MA46H070-1056

Overview

The MA46H070-1056 is a surface mount gallium arsenide tuning varactor diode from the MACOM MA46 Series. It features a hyperabrupt junction with a constant gamma of 0.75, operating within a reverse voltage range of 0 to 20 volts. The device provides a total capacitance of 0.5 pF at 4 V and achieves a minimum quality factor of 4500 at 4 V and 50 MHz. It is housed in the hermetic ODS-1056 case style, which supports screening to JANTX levels. The component operates between -65°C and +150°C, with a maximum forward current of 50 mA and power dissipation of 50 mW.

Feature Summary

• Hyperabrupt junction design with constant gamma of 0.75 for wide tuning range
• Hermetic ODS-1056 package suitable for high reliability applications
• Silicon nitride protected junctions ensuring low leakage current

Applications

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

Procurement Notes

Verify the specific ordering suffix to confirm the package style, as the base model number requires a case designation like -1056 or -1088. Confirm RoHS compliance status through official documentation before procurement. Ensure that storage and operating temperature limits are respected during handling and installation to maintain device integrity.

Selection Notes

Select this component when narrow bandwidth VCO or VTF designs require a high quality factor combined with a wide tuning range. The 0.75 gamma value offers higher capacitance change versus tuning voltage compared to abrupt junctions. Verify that the required bias voltage falls within the 0 to 20 volt operational range for optimal performance.

Part Context

This part belongs to the MA46H070 through MA46H073 family, characterized by 0.75 gamma hyperabrupt junctions. These devices are designed for applications where very high quality factors are critical. They differ from the 1.25 and 1.5 gamma families by offering superior Q-factor performance while maintaining significant capacitance variation across the tuning voltage spectrum.

Replacement Considerations

MA46H071-1056, MA46H072-1056, MA46H073-1056