Panasonic MA2X329 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

MA2X329

Silicon epitaxial planar type

For 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 current (DC) I

Junction temperature T

Storage temperature T

D

R

RM

F

j

stg

32 V

34 V

20 mA

150 °C

−55 to +150 °C

Unit : mm

1 : Anode
2 : Cathode

Mini Type Package (2-pin)

Marking Symbol: 6B

■ Electrical Characteristics Ta = 25°C

Parameter Symbol Conditions Min Typ Max Unit

Reverse current (DC) I

Diode capacitance C

Capacitance ratio

Diode capacitance deviation ∆CC

Series resistance

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

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

*

R

D(1V)

C

D(3V)

C

D(25V)

C

D(10V)

C

D(17V)

C

D(3V)/CD(25V)

r

D

VR = 30 V 10 nA

VR = 1 V, f = 1 MHz 42 pF

VR = 3 V, f = 1 MHz 25.87 32.64 pF

VR = 25 V, f = 1 MHz 2.58 3.20 pF

VR = 10 V, f = 1 MHz 9.15 12.44 pF

VR = 17 V, f = 1 MHz 3.28 4.46 pF

9 

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

3 %

CD = 9 pF, f = 470 MHz 1.6 Ω

1

MA2X329

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 = 33 V

)
nA

(

100

10

R

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

)

1.03

CD  T

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

Reverse current Ta (°C

a

f = 1 MHz

VR = 3 V

10 V
17 V
25 V

)

0.1

Reverse current I

0.01
0 40 80 120 16020 60 100 140

Reverse current Ta (°C

CD rank classification

Primary rank classification Secondary rank classification

2.60

2.67

8

26.00
9

26.65
8

27.32
7

28.00
6

28.70
5

29.42
4

(pF)

30.16
3

D(3V)

30.91

C

2

31.68
1

32.47

)

C

(pF)

D(25V)

2.74

2.81

2.88

2.95

3.02

7654321

3.10

3.18

(pF)

C

D(17V)

3.30

3.38

3.46

3.55

3.64

3.73

3.82

3.92

4.02

4.12

4.22

4.33

12

9.20



9.43

9.67

9.91

10.16

10.41

(pF)

10.67

D(10V)

10.94

C

11.21

11.49

11.78

12.07

12.37

1110987654321

12

11

10

9

8

7

6

5

4

3

2

1

4.44

2