UMC3 transistors equivalent, dual common base-collector bias resistor transistors.
IN 1000
VCE = 10 V TAĂ=Ă75°C 25°C -25°C
1 TAĂ=Ă-25°C 0.1 25°C 75°C
100
0.01
0
20 40 IC, COLLECTOR CURRENT (mA)
50
10
1
10 IC, COLLECTOR CURRENT (mA)
100
Figur.
where board space is at a premium.
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3 R1 2 R2 1
R2 Q1 R1 4
Q2
5
*
*
*
*
Simplifies.
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