NTE179
Germanium PNP Transistor
Audio Power Amplifier, High Current Switch
Description:
The NTE179 is a PNP type germainum transistor in a TO3 type case designed for highcurrent switch-
ing applications requiring low saturation voltages, fast switching times, and good safe operating
conditions.
Features:
D
Low CollectorEmitter Saturation Voltage:
V
CE(sat)
= 0.5V (Max) @ I
C
= 5A
Absolute Maximum Ratings:
CollectorEmitter Voltage, V
CEO
40V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CollectorBase Voltage, V
CB
90V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EmitterBase Volatge, V
EB
2V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous Collector Current, I
C
25A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Current, I
B
5A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total Device Dissipation (T
C
= +25
C), P
D
106W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Derate above +25
C
1.25W/
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Junction Temperature, T
J
65
to + 110
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Junction Temperature, T
stg
65
to + 110
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Resistance, JunctiontoCase, R
thJC
0.8
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics: (T
A
= +25
C unless otherwise noted)
Parameter
Symbol
Test Conditions
Min
Typ
Max Unit
OFF Characteristics
CollectorBase Breakdown Voltage
V
(BR)CBO
I
C
= 100mA, I
B
= 0
40
V
EmitterBase Breakdown Voltage
V
(BR)EBO
I
E
= 100mA, I
C
= 0
2
V
CollectorEmitter Sustaining Voltage
V
CE(sus)
I
C
= 5A
40
V
Collector Cutoff Current
I
CBO
V
CB
= 2V, I
E
= 0
200
A
I
CEX
V
CE
= 90V, V
BE(off)
= 0.2V
20
mA
CollectorEmitter Cutoff Current
I
CER
V
CE
= 50V, R
EB
= 100
10
mA
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