BF840 datasheet(2/3 Pages) CDIL

Il numero della parte	BF840

Spiegazioni elettronici	SILICON PLANAR TRANSISTORS

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Produttore elettronici	CDIL [Continental Device India Limited]

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Continental Device India Limited

Data Sheet

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

Limiting values

Collector–base voltage (open emitter)

VCB0

max.

40 V

Collector–emitter voltage (open base)

VCE0

max.

40 V

Emitter–base voltage (open collector)

VEB0

max.

4 V

Collector current (d.c.)

IC

max.

25 mA

Total power dissipation up to Tamb = 25 °C*

Ptot

max.

250 mW

Storage temperature

Tstg

–55 to +150 °C

Junction temperature

Tj

max.

150 ° C

THERMAL RESISTANCE

From junction to ambient

Rth j–a

500 K/W

CHARACTERISTICS

Tj = 25 °C unless otherwise specified

Collector cut–off current

IE = 0; VCB = 20 V

ICBO

max.

100 nA

Base–emitter voltage

IC = 1 mA; VCE = 10 V

VBE

typ.

700 mV

650 to 740 mV

BF840

BF841

Base current

IC: 1 mA; VCE = 10 V

IB

4,5–15 8–28

m

A

Transition frequency at f = 100 MHz

IC = 1 mA; VCE = 10 V

fT

typ.

380

MHz

Feedback capacitance at f = 1 MHz

IC = 1 mA; VCE = 10 V

Cre

typ.

0,3

pF

Noise figure

IC = 1 mA; VCE = 10 V;

f = 0,2 MHz; RS = 200 W

F

typ.

1,5

2,0

dB

BF840

BF841

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