This part is a kind of semiconductor called M2LZ47.

Function of this product has SM2LZ47.

Manufacturers : Toshiba Semiconductor

Image and pinout :

Some of the text within the PDF file :

SM2LZ47 TOSHIBA BI−DIRECTIONAL TRIODE THYRISTOR SILICON PLANAR TYPE SM2LZ47 AC POWER CONTROL APPLICATIONS l Repetitive Peak Off−State Voltage : VDRM = 800V l R.M.S. On−State Current l High Commutation (dv / dt) l Isolation Voltage Unit: mm : IT (RMS) = 2A : (dv / dt) c = 5V / µs (Min.) : VISOL = 1500V AC MAXIMUM RATINGS CHARACTERISTIC Repetitive Peak Off−State Voltage R.M.S. On−State Current (Full Sine Waveform) Peak One Cycle Surge On−State Current (Non-Repetitive) I t Limit Value Critical Rate of Rise of On−State Current (Note) Peak Gate Power Dissipation Average Gate Power Dissipation Peak Gate Voltage Peak Gate Current Junction Temperature Storage Temperature Range Isolation Voltage (AC, t = 1min.) 2 SYMBOL VDRM IT (RMS) ITSM I t di / dt PGM PG ( [ ... ]

M2LZ47 PDF Datasheet Download