... package , such as 8-lead, 14 lead, 16 lead, 18 lead, 22 lead, 24 lead and 28 lead and 40-lead, etc ... Lid.350*.185CERDIP18-288-018.89*4.7022.61*7.32.350*.185.890*.2883007.320.35±0.0320DIP 20L Lid ... Lid.470*.190CERDIP24-288-0111.94*4.8031.75*7.32.470*.1901.25*.288300Narrow0.38±0.0324DIP 24L Wide Lid ... Lid .470*.191CERDIP28-288-0110.16*4.7836.83*7.32.400*.1881.45*.288300Narrow0.41±0.0328DIP 28L Optical Window ...