Single Diode Configuration: The MA45300 series of silicon abrupt junction tuning varactors has been designed to obtain the highest Q possible. All diodes in this series have a high density silicon dioxide passivation which results in low leakage currents, low phase noise and low post tuning drift. These diodes are available in axial lead glass packages. This series of silicon abrupt tuning varactors is designed for applications through S-band. Silicon abrupt junction tuning varactors are useful for transistor VCOs and tunable filters, phase shifters or pre-selectors. All tuning varactors in the MA45300 series are capable of meeting the performance tests dictated by the methods and procedures of the latest revisions of MIL-S-19500 MIL-STD-202 and MIL-STD-750 which specified mechanical, electrical, thermal and other environmental tests common to semiconductor products.