August 2007 Rev 2 1/11
11
BU508AW
High voltage NPN power transistor for standard
definition CRT display
Features
■ State-of-the-art technology:
– Diffused collector “Enhanced generation”
■ Stable performances versus operating
temperature variation
■ Low base-drive requirement
■ Tight h
FE
range at operating collector current
■ High ruggedness
■ TO-247 semi-insulated power package
Applications
■ Horizontal deflection output for CRT TV
■ Switch mode power supplies for CRT TV
Description
The BU508AW is manufactured using diffused
collector in planar technology adopting new and
enhanced high voltage structure for updated
performance to the horizontal deflection stage.
Figure 1. Internal schematic diagram
TO-247
1
2
3
Table 1. Device summary
Order code Marking Package Packaging
BU508AW BU508AW TO-247 Tube
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