ZC934TC

Overview

The ZC934TC is a single-channel hyperabrupt junction varactor diode manufactured by Diodes Incorporated. Designed for very high frequency applications, it utilizes silicon technology and features a surface-mount SOT-23-3 (TO-236-3) package. The device specifies a maximum peak reverse voltage of 12 V and offers a capacitance of 52.5 pF at zero bias. It maintains a Q value of 80 at 4 V and 50 MHz, supporting operation within a temperature range of -55°C to +150°C.

Feature Summary

• Hyperabrupt junction profile for enhanced tuning linearity
• Surface-mount construction in compact SOT-23-3 package
• Silicon-based design optimized for very high frequency circuits

Applications

• Voltage-controlled oscillator (VCO) tuning
• Frequency synthesizer phase-locked loops
• RF filter tuning networks

Procurement Notes

Verify component authenticity through authorized channels due to discontinuation status. Confirm RoHS3 compliance and REACH SVHC declarations prior to integration. Validate package marking against official datasheet specifications to prevent counterfeit substitution during procurement.

Selection Notes

Evaluate the 52.5 pF zero-bias capacitance and 12 V reverse voltage limits against circuit requirements. Consider the Q factor at operating frequencies for efficiency. Ensure thermal management supports the 150°C maximum junction temperature rating in the target application environment.

Part Context

This component belongs to the discrete semiconductor varactor diode category from Diodes Incorporated. It serves as a voltage-variable capacitor for RF signal processing. The part represents a specialized passive-active hybrid element used in high-frequency communication systems requiring precise frequency control.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with equivalent hyperabrupt varactors having matching C-V characteristics and package dimensions.