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STFN42
High voltage fast-switching NPN power transistor
Features
■ High voltage capability
■ Very high switching speed
t(s)Applications c■ Electronic ballasts for fluorescent lighting u■ Battery charger ProdDescription teThis device is a high voltage fast-switching NPN lepower transistor, manufactured using high voltage omulti-epitaxial planar technology for high sswitching speeds. ObIt employs a cellular emitter structure with planar -edge termination to enhance switching speeds, t(s)while maintaining a wide RBSOA.
4 3
2 1
SOT-89
Figure 1. Internal schematic diagram
C (2, 4)
(1) B
Obsolete Produc E (3)
Table 1. Device summary Order code STFN42
Marking N42
Packages SOT-89
Packaging Tape and reel
February 2012
Doc ID 12193 Rev 3
1/10
www.st.
STFN42 Datasheet
