MAVR-045448-0287AT

Overview

The MAVR-045448-0287AT is a silicon abrupt tuning varactor diode from the MAVR-0454xx series, designed for general-purpose tuning in HF to UHF frequency bands. It features a single configuration housed in an SOT-23 surface mount plastic package with 100% matte tin plating. The device utilizes UHCVD/ion-implanted technology and an SPC process for superior repeatability of capacitance versus voltage (C vs. V) and quality factor versus voltage (Q vs. V). Key electrical specifications include a nominal total capacitance of 47 pF, a minimum capacitance ratio of 4.7, and a minimum Q of 400 at 4 V reverse bias and 1 MHz. It operates within a 0-30 V range, with a minimum breakdown voltage of 30 V.

Feature Summary

• Highly repeatable performance achieved through UHCVD/ion-implanted silicon technology and SPC process control
• Designed for efficient wide-range tuning across a 0 to 30 V operating range
• Cost-effective surface mount construction using 100% matte tin plating

Applications

• Voltage controlled oscillators (VCOs)
• Voltage tuned filters in radios
• Cable TV tuners
• Test instruments requiring low cost and excellent lot-to-lot repeatability

Procurement Notes

Verify the specific ordering suffix to confirm the exact package style, internal configuration, and packaging format required for your assembly line. Contact the manufacturer or authorized representative for complete part identification details, as suffixes define critical physical attributes. Ensure compliance with RoHS directives if applicable to your manufacturing standards.

Selection Notes

Select this component when designing circuits for HF through UHF ranges that demand high consistency between production lots. The 47 pF nominal capacitance suits applications requiring moderate tuning ratios. Evaluate the parasitic inductance and capacitance values provided in the datasheet to ensure they align with your RF layout constraints and impedance matching requirements.

Part Context

This part belongs to the MAVR-0454xx series of silicon abrupt tuning varactors. The series offers various capacitance values and configurations, including single and common cathode options, packaged in SOT-23 or SOT-323 formats. This specific model represents the higher capacitance end of the standard single-configuration lineup within the series.

Replacement Considerations

Review other members of the MAVR-0454xx series for alternative capacitance values or common cathode configurations. Verify that any substitute maintains the required SOT-23 footprint and electrical characteristics such as breakdown voltage and Q factor.