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BUL381D
BUL382D
HIGH VOLTAGE FAST-SWITCHING
NPN POWER TRANSISTORS
s SGS-THOMSON PREFERRED SALESTYPES
s HIGH VOLTAGE CAPABILITY
s LOW SPREAD OF DYNAMIC PARAMETERS
s MINIMUM LOT-TO-LOT SPREAD FOR
RELIABLE OPERATION
s VERY HIGH SWITCHING SPEED
s LARGE RBSOA
s INTEGRATED ANTIPARALLEL
COLLECTOR-EMITTER DIODE 3
2
1
APPLICATIONS
s ELECTRONIC TRANSFORMERS FOR
HALOGEN LAMPS TO-220
s ELECTRONIC BALLASTS FOR
FLUORESCENT LIGHTING
s SWITCH MODE POWER SUPPLIES

DESCRIPTION
The BUL381D and BUL382D are manufactured INTERNAL SCHEMATIC DIAGRAM
using high voltage Multi Epitaxial Planar
technology for high switching speeds and high
voltage capability.
The BUL series is designed for use in lighting
applications and low cost switch-mode power
supplies.

ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Uni t
V CES Collector-Emitter Voltage (V BE = 0) 800 V
V CEO Collector-Emitter Voltage (I B = 0) 400 V
V EBO Emitter-Base Voltage (I C = 0) 9 V
IC Collector Current 5 A
I CM Collector Peak Current (tp < 5 ms) 8 A
IB Base Current 2 A
I BM Base Peak Current (t p < 5 ms) 4 A
o
P t ot Total Dissipation at T c = 25 C 70 W
o
T stg St orage Temperature -65 to 150 C
o
Tj Max. Operating Junction Temperature 150 C

July 1997 1/6
BUL381D / BUL382D

THERMAL DATA
o
R t hj-ca se Thermal Resistance Junction-Case Max 1.78 C/W
o
R t hj- amb Thermal Resistance Junction-Ambient Max 62.5 C/W

ELECTRICAL CHARACTERISTICS (Tcase = 25 oC unless otherwise specified)
Symb ol Parameter Test Cond ition s Min. Typ . Max. Un it
I CES Collector Cut-off V CE = 800 V 100