ZV952V2TA

Overview

The ZV952V2TA is a silicon hyperabrupt varactor diode from the 950 series, designed for frequency control and filtering applications. It features closely controlled capacitance-voltage characteristics, low voltage operation, and high Q factors. The device operates with control voltages ranging from 0.5V to 2.5V, making it suitable for 3-volt systems. Key electrical parameters include a reverse breakdown voltage of 12V, a typical reverse leakage current of 10pA at 8V, and a power dissipation of 250mW in the SOD523 package. Capacitance values are specified as 19pF at 0.5V and 12.7pF at 1.5V (f=1MHz), with a minimum Q of 250 at 50MHz.

Feature Summary

• Low reverse leakage current ensures very low phase noise performance
• High Q factor maintained at low operating voltages
• Miniature surface mount packages available for compact designs

Applications

• VCXO and TCXO circuits
• Wireless communications systems
• Digital Radio receivers

Procurement Notes

Verify the specific ordering suffix TA indicates tape and reel packaging containing 3000 units per 7-inch reel. Confirm the manufacturer origin, as the datasheet references Zetex plc while Diodes Incorporated is listed as the brand. Ensure the component matches the SOD523 package dimensions provided in the official documentation before procurement.

Selection Notes

Select this component when designing frequency control circuits requiring tight capacitance tolerance and low phase noise. The 19pF nominal capacitance at 0.5V distinguishes it from the ZV950V2TA (9.5pF) and ZV953V2TA (45pF). Ensure the application voltage stays within the 0.5V to 2.5V range to optimize tuning characteristics and maintain the specified high Q performance.

Part Context

The ZV952V2TA belongs to the 950 series of silicon low voltage hyperabrupt varactor diodes. This series includes variants like ZV950V2, ZV953V2, and the dual ZMDC953. The part is manufactured by Zetex plc, which was acquired by Diodes Incorporated. The 'TA' suffix denotes the standard tape and reel packaging format used for automated assembly.

Replacement Considerations

Direct replacements within the same family include ZV950V2TA and ZV953V2TA, though their capacitance values differ significantly. For dual-channel requirements, ZMDC953TA is an alternative. Verify that any substitute maintains the required 12V reverse breakdown voltage and SOD523 footprint compatibility.