Product Code: BC557B Manufacturer: TOSHIBA Semiconductors Product Type: PNP Amplifier Transistor / General Purpose Mounting: Through-hole Product Series: BC55xx
From 0,0700 
Manufacturer: JIANGSU CHANGJING ELECTRONICS TECHNOLOGY CO., LTD (JSCJ) Product Type: VOLTAGE REGULATOR Mounting: THROUGH-HOLE (TO-92 PACKAGE) Product Series: CJ78L12 RoHS: N/A
From 0,0450