®
BD235 BD236
BD237 BD238
COMPLEMENTARY SILICON POWER TRANSISTORS
s
STMicroelectronics PREFERRED
SALESTYPES
DESCRIPTION
The BD235 and BD237 are silicon epitaxial-base
NPN power transistors in Jedec SOT-32 plastic
package inteded for use in medium power linear
and switching applications.
The complementary PNP types are BD236 and
BD238 respectively.
SOT-32
3
2
1
INTERNAL SCHEMATIC DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
NPN
PNP
V
CBO
V
CER
V
CEO
V
EBO
I
C
I
CM
P
tot
T
stg
T
j
Collector-Base Voltage (I
E
= 0)
Collector-Base Voltage (R
BE
= 1KΩ)
Collector-Emitter Voltage (I
B
= 0)
Emitter-Base Voltage (I
C
= 0)
Collector Current
Collector Peak Current (t
p
< 5 ms)
Total Dissipation at T
c
= 25
o
C
Storage Temperature
Max. Operating Junction Temperature
BD235
BD236
60
60
60
5
2
6
25
-65 to 150
150
Value
BD237
BD238
100
100
80
V
V
V
V
A
A
W
o
o
Unit
C
C
For PNP types voltage and current values are negative.
February 2003
1/5
STMICROELECTRONICS [ STMICROELECTRONICS ]
