Sony 1T368A Datasheet

Variable Capacitance Diode

Description

The 1T368A is a variable capacitance diode designed
for electronic tuning of wide-band CATV tuners using
a super miniature package.

Features

• Super miniature package

• Low series resistance: 0.75Ω Max. (f = 470MHz)

• Large capacitance ratio: 11.5 Typ. (C2/C25)

• Small leakage current: 10nA Max. (VR = 28V)

• Capacitance deviation in a matching group: within 2%

Applications

Electronic tuning of wide-band CATV tuners

Structure

Silicon epitaxial planar type diode

Absolute Maximum Ratings (Ta = 25°C)

• Reverse voltage VR 34 V

• Operating temperature Topr –20 to +75 °C

• Storage temperature Tstg –65 to +150 °C

– 1 –

E99804-PS

Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.

1T368A

M-235

Electrical Characteristics (Ta = 25°C)

Reverse voltage
Reverse current

Diode capacitance

Capacitance ratio

Series resistance
Capacitance deviation in a matching group

VR
IR
C2
C25
C2/C25
C25/C28
rs
∆C

IR = 1µA
VR = 28V
VR = 2V, f = 1MHz
VR = 25V, f = 1MHz

CD = 14pF, f = 470MHz
VR = 2 to 25V, f = 1MHz

34.0

29.54

2.64

11.0

1.03

11.5

10.0

33.54

2.94

0.75

2.0

V
nA
pF
pF

Ω

%

UnitMax.Typ.Min.ConditionsSymbolItem

– 2 –

1T368A

1 2 5 10 20 50

1

2

5

10

20

50

100

Diode capacitance vs. Reverse voltage

VR – Reverse voltage [V]

C – Diode capacitance [pF]

Ta = 25°C

100

1

10

100

Reverse current vs. Ambient temperature

–20 0 20 40 60 80

Ta – Ambient temperature [°C]

I

R

– Reverse current [pA]

VR = 28V

0.60

0.80

Forward voltage vs. Ambient temperature

–20 0 20 40 60 80

Ta – Ambient temperature [°C]

V

F

– Forward voltage [V]

IF = 1mA

0.70

0.50

Ta – Ambient temperature [°C]

40

50

Reverse voltage vs. Ambient temperature

–20 0 20 40 60 80

V

R

– Reverse voltage [V]

45

35

I

R = 10µA