©

1996

DATA SHEET

SILICON TRANSISTOR

2SC4185

DESCRIPTION

The 2SC4185 is an NPN silicon epitaxial transistor intended for use

as a UHF oscillator and a mixer in a tuner of a TV receiver. The device

features stable oscillation and small frequency drift against any change

of the supply voltage and the ambient temperature.

It is designed for use in small type equipments especially recom-

mended for Hybrid Integrated Circuit and other applications.

FEATURES

•

Low Noise

•

High Conversion Gain

•

Easy & economical mounting realizable with plastic mold package for

Hybrid IC.

ABSOLUTE MAXIMUM RATINGS (TA = 25 ˚C)

Collector to Base Voltage

VCB0

30

V

Collector to Emitter Voltage

VCE0

14

V

Emitter to Base Voltage

VEB0

3.0

V

Collector Current

IC

50

mA

Total Power Dissipation

PT

160

mW

Junction Temperature

Tj

150

˚C

Storage Temperature

Tstg

–65 to +150

˚C

ELECTRICAL CHARACTERISTICS (TA = 25 ˚C)

Characteristics

Symbol

MIN.

TYP.

MAX.

Unit

Test Conditions

Collector Cutoff Current

ICB0

0.1

µAVCB = 15 V, IE = 0

DC Current Gain

hFE

40

100

180

VCE = 10 V, IC = 5 mA

Gain Bandwidth Product

fT

1.5

2.0

GHz

VCE = 10 V, IC = 5 mA, f = 1 GHz

Output Capacitance

Cob

1.0

1.3

pF

VCB = 10 V, IE = 0, f = 1 MHz

hFE Classifications

Rank

U21

U22

U23

Marking

U21

U22

U23

hFE

40 to 80

60 to 120

90 to 180

Document No. P11190EJ2V0DS00 (2nd edition)

Date Published February 1996 P

Printed in Japan

PACKAGE DIMENSIONS

in millimeters

UHF OSCILLATOR AND VHF MIXER

NPN SILICON EPITAXIAL TRANSISTOR

SUPER MINI MOLD

2.1 ± 0.1

1.25 ± 0.1

2

1

3

Marking

PIN CONNECTIONS

1. Emitter

2. Base

3. Collector