MAVR-000401-0287FT

Overview

The MAVR-000401-0287FT is a surface-mount hyperabrupt junction silicon tuning varactor from the MA4ST400 series. It is housed in an SOT-23 package and features ion-implanted construction with thermal oxide passivation. The device supports octave bandwidth tuning across High Frequency to Ultra High Frequency bands. Key electrical characteristics include a nominal capacitance of 47 pF, a minimum breakdown voltage of 30 V, and a typical diode capacitance ratio of 9.5:1. The component is available in lead-free RoHS-compliant configurations.

Feature Summary

• Ion-implanted hyperabrupt junction design for high quality factor and capacitance ratio
• SOT-23 surface mount package suitable for automated assembly
• Thermal oxide passivation for enhanced reliability

Applications

• Octave bandwidth tuning in HF to UHF frequency bands
• Voltage-controlled oscillators (VCOs)
• RF phase shifters

Procurement Notes

Verify the specific ordering suffix to confirm plating options and compliance status. The 'FT' suffix typically indicates tape and reel packaging and lead-free composition. Confirm availability through authorized MACOM distributors as this component may be subject to factory special order requirements.

Selection Notes

Select this component when a high capacitance ratio is required for wideband tuning applications. Ensure the operating voltage remains within the 30 V reverse voltage limit. Verify that the SOT-23 package dimensions fit the target PCB layout constraints.

Part Context

This part belongs to the MA4ST400 series of surface mount hyperabrupt varactors. The series offers various capacitance values and configurations, including singles and common cathode pairs, designed for linear tuning performance in RF circuits.

Replacement Considerations

Cross-reference with other MA4ST400 series variants for different capacitance values. Verify pinout compatibility if substituting with similar hyperabrupt varactors from other manufacturers.