BUL49D BULB49D
High voltage fast-switching
NPN power
transistors
Features
■ High voltage capability ■ Low spread of dynamic parameters ■ Minimum lot-to-lot spread for reliable operation ■ Very high switching speed ■ High ruggedness
Applications
■ Electronic transformers for halogen lamps ■ Flyback and forward single
transistor low
power converters
Description
The devices are manufactured using high voltage multi-epitaxial planar technology for high switching speeds and high voltage capability.
The devices are designed for use in electronic transformer for halogen lamps.
3 2 1
TO-220
3 2 1
TO-220FP
3 1
D2PAK
123
I2PAK
Figure 1.
Internal schematic diagram
Table 1.
Device summary
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