MS9BE miniature silicon solar cell by Ferranti. Package: 4.5 x 1.92 x 3.24mm plastic brick with two 3 x 0.8mm brass pins. Active area : 2.13 x 0.99mm Download Ferranti MS9BE datasheet: Status: RNOS (Rare New Old Stock) 1960's as used in punched tape & card reading machines RoHS compliant: no