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BULD741
High voltage fast-switching NPN power transistor
Features
■ High voltage capability ■ Low spread of dynamic parameters ■ Minimum lot-to-lot spread for reliable operation ■ Very high switching speed
Description
The device is manufactured using high voltage Multi-Epitaxial Planar technology for high switching speeds and high voltage capability.
Thanks to an increased intermediate layer, it has an intrinsic ruggedness which enables the transistor to withstand an high collector current level during breakdown condition, without using the transil protection usually necessary in typical converters for lamp ballast.
Applications
■ Electronic ballast for fluorescent lighting ■ Switch mode power supplies.
3 1
DPAK TO-252
IPAK TO-251
3
2 1
Figure 1. Internal schematic diagram
Table 1.
BULD741T4 Datasheet
