SMBJ4729CE3/TR13

Single Zener Diodes Overview

The SMBJ4729CE3/TR13 is a Zener diode manufactured by Microsemi Corporation, designed for voltage regulation and reference applications. It features a standard Zener voltage of 3.6V with a power dissipation rating of 1.25W. The component utilizes an SMB (DO-214AA) surface-mount package, ensuring compatibility with automated assembly processes. Key electrical characteristics include a reverse leakage current of 500nA at 79.2V and a forward voltage drop of 1.2V. It operates within a temperature range of -65°C to +150°C and holds a Moisture Sensitivity Level of 1.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation in a compact surface-mount SMB package
• Capable of handling high thermal loads with a 1.25W power dissipation rating
• Operates reliably across a wide industrial temperature range

Single Zener Diodes Applications

• Voltage regulation circuits
• Voltage reference sources
• Over-voltage protection interfaces

Single Zener Diodes Procurement Notes

Verify the specific manufacturer source, as Microsemi's semiconductor division was acquired by Microchip Technology. Confirm that the part number suffix corresponds to the correct RoHS-compliant variant and reel packaging specifications required for your manufacturing line. Ensure the component matches the exact SMB/DO-214AA footprint dimensions.

Single Zener Diodes Selection Notes

Select this component when a precise 3.6V regulation point is required in a space-constrained design. The SMB package offers a balance between power handling and board area efficiency compared to smaller SOD packages. Consider the 1.25W thermal rating to ensure adequate heat dissipation without additional heatsinking in typical PCB layouts.

Single Zener Diodes Part Context

This device belongs to the SMBJ series of Zener diodes, which are characterized by their plastic encapsulation and robust mechanical structure. The 'e3' suffix indicates lead-free composition compliant with environmental directives. The TR13 designation typically refers to the tape-and-reel packaging format used for high-volume surface-mount technology assembly.

Single Zener Diodes FAQ

What is the maximum operating temperature for the SMBJ4729CE3/TR13?

The component supports a maximum operating temperature of +150°C.

Does the SMBJ4729CE3/TR13 support bidirectional transient protection?

No, this specific part number is a unidirectional Zener diode intended for voltage regulation, not bidirectional TVS protection.