25-Ball Wafer Level Chip Scale Package [WLCSP] (CB-25-3) Dimensions shown in millimeters a 0.600 0.555 0.510 2.295 2.245 2.195 SEATING PLANE 5 4 3 2 1 A BALL 1 IDENTIFIER B 0.287 0.267 0.247 0.23 0.20 0.17 C D 0.40 REF TOP VIEW (BALL SIDE DOWN) 1.60 REF E BOTTOM VIEW (BALL SIDE UP) 1.60 REF 081908-A 2.100 2.050 2.000