SMV1770-079 View Datasheet(PDF) - Alpha Industries

Part Name

Description

View to exact match

SMV1770-079

Hyperabrupt Junction Tuning Varactor

Alpha Industries 

Hyperabrupt Junction Tuning Varactor

Features

s Low Series Resistance

s High Capacitance Ratio

s Ultra Small Size SC-79 Package

s Designed for High Volume, Low Cost

Battery Applications

s Available in Tape and Reel Packaging

SMV1770-079

Description

The SMV1770-079 is a silicon hyperabrupt junction varactor

diode specifically designed for battery operation.The

specified high capacitance ratio and low RS of this varactor

make it appropriate for low noise VCOs used at frequencies

in wireless systems to beyond 2.5 GHz. Applications include

low noise and wideband UHF and VHF VCO for GSM, PCS,

CDMA and analog phones.

Absolute Maximum Ratings

Characteristic

Forward Current (IF)

Power Dissipation (PD)

Storage Temperature (TST)

Operating Temperature (TOP)

Value

20 mA

250 mW

-55°C to +150°C

-55°C to +125°C

Electrical Specifications at 25°C

Parameter

Reverse Current (IR)

Capacitance (CT)

Capacitance (CT)

Capacitance Ratio (CTR)

Series Resistance (RS)

Breakdown Voltage (VBR)

Condition

VR = 8 V

CT @ 0.5 V, VR = 0.5 V, F = 1 MHz

CT @ 2.5 V, VR = 2.5 V, F = 1 MHz

CT (0.5 V)/CT (2.5 V)

VR = 1 V, F = 470 MHz

IR = 10 µA

Min.

22.1

7.7

2.3

12.0

Typ.

23.6

8.6

2.7

0.4

Max.

20.0

25.1

9.8

0.5

Unit

nA

pF

pF

Ω

V

Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com

1

Specifications subject to change without notice. 1/01A

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