mbs303Type MBS303 Historical Part Number S18141 Material CuSn6 Finish (Superior layer) electroplated . tin 5µm: ±2µm: Hardness HV 180 - 210 Solderability : IEC60068-2-20: SolderBuy MBS303-B-AX-0RAA with extended same day shipping times. View datasheets, stock and pricing, or find other Resistor Fixed Single-Through Hole.