[sci.electronics] Unknown Chip

louis@aplpy.jhuapl.edu (Louis Vasquez) (03/13/91)

	I have a chip from my Macintosh switching power supply.
No one knows what this chip is or can even suggest a replacement.
The chip is an IK1H4.  It's dimensions are about 1"x1"x1mm and it
is vertical. The pins are all on one side, and it has bumps on
it here and there. It's got 160V going into it.
	Any ideas on what this does?
						Lou,
					louis@aplpy.jhuapl.edu