KVX38S2-23-0

Overview

The KVX38S2-23-0 is a silicon tuning varactor diode manufactured by Microchip Technology, designed for voltage-controlled capacitance applications. It features a non-hermetic plastic surface-mount package, specifically SOT-23-3, suitable for compact electronic designs. The device operates with a maximum reverse voltage of 27V and is supplied in reel packaging with a factory pack quantity of 500 units. This component serves as a standalone variable capacitance element within RF circuits.

Feature Summary

• Silicon-based construction for reliable voltage-controlled capacitance performance
• Non-hermetic plastic surface-mount design for simplified assembly
• Standalone varactor structure optimized for RF tuning environments

Applications

• RF tuning circuits requiring variable capacitance control
• Voltage-controlled oscillator (VCO) frequency adjustment
• Phase-locked loop (PLL) filter networks

Procurement Notes

Verify the specific suffix designation when ordering, as the base part number may correspond to different packaging configurations such as tape and reel versus bulk. Confirm that the 27V rating aligns with your circuit's maximum reverse bias requirements. Ensure the SOT-23-3 footprint matches your PCB layout constraints. Cross-reference the manufacturer datasheet for detailed electrical characteristics before finalizing the bill of materials.

Selection Notes

Select this component when a small-footprint, silicon varactor is required for RF signal processing. The 27V breakdown voltage provides adequate headroom for many low-power RF applications. Consider the non-hermetic nature of the package for environmental protection needs. Evaluate the capacitance-voltage curve against your tuning range specifications to ensure proper linearity and coverage in your design.

Part Context

This part belongs to Microchip Technology's family of variable capacitance diodes, commonly referred to as varactors or varicaps. These components are essential for creating tunable filters, oscillators, and impedance matching networks in radio frequency systems. The KVX series represents silicon-based solutions offering consistent performance for general-purpose RF tuning tasks.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative varactors based on capacitance range, Q-factor, and package dimensions if sourcing changes are necessary.