CMBT4124 datasheet(2/3 Pages) CDIL

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Continental Device India Limited

Data Sheet

Page 2 of 3

THERMAL CHARACTERISTICS

Tj = P (Rth j–t + Rth s–a) + Tamb

Thermal resistance

from junction to ambient

Rth j–a

556 °C/mW

CHARACTERISTICS (at TA = 25°C unless otherwise specified)

Collector–emitter breakdown voltage

–IC = 1 mA; IB = 0

–V(BR)CEO min.

25 V

Collector–base breakdown voltage

–IC = 10 mA; IE = 0

–V(BR)CBO min.

30 V

Emitter–base breakdown voltage

–IE = 10 mA; IC = 0

–V(BR)EBO min.

5 V

Collector cut–off current

–VCB = 20 V; IE = 0 V

–ICBO

max.

50 nA

Emitter cut–off current

VBE = 3 V; IC =0

IEBO

max.

50 nA

Output capacitance at f = 100 kHz

IE = 0; –VCB = 5 V

max.

4 pF

Input capacitance at f = 100 kHz

IC = 0; –VBE = 0.5 V

max.

8 pF

Saturation voltages

–IC = 50 mA; –IB = 5 mA

–VCEsat

max.

0.3 V

–IC = 50 mA; –IB = 5 mA

–VBEsat

max.

0.95 V

D.C. current gain

min.

120

–IC = 2 mA; –VCE = 1 V

hFE

max.

360

–IC = 50 mA; –VCE = 1 V

hFE

min.

Noise figure at RS = 1 kW

–IC = 100 mA; –VCE = 5 V

f = 10 Hz to 15.7 kHz

max.

6 dB

Small signal current gain

VCE = 1V; IC = 2 mA; f = 1 KHz

hfe

min.

120

max.

480

Transition frequency

VCE = 20V; IC = 10 mA; f = 100 MHz

min.

300 MHz

CMBT4124

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