SEMICONDUCTOR KTC5027F MARKING SPECIFICATION TO-220IS PACKAGE 1. Marking method Laser Marking or Ink Marking. 2. Marking 1 K 2 C5027F O 3 2006. 7. 18 601 4 No. Item Marking Description 1 KEC K KEC CORP. 2 Device Name C5027F KTC5027F 3 hFE Grade O N,R,O 4 Lot No. 601 Revision No : 0 6 Year 0~9 : 2000~2009 01 Week 01 : 01st Week 1/1