This part is a kind of semiconductor called VB027.

Function of this product has HIGH VOLTAGE IGNITION COIL DRIVER POWER I.C..

Manufacturers : STMicroelectronics

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® VB027 / VB027(011Y) / VB027(012Y) HIGH VOLTAGE IGNITION COIL DRIVER POWER I.C. TYPE VB027 VB027(011Y) VB027(012Y) Vcl(min) 300V Icl(max) 9A Id(on)max 130mA PRIMARY COIL VOLTAGE INTERNALLY SET s COIL CURRENT LIMIT INTERNALLY SET s LOGIC LEVEL COMPATIBLE INPUT s DRIVING CURRENT QUASI PROPORTIONAL TO COLLECTOR CURRENT s DOUBLE FLAG-ON COIL CURRENT s PENTAWATT HV PENTAWATT HV (011Y) PENTAWATT HV (012Y) DESCRIPTION The VB027, VB027(011Y), VB027(012Y) is a high voltage power integrated circuit made using the STMicroelectronics VIPower™ technology, with vertical current flow power darlington and logic level compatible driving circuit. Built-in protection circuit for coil current limiting and collector voltage clamping allows the device to be used as smart, high voltage, high current [ ... ]

VB027 PDF Datasheet Download