At 09:55 AM 3/18/2006, Russell McMahon wrote: >Has anyone successfully heat sunk 1N400x diodes? I have. Stand the diodes up on end. One end goes into the PCB. The other end goes into a strip of 16 gauge copper punched or drilled with the correct size holes at the correct spacing. Solder quickly so as not to destroy the diodes - I used to use my old Weller soldering gun or a 100W Weller soldering iron with large tip. I've done it 2 ways: 1) the strip of copper (1/2" wide or so) is parallel to the PCB or 2) the strip of copper is bent into an "L" shape. The short part of the "L" is bolted to the PCB, the long part is right next to the diodes. The diodes are inserted vertically into the PCB and soldered. The free end of the diode leads are folded over the copper strip and soldered. I see the same thing done in modern switch-mode power supplies. dwayne -- Dwayne Reid Trinity Electronics Systems Ltd Edmonton, AB, CANADA (780) 489-3199 voice (780) 487-6397 fax Celebrating 22 years of Engineering Innovation (1984 - 2006) .-. .-. .-. .-. .-. .-. .-. .-. .-. .- `-' `-' `-' `-' `-' `-' `-' `-' `-' Do NOT send unsolicited commercial email to this email address. This message neither grants consent to receive unsolicited commercial email nor is intended to solicit commercial email. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist