MV104

Overview

The MV104 is a dual voltage variable capacitance diode manufactured by onsemi, designed for FM tuning and general frequency control applications. It features two monolithic diodes in a single package to ensure near-perfect matching with a guaranteed tolerance of ±1.0% over the specified tuning range. The device operates within a reverse voltage limit of 32 Vdc and provides a typical figure of merit (Q) of 140 at 3.0 Vdc and 100 MHz. Capacitance ranges from 37 pF to 42 pF at 3.0 Vdc reverse bias. It is housed in a TO-92 (TO-226AA) package.

Feature Summary

• Dual diode configuration integrated into a single monolithic chip for space savings
• Guaranteed tight capacitance matching between diodes across the tuning range
• Optimized for back-to-back configurations to minimize signal distortion

Applications

• FM radio tuning circuits
• General frequency control systems
• Top-of-the-line applications requiring low signal distortion

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm that the ordering suffix matches the specific package style required. Ensure compliance with RoHS directives if applicable to the target market. Validate datasheet revisions against current production versions before finalizing procurement specifications.

Selection Notes

Select this component when precise capacitance matching between two varactors is critical for circuit performance. The dual configuration reduces board space compared to discrete solutions. Verify that the operating frequency and reverse voltage requirements align with the specified electrical characteristics for optimal Q factor and capacitance ratio.

Part Context

This component belongs to the family of silicon tuning diodes used in RF and microwave applications. It serves as a specialized voltage-controlled capacitor variant optimized for high-Q performance. The dual-diode architecture distinguishes it from standard single-varactor devices by providing inherent symmetry for balanced circuit designs.

Replacement Considerations

Check for equivalent dual varactor diodes with similar capacitance ratios and Q factors. Verify pinout compatibility for TO-92 packages. Ensure replacement parts meet the same maximum ratings for reverse voltage and power dissipation.