Page 1
Features
3
2STA1837
PNP power bipolar transistor
Preliminary data
■ High breakdown voltage V
■ Complementary to 2STC4793
■ High transition frequency, typical f
CEO
= -230 V
= 70 MHz
T
Applications
■ Audio power amplifier
■ Drive stage amplifier
Description
This device is a PNP transistor manufactured
using new “PB-HDC” (power bipolar high density
current) technology. The resulting transistor
shows good gain linearity behavior.
2
1
TO-220FP
Figure 1. Internal schematic diagram
Table 1. Device summary
Order code Marking Package Packaging
2STA1837 2STA1837 TO-220FP Tube
March 2010 Doc ID 15402 Rev 2 1/7
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
www.st.com
7
Page 2
Electrical ratings 2STA1837
1 Electrical ratings
Table 2. Absolute maximum ratings
Symbol Parameter Value Unit
V
V
V
P
T
CBO
CEO
EBO
I
C
I
CM
TOT
STG
T
Collector-base voltage (IE = 0) -230 V
Collector-emitter voltage (IB = 0) -230 V
Emitter-base voltage (IC = 0) -5 V
Collector current -1 A
Collector peak current -2 A
Total dissipation at TC = 25 °C 20 W
Storage temperature -65 to 150 °C
Operating junction temperature 150 °C
J
Table 3. Thermal data
Symbol Parameter Value Unit
R
thJC
Thermal resistance junction-case Max 6.25 °C/W
2/7 Doc ID 15402 Rev 2
Page 3
2STA1837 Electrical characteristics
2 Electrical characteristics
T
= 25 °C unless otherwise specified.
case
Table 4. Electrical characteristics
Symbol Parameter Test conditions Min. Typ. Max. Unit
I
CBO
I
EBO
V
(BR)CEO
V
(BR)CBO
V
(BR)EBO
V
CE(sat)
V
BE
h
FE
f
C
CBO
1. Pulse test: pulse duration ≤ 300 µs, duty cycle ≤ 2 %
Collector cut-off current
(IE = 0)
Emitter cut-off current
(IC = 0)
Collector-emitter breakdown
(1)
voltage (IB = 0)
Collector-base breakdown
voltage (I
Emitter-base breakdown
(1)
voltage (I
Collector-emitter saturation
(1)
= 0)
E
= 0)
C
voltage
Base-emitter voltage IC = -0.5 A V
DC current gain IC = -0.1 A V
Transition frequency IC = -0.1 A V
T
Collector-base capacitance
(IE = 0)
VCB = -230 V -1 µA
VEB = -5 V -1 µA
= -10 mA -230 V
I
C
= -100 µA -230 V
I
C
= -1 mA -5 V
I
E
I
= -0.5 A IB = -50 mA -1 V
C
V
CB
= -5 V -1 V
CE
= -5 V 100 320
CE
= -10 V 70 MHz
CE
= -10 V f = 1 MHz 30 pF
Doc ID 15402 Rev 2 3/7
Page 4
Package mechanical data 2STA1837
3 Package mechanical data
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK
®
packages, depending on their level of environmental compliance. ECOPACK®
®
is an ST trademark.
4/7 Doc ID 15402 Rev 2
Page 5
2STA1837 Package mechanical data
Table 5. TO-220FP mechanical data
mm.
Dim.
Min. Typ. Max.
A4.4 4.6
B2.5 2.7
D2.5 2.75
E0.45 0.7
F0.75 1
F1 1.15 1.70
F2 1.15 1.70
G4.95 5.2
G1 2.4 2.7
H 10 10.4
L2 16
L3 28.6 30.6
L4 9.8 10.6
L5 2.9 3.6
L6 15.9 16.4
L7 9 9.3
Dia 3 3.2
Figure 2. TO-220FP drawing
L7
A
B
Dia
L6
H
L2
D
L5
F2
F1
L4
E
F
G
G1
L3
7012510_Rev_K
Doc ID 15402 Rev 2 5/7
Page 6
Revision history 2STA1837
4 Revision history
Table 6. Document revision history
Date Revision Changes
13-Feb-2009 1 Initial release.
01-Mar-2010 2
Document status promoted from target specification to
preliminary data, updated package mechanical data.
6/7 Doc ID 15402 Rev 2
Page 7
2STA1837
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