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BCY79
LOW NOISE AUDIO AMPLIFIERS
DESCRIPTION
The BCY79 is a silicon planar epitaxial PNP
transistors in Jedec TO-18 metal case. They are
designed for use in audio driver and low-noise
input stages.
The complementary NPN type is the BCY59.
TO-18
INTERNAL SCHEMATIC DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V CES Collector-Emitter Voltage (V BE = 0) -45 V
V CEO Collector-Emitter Voltage (I B = 0) -45 V
V EBO Emitter-Base Voltage (I C = 0) -5 V
IC Collector Current -200 mA
I CM Collector Peak Current -20 mA
o
P t ot Total Dissipation at T amb 25 C 390 mW
o
at T case 45 C 1 W
o
T stg St orage Temperature -65 to 150 C
o
Tj Max. Operating Junction Temperature 150 C
November 1997 1/6
BCY79
THERMAL DATA
o
R t hj-ca se Thermal Resistance Junction-Case Max 150 C/W
o
R t hj- amb Thermal Resistance Junction-Ambient Max 450 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 = -35 V -2 -20 nA
Current (V BE = 0) V CE = -45 V -100 nA
o
V CE = -35 V T amb = 150 C -10