DZ23C4V7-G3-18

Overview

The DZ23C4V7-G3-18 is a silicon planar Zener diode from the Vishay DZ23-G series, housed in an SOT-23 surface-mount package. It features a nominal Zener voltage of 4.7 V with a ±5% tolerance and operates at a test current of 5 mA. The device has a maximum dynamic resistance of 78 Ω and a reverse leakage current of 3 μA at 4 V. Power dissipation is rated at 500 mW on lead-mounted conditions and 300 mW on FR-4 boards. It supports an operating temperature range from -55 °C to +150 °C.

Feature Summary

• Dual-element common cathode configuration within a compact three-terminal SOT-23 footprint
• Graded Zener voltages aligned with international E24 standards for precise circuit design
• High electrostatic discharge protection capability exceeding 8 kV via human body model

Applications

• Voltage reference circuits requiring stable low-voltage regulation
• Clamping applications for transient voltage suppression
• General-purpose signal conditioning in consumer electronics

Procurement Notes

Verify the specific ordering code suffix against official distributor catalogs to confirm reel specifications and packaging 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 array in a small outline package is required. The 4.7 V nominal voltage suits low-voltage logic level referencing. Verify thermal management requirements if ambient temperatures approach the upper operational limit of 150 °C.

Part Context

This part belongs to the DZ23-G series of small signal Zener diodes manufactured by Vishay Semiconductors. The series provides a wide range of standard voltage values in a standardized SOT-23 package, facilitating automated assembly and space-constrained board layouts.

Replacement Considerations

Compatible substitutes include other DZ23C4V7 variants such as DZ23C4V7-E3-18 or DZ23C4V7-G3-08, provided the electrical characteristics and package dimensions remain identical.