SML4733AHE3/5A

Single Zener Diodes Overview

The SML4733AHE3/5A is a surface mount Zener diode from the Vishay SML4728 to SML4764A series, housed in a DO-214AC (SMA) package. It features a nominal Zener voltage of 5.1 V with a ±5% tolerance and a maximum reverse leakage current of 10 µA at rated voltage. The device operates within a junction temperature range of -65 °C to +150 °C and dissipates up to 1 W of power. It is AEC-Q101 qualified for automotive reliability and complies with RoHS directives.

Single Zener Diodes Feature Summary

• AEC-Q101 qualified for automotive applications
• Low dynamic Zener impedance
• RoHS compliant and halogen-free construction
• High temperature soldering capability

Single Zener Diodes Applications

• Voltage regulation in automotive electronics
• Surge protection circuits
• Reference voltage sources
• Clamping applications

Single Zener Diodes Procurement Notes

Verify the specific ordering code suffix against the manufacturer's datasheet to confirm the exact tape and reel quantity configuration. Ensure that the component meets the required AEC-Q101 qualification standards for your specific application environment. Cross-reference the package dimensions and marking codes to guarantee compatibility with your PCB footprint and automated assembly processes.

Single Zener Diodes Selection Notes

Select this component when a precise 5.1 V reference is needed in a compact SMA package. The ±5% tolerance offers tighter regulation than standard variants. Consider the thermal dissipation limits and operating temperature range to ensure stability under load. Verify that the low leakage current specifications align with the sensitivity requirements of the target circuit design.

Single Zener Diodes Part Context

This part belongs to the Vishay SML47 series of surface mount Zener diodes. The series covers a wide voltage range from 3.3 V to 100 V in the DO-214AC package. The HE3 designation indicates an advanced plastic encapsulate for improved thermal performance and environmental compliance compared to commercial grade equivalents.

Single Zener Diodes Replacement Considerations

Direct replacements include other Vishay SML4733 variants such as SML4733-E3/5A or SML4733-5A, provided the voltage tolerance and package match. Other manufacturers offering DO-214AC Zener diodes with 5.1 V nominal voltage and similar electrical characteristics may be considered after verifying pinout and thermal ratings.