BF420 BF422

2

Motorola Small–Signal Transistors, FETs and Diodes Device Data

Characteristic

Symbol

Min

Max

Unit

ON CHARACTERISTICS

DC Current Gain

(IC = 25 mAdc, VCE = 20 Vdc)

BF420

BF422

hFE

50

50

—

—

—

Collector – Emitter Saturation Voltage

(IC = 20 mAdc, IB = 2.0 mAdc)

VCE(sat)

—

0.5

Vdc

Base – Emitter Saturation Voltage

(IC = 20 mAdc, IB = 2.0 mAdc)

VBE(sat)

—

2.0

Vdc

SMALL– SIGNAL CHARACTERISTICS

Current Gain — Bandwidth Product

(IC = 10 mAdc, VCE = 10 Vdc, f = 20 MHz)

fT

60

—

MHz

Common Emitter Feedback Capacitance

(VCB = 30 Vdc, IE = 0, f = 1.0 MHz)

Cre

—

1.6

pF