DZ23C7V5-HE3_A-08

Overview

The DZ23C7V5-HE3_A-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 7.5 V with a standard tolerance of ±5 %. The device operates at a test current of 5 mA and exhibits a maximum reverse leakage current of 1 μA at 5 V. Dynamic resistance is specified at 7 Ω, while the temperature coefficient ranges between 3 and 7 x 10⁻⁴/°C. Qualified under AEC-Q101 standards, it supports an operating temperature range from -55 °C to +150 °C.

Feature Summary

• Dual-element common cathode configuration within a compact SOT-23 footprint
• AEC-Q101 automotive qualification ensuring high reliability
• ESD protection exceeding 8 kV via human body model and 800 V via machine model

Applications

• Voltage reference circuits requiring stable potential
• Overvoltage protection for sensitive electronic components
• Clamping applications in automotive-grade systems

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer's document number 86346 and revision 1.2 against official Vishay channels. Confirm that the ordering suffix HE3_A-08 corresponds to the specific AEC-Q101 qualified variant packaged in taped units per reel. Ensure compliance with RoHS directives as indicated by the base part nomenclature before finalizing acquisition.

Selection Notes

Select this component when a dual Zener array in a small outline package is required for space-constrained designs. The common cathode arrangement allows independent control of two voltage references or clamping paths. Verify that the 7.5 V nominal rating aligns with circuit requirements and that the 5 mA test current matches the intended biasing conditions for optimal regulation performance.

Part Context

This device belongs to the DZ23 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series encompasses a wide range of voltages from 2.2 V to 75 V, all graded according to the international E24 standard. These components are designed for general-purpose voltage regulation and protection tasks in commercial and automotive electronics.

Replacement Considerations

Direct substitutes within the same family include other DZ23 variants such as DZ23C7V5-E3-18, though these may lack AEC-Q101 qualification. Cross-manufacturer equivalents must be evaluated for pin compatibility, power dissipation limits, and electrical parameter tolerances to ensure functional interchangeability.

FAQ

What is the ESD protection capability of the DZ23C7V5-HE3_A-08?

The device provides ESD protection greater than 8 kV according to the human body model and greater than 800 V according to the machine model, as defined by AEC-Q101.

How does the thermal resistance affect power dissipation?

The junction-to-lead thermal resistance is 250 K/W, allowing up to 500 mW dissipation when leads are clamped. On an FR-4 board, the junction-to-ambient thermal resistance is 420 K/W, limiting dissipation to 300 mW.

What is the internal configuration of the DZ23C7V5?

The component contains two Zener diodes arranged in a common cathode configuration within a single SOT-23 package.