DZ23C43-HE3-18

Overview

The DZ23C43-HE3-18 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 43 V with a tolerance of ±5 %. The device operates within a junction temperature range of -55 °C to +150 °C and dissipates up to 500 mW when mounted on a lead frame, or 300 mW on an FR-4 board. Electrical characteristics include a reverse leakage current of 50 nA maximum at 32 V and a dynamic resistance of 97 Ω at a test current of 2 mA.

Feature Summary

• Silicon planar construction for reliable voltage regulation
• ESD protection capability exceeding 8 kV via human body model
• RoHS-compliant commercial grade material categorization

Applications

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

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm that the ordering suffix matches the required reel size and tape specifications. Ensure compliance with RoHS directives and material categorization standards before integration into production workflows.

Selection Notes

Select this component when a 43 V Zener voltage is required in a compact SOT-23 footprint. Evaluate thermal management requirements based on the specific PCB copper area available for heat dissipation. Verify that the operating environment remains within the specified temperature limits.

Part Context

This part belongs to the DZ23 series of small signal Zener diodes manufactured by Vishay General Semiconductor - Diodes Division. The series offers a wide range of graded voltages according to the E24 standard, providing designers with standardized options for various circuit protection and reference needs.

Replacement Considerations

Substitutes must match the 43 V nominal voltage, ±5 % tolerance, and SOT-23 package dimensions. Verify equivalent power dissipation ratings and dynamic resistance values to ensure circuit performance stability under load variations.