DZ23C27-G3-18

Overview

The DZ23C27-G3-18 is a dual common cathode small signal Zener diode from the Vishay DZ23-G series, housed in an SOT-23 surface-mount package. It provides a nominal Zener voltage of 27 V with a standard tolerance of ±5 %. The device operates at a test current of 2 mA and features a dynamic resistance of 80 Ω at this current level. Maximum power dissipation is rated at 300 mW on an FR-4 board and 500 mW with leads clamped. The component supports an operating temperature range from -55 °C to +150 °C.

Feature Summary

• Dual common cathode configuration integrating two independent Zener elements within a single three-terminal package.
• Compliant with international E24 standard grading for standardized Zener voltage selection.
• Green commercial grade construction utilizing halogen-free materials.

Applications

• Voltage reference circuits requiring dual polarity or split-rail regulation.
• Overvoltage protection stages for sensitive input lines.
• Clamping applications in signal conditioning networks.

Procurement Notes

Verify the specific ordering code suffix against the manufacturer's documentation to confirm reel specifications and minimum order quantities. Confirm RoHS compliance status and material categorization details directly from the official datasheet before finalizing procurement orders.

Selection Notes

Select this component when a dual common cathode topology is required within a compact SOT-23 footprint. Ensure the circuit design accommodates the specified 2 mA test current and 80 Ω dynamic resistance. Verify that the thermal management strategy aligns with the 300 mW dissipation limit on standard FR-4 substrates.

Part Context

This part belongs to the DZ23-G series of silicon planar Zener diodes manufactured by Vishay Semiconductors. The series offers a wide range of Zener voltages from 2.2 V to 75 V, all packaged in the space-efficient SOT-23 format suitable for automated surface-mount assembly processes.

Replacement Considerations

Direct replacements within the same series include other DZ23Cxx-G3-18 variants sharing the identical SOT-23 package and electrical characteristics, differing only in their specific Zener voltage ratings.