DZ23C3V9-HE3-08

Overview

The DZ23C3V9-HE3-08 is a silicon planar Zener diode from the Vishay DZ23 series, housed in an SOT-23 surface-mount package. It features a nominal Zener voltage of 3.9 V with a ±5% tolerance and operates at a test current of 5 mA. The device has a maximum reverse leakage current of 3 µA at 4.1 V and a dynamic resistance of 90 Ω at 1 kHz. Rated for AEC-Q101 automotive qualification, it supports junction temperatures up to 150 °C and offers ESD protection exceeding 8 kV (HBM) and 800 V (MM).

Feature Summary

• AEC-Q101 qualified for automotive reliability standards.
• High electrostatic discharge robustness exceeding 8 kV human body model.
• RoHS-compliant construction utilizing lead-free technology.

Applications

• Voltage reference circuits requiring stable low-voltage regulation.
• Protection stages against electrostatic discharge events.
• Clamping applications within automotive electronic modules.

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm that the ordering suffix matches the required automotive grade and tape-and-reel specifications. Ensure compliance with RoHS directives and check for any recent product change notices affecting availability or material composition before finalizing procurement orders.

Selection Notes

Select this component when a precise 3.9 V reference is needed in a compact SOT-23 footprint. Verify that the operating current aligns with the specified 5 mA test condition. Consider the thermal resistance characteristics if power dissipation exceeds standard limits. Validate that the temperature coefficient meets the specific circuit requirements for the intended ambient range.

Part Context

This part belongs to the DZ23 series of small signal Zener diodes manufactured by Vishay General Semiconductor - Diodes Division. The series provides a wide range of graded voltages according to the E24 standard. The HE3_A suffix indicates AEC-Q101 qualification, distinguishing it from commercial grade variants while maintaining identical electrical performance parameters.

Replacement Considerations

Direct replacements include other DZ23 series parts with matching voltage ratings. Cross-manufacturer equivalents must be verified for pinout compatibility and thermal characteristics. Ensure substitute components meet the same AEC-Q101 qualification standards if automotive application integrity is required.