The 3D4D32G72LB2805 from 3D Plus is a Space Qualified Memory with Storage Capacity 512 Mb, Bit Size 512M x 72 Bits, Radiation Dose 100 krad, Mass 3.80 gms, Voltage 1.2 to 2.5 V. Tags: Surface Mount. More details for 3D4D32G72LB2805 can be seen below.