
NTE158
Germanium PNP Transistor
Audio Power Amplifier
Description:
The NTE158 is a germanium PNP triode transistor in a TO1 type package designed for low–power,
large signal audio applications.
Absolute Maximum Ratings:
(T
A
= +25
°
C)
Collector–Base Voltage, V
CBO
Collector–Emitter Voltage (R
BE
≤
500
), V
CER
Emitter–Base Voltage, V
EBO
Collector Current, I
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Current, I
B
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation (T
A
= +25
°
C), P
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Derate Above 25
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead Temperature (During Soldering, 1/16”
±
1/32” from case for 5sec), T
L
32V
32V
10V
1A
40mA
550mW
0.3mW/
°
C
–55
°
to +90
°
C
+245
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . .
Electrical Characteristics:
(T
A
= +25
°
C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Collector–Base Breakdown Voltage
V
(BR)CBO
I
C
= 200
μ
A, I
E
= 0
V
(BR)EBO
I
E
= 200
μ
A, I
C
= 0
I
CBO
V
CB
= –10V, I
E
= 0
I
EBO
V
EB
= –5V, T
J
= +75
°
C
h
FE
V
CB
= 1V, I
C
= 300mA
V
BE
V
CE
= 1V, I
C
= 300mA
f
hfe
32
–
–
V
Emitter–Base Breakdown Voltage
10
–
–
V
Collector Cutoff Current
–
–
10
μ
A
μ
A
Emitter Cutoff Current
–
–
500
DC Current Gain
60
90
175
Base–Emitter Voltage
280
–
380
mV
Forward Current Transfer Cutoff
Frequency
10
–
20
kc
Output Capacitance
C
ob
V
CB
= –5V, I
E
= 0 @ 0.45mc
80
–
105
pF