DZ23C51-HE3-08

Overview

The DZ23C51-HE3-08 is a dual common cathode silicon planar Zener diode array from the Vishay DZ23 series, housed in an SOT-23 surface-mount package. It provides two independent Zener elements with a nominal breakdown voltage of 51 V and a standard tolerance of ±5 %. The device operates within a junction temperature range of -55 °C to +150 °C and supports a maximum power dissipation of 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 μA at 38 V and a dynamic resistance of 100 Ω at the test current of 2 mA.

Feature Summary

• Dual common cathode configuration integrating two independent Zener elements into a single compact footprint
• ESD protection capability exceeding 8 kV via human body model and 800 V via machine model testing
• RoHS-compliant construction utilizing silicon planar technology for stable voltage regulation

Applications

• Voltage reference circuits requiring dual regulated rails
• Transient voltage suppression in low-power signal lines
• Clamping applications for protecting sensitive semiconductor inputs

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm tape-and-reel specifications and minimum order quantities. Ensure that the procurement channel sources directly from authorized distributors to guarantee component authenticity and traceability throughout the supply chain.

Selection Notes

Select this component when a dual Zener solution is required in a space-constrained SOT-23 package. Confirm that the 51 V nominal voltage aligns with circuit requirements and verify that the ±5 % tolerance meets the design specifications for the intended application environment.

Part Context

This part belongs to the Vishay DZ23 series of small signal Zener diodes. The series offers a wide range of standardized voltages graded according to the E24 standard. The HE3_A suffix indicates AEC-Q101 qualification for automotive reliability standards, while the base E3 designation confirms RoHS compliance for commercial electronics manufacturing.

Replacement Considerations

Cross-reference alternative dual Zener arrays in the SOT-23 package with matching 51 V nominal voltage and ±5 % tolerance. Verify that substitute components meet the same thermal resistance and power dissipation ratings to ensure compatibility with existing PCB layouts.