BUY49S
SILICON NPN TRANSISTOR
a73 SGS-THOMSON PREFERRED SALESTYPE
a73 NPN TRANSISTOR
a73 FAST SWITCHING SPEED
a73 LOW COLLECTOR EMITTER SATURATION
APPLICATIONS
a73 GENERAL PURPOSE SWITCHING
DESCRIPTION
The BUY49S is a silicon epitaxial planar NPN
transistor in jedec TO-39 package. It is used in
high-current switching applications up to 3 A.
INTERNAL SCHEMATIC DIAGRAM
June 1997
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
CBO
Collector-Base Voltage (IE = 0) 250 V
VCEO Collector-Emitter Voltage (IB = 0) 200 V
VEBO Emitter-Base Voltage (IC = 0) 6 V
I
C
Collector Current 3 A
I
CM
Collector Peak Current 5 A
P
tot
Total Power Dissipation at T
amb
≤ 25
o
C10W
T
stg
Storage Temperature - 65 to 200
o
C
Tj Max Operating Junction Temperature 200
o
C
TO-39
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