BF224

2

Motorola Small–Signal Transistors, FETs and Diodes Device Data

Characteristic

Symbol

Min

Typ

Max

Unit

ON CHARACTERISTICS

DC Current Gain

(IC = 7.0 mAdc, VCE = 10 Vdc)

hFE

30

—

—

—

Base–Emitter On Voltage

(IC = 7.0 mAdc, VCE = 10 Vdc)

VBE(on)

—

0.77

0.9

mVdc

Collector–Emitter Saturation Voltage

(IC = 10 mAdc, IB = 1.0 mAdc)

VCE(sat)

—

—

0.15

Vdc

SMALL–SIGNAL CHARACTERISTICS

Current Gain — Bandwidth Product

(IC = 1.5 mAdc, VCE = 10 Vdc, f = 100 MHz)

(IC = 7.0 mAdc, VCE = 10 Vdc, f = 100 MHz)

fT

300

—

600

850

—

—

MHz

Common Emitter Feedback Capacitance

(VCE = 10 Vdc, IE = 0, f = 1.0 MHz)

Cre

—

0.28

—

pF

Noise Figure

(IC = 1.0 mAdc, VCE = 10 Vdc, RS = 50 Ω, f = 100 MHz)

(IC = 1.0 mAdc, VCE = 10 Vdc, RS = 50 Ω, f = 200 MHz)

Nf

—

—

2.5

3.5

—

—

dB