The 3DFS256M04VS1740 from 3D Plus is a Space Qualified Memory with Storage Capacity 128 Mb, Bit Size 128 Mbits, Radiation Dose 80 krad(Si) (Read Mode), 25 krad(Si) (Write Mode), Mass 2.40 gms, Voltage 2.3 to 3.6 V. Tags: Surface Mount. More details for 3DFS256M04VS1740 can be seen below.