Panasonic MA2Z357 Datasheet

Variable Capacitance Diodes

MA2Z357

Silicon epitaxial planar type

For CATV tuner

INDICATES
CATHODE

Unit : mm

0.4 ± 0.15

■ Features

•

Large capacitance ratio

•

Small series resistance r

D

■ Absolute Maximum Ratings Ta = 25°C

Parameter Symbol Rating Unit

Reverse voltage (DC) V

Peak reverse voltage

*

V

Junction temperature T

Storage temperature T

R

RM

j

stg

34 V

35 V

150 °C

−55 to +150 °C

Note) * : RL = 10 kΩ

■ Electrical Characteristics Ta = 25°C

Parameter Symbol Conditions Min Typ Max Unit

Reverse current (DC) I

Diode capacitance C

Capacitance ratio

R

D(0V)

C

D(2V)

C

D(25V)

C

D(10V)

C

D(17V)

C

D(2V)/CD(25V)

Diode capacitance deviation ∆CC

2

Series resistance

*

r

D

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

  2．*1: Measurement at Low Signal Level

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

VR = 30 V 10 nA

1

*

VR = 0 V, f = 1 MHz 58.0 pF

VR = 2 V, f = 1 MHz 29.00 34.30 pF

VR = 25 V, f = 1 MHz 2.53 2.92 pF

VR = 10 V, f = 1 MHz 6.40 8.32 pF

VR = 17 V, f = 1 MHz 3.50 4.35 pF

D(2V)(10V)(17V)(25V)

CD = 9 pF, f = 470 MHz 0.54 Ω

12

0.4 ± 0.15

0.9 ± 0.1

0 to 0.05

1.7 ± 0.1

2.5 ± 0.2

S-Mini Type Package (2-pin)

Marking Symbol: 7K

11.0 

1.25 ± 0.1

− 0.05

+ 0.1

0.3

− 0.06

+ 0.1

0.16

1 : Anode
2 : Cathode

2.0 %

1

MA2Z357

Variable Capacitance Diodes

120

IF  V

100

)

mA
(

80

F

60

40

Forward current I

20

0

0 0.2 0.4 0.6 0.8 1.0 1.2

Forward voltage VF (V

CD  T

1.03

1.02

1.01

)

)

a

T
(

1.00

= 25°C

D

a

C

T
(

D

C

0.99

F

Ta = 60°C

25°C

a

− 40°C

)

f = 1 MHz

VR = 2 V

10 V
17 V
25 V

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

a

Reverse voltage VR (V

= 25°C

)

IR  T

100

)

10

µA
(

R

1

0.1

Reverse current I

0.01
0 40 80 120 160

a

Ambient temperature Ta (°C

)

0.98

0.97
0 20 40 60 80 100

Ambient temperature Ta (°C

CD rank classification

Primary rank classification

2.54

2.58

9

29.15

29.59

30.03

30.48

30.94

31.40

(pF)

31.87

D(2V)

32.35

C

32.84

33.33

33.83

34.13

87654321
11

10

9

8

7

6

5

4

3

2

1

2.62

)

C

(pF)

D(25V)

2.66

2.70

2.74

2.78

2.82

Note: Tracking guarantee range

(Capacitance deviation 2.0%)

2.86

2.90

(pF)

D(10V)

C

6.43

6.53

6.62

6.72

6.82

6.93

7.03

7.14

7.24

7.35

7.46

7.57

7.69

7.80

7.92

8.04

8.16

8.28

Secondary rank classification

(pF)

C

D(17V)

3.52

3.57

3.62

3.68

3.73

3.79

3.85

3.90

14

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

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

3.96

4.02

4.08

4.14

4.21

4.27

4.33

2