandard c lass c lass ( end item level ) (o) h k non-destruct bond pull* method 2023 no no yes pre-cap inspection method 2017, 2032 yes yes yes temperature cycle method 1010, cond. c yes yes yes constant acceleration method 2001, 3000 g yes yes yes pind test method 2020, cond. b no no yes radiography method 2012 no no yes pre burn-in test yes yes yes burn-in, method 1015, 125? 96 hours yes no no 160 hours no yes no 2 x 160 hour (includes mid bi test) no no yes final electrical test mil-prf-38534, group a yes yes yes hermeticity test fine leak, method 1014, cond. a yes yes yes gross leak, method 1014, cond. c yes yes yes final visual inspection method 2009 yes yes yes test methods are referenced to mil-std-883 as determined by mil-prf-38534. note * not applicable to emi filters that have no wirebonds. smflhp series smfl series smhp series (o&h only) smtr series ssp series smhf series smsa series slh series slim module sfme120 emi filter sfme28 emi filter sfcs emi filter sfmc emi filter stf emi filter applies to the following products:
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