KVX2122-23-0

Overview

The KVX2122-23-0 is a single varactor diode manufactured by Microchip Technology, designed for surface-mount applications in the SOT-23-3 package. It features a maximum peak reverse voltage of 22 V and operates within a temperature range of -55°C to +125°C. Key electrical parameters include a capacitance of 6.8 pF at 0 V measured at 1 MHz and a quality factor of 1200 at 4 V and 50 MHz. The component is classified as a general-purpose varactor diode suitable for high-frequency tuning circuits.

Feature Summary

• Single-channel varactor configuration optimized for compact surface-mount layouts
• High quality factor performance supporting efficient signal tuning at radio frequencies
• Extended industrial operating temperature range ensuring reliability in harsh environments

Applications

• RF filter tuning circuits
• Voltage-controlled oscillator (VCO) frequency adjustment
• Phase-locked loop (PLL) synthesizer components

Procurement Notes

Verify the specific suffix and packaging type against the manufacturer's current datasheet before ordering. Confirm availability status directly with authorized distributors as stock levels fluctuate. Ensure the requested quantity meets the minimum order requirements specified by the supplier. Cross-reference the full part number to avoid confusion with similar variants in the KVX series.

Selection Notes

Select this component when a single varactor with moderate capacitance and high Q-factor is required. Compare the 6.8 pF zero-bias capacitance against circuit design specifications. Verify that the 22 V reverse voltage rating exceeds the maximum expected bias voltage. Ensure the SOT-23-3 footprint matches the PCB layout constraints.

Part Context

This device belongs to the Microchip KVX series of silicon varactor diodes. These components are engineered for RF and microwave applications requiring precise capacitance control via voltage. The series offers various capacitance values and Q-factors to suit different frequency bands and circuit topologies.

Replacement Considerations

Check for direct substitutes within the KVX series such as KVX2121 or KVX2123 if capacitance tolerances allow. Verify pinout compatibility and package dimensions before substituting with other manufacturers' varactors.