mbs303MBS303-B-AX-0RAA · Mfr. #:. MBS303-B-AX-0RAA · Mfr.: Vitrohm · Description: Resistor Hardware Dummy pin · Datasheet: MBS303-B-AXType MBS303 Historical Part Number S18141 Material CuSn6 Finish (Superior layer) electroplated . tin 5µm: ±2µm: Hardness HV 180 - 210 Solderability : IEC60068-2-20: Solder