25-Ball Wafer Level Chip Scale Package [WLCSP] (CB-25-7) Dimensions shown in millimeters 2.58 2.54 SQ 2.50 5 BOTTOM VIEW (BALL SIDE UP) 2 3 4 1 A BALL A1 IDENTIFIER 2.00 REF B C 0.50 BSC D E TOP VIEW (BALL SIDE DOWN) PKG-003121 SEATING PLANE END VIEW 0.390 0.360 0.330 COPLANARITY 0.05 0.360 0.320 0.280 0.270 0.240 0.210 06-07-2013-A 0.660 0.600 0.540