scope this specification applies to the pb free high current type smd inductors for msi-700705f-series product indentification msi -700705f -r15 m product code dimensions code inductance code tolerance code (1) shapes and dimensions a: 7.0 max. mm b: 7.0 max. mm c: 4.96 max. mm d: 1.52 typ. mm e: 2.49 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 idc1 : ch3302/g lcr meter ch1320,ch1320s bias current source(or equivalent) msi-700705-series page 1/8 mag.layers
table 1 inductance percent test resistance rated dc current l( h) tolerance frequency rdc(m ) idc1(a) idc2(a) 0.072 m,n 100khz/0.1v 0.32 9.4% 58 31 72n 0.10 m,n 100khz/0.1v 0.32 9.4% 46 31 r10 0.15 m,n 100khz/0.1v 0.32 9.4% 30 31 r15 specify the inductance tolerance,m( 20%),n( 30%) idc1 based on inductance change ( l/lo drop 20% typ.)@ ambient temp. 25 idc2 based on temperature rise ( t 40 typ.) rated dc current the less value which is idc1 or idc2 . the nominal dcr is measured from point a to point b . msi-700705-series page 1/8 msi-700705-r10 rdc test point marking maglayers pt/no. msi-700705-r15 msi-700705-72n mag.layers a b
(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. msi-700705-series page 3/8 msi-700705-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 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 msi-700705-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 msi-700705-series no.1 no.2 no.2 no.1 1 2 3 4 30 min. 30 min. mag.layers 1 2 3 4 30 min. 30 min.
(5) land dimension (ref.) pcb: glass epoxy t 1.6mm (5)-1 land pattern dimensions(mm) (standard pattern) unit:mm (5)-2 substrate bending test bending test board msi-700705-series page 6/8 msi-700705-series mag.layers
(6) packaging (6)-1 carrier tape dimensions (mm) (6)-2 taping dimensions (mm) page 7/8 msi-700705-series unreeling direction mag.layers
(6)-3 reel dimensions (mm) (6)-4 quantity 1000pcs/reel the products are packaged so that no damage will be sustained. page 8/8 msi-700705-series mag.layers
typical electrical characteristics inductance vs. dc current@100khz/0.1v ambient temperature : 25 temperature rise vs. dc current attachment-1 msi-700705-series mag.layers msi-700705-series 0.00 0.04 0.08 0.12 0.16 0.20 0 10 20 30 40 50 60 70 80 dc current(a) inductance(uh) 72n r15 r10 msi-700705-series 0 10 20 30 40 50 60 70 0 10 20 30 40 50 60 dc current(a) temperature( )
|
