GCX1208-23-4/TR

Overview

The GCX1208-23-4/TR is a dual common cathode varactor diode manufactured by Microchip Technology. It features a surface-mount SOT-23-3 package and operates within a temperature range of -55°C to +125°C. The device has a reverse voltage rating of 30V and a capacitance of 3.9 pF. It exhibits a minimum tuning ratio of 3.9 under specified test conditions.

Feature Summary

• Dual common cathode configuration for compact circuit design
• Non-hermetic plastic surface mount construction
• Wide operating temperature capability for harsh environments

Applications

• Voltage-controlled oscillator (VCO) circuits
• Frequency modulation applications
• RF tuning networks

Procurement Notes

Verify the specific suffix /TR indicates cut tape packaging when sourcing. Confirm the component meets RoHS standards if required by your assembly process. Ensure the SOT-23-3 footprint matches your PCB layout constraints. Cross-reference the datasheet for precise electrical tolerances before finalizing the bill of materials.

Selection Notes

Select this component for designs requiring dual varactors in a minimal footprint. The 30V reverse voltage rating suits moderate RF biasing needs. Consider the 3.9 pF capacitance value for target frequency ranges. Evaluate the tuning ratio performance against circuit linearity requirements.

Part Context

This part belongs to Microchip's GCX series of variable capacitance diodes. These components are designed for RF and microwave applications where voltage-dependent capacitance is essential. The series offers various configurations including single and dual units in small packages.

Replacement Considerations

Direct substitutes include other dual common cathode varactors with similar SOT-23-3 footprints and comparable 30V ratings. Verify capacitance values and tuning ratios match the original design specifications before swapping.