Panasonic MA2X334 Datasheet

Variable Capacitance Diodes

12

3.3 ± 0.2

*(3.8 ± 0.2)

2.7

+ 0.2

− 0.1

1.6

+ 0.2

− 0.1

1.1

+ 0.2

− 0.1

0.16

+ 0.1

− 0.03

0.55 ± 0.1

INDICATES
CATHODE

0.30 to 0.05

5°

5°

*( ): WL type

MA2X334

Silicon epitaxial planar type

For UHF and VHF electronic tuners

■ Features

•

Large capacitance ratio

•

Small series resistance r

•

Mini type package, allowing downsizing of equipment and
automatic insertion through the taping package

■ Absolute Maximum Ratings Ta = 25°C

Parameter Symbol Rating Unit

Reverse voltage (DC) V

Peak reverse voltage V

Forward voltage (DC) I

Junction temperature T

Storage temperature T

D

R

RM

F

j

stg

30 V

34 V

20 mA

150 °C

−55 to +150 °C

Unit : mm

1 : Anode
2 : Cathode

Mini Type Package (2-pin)

Marking Symbol: 6D

■ Electrical Characteristics Ta = 25°C

Parameter Symbol Conditions Min Typ Max Unit

Reverse current (DC) I

Diode capacitance C

Capacitance ratio

Capacitance difference

Diode capacitance deviation

Series resistance

Note) 1．Rated input/output frequency: 470 MHz

  2．*: rf measuring instrument: YHP MODEL 4191A RF IMPEDANCE ANALYZER

*

R

D(3V)

C

D(25V)

C

D(10V)

C

D(17V)

C

D(3V)/CD(25V)

C

D(17V)/CD(25V)

∆C

r

D

VR = 30 V 10 nA

VR = 3 V, f = 1 MHz 11.233 12.781 pF

VR = 25 V, f = 1 MHz 2.020 2.367 pF

VR = 10 V, f = 1 MHz 4.358 5.422 pF

VR = 17 V, f = 1 MHz 2.567 3.100 pF

4.60 6.15 

0.37 pF

C

D(3V)(10V)(17V)(25V)

2%

CD = 9 pF, f = 470 MHz 0.38 0.72 Ω

1

MA2X334

Variable Capacitance Diodes

100

CD  V

50

)
pF

30

(

D

20

10

5

3

Diode capacitance C

2

1

0 8 16 24 324 1220283640

R

f = 1 MHz
T

Reverse voltage VR (V

IR  T

a

VR = 30 V

)

mA
(

R

2

10

10

1

= 25°C

a

)

IF  V

120

100

F

)

mA
(

80

F

60

40

Ta = 60°C

25°C

Forward current I

20

0

0 0.2 0.4 0.6 0.8 1.0 1.2

Forward voltage VF (V

− 40°C

)

CD  T

1.03

1.02

1.01

)

)

a

T
(

1.00

= 25°C

D

a

C

T
(

D

C

0.99

0.98

0.97
0 20 40 60 80 100

Ambient temperature Ta (°C

a

f = 1 MHz

VR = 3 V

10 V
17 V
25 V

)

−1

10

Reverse current I

−2

10

0 40 80 120 16020 60 100 140

Ambient temperature Ta (°C

CD rank classification

•

MA2X334B

2.030

2.060

10

11.290

11.459

11.631

11.806

11.983

12.163

12.345

12.530

(pF)

12.718

D(3V)

C

987654 213
8
7
6
5
4
3
2
1

)

Primary rank classification

C

(pF)

D(25V)

2.091

2.123

2.155

2.187

2.220

2.253

2.287

2.321

2.356

4.380

4.446

4.512

4.580

4.649

4.719

4.789

(pF)

4.861

4.934

D(10V)

C

5.008

5.083

5.159

5.237

5.315

5.395

Secondary rank classification

(pF)

C

D(17V)

2.580

2.619

2.658

2.738

2.698

2.821

2.779

2.906

12

11 10 9 8 7 6 5 4 3 2 1
14
13
12
11
10

9
8
7
6
5
4
3
2
1

2.863

2.950

2.994

3.039

3.085

2