BZX84B75-E3-18

Single Zener Diodes Overview

The Vishay BZX84B75-E3-18 is a silicon planar Zener diode in the BZX84 series, housed in an SOT-23 surface-mount package. It provides a nominal Zener voltage of 75 V with a tight tolerance of ±2%. The device operates at a test current of 2 mA and dissipates up to 300 mW on an FR-4 board. Key electrical parameters include a maximum reverse leakage current of 52.5 µA at 67.5 V, a dynamic resistance of 255 Ω, and a temperature coefficient ranging from 10 to 12 x 10⁻⁴/°C.

Single Zener Diodes Feature Summary

• Silicon planar construction for stable voltage regulation
• Tight ±2% voltage tolerance for precision applications
• ESD protection exceeding 8 kV (HBM) and 800 V (MM)
• RoHS-compliant commercial grade material categorization

Single Zener Diodes Applications

• Precision voltage reference circuits
• Overvoltage protection stages
• Voltage clamping applications
• General-purpose signal conditioning

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix '-18' confirms the 10,000-unit reel packaging format. Ensure the 'E3' designation aligns with required RoHS compliance standards for your manufacturing process. Confirm that the standard commercial grade meets environmental requirements, as AEC-Q101 automotive qualification requires the 'HE3_A' suffix variant.

Single Zener Diodes Selection Notes

Select this component when a precise 75 V regulation point is required within a compact SOT-23 footprint. The ±2% tolerance makes it suitable for tighter circuit constraints than standard ±5% variants. Consider the 255 Ω dynamic resistance for impedance matching needs. Verify thermal management capabilities if operating near the 300 mW dissipation limit on standard PCB footprints.

Single Zener Diodes Part Context

This part belongs to the Vishay BZX84 series of small-signal Zener diodes. The series covers a wide voltage range from 2.2 V to 75 V. The 'B' prefix indicates the tighter ±2% tolerance grading compared to the standard 'C' graded parts. The E3 suffix denotes lead-free termination compliant with international environmental standards.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers offering 75 V Zener diodes in SOT-23 packages. Verify pinout compatibility and thermal resistance characteristics. Note that while voltage and tolerance may match, dynamic resistance and leakage specifications can vary significantly between different brand datasheets.