ZMDC831BTA

Overview

The ZMDC831BTA is a dual varactor diode manufactured by Diodes Incorporated, housed in an SOT-323 surface-mount package. It features two independent varactor sections within a single component. The device supports a peak reverse voltage of 25 V and operates across a junction temperature range of -55°C to +150°C. Key electrical characteristics include a capacitance of 15.75 pF at 2 V and 1 MHz, with a Q factor of 300 at 3 V and 50 MHz. The unit offers a capacitance ratio of 6.0 under C2/C20 conditions.

Feature Summary

• Dual varactor configuration providing two independent tuning elements in one compact package
• High quality factor (Q) suitable for RF applications requiring low loss
• Wide operating temperature range supporting demanding environmental conditions

Applications

• RF tuning circuits
• Voltage-controlled oscillators (VCOs)
• Frequency synthesizers

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when ordering. Confirm RoHS compliance status as per current manufacturer documentation. Check for obsolescence notices or product change notifications before finalizing procurement plans.

Selection Notes

Select this component for designs requiring dual varactors in limited space. Ensure the 25 V reverse voltage rating exceeds the maximum expected bias voltage. Verify that the 15.75 pF initial capacitance fits the target frequency range requirements.

Part Context

This part belongs to the 830 Series of varactor diodes from Diodes Incorporated. It serves as a dual-section variant of the single-section ZC831B series, offering similar electrical performance in a dual-channel format.

Replacement Considerations

The ZMMDC832BTA is a documented similar level replacement with the same pinout and package. Verify compatibility if substituting, as it may offer different capacitance characteristics.