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NTE333 & NTE334
Silicon NPN Transistors
RF Power Output
Description:
The NTE333 & NTE334 are designed for power amplifier applications in industrial, commercial and
amateur radio equipment to 30MHz.
Features:
D Specified 12.5 Volt, 30MHz Characteristics−
Output Power = 60 Watts
Minimum Gain = 13dB
Efficiency = 55%
Absolute Maximum Ratings:
Collector−Emitter Voltage, V
Collector−Emitter Voltage, V
Emitter−Base Voltage, V
Collector Current−Continuous, I
Total Device Dissipation (TC = +25°C), P
CEO
CES
EBO
C
D
Derate Above 25°C 1.0W/°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
Thermal Resistance, Junction−to−Case, R
−65° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
thJC
18V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
36V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
175W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.0°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Note 1. NTE334 is a discontinued device and no longer available.
Electrical Characteristics: (TC = +25°C unless otherwise specified).
Parameter Symbol Test Conditions Min Typ Max Unit
OFF Characteristics
Collector−Emitter Breakdown Voltage V
Collector−Emitter Breakdown Voltage V
Emitter−Base Breakdown Voltage V
ON Characteristics
DC Current Gain h
Dynamic Characteristics
Output Capacitance C
Common−Emitter Amplifier Power Gain G
Collector Efficiency η VCC = 12.5Vdc, P
Series Equivalent Input Impedance Z
Series Equivalent Output Impedance Z
(BR)CEOIC
(BR)CESIC
(BR)EBO IE
FE
ob
pe
in
out
= 100mA, IB = 0 18 − − V
= 50mA, VBE = 0 36 − − V
= 10mA, IC = 0 4.0 − − V
IC = 5.0A, VCE = 5.0V 10 − 150
VCB = 12.5Vdc, IE = 0, f = 1.0MHz − − 250 pF
VCC = 12.5Vdc, P
VCC = 12.5Vdc, P
VCC = 12.5Vdc, P
= 60W, f = 30MHz 13 − − dB
out
= 60W, f = 30MHz 55 − − %
out
= 60W, f = 30MHz − 1.6
out
= 60W, f = 30MHz − 1.7
out
− Ohms
−
j.844
− Ohms
−
j.188
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Electrical Characteristics (Cont’d): (TC = +25°C unless otherwise specified).
Parameter Symbol Test Conditions Min Typ Max Unit
Dynamic Characteristics (Cont’d)
Parallel Equivalent Input Impedance Z
Parallel Equivalent Output Impedance Z
out
VCC = 12.5Vdc, P
in
VCC = 12.5Vdc, P
= 60W, f = 30MHz − 2.09/
out
= 60W, f = 30MHz − 1.75/
out
NTE333
− Ω/pF
1030
− Ω/pF
330
.225 (5.72)
.185 (4.7)
.250
(6.35)
.230
(5.84)
.378 (9.56)
.005 (0.15)
.725 (18.42)
EC
BE
.860 (21.84)
.975 (24.77)
NTE334
1.040 (26.4) Max
.520
(13.2)
C
.122 (3.1)
Dia
(2 Holes)
.255
(6.5)
.085 (2.14)
EE
.100 (2.54)
8−32−NC−3A
Wrench Flat
B
.385
(9.8)
Dia
.168 (4.27)
.005 (0.15)
.750
(19.05)
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