Chances are this will NEVER work as the Code Protect bits are under a layer of Aluminum, thereby making it opaque to UV light, and thus will never have the gate charge bled off. Like has been said many times before, you are now the proud owner of an expensive OTP part. Regards, Jim -----Original Message----- From: Brian Kraut To: PICLIST@MITVMA.MIT.EDU Date: Tuesday, June 01, 1999 10:46 PM Subject: UN-CODE PROTECTING >I remember some discussions on this list a while back about the ability >to erase JW parts that have hade code protection fuses accidently blown >by leaving them in the eraser for a long time. I have tried on several >parts for over 10 hours with no luck. Anyone had this work?