SMV2025-079LF

Overview

The SMV2025-079LF is a silicon hyperabrupt tuning varactor diode manufactured by Skyworks Solutions, Inc. It operates within a reverse voltage range of 0 to 20 V and features a minimum capacitance ratio of 2.2 at 2 V to 10 V. Electrical specifications include a maximum reverse current of 20 nA at 19 V, a typical series resistance of 0.8 Ω at 470 MHz with 1 V reverse bias, and a breakdown voltage of 20 V. The device utilizes an SC-79 surface mount package with a parasitic inductance of 0.70 nH.

Feature Summary

• Designed for low phase noise applications through minimized series resistance and leakage current.
• Provides high capacitance ratio suitable for wide bandwidth voltage-controlled oscillators and phase shifters.
• Offers broad tuning range utilizing a silicon hyperabrupt junction structure.

Applications

• Wide bandwidth and low phase noise voltage controlled oscillators (VCOs)
• Voltage-tuned phase shifters and filters
• Miniature RF and microwave tuners

Procurement Notes

Verify component authenticity against the official Skyworks datasheet prior to integration. Confirm that the specific ordering suffix matches the required SC-79 package configuration. Ensure all handling procedures strictly adhere to the manufacturer's electrostatic discharge precautions and moisture sensitivity level guidelines during storage and assembly processes.

Selection Notes

Select this component when a high Q-factor tuning element is required for RF circuits. The hyperabrupt junction profile supports wide frequency deviation requirements. Verify that the operating environment remains within the specified junction temperature limits and that the available reverse voltage swing aligns with the desired capacitance tuning curve.

Part Context

This component belongs to the SMV2025 series of surface mount silicon hyperabrupt tuning varactor diodes. The series includes variants such as the SMV2025-040LF, which utilizes an SOD-882 package. These devices are engineered specifically for high-performance RF applications requiring precise voltage-dependent capacitance control.

Replacement Considerations

The datasheet identifies the Toshiba 1SV280 varactor diode as a competitive cross-reference. Evaluate electrical compatibility regarding capacitance ratios and series resistance before substituting components in existing designs.

FAQ

What is the minimum capacitance ratio specification for the SMV2025-079LF?

The minimum capacitance ratio from 2 V to 10 V is specified as 2.2.

What is the maximum reverse voltage rating for this device?

The absolute maximum reverse voltage rating is 20 V.

Does the SMV2025-079LF support lead-free soldering?

Yes, the device is rated to Moisture Sensitivity Level 1 (MSL1) at 260 °C and can be used for lead or lead-free soldering.