BZT52B27-E3-18

Single Zener Diodes Overview

The Vishay BZT52B27-E3-18 is a silicon planar Zener diode in the SOD-123 surface-mount package. It provides a nominal Zener voltage of 27 V with a tight tolerance of ±2%. The device operates within a junction temperature range of -55 °C to +150 °C and features a maximum power dissipation of 500 mW at ambient conditions, reducing to 300 mW on an FR-4 board. It exhibits a reverse leakage current of 100 nA at 20 V and a dynamic impedance of 80 Ω.

Single Zener Diodes Feature Summary

• Utilizes silicon planar technology for stable voltage regulation
• Offers high precision with a ±2% Zener voltage tolerance
• Provides robust ESD protection exceeding 8 kV (HBM) and 800 V (MM)
• Complies with RoHS standards for commercial grade applications

Single Zener Diodes Applications

• Voltage reference circuits requiring precise potential levels
• Overvoltage protection stages in signal conditioning paths
• Clamping applications in low-power electronic assemblies

Single Zener Diodes Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm that the ordering code matches the specific suffix requirements for tape packaging. Ensure compliance with local import regulations regarding semiconductor materials. Validate datasheet revisions against the manufacturing date code prior to integration into production workflows.

Single Zener Diodes Selection Notes

Select this variant when strict voltage accuracy is required over standard commercial grades. The SOD-123 footprint supports automated surface-mount assembly processes. Evaluate thermal management strategies if operating near the upper limits of the specified power dissipation range under continuous load conditions.

Single Zener Diodes Part Context

This component belongs to the BZT52 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series encompasses various voltage ratings graded according to the international E24 standard. The base product number indicates the core electrical characteristics shared across the family.

Single Zener Diodes Replacement Considerations

Substitute parts must match the 27 V nominal voltage, ±2% tolerance, and SOD-123 package dimensions. Verify equivalent dynamic impedance and thermal resistance specifications to ensure circuit performance parity.