STMicroelectronics-2STA2121
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2S
T
A
2121
High power PNP epitaxial planar bipolar transistor
Features
I
High breakdown voltage V
= -250 V
CEO
I
Complementary to 2STC5949
I
Typical f = 25 MHz
t
o
I
Fully characterized at 125
C
Application
I
Audio power amplifier
TO-264
Description
The device is a PNP transistor manufactured
using new Bi
T
–
LA (Bipolar transistor for linear
amplifier) technology. The resulting transistor
shows good gain linearity behaviour.
Figure
. Internal
schematic diagram
T
a
ble 1.
Device summary
Order code
Marking
Package
Packaging
2S
T
A
2121
2S
T
A
2121
TO-264
T
u
be
November 2008
Rev 3
1/8
8
Electrical ratings
2STA2121
1
Electrical ratings
Table 2.
Symbol
Absolute maximum rating
Parameter
Value
Unit
V
V
V
Collector-base voltage (I
= 0)
E
-250
-250
-6
V
V
CBO
CEO
EBO
Collector-emitter voltage (I
= 0)
B
Emitter-base voltage (I
= 0)
C
V
I
Collector current
-17
A
C
I
Collector peak current (t
< 5ms)
P
-34
A
CM
P
T
o
tal dissipation at T
= 25 °C
c
220
W
°C
°C
TOT
T
Storage temperature
-65 to 150
150
stg
T
Max. operating junction temperature
J
Table 3.
Symbol
Thermal data
Parameter
Value
Unit
R
Thermal resistance junction-case
___ __
max
0.568
°C/W
thj-case
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2STA2121
Electrical characteristics
2
Electrical characteristics
(T
case
= 25 °C; unless otherwise specified)
Table 4.
Symbol
Electrical characteristics
Parameter
Test conditions
Min. Typ. Max. Unit
Collector cut-off current
V
E
I
= -250 V
CB
-5
-5
µA
CBO
(I =
0)
Emitter cut-off current
I
V
= -6 V
EB
µA
V
EBO
(I =
0)
C
Collector-emitter
breakdown voltage (I
= 0)
(1)
(BR)CEO
V
V
I =
-50 mA
C
-250
-250
-6
B
Collector-base breakdown
voltage (I
= 0)
V
I =
-100 µA
C
V
(BR)CBO
(1)
(BR)EBO
E
Emitter-base breakdown
voltage (I
= 0)
I =
-1 mA
E
V
C
Collector-emitter saturation
voltage
(1)
V
I =
-8 A
C
I =
-800 mA
B
-3
V
V
CE(sat)
(1)
V
Base-emitter voltage
I =
-7 A
C
V
= -5 V
-1.5
160
BE
CE
80
35
I =
-1 A
C
V
V
= -5 V
= -5 V
CE
CE
h
DC current gain
FE
= -7 A
f
T
r
ansition frequency
I =
-1 A
C
V =
-5 V
CE
25
MHz
T
1. Pulsed
duration = 300 µs, duty cycle
≤
1.5%
3/8
Electrical characteristics
2STA2121
2.1
Electrical characteristics (curves)
Figure 2.
Figure 4.
Figure 6.
Safe operating area
Figure 3.
Derating curve
Output characteristics
Figure 5.
D
urrent gain
Collector-emitter saturation
Figure 7.
voltage
Base-emitter voltage
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2STA2121
Package mechanical data
3
Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECO
P
A
CK®
packages. These packages have a Lead-free second level interconnect . The category of
second level interconnect is marked on the package and on the inner box label, in
compliance with JEDEC Standard JESD97. The maximum ratings related to soldering
conditions are also marked on the inner box label. ECO
P
ACK is an ST trademark.
5/8
Package mechanical data
2STA2121
TO-264 Mechanical data
mm.
Typ
Dim.
Min.
Max.
A
A1
b
4.
8
0
5.20
2.50
3
.10
0.
9
0
1.0
2.5
1.25
b
1
b
2
c
2.
8
0.50
25.6
0.60
0.
8
5
26.4
D
E
1
9
.
8
0
5.15
20.20
5.75
20.50
2.70
3
.65
e
L
1
9
.50
2.
3
0
L1
øP
3
.55
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2STA2121
Revision history
4
Revision history
Table 5.
Date
Document revision history
Revision
Changes
23-Nov-2007
08-May-2008
12-Nov-2008
1
2
3
Initial release
Added new graphics.
Document status promoted from preliminary data to datasheet
7/8
2STA2121
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