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dvmd28 series 1x024dse 11314 4th avenue west, suite 206 everett, wa 98204 http://www.vpt-inc.com sales information: phone: (425) 353-3010 fax: (425) 353-4030 e-mail: vptsales@vpt-inc.com 1 high reliability hybrid emi filters description the dvmd series of hybrid emi filters is operable over the full military (-55 c to +125 c) temperature range with no power derating. the dvmd emi filter is designed to filter conducted emissions of two dvtr or one dvfl series dc-dc converters. these filters are designed and manufactured in a facility qualified to iso9001 and certified to mil-prf- 38534 and mil-std-883. this product may incorporate one or more of the following u.s. patents: 5,784,266 5,790,389 5,963,438 5,999,433 6,005,780 6,084,792 6,118,673 features ? high reliability ? wide input voltage range: 0 to 50 volts per mil-std-704 ? up to 7.0 amp maximum current ? 40 db minimum attenuation at 500 khz ? industry standard pinout ? high input transient voltage: 80 volts for 1 sec per mil-std-704a ? precision seam welded hermetic package ? custom versions available ? additional environmental screening available ? meets mil-std-461c and mil-std-461d emc requirements ? protects against conducted susceptibility specified in mil-std-461c, cs01 and cs02 ? mil-prf-38534 element evaluated components figure 1 ? dvmd28f emi filter ( not to scale )
dvmd28 series 1x024dse 2 specifications (t case = -55c to +125c, v in = +28v 5%, full load, unless otherwise specified) absolute maximum ratings input voltage (continuous) 50 v dc storage temperature -65c to +150c input voltage (transient, 1 second) 80 volts lead solder temperature (10 seconds) 300c output current 7 amps weight (maximum) 63 grams power dissipation (full load, t case = +125c) 6 watts dvmd28 parameter conditions min typ max units static continuous 0 28 50 v input voltage 2 transient, 1 sec - - 80 v current 1,2,3 continuous 0 - 7 a output voltage 2 continuous v out = v in ? (i in x r dc ) v current 2,3 continuous 0 - 7 a dc resistance continuous - - 120 m ? power dissipation 2 continuous - - 6 w noise rejection f = 500 khz 40 - - db capacitance pin to case 25 - 55 nf isolation any pin to case, 500 v dc 100 - - m ? mtbf (mil-hdbk-217f) aif @ t c = 55c - 1.225 - mhrs notes: 1. derate lin early to 0 at 135c. 2. verified by qualification testing. 3. rated current applies at any voltage. block diagram 28v in pin 1 in com pin 5 case pin 4 28v out pin 2 out com pin 3 figure 2
dvmd28 series 1x024dse 3 connection diagrams 2 in com 4 inh1 1 28v in 7 +v out 8 out com load + - 28 vdc 2 28v out 3 out com 1 28v in 5 in com 4 dvmd28 emi filter 3 dvfl2800s dc-dc converter case 6 sync in 10 +s 9 -s figure 3 ? dvmd28 emi filter hookup with single converter
dvmd28 series 1x024dse 4 connection diagrams + - 28 vdc 2 28v out 3 out com 1 28v in 5 in com 4 dvmd28 emi filter case case 10 in com 2 inh 1 28v in 5 +v out 4 out com load 7, 8 dvtr2800s dc-dc converter 9 sync 6 +s 3 -s 10 in com 2 inh 1 28v in 5 +v out 4 out com load 7, 8 dvtr2800s dc-dc converter 9 sync 6 +s 3 -s figure 4 ? dvmd28 emi filter hookup with two converters
dvmd28 series 1x024dse 5 emi measurement method s connection diagrams figure 5 ? mil-std-461c measurement method (feedthrough capacitor) figure 6 ? mil-std-461d measurement method (lisn)
dvmd28 series 1x024dse 6 emi performance curves (t case = 25c, v in = +28v 5%, full load, unless otherwise specified) figure 7 ? mil-std-461c figure 8 ? mil-std-461c (2) dvtr2800s without emi filter (2 ) dvtr2800s with dvmd28 emi filter figure 9 ? mil-std-461d (2) dvtr2800s with dvmd28 emi filter
dvmd28 series 1x024dse 7 package specifications top view side view pin function 1 28v in 2 28v out 3 out com 4 case 5 in com bottom view figure 10 ? package and pinout (dimensional limits are 0.005? unless otherwise stated)
dvmd28 series 1x024dse 8 package pin description pin function description 1 28v in positive input voltage connection 2 28v out positive output voltage connection 3 out com output common connection 4 case case connection 5 in com input common connection
dvmd28 series 1x024dse 9 environmental screening (100% tested per mil-std-883 as referenced to mil-prf-38534) notes: 1. 100% r&r testing at ?55c, +25c, and +125 c with all test data included in product shipment. 2. pind test certificate of co mpliance included in product shipment. 3. radiographic test cert ificate of compliance and film(s) included in product shipment. screening mil-std-883 standard (no suffix) extended /es hb /hb class h /h class k /k non- destructive bond pull n/a ? products do not contain wirebonds n/a n/a n/a n/a n/a internal visual method 2017, 2032 internal procedure ? ? ? ? ? temperature cycling method 1010, condition c method 1010, -55c to 125c ? ? ? ? constant acceleration method 2001, 3000g, y1 direction method 2001, 500g, y1 direction ? ? ? ? pind method 2020, condition a 2 ? pre burn-in electrical 100% at 25c ? burn-in method 1015, 320 hours at +125c method 1015, 160 hours at +125c 96 hours at +125c 24 hours at +125c ? ? ? ? ? final electrical mil-prf-38534, group a 1 100% at 25c ? ? ? ? ? hermeticity method 1014, fine leak, condition a method 1014, gross leak, condition c dip (1 x 10 -3 ) ? ? ? ? ? ? ? ? ? radiography method 2012 3 ? external visual method 2009 ? ? ? ? ?
dvmd28 series 1x024dse 10 ordering information dvmd 28 f /hb - xxx 1 2 3 4 5 (1) (2) (3) (4) (5) product series nominal input voltage package option screening code 1,2 additional screening code dvmd 28 28 volts f flanged none /es /hb /h /k standard extended hb class h class k contact sales notes: 1. contact the vpt inc. sales department for availability of class h (/h) or class k (/k) qualified products. 2. vpt inc. reserves the right to ship higher screen ed or smd products to meet lower screened orders at our sole discretion unless specifically forbidden by customer contract. please contact your sales representative or the vpt inc. sales department for more information concerning additional environmental screening and testing, different input voltage, output voltage, power requirement, source inspection, and/or special element evaluation for space or other higher quality applications.
dvmd28 series 1x024dse 11 smd (standard microcircu it drawing) numbers standard microcircuit drawing (smd) dvmd28 series similar part number *t.b.d. dvmd28f/h do not use the dvmd28 series similar part number for smd product acquisition. it is listed for reference only. for exact specifications for the smd product, refer to the smd drawing. smd?s can be downloaded from the dscc website at http://www.dscc.dla.mil/programs/smcr/ . the smd number listed above is for mil-prf-38534 class h screening, standard gold plated lead finish, and no rha (radiation hardness assurance) level. please reference the smd for other screening levels, lead finishes, and radiation levels. contact information to request a quotation or place orders please contact your sales representative or the vpt inc. sales department at: phone : (425) 353-3010 fax : (425) 353-4030 e-mail : vptsales@vpt-inc.com all information contained in this datasheet is believed to be accurate, however, no responsibility is assumed for possible erro rs or omissions. the products or specifications cont ained herein are subject to change without notice.

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