BZX84B51-HE3_A-08

Single Zener Diodes Overview

The BZX84B51-HE3_A-08 is a silicon planar Zener diode from Vishay, housed in an SOT-23 surface-mount package. It provides a nominal Zener voltage of 51 V with a tight tolerance of ±2%. The device is AEC-Q101 qualified for automotive reliability and features RoHS compliance. Key electrical characteristics include a maximum reverse leakage current of 0.05 µA at 39.2 V and a dynamic resistance of 180 Ω at the test current of 2 mA.

Single Zener Diodes Feature Summary

• AEC-Q101 qualified for automotive applications
• Tight ±2% Zener voltage tolerance
• Low reverse leakage current
• RoHS compliant construction

Single Zener Diodes Applications

• Voltage regulation circuits
• Reference voltage generation
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify that the ordering code matches the specific suffix requirements for automotive qualification and tape-and-reel packaging. Confirm the component meets the required temperature range and power dissipation limits for the intended application environment before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a precise 51 V reference is needed with strict tolerance requirements. The AEC-Q101 qualification makes it suitable for automotive designs requiring high reliability. Ensure the circuit design accounts for the specified thermal resistance and power dissipation limits to maintain safe operating temperatures.

Single Zener Diodes Part Context

This part belongs to the Vishay BZX84 series of small signal Zener diodes. The series offers various breakdown voltages graded according to the E24 standard. The 'B' designation indicates the tighter ±2% tolerance variant, while the 'HE3_A' suffix denotes the lead-free, halogen-free, and AEC-Q101 qualified version packaged in SOT-23.

Single Zener Diodes Replacement Considerations

Direct replacements must match the 51 V nominal voltage, ±2% tolerance, SOT-23 package, and AEC-Q101 qualification. Verify that alternative components meet the same dynamic resistance and leakage current specifications to ensure circuit performance parity.

Single Zener Diodes FAQ

What is the Zener voltage tolerance for this part?

The BZX84B51-HE3_A-08 has a Zener voltage tolerance of ±2%, as indicated by the 'B' in the part number.

Is this component qualified for automotive use?

Yes, the HE3_A suffix indicates that the device is AEC-Q101 qualified.