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Description and Applications

M/A-COM’s MA4ST2000 series is a highly repeatable, UHCVD/ion-implanted, hyperabrupt silicon tuning varactor in a cost effective surface mount package. This series of varactors is designed for high capacitance ratio for low battery voltage operation. It is efficient for wide band tuning and low phase noise application where the supply voltage is limited to 5 volts or less. Varactors in this series have a typical 18:1 capacitance ratio between 0.1 V and 4.7 V and a 12:1 ratio between 0.1 V and 2.7 V. The Varactors are offered as Singles in both SC-79 and SOD-323 configurations with Common Cathode version offered in a SC-70, 3 Lead. These diodes are offered with standard Sn/Pb plating , as well as 100 matte Sn plating on our RoHs compliant equivalent devices.

Features

? Ultra High Capacitance Ratio,

C(0.1V)/C(4.7V) =18:1

C(0.1V)/C(2.7V) = 12:1

? Surface Mount Plastic Packages: SC-79, SOD-323,

SC-70, 3 Lead

? SPC Process for Superior C vs. V and Q vs. V

Repeatability

? RoHS Compliant equivalents available with 260°C

reflow compatibility