
NTE123AP
Silicon NPN Transistor
Audio Amplifier, Switch
(Compl to NTE159)
Absolute Maximum Ratings:
Collector−Emitter Voltage, V
Collector−Base Voltage, V
Emitter−Base Voltage, V
Continuous Collector Current, I
Total Device Dissipation (TA = +25°C), P
Derate Above 25°C 5.0mW/°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total Device Dissipation (TC = +25°C), P
Derate Above 25°C 12mW/°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Junction Temperature Range, T
Storage Temperature Range, T
Thermal Resistance, Junction to Case, R
Thermal Resistance, Junction to Ambient, R
Electrical Characteristics: (TA = +25°C unless otherwise specified)
CEO
CB
EB
C
D
D
J
stg
thJC
thJA
40V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
60V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
600mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
625mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
−55° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
−55° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
83.3°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
200°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parameter Symbol Test Conditions Min Typ Max Unit
OFF Characteristics
Collector−Emitter Breakdown Voltage V
Collector−Base Breakdown Voltage V
Emitter−Base Breakdown Voltage V
Collector Cutoff Current I
Base Cutoff Current I
ON Characteristics (Note 1)
DC Current Gain h
(BR)CEOIC
(BR)CBOIC
(BR)EBOIE
CEV
BEV
FE
= 1mA, IB = 0, Note 1 40 − − V
= 0.1mA, IE = 0 60 − − V
= 0.1mA, IC = 0 6 − − V
VCE = 35V, V
VCE = 35V, V
VCE = 1V, IC = 0.1mA 20 − −
VCE = 1V, IC = 1mA 40 − −
VCE = 1V, IC = 10mA 80 − −
VCE = 1V, IC = 150mA 100 − 300
VCE = 1V, IC = 500mA 40 − −
= 0.4V − − 0.1 µA
EB(off)
= 0.4V − − 0.1 µA
EB(off)
Note 1. Pulse Test: Pulse Width ≤ 300µs, Duty Cycle ≤ 2%.

Electrical Characteristics (Cont’d): (TA = +25°C unless otherwise specified)
Parameter Symbol Test Conditions Min Typ Max Unit
ON Characteristics (Note 1) (Cont’d)
Collector−Emitter Saturation Voltage V
Base−Emitter Saturation Voltage V
CE(sat)IC
BE(sat)IC
Small−Signal Characteristics
Current Gain−Bandwidth Product f
Collector−Base Capacitance C
Emitter−Base Capacitance C
Input Impedance h
Voltage Feedback Ratio h
Small−Signal Current Gain h
Output Admittance h
Switching Characteristics
Delay Time t
Rise Time t
Storage Time t
Fall Time t
= 150mA, IB = 15mA − − 0.4 V
IC = 500mA, IB = 50mA − − 0.75 V
= 150mA, IB = 15mA 0.75 − 0.95 V
IC = 500mA, IB = 50mA − − 1.2 V
IC = 20mA, VCE = 10V, f = 100MHz 250 − − MHz
T
VCB = 5V, IE = 0, f = 100kHz − − 6.5 pF
cb
VCB = 0.5V, IC = 0, f = 100kHz − − 30 pF
eb
IC = 1mA, VCE = 10V, f = 1kHz 1.0 − 15 kΩ
ie
IC = 1mA, VCE = 10V, f = 1kHz 0.1 − 8.0 x 10
re
IC = 1mA, VCE = 10V, f = 1kHz 40 − 500
fe
IC = 1mA, VCE = 10V, f = 1kHz 1.0 − 30 µmhos
oe
VCC = 30V, V
d
IC = 150mA, IB1 = 15mA
r
VCC = 30V, IC = 150mA,
s
IB1 = IB2 = 15mA
f
EB(off)
= 2V,
− − 15 ns
− − 20 ns
− − 225 ns
− − 30 ns
−6
Note 1. Pulse Test: Pulse Width ≤ 300µs, Duty Cycle ≤ 2%.