公开(公告)号：US20170179913A1

公开(公告)日：2017-06-22

申请号：US15248535

申请日：2016-08-26

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Ha Yoon SONG ,  Jong Yun LEE ,  Sung Ryong MA ,  Won Chul SIM ,  Young Seuck YOO ,  Byoung Hwa LEE ,  Young Jae KIM ,  Tae Chul HA ,  Hye Won BANG

IPC: H03H1/00 ,  H01F27/245 ,  H01F27/29 ,  H01F27/28

CPC classification number: H03H1/0007 ,  H01F17/0013 ,  H01F17/04 ,  H01F27/245 ,  H01F27/2804 ,  H01F27/292 ,  H01F2017/0093 ,  H01F2027/2809 ,  H03H7/427 ,  H03H2001/0057 ,  H03H2001/0085 ,  H03H2001/0092

Abstract: A common mode filter includes: a coil part including a plurality of coil layers, each coil layer having at least one coil and a lead terminal connected to a first end of the coil, and a conductive via connecting the lead terminals to each other; a first magnetic layer disposed on the coil part; a second magnetic layer disposed below the coil part; and external electrodes connected to the lead terminals and exposed to the surface of the common mode filter.