MAVR-000403-0287FT

Overview

The MAVR-000403-0287FT is a surface mount hyperabrupt junction silicon tuning varactor from the MAVR-000400 Series, manufactured by MACOM Technology Solutions. It is housed in an SOT-23 package and features thermal oxide passivation with ion-implanted construction for excellent capacitance-voltage repeatability. The device operates within the HF to UHF frequency bands and supports octave bandwidth tuning. Key electrical specifications at TA = +25°C include a nominal total capacitance (CT) of 15.0 pF at VR = 4 V, a typical capacitance ratio of 7.0, and a maximum reverse current of 10 nA at VR = 30 V.

Feature Summary

• Ion-implanted hyperabrupt junction design providing high quality factor and capacitance ratios up to 9.5:1
• SPC monitored ion implantation ensures excellent lot-to-lot C-V repeatability
• RoHS compliant lead-free matte Sn plating with 260 °C reflow compatibility

Applications

• Voltage controlled oscillators (VCOs)
• Voltage tuned filters in radios
• Cable TV tuners
• Test instruments requiring linear tuning performance

Procurement Notes

Verify component authenticity through authorized MACOM distributors or direct channels. Confirm RoHS compliance status and packaging configuration matches project requirements. Ensure handling procedures adhere to ESD control standards during assembly. Review datasheet revision history for any specification updates prior to final procurement.

Selection Notes

Select this part for applications requiring precise capacitance matching and stable C-V characteristics in the HF to UHF range. The common cathode configuration allows for differential tuning circuits. Evaluate thermal dissipation limits against operating conditions. Consider tighter tolerance options if standard ±10% capacitance variation exceeds circuit requirements.

Part Context

This component belongs to the MAVR-000400 Series of surface mount hyperabrupt varactors. The series includes single diode variants (suffix AT) and common cathode pairs (suffix FT). Other members like MAVR-000401 and MAVR-000409 offer different base capacitance values while sharing similar package styles and performance characteristics.

Replacement Considerations

Direct substitutes within the same series include MAVR-000403-0287AT (single diode version) or other MAVR-0004xx-0287FT models with adjusted capacitance values. Verify pinout compatibility and electrical parameters before substitution.