BCY58
BCY59
January 1989
LOW NOISE AUDIO AMPLIFIERS
DESCRIPTION
ABSOLUTE MAXIMUM RATINGS
Value
Symbol Parameter
BCY58 BCY59
Unit
V
CES
Collector-emitter Voltage (V
BE
=0) 32 45 V
V
CEO
Collector-emitter Voltage (I
B
=0) 32 45 V
V
EBO
Emitter-base Voltage (I
C
=0) 7 V
I
C
Collector Current 200 mA
I
B
Base Current 50 mA
P
tot
Total Power Dissipation at T
amb
≤ 25 °C
at T
case
≤ 45 °C
0.39
1
mW
W
T
stg
,T
j
Storage and Junction Temperature – 65 to 200 °C
The BCY58 and BCY59 are silicon planar epitaxial
NPN transistors in Jedec TO-18 metal case.
They are intended for use in audio input stages,
driver stages and low-noise input stages. The com-
plementary PNP types are respectively the BCY78
and BCY79.
TO-18
INTERNAL SCHEMATIC DIAGRAM
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