ZMV831ATC

Variable Capacitance (Varicaps, Varactors) Overview

The ZMV831ATC is a silicon hyperabrupt varactor diode from the 830 series, manufactured by Diodes Incorporated (formerly Zetex). It features closely controlled capacitance-voltage characteristics and high Q for frequency control applications. The device operates in a SOT-23 surface mount package with a maximum reverse voltage of 25V. Key electrical parameters include a nominal capacitance of 15.0pF at 2V/1MHz, a minimum Q of 300 at 3V/50MHz, and a capacitance ratio (C2/C20) ranging from 4.5 to 6.0.

Variable Capacitance (Varicaps, Varactors) Feature Summary

• Hyperabrupt CV characteristics providing high tuning ratios
• Low reverse leakage current ensuring excellent phase noise performance
• High Q factor suitable for precision frequency control

Variable Capacitance (Varicaps, Varactors) Applications

• Voltage Controlled Crystal Oscillators (VCXO)
• Temperature Compensated Crystal Oscillators (TCXO)
• Wireless communications systems
• Mobile radio equipment

Variable Capacitance (Varicaps, Varactors) Procurement Notes

Verify the specific ordering suffix 'TC' indicates 13-inch reel packaging containing 10,000 units per reel, distinct from the standard 'TA' 7-inch configuration. Confirm component authenticity through authorized distribution channels to ensure compliance with quality standards and avoid unauthorized sources.

Variable Capacitance (Varicaps, Varactors) Selection Notes

Select this component when steep capacitance-voltage slopes are required for wide tuning ranges. Compare against the 12V hyperabrupt range if lower voltage operation is necessary. Ensure the SOT-23 package dimensions and thermal dissipation limits align with the target circuit board layout and operating temperature requirements.

Variable Capacitance (Varicaps, Varactors) Part Context

This part belongs to the 830 series of silicon hyperabrupt varactor diodes originally produced by Zetex Semiconductors plc before acquisition by Diodes Incorporated. The series includes variants like ZC831ATA and ZMV831ATA, offering different packaging options such as SOT-23, SOD-323, and SOD-523 for miniature surface mount applications.

Variable Capacitance (Varicaps, Varactors) Replacement Considerations

Direct substitutes within the same family include ZMV831ATA (SOT-23, 7-inch reel) or ZMV831BTA (tighter tolerance). For alternative packages, verify pinout compatibility with ZMV831ATC in SOD-323 or SOD-523 formats.