T
treez
Guest
Hello,
We wish to use the MSD1260T (180uH) common mode choke in our offline 150W linear LED driver.
It has a 1W Buck bias supply which is what is causing the common mode noise.
We cannot use a through hole common mode choke, because our PCB is all surface mount and cannot tolerate any PTH components due to cost pressure.
Do you think the closeness of the coils in the MSD1260T will mean we get emissions coupling from one coil to the other and thus not "seeing" the common mode inductance?
MSD1260T common mode choke:
https://www.coilcraft.com/pdfs/msd1260t.pdf
We wish to use the MSD1260T (180uH) common mode choke in our offline 150W linear LED driver.
It has a 1W Buck bias supply which is what is causing the common mode noise.
We cannot use a through hole common mode choke, because our PCB is all surface mount and cannot tolerate any PTH components due to cost pressure.
Do you think the closeness of the coils in the MSD1260T will mean we get emissions coupling from one coil to the other and thus not "seeing" the common mode inductance?
MSD1260T common mode choke:
https://www.coilcraft.com/pdfs/msd1260t.pdf