BC490, BC490A
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted)
Characteristic
OFF CHARACTERISTICS
Collector −Emitter Breakdown Voltage (Note 1)
(IC = −10 mAdc, IB = 0)
Collector −Base Breakdown Voltage
(IC = −100 mAdc, IE = 0)
Emitter −Base Breakdown Voltage
(IE = −10 mAdc, IC = 0)
Collector Cutoff Current
(VCB = −60 Vdc, IE = 0)
ON CHARACTERISTICS
DC Current Gain
(IC = −10 mAdc, VCE = −2.0 Vdc)
(IC = −100 mAdc, VCE = −2.0 Vdc)
(IC = −1.0 Adc, VCE = −5.0 Vdc)
Collector −Emitter Saturation Voltage
(IC = −500 mAdc, IB = −50 mAdc)
(IC = −1.0 Adc, IB = −100 mAdc)
Base −Emitter Saturation Voltage
(IC = −500 mAdc, IB = −50 mAdc)
(IC = −1.0 Adc, IB = −100 mAdc)
DYNAMIC CHARACTERISTICS
BC490
BC490A
Current−Gain − Bandwidth Product
(IC = −50 mAdc, VCE = −2.0 Vdc, f = 100 MHz)
Output Capacitance
(VCB = −10 Vdc, IE = 0, f = 1.0 MHz)
Input Capacitance
(VEB = −0.5 Vdc, IC = 0, f = 1.0 MHz)
1. Pulse Test: Pulse Width = 300 ms, Duty Cycle 2%.
Symbol
V(BR)CEO
V(BR)CBO
V(BR)EBO
ICBO
hFE
VCE(sat)
VBE(sat)
fT
Cob
Cib
Min
Typ
Max Unit
−80
−
−
Vdc
−80
−
−
Vdc
−4.0
−
−
Vdc
−
−
−100 nAdc
−
40
−
−
60
−
400
100
140
250
15
−
−
Vdc
−
−0.25 −0.5
−
−0.5
−
Vdc
−
−0.9 −1.2
−
−1.0
−
−
150
−
MHz
−
9.0
−
pF
−
110
−
pF
TURN−ON TIME
5.0 ms
−1.0 V
+10 V
0
tr = 3.0 ns
Vin
5.0 mF
100
RB
100
VCC
+40 V
RL
OUTPUT
*CS < 6.0 pF
TURN−OFF TIME
+VBB
100
Vin
RB
VCC
+40 V
RL
OUTPUT
5.0 mF 100
*CS < 6.0 pF
5.0 ms
tr = 3.0 ns
*Total Shunt Capacitance of Test Jig and Connectors
For PNP Test Circuits, Reverse All Voltage Polarities
Figure 1. Switching Time Test Circuits
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