©

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.

Collector to Base Voltage

30

V

Collector to Emitter Voltage

14

V

Emitter to Base Voltage

3.0

V

Collector Current

50

mA

Total Power Dissipation

160

mW

Junction Temperature

150

˚C

Storage Temperature

–65 to +150

˚C

Characteristics

Symbol

MIN.

TYP.

MAX.

Unit

Test Conditions

Collector Cutoff Current

0.1

DC Current Gain

40

100

180

Gain Bandwidth Product

1.5

2.0

GHz

Output Capacitance

1.0

1.3

pF

Rank

U21

U22

U23

Marking

U21

U22

U23

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