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JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD
TO-92 Plastic-Encapsulate Transistors
BC237/238/239
TRANSISTOR (NPN)
TO-92
1. COLLECTOR
FEATURES
Amplifier dissipation NPN Silicon
2. BASE
3. EMITTER
BDTIC
MAXIMUM RATINGS (Ta=25℃ unless otherwise noted)
Symbol
VCEO
VEBO
IC
PC
RθJA
Parameter
Value
BC237
45
BC238/239
25
Collector-Emitter Voltage
Emitter-Base Voltage
BC237
BC238/239
6
5
Unit
V
V
Collector Current -Continuous
0.1
A
Collector Power Dissipation
350
mW
357
℃/W
Thermal Resistance,
Junction to Ambient
RθJC
Thermal Resistance, Junction to Case
125
℃/W
Tj
Junction Temperature
150
℃
Storage Temperature
-55-150
℃
Tstg
www.BDTIC.com/jcst
ELECTRICAL CHARACTERISTICS (Ta=25℃ unless otherwise specified)
Parameter
Symbol
Collector-base breakdown voltage
V(BR)CBO
Collector-emitter breakdown voltage
V(BR)CEO
Emitter-base breakdown voltage
V(BR)EBO
ICBO
Collector cut-off current
Test
conditions
IC=100μA, IE=0
IC=2mA, IB=0
IE=100μA, IC=0
Min
BC237
50
BC238/239
30
BC237
45
BC238/239
25
BC237
6
BC238/239
5
VCE=50V, VBE=0
BC237
VCB=30V,IE=0
BC238/239
VCE=5V, IC=10μA
Typ
V
V
150
BC237C/238C/239C
270
BDTIC
120
800
BC239
120
800
DC current gain
BC237A
120
220
BC237B/238B
200
460
BC237C/238C/239C
380
800
BC237
hFE(2)
VCE=5V, IC=100mA
Collector-emitter saturation voltage
VCE(sat)
BC237A
120
BC237B/238B
180
BC237C/238C/239C
300
hFE(3)
IC=10mA, IB=0.5mA BC237/238/239
0.2
IC=100mA, IB=5mA
0.6
BC237/239
BC238
Base-emitter saturation voltage
VBE(sat)
Transition frequency
VBE
fT
IC=10mA,IB=0.5mA
0.83
IC=100mA,IB=5mA
1.05
0.7
0.55
VCE=5V, IC=100mA
0.83
VCE=3V,IC=0.5mA,f=100MHz BC237
100
BC238
120
BC239
140
150
200
BC238
150
240
BC239
150
280
VCE=5V,IC=10mA,f=100MHz BC237
Cob
VCB=10V, IE=0, f=1MHz
Emitter-base capacitance
Cib
VEB=0.5V, IC=0, f=1MHz
V
0.5
VCE=5V, IC=2mA
Collector output capacitance
V
0.8
VCE=5V, IC=0.1mA
Base-emitter voltage
nA
90
BC237B/238B
VCE=5V, IC=2mA
Unit
V
15
BC237A
hFE(1)
Max
4.5
8
V
MHz
pF
Pf
VCE=5V, Ic=0.2mA,
2
4
f=1kHZ, Rs=2KΩ, Δf=200Hz BC237
2
10
BC238
2
10
BC239
2
4
f=1kHZ, Rs=2KΩ
Noise figure
NF
BC239
VCE=5V, Ic=0.2mA,
www.BDTIC.com/jcst
dB
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