®
BD433/5/7
BD434/6/8
COMPLEMENTARY SILICON POWER TRANSISTORS
s
s
STMicroelectronics PREFERRED
SALESTYPE
COMPLEMENTARY PNP - NPN DEVICES
DESCRIPTION
The BD433, BD435, and BD437 are silicon
epitaxial-base NPN power transistors in Jedec
SOT-32 plastic package, intented for use in
medium power linear and switching applications.
The BD433 is especially suitable for use in
car-radio output stages.
The complementary PNP types are BD434,
BD436, and BD438 respectively.
3
2
1
SOT-32
INTERNAL SCHEMATIC DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
NPN
PNP
V
CBO
V
CES
V
CEO
V
EBO
I
C
I
CM
I
B
P
tot
T
stg
T
j
Collector-Base Voltage (I
E
= 0)
Collector-Emitter Voltage (V
BE
= 0)
Collector-Emitter Voltage (I
B
= 0)
Emitter-Base Voltage (I
C
= 0)
Collector Current
Collector Peak Current (t
≤
10 ms)
Base Current
Total Dissipation at T
c
≤
25
o
C
Storage Temperature
Max. Operating Junction Temperature
BD433
BD434
22
22
22
Value
BD435
BD436
32
32
32
5
4
7
1
36
-65 to 150
150
BD437
BD438
45
45
45
V
V
V
V
A
A
A
W
o
o
Unit
C
C
For PNP types voltage and current values are negative.
February 2003
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