DZ23C20-E3-18

Overview

The DZ23C20-E3-18 is a silicon planar Zener diode from the Vishay DZ23 series, housed in an SOT-23 surface-mount package. It provides a nominal Zener voltage of 20 V with a standard tolerance of ±5 %. The device operates at a test current of 5 mA and features a maximum reverse leakage current of 0.05 µA at 15 V. Dynamic resistance is specified at 50 Ω (at IZT1) and 220 Ω (at IZT2). It supports a power dissipation of up to 500 mW and functions within a temperature range of -55 °C to +150 °C.

Feature Summary

• Dual common cathode configuration for space-efficient circuit designs
• ESD protection capability exceeding 8 kV via human body model
• RoHS-compliant commercial grade construction

Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection stages in signal conditioning paths
• Clamping applications in low-power electronic systems

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number against official Vishay documentation. Confirm that the ordering suffix matches the required reel quantity and tape specifications. Ensure compliance with RoHS directives and material categorization standards before finalizing procurement orders.

Selection Notes

Select this component when a precise 20 V regulation point is required in a compact SOT-23 footprint. Consider the ±5 % tolerance and dynamic resistance values for accuracy requirements. Evaluate thermal management needs based on the 500 mW dissipation limit and ambient operating conditions.

Part Context

This device belongs to the DZ23 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series covers a wide voltage range from 2.2 V to 75 V, utilizing standardized E24 grading. The specific part represents a single unit within a dual common cathode package arrangement.

Replacement Considerations

Direct substitutes include other DZ23 series variants with identical packaging and electrical characteristics. Verify pinout compatibility and thermal resistance parameters when considering alternative manufacturers or upgraded AEC-Q101 qualified versions.