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BD439/BD440
BD441/BD442
COMPLEMENTARY SILICON POWER TRANSISTORS
s SGS-THOMSON PREFERRED SALESTYPES
s COMPLEMENTARY PNP - NPN DEVICES
DESCRIPTION
The BD439 and BD441 are silicon epitaxial-base
NPN power transistors in Jedec SOT-32 plastic
package, intented for use in power linear and
switching applications.
The complementary PNP types are BD440, and 1
2
BD442 respectively. 3
SOT-32
INTERNAL SCHEMATIC DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
NPN BD439 BD441
PNP BD440 BD442
V CBO Collector-Base Voltage (I E = 0) 60 80 V
V CES Collector-Emitter Voltage (V BE = 0) 60 80 V
V CEO Collector-Emitter Voltage (I B = 0) 60 80 V
V EBO Emitter-Base Voltage (I C = 0) 5 V
IC Collector Current 4 A
I CM Collector Peak Current (t 10 ms) 7 A
IB Base Current 1 A
P tot Total Dissipation at T c 25 o C 36 W
o
T stg Storage Temperature -65 to 150 C
o
Tj Max. Operating Junction Temperature 150 C
For PNP types voltage and current values are negative.
May 1997 1/4
BD439/BD440/BD441/BD442
THERMAL DATA
o
R thj-case Thermal Resistance Junction-case Max 3.5 C/W
o
R thj-amb Thermal Resistance Junction-ambient Max 100 C/W
ELECTRICAL CHARACTERISTICS (Tcase = 25 oC unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
I CBO Collector Cut-off for BD439/440 V CB = 60 V 100