I have never had any problem with just 'grabbing a diode' and using it. I may be wrong but for the amount of time its going to be carrying current it may not matter much. Do correct me if I am wrong and have just been lucky previously. Steve -----Original Message----- From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of Goran Hosinsky Sent: 31 May 2006 08:24 To: Microcontroller discussion list - Public. Subject: [EE] Relay coil diode specifications What voltage and current specifications should the diode across the relay coil have for a relay pulling 400 mA at 15V dc? Goran, La Palma -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist