SMBG4742A/TR13

Single Zener Diodes Overview

The SMBG4742A/TR13 is a surface-mount silicon Zener diode manufactured by Microsemi Corporation. It provides voltage regulation with a nominal Zener voltage of 12 V and a maximum power dissipation of 2 W. The device utilizes the DO-215AA (SMBG) gull-wing package, which facilitates visible solder connections for inspection. It operates within a temperature range of -65°C to +150°C and features a voltage tolerance of ±5%. This component serves as a surface-mount equivalent to the JEDEC registered 1N4742A series.

Single Zener Diodes Feature Summary

• Surface-mount design in DO-215AA gull-wing package for visible solder joints
• Voltage regulation capability with 2 W power dissipation rating
• Equivalent electrical characteristics to JEDEC registered 1N4742A series

Single Zener Diodes Applications

• High-density circuit board mounting applications
• Low-profile electronic assembly requirements
• General-purpose voltage regulation circuits

Single Zener Diodes Procurement Notes

Verify the specific suffix 'A' confirms the required ±5% voltage tolerance, as other suffixes indicate different tolerances. Confirm RoHS compliance status via the 'e3' designation if applicable to the specific order code. Check manufacturer discontinuance notifications, as this product family has been subject to End-of-Life declarations. Ensure the TR13 tape-and-reel packaging matches automated assembly equipment specifications.

Single Zener Diodes Selection Notes

Select this component when a 2 W surface-mount Zener diode is required for 12 V regulation. The DO-215AA package offers higher thermal performance compared to standard 1 W axial packages. Consider the gull-wing lead form for visual solder joint verification during quality control. Verify that the ±5% tolerance meets the circuit's precision requirements before finalizing the bill of materials.

Single Zener Diodes Part Context

This part belongs to the SMBG4728A through SMBG4764A series of 2.0 Watt Zener diodes. These devices are designed as surface-mount equivalents to the traditional 1N47xx series, offering identical electrical characteristics but with increased power handling. The series covers a wide voltage range from 3.3 V to 100 V, providing designers with standardized options for various regulation needs in compact form factors.

Single Zener Diodes Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.