This part is a kind of semiconductor called AZ23-C3.

Function of this product has DUAL ZENER DIODES.

Manufacturers : General Semiconductor

Image and pinout :

Some of the text within the PDF file :

AZ23-C2V7 THRU AZ23-C51 DUAL ZENER DIODES FEATURES SOT-23 .122 (3.1) .118 (3.0) .016 (0.4) 3 .056 (1.43) .052 (1.33) ♦ Dual Silicon Planar Zener Diodes, Common Anode ♦ The Zener voltages are graded according to the international E 24 standard. Other voltage tolerances and other Zener voltages are available upon request. ♦ The parameters are valid for both diodes in one case. ∆VZ and ∆rzj of the two diodes in one case is ≤ 5%. ♦ This diode is also available in other case styles and configurations including: the dual diode common cathode configuration with type designation DZ23, the single diode SOT-23 case with the type designation BZX84C, and the single diode SOD-123 case with the type designation BZT52C. .045 (1.15) .037 (0.95) .102 (2.6) .094 (2.4) Top View 1 2 max. .00 [ ... ]

AZ23-C3 PDF Datasheet Download