Fairchild KSA992 service manual
KSA992
Audio Frequency Low Noise Amplifier
• Complement to KSC1845
KSA992
1
1. Emitter 2. Collector 3. Base
TO-92
PNP Epitaxial Silicon Transistor
Absolute Maximum Ratings
Symbol Parameter Ratings Units
V
V
V
I
I
P
T
T
CBO
CEO
EBO
C
B
C
J
STG
Collector-Base Voltage -120 V
Collector-Emitter Voltage -120 V
Emitter-Base Voltage -5 V
Collector Current -50 mA
Base Current -10 mA
Collector Power Dissipation 500 mW
Junction Temperature 150 °C
Storage Temperature -55 ~ 150 °C
Electrical Characteristics
Symbol Parameter T est Condition Min. Typ . Max. Units
I
CBO
I
CEO
I
EBO
h
FE1
h
FE2
(on) Base-Emitter On Voltage VCE= -6V, IC= -1mA -0.55 -0.61 -0.65 V
V
BE
(sat) Collector-Emitter Saturation Voltage IC= -10mA, IB= -1mA -0.09 -0.3 V
V
CE
f
T
C
ob
NV Noise Voltage V
Collector Cut-off Current VCB= -120V, IE=0 -50 nA
Collector Cur-off Current VCE= -100V, IB=0 -1 µA
Emitter Cut-off Current VEB= -5mA, IC=0 -50 nA
DC Current Gain VCE= -6V, IC= -0.1mA
Current Gain Bandwidth Product VCE= -6V, IC= -1mA 50 100 MHz
Output Capacitance VCB= -30V, IE=0, f=1MHz 2 3 pF
Ta=25°C unless otherwise noted
Ta=25°C unless otherwise noted
V
= -6V, IC= -1mA
CE
= -5.0V, IC = -1.0mA,
CE
=100KW, GV = 80dB,
R
G
f = 10Hz to 1.0KHz
150
200
500
500 800
25 40 m V
h
Classification
FE2
Classification P F E
h
FE2
©2004 Fairchild Semiconductor Corporation Rev. B2, August 2004
200 ~ 400 300 ~ 600 400 ~ 800
Typical Characteristics
KSA992
-1.0
-0.8
-0.6
-0.4
-0.2
[mA], COLLECTOR CURRENT
C
I
0.0
0 -20 -40 -60 -80 -100
IB = -1.2µA
IB = -1.2µA
IB = -1.0µA
IB = 0
VCE[V], COLLECTOR-EMITTER VOLTAGE
Figure 1. Static Characteristic Figure 2. Static Characteristic
1000
800
600
400
, DC CURRENT GAIN
FE
h
200
0
-0.01 -0.1 -1 -10 -100
IC[mA], COLLECTOR CURRENT
IB = -0.8µA
IB = -0.6µA
IB = -0.4µA
IB = -0.2µA
VCE= -6V
-10
IB = -24µA
-8
-6
-4
-2
[mA], COLLECTOR CURRENT
C
I
0
0-1-2-3-4-5
IB = -20µA
IB = -16µA
IB = -12µA
IB = -8µA
IB = -4µA
IB = 0
VCE[V], COLLECTOR-EMITTER VOLTAGE
VBE(sat)
VCE(sat)
IC = 10 - I
B
-10
-1
-0.1
(sat)[V], SATURATION VOLTAGE
BE
(sat), V
CE
V
-0.01
-0.1 -1 -10 -100
IC[mA], COLLECTOR CURRENT
Figure 3. DC current Gain Figure 4. Base-Emitter Saturation Voltage
10
1
[pF], CAPACITANCE
ob
C
0.1
-1 -10 -100 -1000
VCB [V], COLLECTOR-BASE VOLTAGE
Figure 5. Collector Output Capacitance Figure 6. Current Gain Bandwidth Product
©2004 Fairchild Semiconductor Corporation
Collector-Emitter Saturation Voltage
1000
IE=0
f = 1MHz
100
10
1
0.1 1 10 100
[MHz], CURRENT GAIN-BANDWIDTH PRODUCT
T
f
IE[mA], COLLECTOR CURRENT
VCE = -6V
Rev. B2, August 2004
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