This part is a kind of semiconductor called BA315.
Function of this product has Low-voltage stabistor.
Manufacturers : NXP
Image and pinout :

Some of the text within the PDF file :
DISCRETE SEMICONDUCTORS DATA SHEET M3D176 BA315 Low-voltage stabistor Product specification Supersedes data of April 1992 File under Discrete Semiconductors, SC01 1996 Mar 21 Philips Semiconductors Product specification Low-voltage stabistor FEATURES • Low-voltage stabilization • Forward voltage range: 480 mV to 1050 mV • Total power dissipation: max. 350 mW. APPLICATIONS • Low-voltage stabilization e.g. – Bias stabilizer in class-B output stages – Clipping – Clamping – Meter protection. LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL VR IF Ptot Tstg Tj PARAMETER continuous reverse voltage continuous forward current total power dissipation storage temperature junction temperature Tamb = 25 °C CONDITIONS MIN. − − − −65 [ ... ]
BA315 PDF Datasheet Download
