This part is a kind of semiconductor called M16JZ47.
Function of this product has SM16JZ47A.
Manufacturers : Toshiba Semiconductor
Image and pinout :
Some of the text within the PDF file :
SM16GZ47,SM16JZ47,SM16GZ47A,SM16JZ47A TOSHIBA BI−DIRECTIONAL TRIODE THYRISTOR SILICON PLANAR TYPE SM16GZ47,SM16JZ47,SM16GZ47A,SM16JZ47A AC POWER CONTROL APPLICATIONS Unit: mm l Repetitive Peak Off−State Voltage : VDRM = 400, 600V l R.M.S On−State Current l High Commutating (dv / dt) l Isolation Voltage : IT (RMS) = 16A : VISOL = 1500V AC MAXIMUM RATINGS CHARACTERISTIC SM16GZ47 SM16GZ47A SM16JZ47 SM16JZ47A SYMBOL RATING 400 VDRM 600 IT (RMS) ITSM I t di / dt PGM PG (AV) VGM IGM Tj Tstg VISOL 2 UNIT Repetitive Peak Off−State Voltage V R.M.S On−State Current (Full Sine Waveform Tc = 73°C) Peak One Cycle Surge On−State Current (Non−Repetitive) I t Limit Value Critical Rate of Rise of On−State Current (Note 1) Peak Gate Power Dissipation Average Gate [ ... ]