The BU931 is a high-voltage, high-current Silicon NPN Darlington transistor, ideal for demanding applications like automotive ignition coils and industrial controls. Built with rugged planar technology, it supports robust operation, fast switching, and high thermal stability, making it well-suited for heavy-duty environments and ignition coil driving.
Features
Very high voltage capability (up to 500 V collector-base)
Darlington configuration for high current gain
High current capacity for demanding loads
Rugged silicon structure for reliable performance
Fast switching suitable for inductive load applications
High junction-temperature tolerance for harsh environments