SMV2026-079LF

Overview

The SMV2026-079LF is a silicon surface-mount hyperabrupt tuning varactor diode manufactured by Skyworks Solutions Inc. It operates within a broad 15-V reverse voltage range and provides a minimum capacitance ratio of 2.0 (measured at 2 V to 10 V). The device features low series resistance and leakage current, making it suitable for high-Q tuning applications. Electrical specifications include a maximum reverse current of 20 nA at 15 V, a breakdown voltage of 15 V, and a typical series resistance of 0.5 Ω at 470 MHz with 5 V reverse bias. The component is housed in an SC-79 package with a parasitic inductance of 0.70 nH.

Feature Summary

• Low series resistance and leakage current designed for low phase-noise Voltage Controlled Oscillators (VCOs)
• High-capacitance ratio of 2.0 minimum from 2 V to 10 V for wide bandwidth tuning
• Broad 15-V tuning range supporting wide-range voltage-tuned phase shifters and filters

Applications

• Wide-bandwidth and low phase-noise VCOs
• Wide-range, voltage-tuned phase shifters and filters
• Miniature RF and microwave tuners

Procurement Notes

Verify the specific ordering suffix against official Skyworks documentation to confirm the package type. The -079LF designation corresponds to the SC-79 package. Confirm RoHS compliance status and lead-free markings on the physical component. Check for any Product Change Notifications or End-of-Life notices that may affect long-term availability and supply chain stability.

Selection Notes

Select this component when a hyperabrupt junction profile is required for wide tuning ranges. Ensure the design accommodates the 15 V maximum reverse voltage rating. Verify that the SC-79 package dimensions and parasitic inductance values align with the target RF circuit layout requirements. Consider thermal dissipation limits during operation.

Part Context

The SMV2026-079LF belongs to the SMV2026 series of surface-mount silicon hyperabrupt tuning varactor diodes. This series includes variants such as the SMV2026-040LF, which utilizes an SOD-882 package. The series is engineered to provide competitive performance characteristics for RF tuning applications requiring stable capacitance variation over voltage.

Replacement Considerations

The datasheet identifies the Toshiba 1SV179 varactor diode as a competitive cross-reference. Verify pinout compatibility and electrical parameter alignment before substitution.