DZ23C33-HE3_A-18

Overview

The DZ23C33-HE3_A-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 33 V with a tolerance of ±5 %. The device operates at a test current of 2 mA and dissipates up to 300 mW on an FR-4 board. It features a maximum dynamic resistance of 80 Ω and a reverse leakage current of 50 μA at 25 V. Qualified under AEC-Q101 standards, it supports an operating temperature range from -55 °C to +150 °C.

Feature Summary

• AEC-Q101 qualified for automotive reliability requirements
• ESD protection exceeding 8 kV via human body model and 800 V via machine model
• RoHS-compliant HE3_A material categorization

Applications

• Automotive electronic circuits requiring robust voltage regulation
• General-purpose voltage reference applications
• Protection against electrostatic discharge events

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer's document number 86346 and revision 1.2. Confirm that the ordering suffix indicates AEC-Q101 qualification and RoHS compliance. Ensure the specific part matches the required voltage grading and packaging specifications before finalizing procurement.

Selection Notes

Select this component when a stable 33 V reference is needed within a compact SOT-23 footprint. The AEC-Q101 qualification makes it suitable for automotive environments where high thermal stability and ESD resilience are mandatory. Verify that the 300 mW power dissipation rating aligns with the thermal design of the target circuit board.

Part Context

This device belongs to the DZ23 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series offers a wide range of standard Zener voltages graded according to the international E24 standard. The HE3_A suffix specifically denotes the AEC-Q101 qualified variant packaged in tape and reel format for automated assembly.

Replacement Considerations

Direct replacements must match the 33 V nominal voltage, SOT-23 package, and AEC-Q101 qualification. Verify that alternative components meet the same 300 mW power dissipation and dynamic resistance specifications to ensure circuit compatibility.