The 3D3D16G16YB4751 from 3D Plus is a Space Qualified Memory with Storage Capacity 256 Mb, Bit Size 256M x 72 Bits, Radiation Dose 75 krad, Mass 8.90 gms, Voltage 1.35 to 1.5 V. Tags: Surface Mount. More details for 3D3D16G16YB4751 can be seen below.