1SMA4734_R1_00001

Single Zener Diodes Overview

The 1SMA4734_R1_00001 is a surface mount silicon Zener diode manufactured by Panjit International Inc. It belongs to the 1SMA4728~1SMA4757 series and features a nominal Zener voltage of 5.6 V with a tolerance of ±5%. The device operates within a junction temperature range of -55°C to +150°C and dissipates up to 1 Watt of power at 25°C ambient temperature, derating above 50°C. It utilizes a JEDEC DO-214AC (SMA) molded plastic package and supports peak forward surge currents of 10 Amps.

Single Zener Diodes Feature Summary

• Designed for surface mounted applications to optimize board space
• Features low inductance characteristics
• Plastic package meets Underwriters Laboratory Flammability Classification 94V-O
• Compliant with EU RoHS 2.0 standards and IEC 61249 green molding compound

Single Zener Diodes Applications

• General purpose voltage regulation in electronic circuits
• Clamping applications for transient voltage suppression
• Reference voltage sources in power supply designs

Single Zener Diodes Procurement Notes

Verify the specific part number against official Panjit documentation to ensure correct voltage rating and package type. Confirm compliance requirements such as RoHS 2.0 and UL 94V-O flammability ratings match project specifications. Check for any recent product change notifications or datasheet revisions that may affect mechanical dimensions or electrical parameters before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a 5.6 V Zener reference is required in a compact SMA footprint. Ensure the circuit design accounts for the 1 Watt power dissipation limit and the thermal resistance of 150 °C/W. Verify that the operating environment stays within the specified -55°C to +150°C junction temperature range and that the reverse leakage current specifications meet the application's sensitivity requirements.

Single Zener Diodes Part Context

This component is part of the 1SMA4728~1SMA4757 series from Panjit International Inc., which covers a wide range of Zener voltages from 3.3 V to 51 V. All devices in this series share the same DO-214AC package and general mechanical features, differing primarily in their nominal Zener voltage and associated impedance values. This series is designed for standard surface mount manufacturing processes.

Single Zener Diodes Replacement Considerations

Compatible substitutes include other manufacturers' SMA packaged Zener diodes with a 5.6 V nominal voltage and ±5% tolerance. Ensure replacement parts match the 1W power rating, DO-214AC footprint, and maximum junction temperature of 150°C. Verify that the replacement's Zener impedance and leakage current characteristics are suitable for the specific circuit requirements.