SMVA1253-079LF

Overview

The SMVA1253-079LF is a silicon hyperabrupt junction tuning varactor diode designed for low tuning voltage VCOs. It features an SC-79 package with a parasitic inductance of 0.7 nH. The device operates within a temperature range of -55°C to +125°C and withstands a maximum reverse voltage of 15 V. Key electrical specifications include a typical capacitance of 53 pF at 0.3 V, dropping to 4.8 pF at 4.7 V. The component achieves a high capacitance ratio of 12 between these voltages and maintains a quality factor of 350 at 50 MHz.

Feature Summary

• AEC-Q101 qualified for automotive reliability
• Hyperabrupt junction design for high capacitance ratio
• Optimized for low tuning voltage VCO applications

Applications

• Low tuning voltage VCOs
• In-vehicle infotainment systems
• Navigation systems
• Telematics
• Garage door openers
• Wireless control systems

Procurement Notes

Verify the specific ordering suffix '079' to confirm the SC-79 tape and reel packaging format. Ensure that the procurement channel provides official Skyworks documentation to validate AEC-Q101 qualification status. Confirm RoHS compliance and Green product status through the manufacturer's current datasheet before finalizing orders.

Selection Notes

Select this component when a high capacitance ratio is required for wide frequency tuning ranges in automotive environments. The hyperabrupt junction profile supports efficient operation at low bias voltages. Verify that the operating temperature range of -55°C to +125°C aligns with the specific thermal constraints of the target electronic assembly.

Part Context

This part belongs to the Skyworks SMVA series of surface mount plastic varactor diodes. It is specifically engineered for RF and microwave applications requiring robust performance in vehicular settings. The device utilizes a standard SC-79 outline, facilitating integration into compact circuit designs alongside other industry-standard components.

Replacement Considerations

No direct public substitute part numbers are documented in the provided source material.