SMV1145-079LF

Overview

The SMV1145-079LF is a single varactor diode manufactured by Skyworks Solutions Inc., designed for surface-mount applications in the SC-79 package. It features a maximum peak reverse voltage of 12 V and an inductance of 0.7 nH. The device exhibits a capacitance of 3.6 pF at 1 V and 1 MHz, with a capacitance ratio of 2.8 under C1/C9 conditions. Operating junction temperature ranges from -55°C to 125°C. This component is classified as obsolete and subject to discontinuation.

Feature Summary

• Single-channel varactor diode configuration optimized for RF tuning circuits
• Low parasitic inductance design supporting high-frequency signal integrity
• Surface-mount construction compatible with automated assembly processes

Applications

• RF filter tuning networks
• Voltage-controlled oscillator (VCO) frequency adjustment
• Phase-locked loop (PLL) circuit implementations

Procurement Notes

This component is officially designated as obsolete by the manufacturer. Discontinuation notifications indicate end-of-life status. Verify current availability through authorized distributors while acknowledging potential supply constraints. Confirm RoHS compliance details prior to integration. Check specific datasheet revisions for final electrical parameter validation before production use.

Selection Notes

Select this part only if the 12 V reverse voltage rating and 0.7 nH inductance align with circuit requirements. The SC-79 package limits board space utilization compared to smaller alternatives. Consider the obsolete status when planning long-term product lifecycles. Evaluate thermal performance within the specified -55°C to 125°C junction temperature range for environmental compatibility.

Part Context

The SMV1145-079LF belongs to Skyworks' SMV series of varactor diodes, which are silicon-based semiconductor devices used for variable capacitance control. These components typically serve as voltage-dependent capacitors in microwave and RF systems. The series emphasizes low-loss performance and consistent tuning characteristics across operating frequencies.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.