—1—

E94610B83-TE

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Absolute Maximum Ratings (Ta=25 °C)

• Reverse voltage

34

V

• Operating temperature

Topr

–20 to +75

°C

• Storage temperature

Tstg

–65 to +150

°C

Description

The 1T397 is a variable capacitance diode

designed for the electronic tuning of wide band

CATV tuners, and it has a super miniature package.

Features

• Super miniature package

• Large capacitance ratio

• Small series resistance

rs=1.1

Ω

Max.

• High reverse voltage

Structure

Silicon epitaxial planar-type diode

Variable Capacitance Diode

M-235

1T397

Electrical Characteristics

(Ta=25 °C)

Item

Reverse current

Reverse voltage

Diode capacitance

Capacitance ratio

Series resistance

Capacitance deviation in a

matching group

Symbol

rs

∆C

Conditions

Min.

Typ.

Max.

Unit

10

nA

34

V

42.9

51.0

pF

2.60

3.03

pF

14.5

15.5

21.5

1.03

1.1

Ω

2.0

%