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MMBTA42
Small signal NPN transistor
Features
Miniature SOT-23 plastic package for surface
mounting circuits
Tape and reel packaging
The PNP complementary type is MMBTA92
Applications
Video amplifier circuits (rgb cathode current
control)
SOT-23
Telephone wireline interface (hook switches,
dialer circuits)
Description Figure 1. Intenal schematic diagram
The device is manufactured in Epitaxial Planar
technology.
Table 1. Device summary
Order code Marking Package Packaging
MMBTA42 A42 SOT-23 tape and reel
November 2007 Rev 3 1/8
www.st.com 8
Electrical characteristics MMBTA42
1 Electrical characteristics
(Tcase = 25