This part is a kind of semiconductor called BYV27-200.

Function of this product has Ultra fast low-loss controlled avalanche rectifiers.

Manufacturers : NXP

Image and pinout :

Some of the text within the PDF file :

DISCRETE SEMICONDUCTORS DATA SHEET handbook, 2 columns M3D116 BYV27 series Ultra fast low-loss controlled avalanche rectifiers Product specification Supersedes data of 1996 Oct 02 1997 Nov 24 Philips Semiconductors Product specification Ultra fast low-loss controlled avalanche rectifiers FEATURES • Glass passivated • High maximum operating temperature • Low leakage current • Excellent stability • Guaranteed avalanche energy absorption capability • Available in ammo-pack. DESCRIPTION Rugged glass SOD57 package, using a high temperature alloyed construction. BYV27 series This package is hermetically sealed and fatigue free as coefficients of expansion of all used parts are matched. 2/3 page k (Datasheet) LIMITING VALUES In accordance with the Absolute Maximum Rating S [ ... ]

BYV27-200 PDF Datasheet Download