BF554 datasheet(2/4 Pages) SIEMENS

Part #	BF554

Description	NPN Silicon RF Transistor (For general small-signal RF applications up to 300 MHz in amplifier, mixer and oscillator circuits)

PDF	4 Pages

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Manufacturer	SIEMENS [Siemens Semiconductor Group]

Direct Link	http://www.siemens.com/

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2 / 4 page

BF 554

Semiconductor Group

Electrical Characteristics

at TA = 25 ˚C, unless otherwise specified.

Unit

Values

Parameter

Symbol

min.

typ.

max.

DC Characteristics

AC Characteristics

Collector-emitter breakdown voltage

IC = 1 mA, IB = 0

V(BR) CE0

–

Collector cutoff current

VCB = 20 V, IE = 0

ICB0

–

100

–

DC current gain

IC = 1 mA, VCE = 10 V

hFE

–

250

Base-emitter voltage

IC = 1 mA, VCE = 10 V

VBE

–

0.7

–

MHz

Transition frequency

IC = 1 mA, VCE = 10 V, f = 100 MHz

–

250

–

Collector-base capacitance

VCE = 10 V, VBE = 0 V, f = 1 MHz

Ccb

–

0.6

–

µS

Output conductance

IC = 1 mA, VCE = 10 V, f = 0.5...10 MHz

g22e

–4–

Noise figure

IC = 1 mA, VCE = 10 V

f = 200 kHz, gS = 2 mS

f = 1 MHz, gS = 1.5 mS

f = 100 MHz, gS = 10 mS

–

1.5

1.2

–

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