SML4743AHE3/61

Single Zener Diodes Overview

The Vishay SML4743AHE3/61 is a surface-mount Zener diode in the DO-214AC (SMA) package. It features a nominal Zener voltage of 13 V with a ±5 % tolerance, indicated by the 'A' suffix. The device operates at a test current of 19 mA and has a maximum dynamic impedance of 10 Ω. It supports a power dissipation of 1 W at 75 °C, with a junction temperature range up to 150 °C and storage temperatures from -65 °C to +150 °C. The component is AEC-Q101 qualified and RoHS compliant.

Single Zener Diodes Feature Summary

• AEC-Q101 automotive qualification for enhanced reliability
• Low Zener impedance and low regulation factor
• High temperature soldering capability at 260 °C for 10 seconds
• UL 94 V-0 flammability rating for the plastic package

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• General purpose rectification

Single Zener Diodes Procurement Notes

Verify the specific ordering code matches the required tolerance and packaging format. Confirm that the HE3 designation aligns with the necessary environmental compliance standards for the target application. Ensure the /61 suffix corresponds to the correct reel size for automated assembly processes.

Single Zener Diodes Selection Notes

Select this component when a precise 13 V reference with tight tolerance is required in a compact surface-mount footprint. Consider the thermal derating curve for continuous operation above ambient temperatures. Verify compatibility with standard SMA pad layouts during PCB design.

Single Zener Diodes Part Context

This part belongs to the SML4728 to SML4764A series of surface mount Zener diodes manufactured by Vishay Semiconductors. The series covers a wide voltage range from 3.3 V to 100 V in the DO-214AC package. The SML4743 variant specifically targets applications requiring stable voltage regulation near the 13 V threshold.

Single Zener Diodes Replacement Considerations

Cross-reference with other SML4743 variants such as SML4743-E3/61 for commercial grade or SML4743HE3/5A for different tape quantities. Ensure any substitute maintains the same ±5 % tolerance and AEC-Q101 qualification if automotive standards are mandatory.