MA46H071-1056

Overview

The MA46H071-1056 is a surface mount gallium arsenide tuning varactor featuring a hyperabrupt junction with a constant gamma of 0.75 from 0 to 20 volts. It provides a total capacitance of 0.9 pF at 4 V reverse bias and 1.1 pF at 0 V, yielding a capacitance ratio of 6.4. The device exhibits a minimum quality factor of 4500 at 4 V reverse bias. Housed in the hermetic Case Style 1056 package, it utilizes silicon nitride protected junctions for low leakage current and high reliability.

Feature Summary

• Hyperabrupt junction with constant gamma of 0.75 across 0 to 20 volts
• Very high quality factor approaching that of abrupt junction varactors
• Silicon nitride protected junctions for low leakage current and high reliability
• Hermetic Case Style 1056 packaging available

Applications

• Narrow bandwidth voltage controlled oscillators (VCOs)
• Voltage tuned filters (VTFs) requiring wide tuning range
• Applications demanding very high quality factor combined with wide tuning range

Procurement Notes

Verify the specific ordering suffix matches the required case style, as the datasheet indicates availability in multiple configurations. Confirm that the component meets JANTX screening requirements if applicable, noting that Case Style 1056 is hermetic and may be screened to this level. Ensure the design accommodates the absolute maximum ratings regarding operating temperature and power dissipation derating.

Selection Notes

Select this component when narrow bandwidth applications require a wide tuning range alongside a very high quality factor. The 0.75 gamma characteristic offers higher capacitance change versus tuning voltage compared to abrupt junctions while maintaining superior Q performance. Consider the hermetic Case Style 1056 for environments requiring sealed packages or potential military screening standards.

Part Context

This part belongs to the MA46H070 through MA46H073 family of MACOM's surface mount GaAs tuning varactors. This specific family is distinguished by its 0.75 constant gamma hyperabrupt junctions designed for operation from 0 to 20 volts. It complements the 1.25 and 1.5 gamma families which target wider bandwidth applications with different capacitance ratios and quality factor profiles.

Replacement Considerations

MA46H070-1056, MA46H072-1056, MA46H073-1056