K18.D — 18 Lead Ceramic Metal Seal Flatpack Package Hermetic Packages for Integrated Circuits Package Outline Drawing K18.D 18 LEAD CERAMIC METAL SEAL FLATPACK PACKAGE Rev 2, 3/11 0.015 (0.381) PIN NO. 1 0.005 (0.127) ID OPTIONAL 1 2 0.040 (1.016 BSC) 0.476 (12.09) PIN NO. 1 0.456 (11.58) ID AREA ……