MA46H072-1056

Overview

The MA46H072-1056 is a surface mount gallium arsenide tuning varactor diode featuring a hyperabrupt junction with a constant gamma of 0.75 from 0 to 20 volts. It provides a total capacitance of 3.3 pF at 0 V reverse bias and 2.7 pF at 4 V reverse bias, yielding a capacitance ratio of 7.5. The device exhibits a minimum quality factor of 3000 at 4 V reverse voltage. Electrical specifications include a breakdown voltage of 20 V minimum at 10 µA and a maximum reverse current of 100 nA at 16 V. It operates within a temperature range of -65°C to +150°C.

Feature Summary

• Hyperabrupt junction design with constant gamma of 0.75 for wide tuning range
• Silicon nitride protected junctions ensuring low leakage current and high reliability
• Very high quality factor approaching that of abrupt junction varactors
• Hermetic case style 1056 available for screening to JANTX levels

Applications

• Narrow bandwidth Voltage Controlled Oscillators (VCOs)
• Voltage Tuned Filters (VTFs) requiring wide tuning range
• RF circuits demanding very high quality factors

Procurement Notes

Verify the specific ordering suffix to confirm the package style, as the base model number requires a case designation such as -1056 or -1088 to be complete. Confirm RoHS compliance status through official manufacturer documentation prior to procurement. Ensure the selected variant matches the required hermetic sealing if environmental screening is necessary for the application.

Selection Notes

Select this component when narrow bandwidth applications require a wide tuning range combined with a high quality factor. The 0.75 gamma characteristic offers higher capacitance change versus tuning voltage compared to other families. Verify that the operating voltage range falls within the 0 to 20 volt specification for optimal performance and linearity in the intended circuit design.

Part Context

This part belongs to the MA46 Series of surface mount GaAs tuning varactors manufactured by MACOM Technology Solutions. The series includes three families differentiated by their gamma values: 0.75, 1.25, and 1.5. The MA46H07x family specifically targets applications needing high Q-factor characteristics similar to abrupt junctions but with greater capacitance variation across the tuning voltage spectrum.

Replacement Considerations

Compatible substitutes within the same family include MA46H070, MA46H071, and MA46H073, which share identical electrical characteristics but differ in total capacitance values. Alternative package styles such as ODS-1088 are available for the same electrical part number.