Feb 25, 2014 #1 aminshafie Newbie level 6 Joined Apr 23, 2012 Messages 13 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,291 Activity points 1,347 Hi all,I need a ferrite transformer at 100KHZ please help me: Vin=230v Vout=5 Iout=40a