BZX84B4V3-E3-08

Single Zener Diodes Overview

The BZX84B4V3-E3-08 is a silicon planar Zener diode from Vishay Semiconductors, designed for surface-mount applications in the SOT-23 package. It provides a nominal Zener voltage of 4.3 V with a tight tolerance of ±2%. The device operates within a test current range of 2 to 5 mA and features a maximum reverse leakage current of 3 µA at 1 V. Electrical characteristics include a dynamic resistance of 90 Ω at IZT1 and a temperature coefficient ranging from -6 to -1 x 10⁻⁴/°C. It supports an operating temperature range from -55 °C to +150 °C.

Single Zener Diodes Feature Summary

• Silicon planar construction offering low noise and excellent stability
• High electrostatic discharge protection capability exceeding 8 kV via human body model
• RoHS-compliant commercial grade material categorization

Single Zener Diodes Applications

• Voltage reference circuits requiring precise regulation
• Protection against overvoltage transients in sensitive electronics
• Clamping applications in signal processing paths

Single Zener Diodes Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number and datasheet revision. Confirm RoHS compliance status and ensure the ordering code matches the required ±2% tolerance specification. Validate that the SOT-23 package dimensions align with the target PCB footprint requirements before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a stable 4.3 V reference is needed with strict tolerance limits. The ±2% grading ensures tighter voltage accuracy compared to standard variants. Consider the low leakage current and high ESD rating for robust performance in environments susceptible to electrical stress or requiring minimal standby power consumption.

Single Zener Diodes Part Context

This device belongs to the BZX84 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series utilizes silicon planar technology and is available in various voltage grades standardized according to the international E24 series. The specific 'B' designation indicates the tighter ±2% voltage tolerance variant within the product family.

Single Zener Diodes Replacement Considerations

Substitute with other Vishay BZX84B4V3-E3-08 units maintaining identical pinout and electrical parameters. Verify compatibility if replacing with non-Vishay equivalents by matching the 4.3 V nominal voltage, ±2% tolerance, SOT-23 package, and thermal dissipation ratings.