Single Diode Configuration: MACOM offers four families of low cost surface mount gallium arsenide tuning varactors. All families have silicon nitride protected junctions for low leakage current and high reliability. The MA46H070 through MA46H073 family has hyper abrupt junctions with constant gamma of 0.75 from 0 to 20 volts and very high quality factor. The MA46H070 through MA46H073 (gamma 0.75) family of constant gamma hyper abrupt GaAs tuning varactors has quality factor approaching that of abrupt junction varactors, but higher capacitance change versus tuning voltage. These diodes are very well suited for narrower bandwidth VCOs and VTFs where wide tuning range and very high quality factor are required.