DZ23C43HE3-TP

Overview

The DZ23C43HE3-TP is a dual Zener diode in a common cathode configuration, housed in an SOT-23 package. It provides a nominal Zener voltage of 43V with a tolerance range of 40.85V to 45.15V at a test current of 5.0mA. The device features a maximum Zener impedance of 100Ω and a maximum reverse leakage current of 0.1µA at 32V. Rated for 300mW power dissipation, it operates within a junction temperature range of -55°C to +150°C and has a thermal resistance of 417°C/W.

Feature Summary

• Dual Zener diodes integrated in a single common cathode case
• Tight voltage matching with delta V-Z difference less than or equal to 5%
• Qualified for automotive applications under AEC-Q101 standards
• Halogen-free construction with UL 94 V-0 flammability rating

Applications

• Automotive electronic circuits requiring matched voltage references
• Surge protection for sensitive signal lines
• Voltage clamping in high-density surface mount designs

Procurement Notes

Verify authenticity by purchasing only from Micro Commercial Components directly or their authorized distributors. Counterfeit components pose significant risks; MCC does not provide warranty coverage for parts acquired through unauthorized sources. Ensure the ordering suffix indicates RoHS compliance and tape-and-reel packaging quantity.

Selection Notes

Select this component when a matched pair of Zener diodes is required in a compact footprint. The 43V nominal voltage suits specific reference needs, while the low leakage current ensures minimal impact on high-impedance circuits. Confirm that the 300mW power rating aligns with the expected thermal environment and derating requirements.

Part Context

This part belongs to the DZ23C series, which covers Zener voltages from 2.4V to 47V. All variants share the same SOT-23 package and electrical characteristics structure, differing primarily in breakdown voltage and corresponding marking codes. The HE3 designation indicates Halogen-free and RoHS-compliant epoxy materials.

Replacement Considerations

Direct substitutes include other DZ23C43HE3-TP units from MCC. Cross-manufacturer replacements must match the 43V nominal voltage, SOT-23-3 package, and common cathode configuration. Verify that alternative parts meet the same AEC-Q101 qualification if automotive reliability is required.