1PGSMA4749HR3G

Single Zener Diodes Overview

The 1PGSMA4749HR3G is a surface mount silicon Zener diode manufactured by Taiwan Semiconductor Corporation. It operates within the 1PGSMA series, providing a nominal Zener voltage of 24 V with a tolerance of ±5%. The device features a DO-214AC (SMA) package and is rated for a total power dissipation of 1 W at 75°C ambient temperature. Electrical characteristics include a maximum DC Zener current of 38 mA and a leakage current of 1 µA at the reverse voltage rating.

Single Zener Diodes Feature Summary

• Features a photo glass passivated chip junction designed to ensure stable operation and reliability under various environmental conditions.
• Engineered with low inductance properties, making it suitable for high-frequency switching applications and automated placement processes.
• Compliant with RoHS directives and classified as halogen-free according to IEC 61249-2-21 standards.

Single Zener Diodes Applications

• General purpose voltage regulation circuits
• Overvoltage protection stages
• Clamping applications in electronic systems

Single Zener Diodes Procurement Notes

Verify the specific suffix 'HR3G' against official manufacturer documentation to confirm packing configuration and marking codes. Ensure the component meets moisture sensitivity level 1 requirements per J-STD-020 for your assembly process. Confirm that the ordering code matches the exact voltage and package specifications required for your design implementation.

Single Zener Diodes Selection Notes

Select this component when a 24 V reference or clamp is needed in a compact SMA footprint. Consider the 1 W power dissipation limit and derating curves for thermal management. Verify that the ±5% voltage tolerance aligns with circuit precision requirements. Check the maximum DC Zener current capability against expected load conditions.

Single Zener Diodes Part Context

This part belongs to the 1PGSMA series, which covers Zener voltages from 10 V to 200 V in the DO-214AC package. The series is characterized by its suitability for automated surface mount technology. It serves as a standard discrete solution for voltage control tasks where space constraints and reliability are primary design drivers.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers offering DO-214AC packaged Zener diodes with a 24 V nominal voltage and 1 W power rating. Ensure equivalent electrical parameters such as impedance, leakage current, and thermal resistance are met before substitution.