Characteristic

Value

20 mA

250 mW

-55°C to +150°C

-55°C to +125°C

Absolute Maximum Ratings

Alpha Industries, Inc. [781] 935-5150

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

1

Specifications subject to change without notice. 10/99A

Hyperabrupt Junction Tuning Varactors

Features

I High Q

I Low Series Resistance for Low Phase

Noise

I Multiple Packages SOD-323, SC-79

and SC-70

I Designed for High Volume Commercial

Applications

I SPICE Models are Available

SMV1129 and SMV1139

Description

The SMV1129 and SMV1139 silicon hyperabrupt junction

varactor diodes are designed for use in VCOs requiring

low resistance. The low resistance of these varactors

makes them appropriate for high Q resonators in

wireless system VCOs to frequencies beyond 2.5 GHz.

o Available through distribution.

For other packages or configurations, please contact the factory.

Single

Single

Common Anode

SOD-323

SC-79

SC-70

o SMV1129-011

o SMV1129-079

SMV1129-073

o SMV1139-011

o SMV1139-079

Part

500 MHz

Number

(pF)

(Ratio)

(Ratio)

(

Ω

Ω)

Min.

Typ.

Max.

Min.

Typ.

Min.

Typ.

Max.

SMV1129

17.50

19.0

20.50

1.4

1.53

2.0

2.5

0.4

SMV1139

4.95

5.4

5.85

1.4

1.53

2.0

2.5

0.6

Electrical Specifications at 25°C