BC857B 查看數據表（PDF） - Yea Shin Technology Co., Ltd
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BC857B Datasheet PDF : 7 Pages
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DEVICE CHARACTERISTICS
BC85x Series
BC856
V CE = –5.0V
T = 25°C
A
2.0
1.0
0.5
0.2
–0.1–0.2 –1.0–2.0 –5.0–10–20 –50–100–200
I , COLLECTOR CURRENT (mA)
C
Figure 7. DC Current Gain
–1.0
–0.8
–0.6
–0.4
T J= 25°C
VBE(sat) @ I C/I B= 10
VBE @VCE= –5.0 V
–0.2
0
–0.2
V @ I /I = 10
CE(sat)
CB
–0.5 –1.0 –2.0 –5.0 –10 –20
–50 –100 –200
I C , COLLECTOR CURRENT (mA)
Figure 8. “On” Voltage
–2.0
–1.6
–1.2
IC =
–10 mA
–20mA
–50mA –100mA –200mA
–0.8
–0.4
TJ= 25°C
0
–0.02 –0.05 –0.1 –0.2
–0.5 –1.0 –2.0
–5.0 –10 –20
I B , BASE CURRENT (mA)
Figure 9. Collector Saturation Region
–1.0
–1.4
–1.8
–2.2
θ VB for V BE
–55°C to 125°C
–2.6
–3.0
–0.2 –0.5 –1.0 –2.0 –5.0 –10 –20 –50 –100 –200
I C , COLLECTOR CURRENT (mA)
Figure 10. Base–Emitter Temperature Coefficient
40
T J= 25°C
20
C ib
10
8.0
6.0
C ob
4.0
2.0
–0.1–0.2 –0.5 –1.0 –2.0 –5.0 –10 –20 –50 –100
V R , REVERSE VOLTAGE (VOLTS)
Figure 11. Capacitance
500 VCE= –5.0 V
200
100
50
20
–1.0
–10
–100
I C , COLLECTOR CURRENT (mA)
Figure 12. Current–Gain – Bandwidth Product
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