scope this specification applies to the pb free high current type smd inductors for mscdri-4d28-series product indentification mscdri - 4d28 - 100 m product code dimensions code inductance code tolerance code (1) shapes and dimensions a: 4.70 0.3 mm b: 4.70 0.3 mm c: 3.00 max. mm d: 4.50 typ. mm e: 4.50 typ. mm f: 1.50 typ. mm (2) electrical specifications see table 1 test instruments l : hp 4284a precision lcr meter (or equivalent) rdc : chroma model 16502 milliohmmeter (or equivalent) (3) characteristics (3)-1 ambient temperature ......... 60 max. (3)-2 operate temperature range ...... 40 125 (including self temp. rise) (3)-3 storage temperature range ...... 40 125 mscdri-4d28-series page 1/8 mag.layers
table 1 inductance percent test resistance rated dc current l( h) tolerance frequency rdc( )max. 1.0 n 100khz/0.25v 23.6m 1r0 1.2 n 100khz/0.25v 23.6m 1r2 1.8 m,n 100khz/0.25v 27.5m 1r8 2.2 m,n 100khz/0.25v 31.3m 2r2 2.7 n 100khz/0.25v 43.3m 2r7 3.3 n 100khz/0.25v 49.2m 3r3 3.9 n 100khz/0.25v 64.8m 3r9 4.7 m,n 100khz/0.25v 72.0m 4r7 5.6 m,n 100khz/0.25v 0.1009 5r6 6.8 m,n 100khz/0.25v 0.1089 6r8 8.2 m,n 100khz/0.25v 0.1175 8r2 10 m,n 100khz/0.25v 0.1283 100 12 m,n 100khz/0.25v 0.1316 120 15 m,n 100khz/0.25v 0.1490 150 18 m,n 100khz/0.25v 0.1660 180 22 m,n 100khz/0.25v 0.2350 220 27 m,n 100khz/0.25v 0.2610 270 33 m,n 100khz/0.25v 0.3313 330 39 m,n 100khz/0.25v 0.3837 390 47 m,n 100khz/0.25v 0.5870 470 56 m,n 100khz/0.25v 0.6245 560 68 m,n 100khz/0.25v 0.6990 680 82 m,n 100khz/0.25v 0.9148 820 100 k,m 100khz/0.25v 1.02 101 120 k,m 100khz/0.25v 1.27 121 150 k,m 100khz/0.25v 1.35 151 180 k,m 100khz/0.25v 1.54 181 specify the inductance tolerance,k( 10%),m( 20%),n( 30%) idc : based on inductance change ( l/lo drop 35% max.) @ambient temperature 25 and based on temperature rise ( t 40 typ.) page-2/8 mscdri-4d28-series mscdri-4d28-1r0 2.56 0.24 0.22 0.27 0.70 0.58 1.12 1.04 1.00 idc(a) 0.35 0.32 0.76 0.72 0.84 1.57 1.44 1.32 0.29 0.56 0.50 0.48 0.41 1.17 2.56 2.20 2.04 1.60 mscdri-4d28-120 mscdri-4d28-180 mscdri-4d28-121 mscdri-4d28-150 mscdri-4d28-220 mscdri-4d28-330 mscdri-4d28-270 mscdri-4d28-390 mscdri-4d28-560 mscdri-4d28-820 mscdri-4d28-470 mscdri-4d28-680 mscdri-4d28-101 mscdri-4d28-151 mscdri-4d28-181 marking maglayers pt/no. mscdri-4d28-6r8 mscdri-4d28-1r2 mscdri-4d28-4r7 mscdri-4d28-5r6 mscdri-4d28-1r8 mscdri-4d28-2r2 mscdri-4d28-100 mscdri-4d28-2r7 mscdri-4d28-3r3 mscdri-4d28-3r9 mscdri-4d28-8r2 mag.layers
(4) reliability test method mechanical test item specification test details substrate bending l/lo Q 5% the sample shall be soldered onto the printed circuit board in figure 1 and a load applied unitil the figure in the arrow there shall be direction is made approximately 3mm.(keep time 30 seconds) no mechanical pcb dimension shall the page 7/9 damage or elec- f(pressurization) trical damege. vibration l/lo Q 5% the sample shall be soldered onto the printed circuit board and when a vibration having an amplitude of 1.52mm there shall be and a frequency of from 10 to 55hz/1 minute repeated should no mechanical be applied to the 3 directions (x,y,z) for 2 hours each. damage. (a total of 6 hours) solderability new solder flux (rosin, isopropyl alcohol{jis-k-1522}) shall be coated more than 90% over the whole of the sample before hard, the sample shall then be preheated for about 2 minutes in a temperature of 130 150 and after it has been immersed to a depth 0.5mm below for 3 0.2 seconds fully in molten solder m705 with a temperature of 245 5 . more than 90% of the electrode sections shall be couered with new solder smoothly when the sample is taken out of the solder bath. page-3/8 mscdri-4d28-series pressure rod figure-1 mag.layers
