ZMDC832TA

Overview

The ZMDC832TA is a dual varactor diode manufactured by Diodes Incorporated, designed for surface-mount applications in the SOT-323 package. It features a common cathode configuration with a maximum peak reverse voltage of 25 V. The device exhibits a capacitance of 24.2 pF at 2 V and 1 MHz, achieving a Q value of 200 at 3 V and 50 MHz. It offers a capacitance ratio of 6.5 under C2/C20 conditions. Operating temperatures range from -55°C to +150°C junction temperature. The component is RoHS3 compliant and classified as end-of-life.

Feature Summary

• Dual varactor structure with common cathode arrangement
• High quality factor performance at radio frequencies
• Wide thermal operating range suitable for demanding environments

Applications

• RF tuning circuits requiring variable capacitance
• Voltage-controlled oscillators (VCOs)
• Frequency modulation modules

Procurement Notes

Verify component status carefully as this part is designated as end-of-life by the manufacturer. Confirm availability through authorized distributors or secondary markets. Ensure compliance with RoHS3 standards if required for specific regulatory frameworks. Check lead times and minimum order quantities with suppliers directly.

Selection Notes

Select this component when a compact dual varactor solution is needed for RF applications. The SOT-323 package suits space-constrained designs. Verify that the 25 V reverse voltage rating meets circuit requirements. Consider the 24.2 pF baseline capacitance and 6.5 ratio for tuning range needs.

Part Context

This component belongs to the 830 Series of varactor diodes from Diodes Incorporated. It serves as a semiconductor capacitor element where capacitance varies with applied reverse bias voltage. The series targets high-frequency signal processing tasks within portable and industrial electronics.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative dual varactor diodes in SOT-323 packages with similar electrical characteristics such as 25 V rating and comparable capacitance ratios.