Look in the data sheet the leads are formed so it fits a vertical heat sink= .. If you want it mounted like your drawing consider the 'Q' package yes I kno= w its SMD but its all preformed for you and will fit straight out of the tube= .. Steve -----Original Message----- From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of V G Sent: 26 June 2011 06:47 To: PICLIST Subject: [EE] Mounting TO-220 5 lead Hi all, I want to know what pattern to use on my PCB for a TO-220 5 lead regulator. Specifically, this part: http://cds.linear.com/docs/Datasheet/1529fb.pdf Ideally, I want to mount it like this (attached png). Would I be able to mount it like in the attached picture? How would I bend the leads properly? --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .