LS Package 20-Pin Leadless Chip Carrier (Square .350 Inch, Hermetic) (Reference LTC DWG # 05-08-1260) .050 ± .005 (1.270 ± 0.127) .350 ± .005 (8.89 ± 0.127) .100 2.54 BSC .020 × 45° (0.508) REF .300 ± .004 (7.62 ± 0.102) SQ. TOP .003 – .015 (0.076 – 0.381) PIN 1 .350 ± .005 (8.89 ± 0.127) BOTTOM .006 – .022 (0.152 – 0.558) .050 (1.270) BSC .085 ± .008 (2.16 ± 0.203) .064 – .090 (1.626 – 2.286) .040 × 45° 3 PLCs (0.508) REF .015 (0.381) TYP .054 – .076 (1.371 – 1.930) .200 5.08 BSC L20(SQ) 0204