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MA46580 & MA46585
Beam Lead Constant Gamma GaAs Tuning Varactor
Rev. V4
Features
• Constant Gamma = 1.0 & 1.25 available • High Q (3000 minimum at 4V 50MHz) • Strong Beam Construction
(Minimum 10 gram beam strength) • Low Parasitic Capacitance • Close Capacitance tracking • Lead-Free (RoHs Compliant) equivalents
available with 260°C reflow compatibility
Description
The MA46580 & MA46585 series beam lead constant gamma tuning varactors are hyper-abrupt junction gallium arsenide diodes with a constant gamma of 1.0 or 1.25. The high Q values and the elimination of package parasitics make these varactors very attractive for voltage controlled oscillators that require linear tuning. These tuning diodes are useful at frequencies as high as 40 Ghz.
The beam lead design eliminates almost all of the package parasitics resulting in improved linearity of the junction capacitance change with applied reverse bias voltage. This improves tracking between diodes and can improve VCO li.