BC394
January 1989
HIGH VOLTAGE AMPLIFIER
The BC394 is a silicon planar epitaxial NPN transis-
tor in Jedec TO-18 metal case, designed for general
purpose high-voltage and video amplifier applica-
tions.
The complementary PNP type is the BC393.
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Val ue
Unit
V
CBO
Collector-base Voltage (I
E
= 0)
180
V
V
CEO
Collector-emitter Voltage (I
B
= 0)
180
V
V
EBO
Emitter-base Voltage (I
C
= 0)
6
V
I
C
Collector Current
100
mA
P
t o t
Total Power Dissipation at T
amb
25
C
at T
c as e
25
C
0.4
1.4
W
W
T
st g
Storage Temperature
55 to 200
C
T
j
Junction Temperature
200
C
DESCRIPTION
TO-18
INTERNAL SCHEMATIC DIAGRAM
1/5
ELECTRICAL CHARACTERISTICS (T
amb
= 25
C unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
I
CB O
Collector Cutoff Current
(I
E
= 0 )
V
CB
= 100 V
V
CB
= 100 V
T
amb
= 150
C
50
50
nA
A
V
( BR) CBO
Collector-base Breakdown
Voltage (I
E
= 0 )
I
C
= 100
A
180
V
V
(BR) CEO
*
Collector-emitter Breakdown
Voltage (I
B
= 0 )
I
C
= 10 mA
180
V
V
( BR) EBO
Emitter-base Breakdown
Voltage (I
C
= 0 )
I
E
= 100
A
6
V
V
CE (s at ) *
Collector-emitter Saturation
Voltage
I
C
= 10 mA
I
C
= 50 mA
I
B
= 1 mA
I
B
= 5 mA
200
400
300
mV
mV
V
BE ( sat ) *
Base-emitter Saturation
Voltage
I
C
= 10 mA
I
C
= 50 mA
I
B
= 1 mA
I
B
= 5 mA
750
850
900
mV
mV
h
F E
*
DC Curent Gain
I
C
= 1 mA
I
C
= 10 mA
V
CE
= 10 V
V
CE
= 10 V
30
85
100
f
T
Transition frequency
I
C
= 10 mA
V
CE
= 10 V
50
95
MHz
C
CBO
Collector-base
Capacitance
I
E
= 0
f = 1 MHz
V
CB
= 10 V
5
pF
* Pulsed : pulse duration = 300
s, duty cycle = 1 %.
DC Current.
Collector-emitter Saturation Voltage.
THERMAL DATA
R
t h j-c ase
R
t h j -amb
Thermal Resistance Junction-case
Thermal Resistance Junction-ambient
M a x
M a x
125
440
C/W
C/W
BC394
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Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectonics.
1994 SGS-THOMSON Microelectronics - All Rights Reserved
SGS-THOMSON Microelectronics GROUP OF COMPANIES
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