DZ23C8V2-HE3_A-18

Overview

The DZ23C8V2-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 8.2 V with a tolerance of ±5%. The device operates at a test current of 5 mA and features a maximum reverse leakage current of 0.1 µA at 6.9 V. Dynamic resistance is specified at 7 Ω, with a temperature coefficient ranging from 4 to 7 x 10⁻⁴/°C. Qualified under AEC-Q101 standards, 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 requirements.
• High electrostatic discharge (ESD) capability per AEC-Q101 standards.
• RoHS-compliant construction utilizing lead-free soldering materials.

Applications

• Voltage reference circuits requiring stable bias points.
• Overvoltage protection stages in automotive electronic modules.
• Clamping applications within general-purpose signal processing paths.

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer's part number against official Vishay documentation. Confirm that the ordering suffix matches the required tape-and-reel packaging format. Ensure compliance with RoHS directives and AEC-Q101 qualification status before finalizing procurement orders.

Selection Notes

Select this component when a precise 8.2 V regulation point is required in space-constrained designs. The SOT-23 footprint allows for automated surface-mount assembly. Verify that the operating current remains near the 5 mA test condition to maintain the specified voltage tolerance and dynamic resistance characteristics.

Part Context

This device belongs to the DZ23 series of small-signal Zener diodes manufactured by Vishay Semiconductors. The series covers a wide voltage range from 2.2 V to 75 V, all graded according to the international E24 standard. The HE3_A suffix specifically denotes the AEC-Q101 qualified variant packaged in 13-inch reels.

Replacement Considerations

Direct replacements must match the 8.2 V nominal voltage, ±5% tolerance, and SOT-23 package. Verify that any substitute component also holds AEC-Q101 qualification if automotive reliability is required. Check thermal resistance and power dissipation limits to ensure compatibility with existing board layouts.

FAQ

What is the specific ESD protection rating for this component?

The device meets AEC-Q101 ESD capability standards, offering protection greater than 8 kV via the human body model and greater than 800 V via the machine model.

How does the temperature coefficient vary for the 8.2 V Zener voltage?

For the DZ23C8V2 variant, the temperature coefficient ranges from a minimum of 4 x 10⁻⁴/°C to a maximum of 7 x 10⁻⁴/°C at the test current of 5 mA.

Is this component suitable for high-power dissipation applications?

No, the DZ23C8V2-HE3_A-18 is designed for low-power applications with a maximum power dissipation of 500 mW on a heatsink or 300 mW on an FR-4 board.