DZ23C4V3-E3-18

Overview

The DZ23C4V3-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 4.3 V with a tolerance of ±5 %. The device operates at a test current of 5 mA and features a maximum dynamic resistance of 90 Ω at this current level. Reverse leakage current is limited to 3 μA at a reverse voltage of 1 V. The component supports an operating temperature range from -55 °C to +150 °C and is supplied in reels of 10,000 units.

Feature Summary

• Silicon planar construction for reliable voltage regulation
• ESD protection capability exceeding 8 kV via human body model
• RoHS-compliant commercial grade material categorization

Applications

• Voltage reference circuits requiring stable low-voltage rails
• Clamping applications for transient voltage suppression
• General-purpose voltage regulation in compact PCB layouts

Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm reel size and packaging configuration. Ensure that the required Zener voltage tolerance aligns with the standard ±5 % specification provided in the datasheet. Confirm compliance requirements such as RoHS status before finalizing procurement orders.

Selection Notes

Select this component when a precise 4.3 V reference is needed within a small SOT-23 footprint. Consider the thermal resistance characteristics if power dissipation exceeds typical levels. Verify that the operating temperature range meets the environmental conditions of the target application.

Part Context

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

Replacement Considerations

Direct substitutes include other DZ23 series variants with identical pinouts and similar electrical characteristics. Cross-reference with other manufacturers offering SOT-23 packaged Zener diodes rated at 4.3 V ±5 % to ensure compatibility with existing board designs.