ZMV930TC

Overview

The ZMV930TC is a silicon hyperabrupt varactor diode from the ZC930, ZMV930, and ZV931 series manufactured by Diodes Incorporated. It provides closely controlled capacitance-voltage characteristics with a minimum Q of 200 at 4V reverse bias and 50MHz frequency. Capacitance values range from 8.70pF to 2.90pF across a reverse voltage span of 1V to 4V. The device supports octave tuning from 0 to 6V and features low reverse current leakage, typically 200pA, ensuring excellent phase noise performance. It is available in miniature surface mount packages including SOT-23, SOD-323, and SOD-523.

Feature Summary

• Octave tuning capability from 0 to 6V
• Low reverse current for very low phase noise performance
• High Q factor with closely controlled C-V characteristics

Applications

• VCXO and TCXO
• Wireless communications
• Pagers
• Mobile radio

Procurement Notes

Verify the specific package variant (SOT-23, SOD-323, or SOD-523) when ordering, as the base model number covers multiple physical footprints. Confirm the suffix TA for 7-inch reels or TC for 13-inch reels based on production requirements. Ensure compliance with RoHS3 standards if applicable to your manufacturing process. Cross-reference datasheet revision dates to confirm electrical tolerances match your design specifications.

Selection Notes

Select the ZMV930TC over other series members like ZC930 or ZV931 primarily based on required packaging density and thermal dissipation limits. The SOD-523 offers the smallest footprint but has lower power dissipation compared to SOT-23. Verify that the operating temperature range aligns with the specified -55°C to +125°C limits. Consider the specific capacitance tolerance requirements for your frequency control circuit before finalizing the component choice.

Part Context

This component belongs to the ZC930, ZMV930, and ZV931 series of silicon 12V hyperabrupt varactor diodes originally developed by Zetex Semiconductors plc. The product line was acquired by Diodes Incorporated, which continues to manufacture and distribute these devices under its brand. The series is designed for high-frequency applications requiring stable capacitance variation with applied voltage.

Replacement Considerations

Direct substitutes within the same family include ZC930TA/ZMV930TA and ZV931V2TA variants, provided the package type matches. Other series members such as ZC931, ZC932, or ZC933 offer different capacitance ranges and Q factors. Verify pinout compatibility and absolute maximum ratings before substituting any alternative part numbers.

FAQ

What is the typical reverse current leakage for this varactor?

The typical reverse current leakage is 200pA, which contributes to low phase noise performance.

Does the ZMV930TC support octave tuning?

Yes, the device supports octave tuning from 0 to 6V.

What are the available package options for this component?

The component is available in SOT-23, SOD-323, and SOD-523 miniature surface mount packages.