BC638 Switching Amplifier Applications Complement BC637
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BC638
BC638
Switching Amplifier Applications
Complement BC637
TO-92
Emitter Collector Base
Absolute Maximum Ratings
Symbol
VCER VCES VCEO VEBO TSTG Collector-Emitter Voltage Collector-Emitter Voltage Emitter-Base Voltage Collector Current Peak Collector Current Base Current
25°C unless otherwise noted
Parameter
Collector-Emitter Voltage RBE=1K
Value
-1.5 -100
Units
Collector Power Dissipation Junction Temperature Storage Temperature
Electrical Characteristics
Symbol
BVCEO ICBO IEBO hFE1 hFE2 hFE3 (sat) (on)
25°C unless otherwise noted
Parameter
Collector-Emitter Breakdown Voltage Collector Cut-off Current Emitter Cut-off Current Current Gain
Test Condition
-10mA, IB=0 VCB= -30V, IE=0 VEB= -5V, IC=0 VCE= -2V, -5mA VCE= -2V, -150mA VCE= -2V, -500mA -500mA, -50mA VCE= -2V, -500mA VCE= -5V, -10mA, f=50MHz
Min.
Typ.
Max.
-0.1
Units
-0.5
Collector-Emitter Saturation Voltage Base-Emitter Voltage Current Gain Bandwidth Product
2009 Fairchild Semiconductor Corporation BC638 Rev.
www.fairchildsemi.com
BC638
Package Marking Ordering Information
Device Marking
BC638 BC638 BC638 BC638 BC638
Device
BC638 BC638BU BC638TA BC638TF BC638TFR
Package
TO-92 TO-92 TO-92 TO-92 TO-92
2009 Fairchild Semiconductor Corporation BC638 Rev.
www.fairchildsemi.com
BC638
Typical Performance Characteristics
Figure Static Characteristic
-500
Figure Current Gain
1000
IC[mA], COLLECTOR CURRENT
-400
-300
hFE, CURRENT GAIN
-200
-100
-100 -1000
VCE[V], COLLECTOR-EMITTER VOLTAGE
IC[mA], COLLECTOR CURRENT
Figure Base-Emitter Saturation Voltage Collector-Emitter Saturation Voltage
VBE(sat), VCE(sat)[V], SATURATION VOLTAGE
Figure Base-Emitter Voltage
-1000
VBE(sat)
IC[mA], COLLECTOR CURRENT
-100
-0.1
VCE(sat)
-0.01 -100 -1000
-0.2 -0.4 -0.6 -0.8 -1.0 -1.2
IC[mA], COLLECTOR CURRENT
VBE[V], BASE-EMITTER VOLTAGE
Figure Collector Output Capacitance
f=1MHz
Cob[pF], CAPACITANCE
-100
VCB[V], COLLECTOR-BASE VOLTAGE
2009 Fairchild Semiconductor Corporation BC638 Rev.
www.fairchildsemi.com
BC638
Mechanical Dimensions
TO-92
4.58 -0.15
+0.25
14.47 ±0.40
0.46 ±0.10
4.58 ±0.20
1.27TYP [1.27 ±0.20] 3.60 ±0.20
1.27TYP [1.27 ±0.20]
0.38 -0.05
+0.10
3.86MAX
1.02 ±0.10
0.38 -0.05
+0.10
(R2.29)
(0.25)
Dimensions Millimeters
2009 Fairchild Semiconductor Corporation BC638 Rev. www.fairchildsemi.com
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Rev.
2008 Fairchild Semiconductor Corporation
www.fairchildsemi.com
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