ZC930TA

Overview

The ZC930TA is a silicon hyperabrupt varactor diode from the ZC930 series, manufactured by Diodes Incorporated. It is designed for frequency control and filtering applications, offering closely controlled capacitance-voltage (C-V) characteristics and high quality factor (Q). The device operates with a maximum reverse voltage of 12 V and features low reverse current leakage, typically 200 pA, to ensure excellent phase noise performance. At a reverse voltage of 4 V and frequency of 50 MHz, the capacitance is 2.9 pF with a minimum Q of 200. It is available in the SOT-23 surface mount package.

Feature Summary

• Octave tuning capability across a 0 to 6V range
• Low reverse current ensures very low phase noise performance
• High Q factor for efficient frequency control
• Close tolerance C-V characteristics

Applications

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

Procurement Notes

Verify the specific ordering suffix against official documentation before procurement. The TA suffix indicates packaging on a 7-inch reel with a quantity of 3,000 units per reel. Confirm that the component meets all required electrical specifications for the target application, particularly regarding capacitance tolerances and Q values at operating frequencies.

Selection Notes

Select this component based on its hyperabrupt junction profile suitable for wide tuning ranges. Ensure the design accommodates the specified power dissipation limits for the SOT-23 package. Verify that the required capacitance values at specific reverse voltages align with the datasheet parameters for optimal circuit performance.

Part Context

The ZC930TA belongs to the ZC930, ZMV930, and ZV931 series of silicon varactor diodes. These devices are engineered for miniature surface mount applications, providing reliable performance in compact electronic designs requiring precise frequency modulation and filtering capabilities.

Replacement Considerations

Check for equivalent part numbers within the same series or from other manufacturers that match the SOT-23 package and electrical specifications. Ensure any substitute maintains similar C-V characteristics and Q factors to preserve circuit performance.