This part is a kind of semiconductor called M12JZ47.

Function of this product has SM12JZ47.

Manufacturers : Toshiba Semiconductor

Image and pinout :

Some of the text within the PDF file :

SM12GZ47,SM12JZ47,SM12GZ47A,SM12JZ47A TOSHIBA BI−DIRECTIONAL TRIODE THYRISTOR SILICON PLANAR TYPE SM12GZ47,SM12JZ47,SM12GZ47A,SM12JZ47A AC POWER CONTROL APPLICATIONS Unit: mm l Repetitive Peak off−State Voltage l R.M.S On−State Current l High Commutating (dv / dt) l Isolation Voltage : VIsol = 1500V AC : VDRM = 400, 600V : IT (RMS) = 12A MAXIMUM RATINGS CHARACTERISTIC Repetitive Peak Off−State Voltage and Repetitive Peak Reverse Voltage SM12GZ47 SM12GZ47A SM12JZ47 SM12JZ47A SYMBOL RATING 400 VDRM 600 IT (RMS) ITSM I t di / dt PGM PG (AV) VFGM IGM Tj Tstg VIsol 2 UNIT V R. M. S. On−tate Current (Full Sine Waveform TC = 72°C) Peak One Cylce Surge On−State Current (Non−Repetitive) I t Limit Value Critical Rate of Rise of On-State Current (Note 1) Peak [ ... ]

M12JZ47 PDF Datasheet Download