BZX84C18-HE3_A-08

Single Zener Diodes Overview

The BZX84C18-HE3_A-08 is a silicon planar Zener diode from Vishay Semiconductors, housed in an SOT-23 surface-mount package. It provides a nominal Zener voltage of 18 V with a standard tolerance of ±5%. The device operates within a temperature range of -55 °C to +150 °C and features AEC-Q101 qualification for automotive reliability. Electrical characteristics include a test current of 5 mA, a maximum reverse leakage current of 0.05 µA at 12.6 V, and a dynamic resistance of 45 Ω.

Single Zener Diodes Feature Summary

• AEC-Q101 qualified for automotive-grade reliability
• ESD protection exceeding 8 kV via human body model
• RoHS-compliant HE3_A construction

Single Zener Diodes Applications

• Voltage regulation in automotive electronics
• Clamping circuits for transient suppression
• Reference voltage generation in measurement systems

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix against official documentation to confirm AEC-Q101 qualification status. Ensure that the required tolerance aligns with the 'C' designation for ±5% specifications. Confirm compliance with RoHS standards and material categorization requirements before finalizing procurement decisions.

Single Zener Diodes Selection Notes

Select this component when a stable 18 V reference is required in space-constrained designs utilizing the SOT-23 footprint. Consider the thermal resistance values and power dissipation limits relative to the expected ambient operating conditions. Verify that the specified ESD ratings meet the environmental requirements of the target application.

Single Zener Diodes Part Context

This part belongs to the BZX84 series of small signal Zener diodes manufactured by Vishay General Semiconductor - Diodes Division. The series utilizes silicon planar technology and offers a wide range of standardized voltage options graded according to international standards.

Single Zener Diodes Replacement Considerations

BZX84C18-E3-08

Single Zener Diodes FAQ

What is the ESD capability of the BZX84C18-HE3_A-08?

The device has an ESD capability of greater than 8 kV according to the human body model and greater than 800 V according to the machine model.

How does the 'C' designation affect the voltage tolerance?

The 'C' in the ordering code indicates a standard Zener voltage tolerance of ±5%, whereas replacing it with 'B' would provide a tighter ±2% tolerance.