STFN42
High voltage fast-switching NPN power transistor
Features
■ High voltage capability
■ Very high switching spee...
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.com
10
Electrical ratings
1 Electrical ratings
STFN42
Table 2. Absolute maximum ratings
Symbol
Parameter
Value
Unit
VCES Collector-emitter
voltage (VBE = 0)
700 V
VCEO Collector-emitter
voltage (IB = 0)
400 V
VEBO Emi...
