Sony 1T409 Datasheet

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E96144A98-TE

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Absolute Maximum Ratings (Ta=25 °C)

• Reverse voltage VR 15 V

• Operating temperature Topr –35 to +85 °C

• Storage temperature Tstg –65 to +150 °C

Description

The 1T409 is a variable capacitance diode
designed for UHF-band VCO using a super-small­miniature flat package (SSVC).

Features

• Super-small-miniature flat package

• Low series resistance: 0.4 Ω Max. (f=470 MHz)

• Large capacitance ratio: 2.5 Typ. (C2/C10)

• Small leakage current: 3 nA Max. (VR=15 V)

Applications

• UHF-band VCO

• Local oscillator for cordless telephone

• Local oscillator for cellular equipment

Structure

Silicon epitaxial planar type diode

Variable Capacitance Diode

M-290

1T409

Electrical Characteristics (Ta=25 °C)

Item
Reverse current
Diode capacitance
Capacitance ratio

Series resistance

Symbol

IR

C2

C10

C2/C10

rs

Conditions

VR=15 V
VR=2 V, f=1 MHz
VR=10 V, f=1 MHz

VR=5V, f=470 MHz

Min.

14.26

5.46

2.2

Typ.

2.5

0.3

Max.

3

15.96

6.46

0.4

Unit

nA
pF
pF

Ω

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1T409

1 2 5 10 20 50

1

2

5

10

20

50

100

Diode capacitance vs. Reverse voltage

V

R-Reverse voltage (V)

C-Diode capacitance (pF)

Ta=25°C

1

10

Reverse current vs. Ambient temperature

–20 0 20 40 60 80

Ta-Ambient temperature (°C)

I

R

-Reverse current (pA)

0.1

0.70

0.90

Forward voltage vs. Ambient temperature

–20 0 20 40 60 80

Ta-Ambient temperature (°C)

V

F

-Forward voltage (V)

IF=1mA

0.80

0.60

25

35

Reverse voltage vs. Ambient temperature

–20 0 20 40 60 80

Ta-Ambient temperature (°C)

V

R

-Reverse voltage (V)

30

20

VR=15V

I

R=10µA