SEMICONDUCTOR 2N5401 MARKING SPECIFICATION TO-92 PACKAGE 1. Marking method Laser Marking 2. Marking 2N 1 5401 K 3 No. Item 816 2 4 Marking Description 2N Series Name 5401 Device Name KEC K KEC CORP. Lot No. 816 Device Name 1998. 6. 23 Revision No : 0 8 Year 0~9 : 2000~2009 16 Week 16 : 16th Week 1/1