ZMV832ATA

Variable Capacitance (Varicaps, Varactors) Overview

The ZMV832ATA is a silicon hyperabrupt varactor diode from the 830 series, designed for frequency control and filtering applications. It features closely controlled capacitance-voltage characteristics and high Q factors to ensure excellent phase noise performance. The device operates with a nominal capacitance of 22 pF at 2V reverse bias and offers a minimum capacitance ratio of 5.0 between 2V and 20V. It supports a maximum reverse voltage leakage of 20 nA at 20V and maintains an operating temperature range from -55°C to +150°C.

Variable Capacitance (Varicaps, Varactors) Feature Summary

• Hyperabrupt junction design providing steep capacitance-voltage slopes for efficient tuning
• Low reverse current leakage ensuring minimal impact on oscillator phase noise
• High quality factor (Q) maintaining signal integrity in resonant circuits
• Miniature surface mount packaging options for compact board layouts

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 package variant against the datasheet order codes, as the 830 series includes single and dual common cathode formats in SOT23, SOD323, and SOD523 packages. Confirm that the 'TA' suffix corresponds to 7-inch reels or 'TC' for 13-inch reels if reel size is critical for assembly. Ensure compliance with RoHS directives and check for any authorized distributor requirements to guarantee product authenticity.

Variable Capacitance (Varicaps, Varactors) Selection Notes

Select this component when a high tuning ratio and low phase noise are required in VHF to UHF frequency control circuits. Compare the nominal capacitance of 22pF against circuit requirements to determine if other series members like the ZMV831ATA or ZMV833ATA offer better matching. Consider the power dissipation limits of the chosen package, typically 330mW for SOT23/SOD323, during thermal analysis.

Variable Capacitance (Varicaps, Varactors) Part Context

This part belongs to the Zetex 830 series of silicon hyperabrupt varactor diodes. The series provides a range of capacitance values from approximately 8pF to 100pF across different model numbers. These devices are engineered for precision tuning applications where stable capacitance-voltage characteristics are essential for maintaining frequency stability in oscillators and filters.

Variable Capacitance (Varicaps, Varactors) Replacement Considerations

Direct substitutes within the same family include the ZMV832BTA, which shares identical electrical specifications but may differ in binning or tolerance grades. Other series members such as the ZMV831ATA or ZMV833ATA can be considered if capacitance adjustments are permissible. Verify pinout compatibility and package dimensions before substituting.