Just tore down one of my clamshells (complete with french keyboard ;) ) to check out this component after some probing testing and sleuthing on the internet it looks like its this part MMBZ5233B http://www.s-manuals.com/pdf/datasheet/m/m/mmbz5221b-mmbz5257b_fairchild.pdf a 6V Zener diode sadly...