Part Marking Information Vishay Siliconix DEVICE: TSOP-5/6 TSOP-5/6 ABWLL = Pin 1 Indicator1 AB = Part Number Code2 W = Week Code LL = Lot Code3 NOTES: 1. For dual symmetrical TSOP-6, additional dot will be marked at top right corner (pin 4). 2. Often the last two digits of the base part number. If not, see data sheet for code. 3. Year Code is designated by bar around the Lot Code. The current marking strategy is reflected. Contact your local sales representative for historical marking strategies for these packages. Document Number: 72761 07-Apr-04 www.vishay.com 1