ZC933TC

Overview

The ZC933TC is a single varactor diode manufactured by Diodes Incorporated, designed for surface-mount applications in the SOT-23-3 package. It features a maximum peak reverse voltage of 12 V and supports a forward current of 100 mA. The device exhibits a capacitance of 4 pF at 4 V reverse bias and 50 MHz frequency, with a Q value of 300 under identical conditions. This component is classified as obsolete.

Feature Summary

• Single-channel varactor diode configuration
• Surface-mount construction in compact SOT-23-3 package
• Capacitance variation controlled by applied reverse bias voltage

Applications

• RF tuning circuits
• Voltage-controlled oscillator (VCO) designs
• Frequency modulation modules

Procurement Notes

Verify component obsolescence status before integration into new designs. Confirm package compatibility and electrical specifications against current project requirements. Source only from authorized distributors to ensure authenticity. Review datasheet revisions for any parameter updates prior to final validation.

Selection Notes

Evaluate the 12 V reverse voltage limit and 100 mA current rating against circuit demands. Consider the 4 pF baseline capacitance and Q factor for RF performance needs. Assess thermal management within the SOT-23-3 footprint. Compare against active alternatives if long-term supply stability is critical.

Part Context

This component belongs to the discrete semiconductor product category, specifically varactors or variable capacitance diodes. It serves as a voltage-dependent capacitor element within electronic systems. The manufacturer specializes in power management and signal processing components.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.