BC307,B,C BC308C BC309B

3

Motorola Small–Signal Transistors, FETs and Diodes Device Data

2.0

1.5

1.0

0.2

0.3

0.5

0.7

–200

–0.2

–0.5

–1.0

–2.0

–5.0

–10

–20

–50

–100

IC, COLLECTOR CURRENT (mAdc)

Figure 1. Normalized DC Current Gain

VCE = –10 V

TA = 25°C

–1.0

–0.9

–0.8

–0.7

–0.6

–0.5

–0.4

–0.3

–0.2

–0.1

0

–0.1

IC, COLLECTOR CURRENT (mAdc)

Figure 2. “Saturation” and “On” Voltages

TA = 25°C

VBE(sat) @ IC/IB = 10

VBE(on) @ VCE = –10 V

VCE(sat) @ IC/IB = 10

400

20

30

40

60

80

100

200

300

IC, COLLECTOR CURRENT (mAdc)

Figure 3. Current–Gain — Bandwidth Product

10

1.0

2.0

3.0

5.0

7.0

–0.4

VR, REVERSE VOLTAGE (VOLTS)

Figure 4. Capacitances

TA = 25°C

Cib

Cob

150

140

130

120

110

100

IC, COLLECTOR CURRENT (mAdc)

Figure 5. Output Admittance

–0.2

–0.5

–1.0

–2.0

–5.0

–10

–20

–50

–100

VCE = –10 V

TA = 25°C

–0.5

–1.0

–2.0 –3.0

–5.0

–10

–20 –30

–50

–0.6

–1.0

–2.0

–4.0

–6.0

–10

–20 –30 –40

1.0

IC, COLLECTOR CURRENT (mAdc)

Figure 6. Base Spreading Resistance

VCE = –10 V

f = 1.0 kHz

TA = 25°C

–0.1

–0.2 –0.3

–0.5

–1.0

–2.0 –3.0

–5.0

–10

VCE = –10 V

f = 1.0 kHz

TA = 25°C

–0.1

–0.2

–0.5

–1.0

–2.0

–5.0

–10

0.01

0.03

0.05

0.1

0.3

0.5

150