ZMV932TA

Overview

The ZMV932TA is a silicon hyperabrupt varactor diode manufactured by Diodes Incorporated, designed for frequency control and filtering applications. It features closely controlled capacitance-voltage (C-V) characteristics and high quality factor (Q). The device operates with a maximum reverse voltage of 12 V and supports octave tuning from 0 to 6 V. Electrical specifications include a typical reverse current of 200 pA and a temperature coefficient of capacitance ranging from 300 to 400 ppm/°C at 3 V and 1 MHz. Capacitance values vary between 5.50 pF and 17.00 pF depending on the applied reverse bias voltage.

Feature Summary

• Octave tuning capability across a wide voltage range
• Low reverse leakage current ensuring minimal phase noise
• High Q factor for efficient signal processing

Applications

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

Procurement Notes

Verify the specific package variant required, as the series includes SOT-23, SOD-323, and SOD-523 options. Confirm that the ordering suffix matches the desired reel size, typically TA for 7-inch reels containing 3,000 units. Ensure compliance with RoHS directives if applicable to the manufacturing batch. Cross-reference the part marking code to distinguish between similar family members like ZC932TA or ZV932V2TA.

Selection Notes

Select this component based on the required capacitance ratio and Q factor at the operating frequency. Verify that the maximum reverse voltage rating of 12 V accommodates the circuit's peak reverse bias conditions. Consider the thermal dissipation limits, which are specified as 330 mW for SOT-23 and SOD-323 packages. Ensure the chosen package fits the available PCB footprint constraints.

Part Context

This component belongs to the ZC930, ZMV930, and ZV931 series of silicon 12V hyperabrupt varactor diodes. The series offers various capacitance ranges and packaging formats to suit different design requirements. The ZMV932TA specifically denotes the SOD-323 surface mount package variant within this product line.

Replacement Considerations

Direct substitutes within the same series include ZC932TA (SOT-23 package) and ZV932V2TA (SOD-523 package). These alternatives share identical electrical characteristics but differ in physical dimensions and mounting style. Verify pinout compatibility and thermal performance before substitution.