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2ST2121 Datasheet

High power PNP epitaxial planar bipolar transistor

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2ST2121
High power PNP epitaxial planar bipolar transistor
Preliminary data
Features
High breakdown voltage VCEO = 250 V
Complementary to 2ST5949
Fast switching speed
Typical ft = 25 MHz
Fully characterized at 125 oC
Applications
Audio power amplifier
1
2
TO-3
Description
The device is a PNP transistor manufactured
using new BiT-LA (Bipolar transistor for linear
amplifier) technology. The resulting transistor
shows good gain linearity behaviour.
Figure 1. Internal schematic diagram
Table 1. Device summary
Order code
2ST2121
Marking
2ST2121
Package
TO-3
Packaging
tray
July 2008
Rev 4
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
1/8
www.st.com
8


STMicroelectronics Electronic Components Datasheet

2ST2121 Datasheet

High power PNP epitaxial planar bipolar transistor

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Absolute maximun rating
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1 Absolute maximun rating
Table 2. Absolute maximum rating
Symbol
Parameter
VCBO
VCEO
VEBO
IC
ICM
PTOT
Tstg
TJ
Collector-base voltage (IE = 0)
Collector-emitter voltage (IB = 0)
Emitter-base voltage (IC = 0)
Collector current
Collector peak current (tP < 5ms)
Total dissipation at Tc = 25 °C
Storage temperature
Max. operating junction temperature
Table 3. Thermal data
Symbol
Parameter
Rthj-case Thermal resistance junction-case ______________ __max
2ST2121
Value
-250
-250
-6
-17
-34
250
-65 to 200
200
Value
0.7
Unit
V
V
V
A
A
W
°C
°C
Unit
°C/W
2/8


Part Number 2ST2121
Description High power PNP epitaxial planar bipolar transistor
Maker STMicroelectronics
Total Page 8 Pages
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