BC447 datasheet(3/6 Pages) ONSEMI

3 / 6 page

BC447, BC449, BC449A

http://onsemi.com

Figure 1. Current-Gain — Bandwidth Product

Figure 2. Capacitance

Figure 3. Switching Times

IC, COLLECTOR CURRENT (mA)

−100

−10

200

100

VR, REVERSE VOLTAGE (VOLTS)

−1.0

−100

−0.1

−2.0

−2.0 −3.0

−5.0 −7.0

−20 −30

−50 −70

300

−0.2

−0.5

−5.0

−10 −20

−50

TJ = 25°C

IC, COLLECTOR CURRENT (mA)

−10

500

200

100

−100

−50

−200

1.0 k

300

700

−70

−20

−30

TJ = 25°C

VCE = −1.0 V

−5.0 V

−1.0

6.0

TJ = 25°C

4.0

2.0

Cibo

Cobo

VCC = −40 V

IC/IB = 10

IB1 = IB2

TJ = 25°C

td @ VBE(off) = −0.5 V

8.0

Figure 4. Active-Region Safe Operating Area

VCE, COLLECTOR−EMITTER VOLTAGE (VOLTS)

−10

−50

−1.0

−500

−200

−100

−50

−20

−10

−20

−2.0

−5.0

−1.0 k

MPS8598

CURRENT LIMIT

THERMAL LIMIT

SECOND BREAKDOWN LIMIT

MPS8599

−3.0

−7.0

−30

−100

−70

−30

−70

−300

−700

DUTY CYCLE ≤ 10%

Figure 5. DC Current Gain

Figure 6. “ON” Voltages

IC, COLLECTOR CURRENT (mA)

−2.0

−0.2

300

200

100

−10

TJ = 125°C

−1.0

−5.0

VCE = −5.0 V

−20

−100

−50

−200

25°C

−55°C

−0.5

200

1.0

0.8

0.6

0.4

0.2

100

TJ = 25°C

VBE(sat) @ IC/IB = 10

VCE(sat) @ IC/IB = 10

VBE @ VCE = 5.0 V

0.2

2.0

0.5

5.0

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