Hyperabrupt Tuning Varactors

SMV1232–SMV1237

2

Alpha Industries, Inc. [781] 935-5150

• Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com

Specifications subject to change without notice. 6/99A

0.1

10.0

1.0

100.0

6.0

8.0

4.0

Reverse Voltage (V)

Capacitance vs. Reverse Voltage

2.0

0

SMV1237

SMV1236

SMV1235

SMV1234

SMV1233

SMV1232

-4

-3

-2

-1

0

1

2

3

4

5

-40

-20

0

20

40

60

80

Temperature (˚C)

Relative Capacitance Change

vs. Temperature

10

8

6

4

2

0

-2

-4

-6

-8

-40

-20

0

20

40

60

80

Temperature (˚C)

Relative Series Resistance Change

vs. Temperature @ 500 MHz

0

1

2

Reverse Voltage (V)

Series Resistance vs. Reverse Voltage

@ 500 MHz

0

1

2

3

4

5

SMV1232

SMV1233

SMV1234

SMV1235

SMV1237

SMV1236

Typical Performance Data

Q

Part

@ 3 V

@ 6 V

500 MHz

@ 3 V

Number

(pF)

(pF)

(pF)

(Ratio)

(Ratio)

(

Ω

Ω)

50 MHz

Min.

Max.

Typ.

Typ.

Min.

Max.

Min.

Max.

Max.

Typ.

SMV1232

2.34

2.86

1.5

0.94

1.5

1.9

2.6

3.3

1.50

1400

SMV1233

3.00

3.60

1.8

1.10

1.5

1.9

2.6

3.3

1.20

1200

SMV1234

5.85

7.15

3.6

2.00

1.6

2.0

2.8

3.4

0.80

1000

SMV1235

10.35

12.65

6.4

3.60

1.6

2.0

2.9

3.4

0.60

750

SMV1236

15.50

18.50

9.2

5.30

1.6

2.0

3.0

3.5

0.50

700

SMV1237

45.00

54.00

26.9

14.40

1.6

2.0

3.0

3.5

0.25

500

Electrical Specifications at 25°C