SMV1408-001LF

Overview

The SMV1408-001LF is a plastic-packaged abrupt junction tuning varactor diode from the Skyworks SMV1405 to SMV1430 series. It is designed for Voltage Controlled Oscillators (VCOs) requiring tight capacitance tolerances and high-Q resonators in wireless systems operating above 10 GHz. The device features low series resistance to minimize phase noise. Key electrical specifications include a typical capacitance of 2.90 pF at 1 V reverse bias, a minimum reverse voltage of 30 V, and a maximum forward current of 20 mA. It operates within a temperature range of -55 °C to +125 °C.

Feature Summary

• Abrupt junction design optimized for high-Q resonators in wireless system VCOs
• Low series resistance characteristics suitable for frequencies above 10 GHz
• Characterized for capacitance stability over temperature variations

Applications

• High-Q resonators in wireless system Voltage Controlled Oscillators
• Electronically tunable filters
• Impedance matching circuits

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance and lead-free status via official datasheets. Ensure proper ESD handling protocols are followed during storage and assembly to prevent electrostatic discharge damage. Check moisture sensitivity level requirements before soldering.

Selection Notes

Select this component when designing VCOs requiring specific capacitance values around 2.90 pF at 1 V reverse bias. Consider the SOT-23 package configuration for standard surface mount applications. Evaluate the Q factor and series resistance parameters against the target frequency requirements to ensure optimal phase noise performance.

Part Context

This part belongs to the Skyworks SMV1405 to SMV1430 series of silicon abrupt junction varactor diodes. The series offers various capacitance options packaged in SC-79, SOT-23, and SOD-882 formats. These components are specifically engineered for RF and microwave applications where tight capacitance tolerances and high quality factors are critical for circuit performance.

Replacement Considerations

SMV1405-001LF: Lower capacitance variant with similar package and characteristics. SMV1413-001LF: Higher capacitance option within the same series. SMV1430-001LF: Ultra-low capacitance alternative for different tuning ranges.