DZ23C4V7-E3-18

Overview

The DZ23C4V7-E3-18 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 4.7 V with a standard tolerance of ±5 %. The device operates at a test current of 5 mA and features a maximum dynamic resistance of 78 Ω at this current level. Reverse leakage current is specified at a maximum of 3 μA when tested at 2 V. The component is rated for a power dissipation of 300 mW on an FR-4 board and supports an operating temperature range from -55 °C to +150 °C.

Feature Summary

• Silicon planar construction with E24 graded Zener voltages
• ESD protection exceeding 8 kV via human body model
• RoHS-compliant commercial grade configuration

Applications

• Voltage reference circuits requiring stable low-voltage regulation
• Protection against electrostatic discharge in sensitive electronics
• General-purpose voltage clamping applications

Procurement Notes

Verify that the ordering suffix matches the required reel size and quantity. Confirm RoHS compliance status and AEC-Q101 qualification requirements before finalizing procurement orders. Ensure storage conditions adhere to moisture sensitivity level specifications.

Selection Notes

Select this component based on the specific 4.7 V nominal requirement and ±5 % tolerance needs. Consider the 300 mW power dissipation limit on FR-4 boards for thermal management. Verify compatibility with SOT-23 footprint dimensions during PCB layout design.

Part Context

This part 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, offering standardized tolerances and consistent packaging across multiple voltage options within the same product family.

Replacement Considerations

Direct substitutes include other DZ23 series variants with identical voltage ratings but different packaging suffixes, such as DZ23C4V7-E3-08.