BUL742C View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'BUL742C' PDF : 7 Pages View PDF
BUL742C
BULB742C
High voltage fast-switching
NPN power transistor
Features
■ Low spread of dynamic parameters
■ High voltage capability
■ Minimum lot-to-lot spread for reliable operation
■ Very high switching speed
Applications
■ Electronic ballast for fluorescent lighting
■ Switch mode power supplies
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.
3
2
1
TO-220
123
I2PAK
Figure 1. Internal schematic diagram
Table 1. Device summary
Order code
Marking
BUL742C
BUL742C
BULB742C-1
BULB742C
Package
TO-220
I2PAK
Packaging
Tube
May 2008
Rev 3
1/12
www.st.com
12
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