UTC UTC2SC945 Datasheet
UTC 2SC945 NPN EPI TAX IAL SI LI CON TRA NSI STO R
AUDIO FREQUENCY AMPLIFIER
HIGH FREQUENCY OSC NPN
TRANSISTOR
DESCRIPTION
The UTC 2SC945 is an audio frequency amplifier high
frequency OSC NPN transistor.
FEATURES
*Collector-Emitter voltage:
CBO=50V
BV
*Collector current up to 150mA
*High hFE linearity
*Complimentary to 2SA733
ABSOLUTE MAXIMUM RATINGS
Collector-Base Voltage VCBO 60 V
Collector-Emitter Voltage VCEO 50 V
Emitter-Base Voltage VEBO 5 V
Collector Dissipation(Ta=25°C)
Collector Current Ic 150 mA
Base Current IB 50 mA
Junction Temperature Tj 125
Storage Temperature TSTG -55 ~ +150
ELECTRICAL CHARACTERISTICS
Collector-Base Breakdown Voltage BVCBO
Collector-Emitter Breakdown Voltage BVCEO IC=10mA,IB=0 50 V
Collector Cut-Off Current ICBO VCB=40V,IE=0 100 nA
Emitter Cut-Off Current IEBO VEB=3V,Ic=0 100 nA
DC Current Gain(note) hFE
Collector-Emitter Saturation Voltage VCE(sat) Ic=100mA,IB=10mA 0.1 0.3 V
Current Gain Bandwidth Product fT VCE=10V,Ic=50mA 100 190 MHz
Output Capacitance Cob VCB=10V,IE=0,f=1MHz 2.0 3.0 pF
Noise Figure NF Ic=-0.1mA,VCE=6V
( Ta=25°C ,unless otherwise specified )
PARAMETER SYMBOL VALUE UNIT
(Ta=25°C,unless otherwise specified)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
1
TO-92
1:EMITTER 2:COLLECTOR 3: BASE
Pc 250 mW
°C
°C
Ic=100µA, I
V
CE=6V,Ic=1mA
G=10kΩ,f=100Hz
R
E=0
60 V
70
700
4.0 6.0 dB
UTC UNISONIC TECHNOLOGIES CO. LTD
QW-R201-005,A
1
UTC 2SC945 NPN EPI TAX IAL SI LI CON TRA NSI STO R
CLASSIFICATION OF hFE
RANK O G Y L
RANGE 70-140 200-400 120-240 350-700
TYPICAL PERFORMANCE CHARACTERISTICS
Fig.1 Static characteristics
100
80
60
40
IB=300 µA
IB=250 µA
IB=200 µA
IB=150 µA
20
Ic,Collector current (mA)
0
04 8 121620
IB=100 µA
IB=50 µA
Collector-Emitter voltage ( V)
Fig.4 Saturation voltage
4
10
Ic=10*I
B
3
10
VBE(sat)
Fig.2 DC current Gain
3
10
2
10
1
10
HFE, DC current Gain
0
10
0
-1
10
10
10
Ic,Collector current (mA)
Fig.5 Current gain-bandwidth
3
10
2
10
T(MHz)
product
1
VCE=6V
VCE=6V
Fig.3 Base-Emitter on Voltage
2
10
1
10
0
10
VCE=6V
Ic,Collector current (mA)
2
10
10
0 0.2 0.4 0.6 0.8 1.0
-1
10
3
Base-Emitter voltage (V)
Fig.6 Collector output
2
10
1
10
Capacitance
f=1MHz
I
E
=0
2
10
Saturation voltage (MV)
1
10
-1
10
Ic,Collector current (mA)
10
VCE(sat)
0
1
10
10
10
3
2
1
10
product,f
0
10
Cob,Capacitance (pF)
Current Gain-bandwidth
-1
0
10
-1
10
Ic,Collector current (mA)
0
10
1
10
10
2
10
0
10
1
10
2
10
Collector-Base voltage (V)
UTC UNISONIC TECHNOLOGIES CO. LTD
QW-R201-005,A
3
10
2
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