2N2907AS datasheet(4/5 Pages) FS

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C eb

TYPICAL SMALL–SIGNAL CHARACTERISTICS

NOISE FIGURE

V CE = 10 Vdc, T A = 25°C

f=1.0 kHz

50 100 200

500 1.0 k 2.0 k

5.0 k 10 k

20 k

50 k

I C = –1.0 mA, R S= 430 Ω

–500 µA, R S= 560 Ω

–50 µA, R S= 2.7 k Ω

–100 µA, R S= 1.6 k Ω

f, FREQUENCY (kHz)

Figure 7. Frequency Effects

R S, SOURCE RESISTANCE ( Ω )

Figure 8. Source Resistance Effects

REVERSE VOLTAGE (VOLTS)

Figure 9. Capacitances

I C , COLLECTOR CURRENT (mA)

Figure 10. Current–Gain — Bandwidth Product

I C , COLLECTOR CURRENT (mA)

Figure 11. “On” Voltage

I C , COLLECTOR CURRENT (mA)

Figure 12. Temperature Coefficients

T J = 25°C

R θVB for V BE

I C = –50µA

–100 µA

–500 µA

–1.0 mA

RS=OPT MUM SOURCE RESISTANCE

–0.1 –0 2 –0.3 –0.5

–1.0

–2.0 –3.0 –5 0

–10

–20 –30

–1.0 –2.0

–5.0

–10

–20

–50

–100 –200

–500 –1000

–0.1 –0.2

–0 5 –1.0 –2.0 –5.0 –10 –20

–50 –100 –200

–500

+0.5

–0.5

– 1.0

–1.5

–2.0

–2.5

0.01 0.02 0.05 0.1 0.2

0.5

1.0 2.0

5.0 10

50 100

8.0

6.0

4.0

2.0

8.0

6.0

4.0

2.0

C cb

7.0

5.0

3.0

2.0

400

300

200

100

VCE=–20 V

T J= 25°C

V BE(sat) @ I C /I B = 10

V CE(sat) @ I C /I B = 10

V BE(on) @ V CE = –10 V

R θVC for V CE(sat)

–0.1 –0.2

–0.5 –1.0 –2.0 –5.0 –10 –20

–50 –100 –200

–500

–1 0

–0 8

–0 6

– 0.4

–0 2

2N2907AS

2008. 02. 18

4/5

Revision No : 1

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