MAVR-045441-0287FT

Overview

The MAVR-045441-0287FT is a silicon abrupt tuning varactor diode from the MAVR-0454xx series, manufactured by MACOM Technology Solutions. It features a common cathode configuration and is housed in an SOT-323 surface mount plastic package. The device utilizes UHCVD/ion-implanted technology for high repeatability across HF to UHF frequency bands. Key electrical specifications include a nominal total capacitance of 12 pF (range: 10.8–13.2 pF), a minimum capacitance ratio of 4.6 at VR = 4 V, and a minimum Q factor of 1200 at VR = 4 V and 1 MHz. Absolute maximum ratings specify a reverse voltage of 30 V and a forward current of 50 mA.

Feature Summary

• UHCVD/ion-implanted silicon construction ensures superior lot-to-lot repeatability for C vs. V and Q vs. V characteristics.
• Designed for efficient wide tuning across a 0 - 30 V range in general purpose applications.
• Available in cost-effective surface mount packages with 100% matte Sn plating.

Applications

• Voltage controlled oscillators (VCOs)
• Voltage tuned filters
• Radio tuners
• Cable TV tuners
• Test instruments

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package style, configuration, and packaging details. Contact the manufacturer or authorized representatives for complete part identification requirements. Ensure compliance with RoHS EU directive restrictions on hazardous substances during procurement.

Selection Notes

Select this component for HF through UHF tuning applications requiring low cost and excellent repeatability. Consider the 12 pF nominal capacitance and 4.6 capacitance ratio for circuit design. Verify that the SOT-323 package dimensions and parasitic values (Ls = 1.2 nH, Cp = 0.11 pF) align with the target PCB layout and RF performance requirements.

Part Context

This part belongs to the MAVR-0454xx Series of silicon abrupt tuning varactors. The series includes variants with single configurations (e.g., MAVR-045441-0287AT) and different capacitance values. The FT suffix specifically denotes the common cathode configuration within the SOT-323 package family.

Replacement Considerations

Direct substitutes within the same series include MAVR-045441-0287AT, which shares identical electrical parameters but uses a single configuration instead of common cathode. Other series members like MAVR-045440-0287FT offer similar functionality with a 10 pF nominal capacitance.

FAQ

What is the breakdown voltage specification for the MAVR-045441-0287FT?

The breakdown voltage is specified as a minimum of 30 V at a reverse current of 10 mA.

What are the absolute maximum ratings for operating temperature?

The operating and storage temperature ranges are both specified from -55°C to +125°C.

How does the 'FT' suffix define the device configuration?

The 'FT' suffix indicates that the device has a common cathode configuration and is packaged in an SOT-323 format.