ZMV933ATC

Overview

The ZMV933ATC is a silicon hyperabrupt varactor diode designed for frequency control and filtering applications. It features closely controlled capacitance-voltage characteristics, octave tuning from 0 to 6V, and low reverse current typically at 200pA. The device ensures excellent phase noise performance and high Q factor. Electrical specifications include a maximum reverse voltage of 12V and a maximum power dissipation of 250mW in the SOD-523 package. Capacitance values range from 42.00pF at 1V reverse bias down to 12.00pF at 4V reverse bias.

Feature Summary

• Octave tuning capability across a 0 to 6V voltage range
• Low reverse leakage current ensuring very low phase noise performance
• High quality factor (Q) with closely controlled C-V characteristics

Applications

• VCXO and TCXO circuits
• Wireless communications systems
• Mobile radio equipment

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packaging details. The 'TC' suffix indicates a 13-inch reel containing 10,000 units per reel, while the 'TA' suffix denotes a 7-inch reel with 3,000 units. Confirm that the component matches the required surface mount package type before procurement.

Selection Notes

Select this component based on its hyperabrupt junction profile suitable for wide tuning ranges. Ensure the application requires the specified 12V breakdown voltage and 250mW power dissipation limit for the SOD-523 package. Verify that the capacitance tolerance and Q factor meet the specific phase noise requirements of the target circuit design.

Part Context

This part belongs to the Zetex Semiconductors ZC930, ZMV930, and ZV931 series of silicon 12V hyperabrupt varactor diodes. The series offers single or dual common cathode formats in miniature surface mount packages including SOT-23, SOD-323, and SOD-523. The ZMV933ATC specifically utilizes the SOD-523 package format.

Replacement Considerations

Cross-reference with other parts from the ZC930, ZMV930, and ZV931 series if different packaging is required. Verify equivalent electrical parameters such as capacitance ratios and Q factors when considering alternative manufacturers.