SMBJ5943AE3/TR13

Single Zener Diodes Overview

The SMBJ5943AE3/TR13 is a surface mount 2.0W Zener diode in the DO-214AA (SMB) package, equivalent to JEDEC registered 1N5943. It features a nominal Zener voltage of 56V with a ±10% tolerance. The device operates within a junction and storage temperature range of -65°C to +150°C. It utilizes a J-bend design for high-density mounting and has a moisture classification of Level 1.

Single Zener Diodes Feature Summary

• Surface mount 2.0W Zener diode equivalent to JEDEC registered 1N5943
• DO-214AA J-bend package designed for high-density PC board mounting
• Moisture classification Level 1 requiring no dry pack per IPC/JEDEC standards
• RoHS compliant matte-tin plating indicated by e3 suffix

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• Protection against high surge stresses
• Replacement for axial-lead 1N5943 series in through-hole designs

Single Zener Diodes Procurement Notes

Verify the specific part number against official Microchip documentation to confirm availability status and lead times. Ensure compliance with RoHS requirements if applicable to your manufacturing process. Check for any product change notifications or discontinuance notices that may affect long-term supply. Confirm packaging details match your assembly line requirements.

Single Zener Diodes Selection Notes

Select this component when a 2.0W power rating is required in a compact SMB package. Consider the ±10% voltage tolerance suitable for general regulation tasks. Evaluate thermal resistance characteristics for heat sinking needs. Compare against lower power alternatives if space constraints are less critical.

Single Zener Diodes Part Context

Part of the SMBJ59 family of silicon 2.0 Watt Zener diodes. This family offers higher power ratings compared to prior SMS package identifications. Designed as a direct replacement for older axial-lead equivalents while providing improved thermal performance and mounting density advantages.

Single Zener Diodes Replacement Considerations

Directly replaces JEDEC registered 1N5943 axial-lead diodes. Equivalent electrical characteristics allow for drop-in substitution in existing designs. Verify footprint compatibility with DO-214AA pads.