mechanical test item specification resistance to there shall be temperature profile of reflow soldering soldering heat no damage or (reflow soldering) problems. the specimen shall be passed through the reflow oven with the condition shown in the above profile for 1 time. the specimen shall be stored at standard atmospheric conditions for 1 hour, after which the measurement shall be made. electrical test item specification test details insulation there shall be dc 100v voltage shall be applied across this sample of top resistance no other surface and the terminal. damage or the insulation resistance shall be more than 1 10 8 . problems. dielectric there shall be ac 100v voltage shall be applied for 1 minute acrosset the top withstand no other surface and the terminal of this sample voltage damage or problems. temperature l/l20 Q 10% the test shall be performed after the sample has stabilized in characteristics 0 2000 ppm/ an ambient temperature of -20 to +85 ,and the value calculated based on the value applicable in a normal temperature and narmal humidity shall be l/l20 Q 10%. page-4/8 mscdri-4d28-series sodering temperature ( ) soldering (peak temperature 260 3 10 sec slow cooling (stored at room temperature) 30 sec min (230 +0 ) 300 250 200 150 100 50 2 min 10 sec. 2 min. or more pre-heating 150 ~ 180 mag.layers
enviroment characteristics test item specification high temperature l/lo Q 5% the sample shall be left for 96 4 hours in an atmospere with storage a temperature of 85 2 and a normal humidity. there shall be upon completion of the measurement shall be made after the no mechanical sample has been left in a normal temperature and normal damage. humidity for 1 hour. low temperature l/lo Q 5% the sample shall be left for 96 4 hours in an atmosphere with storage a temperature of -25 3 . there shall be upon completion of the test, the measurement shall be made no mechanical after the sample has been left in a normal temperature and damage. normal humidity for 1 hour. change of l/lo Q 5% the sample shall be subject to 5 continuos cycles, such as shown temperature in the table 2 below and then it shall be subjected to standard there shall be atmospheric conditions for 1 hour, after which measurement no other dama- shall be made. ge of problems table 2 temperature duration 25 3 (themostat no.1) standard atmospheric 85 2 (themostat no.2) standard atmospheric moisture storage l/lo Q 5% the sample shall be left for 96 4 hours in a temperature of 40 2 and a humidity(rh) of 90 95%. there shall be upon completion of the test, the measurement shall be made no mechanical after the sample has been left in a normal temperature and damage. normal humidity more than 1 hour. test conditions the sample shall be reflow soldered onto the printed circuit board in every test. page-5/8 mscdri-4d28-series no.1 no.2 no.2 no.1 1 2 3 4 30 min. 30 min. mag.layers
(5) land dimension (ref.) pcb: glass epoxy t 1.6mm (5)-1 land pattern dimensions (standard pattern) unit : mm (5)-2 substrate bending test bending test board page-6/8 mscdri-4d28-series mag.layers 5.3 1.5 5.3
(6) packaging (6)-1 carrier tape dimensions (mm) (6)-2 taping dimensions (mm) page-7/8 mscdri-4d28-series unreeling direction mag.layers
(6)-3 reel dimensions (mm) (6)-4 quantity 2000pcs/reel the products are packaged so that no damage will be sustained. page-8/8 mscdri-4d28-series mag.layers
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