MMSZ5229BS_R1_00001

Single Zener Diodes Overview

The MMSZ5229BS_R1_00001 is a surface mount silicon Zener diode from the MMSZ5221BS to MMSZ5267BS series manufactured by Panjit International Inc. It features a planar die construction and operates within a voltage range of 2.4 to 75 Volts with a power dissipation of 200 mWatt at 25°C ambient temperature. The device utilizes an SOD-323 molded plastic case with terminals solderable per MIL-STD-750 Method 2026. For this specific part, the nominal Zener voltage (Vz) is 4.3 V, with a minimum of 4.09 V and maximum of 4.52 V. The maximum Zener impedance (Zzt) is 22 Ohms at a test current (Izt) of 20.0 mA, while the maximum reverse leakage current (Ir) is 5.0 µA at a reverse voltage (Vr) of 1.0 V. The marking code is D4.

Single Zener Diodes Feature Summary

• Planar die construction for reliable performance
• Ideally suited for automated assembly processes
• Lead-free composition compliant with EU RoHS 2.0 standards

Single Zener Diodes Applications

• Voltage regulation in electronic circuits
• General purpose protection applications
• Standard use and operation in consumer electronics

Single Zener Diodes Procurement Notes

Verify the complete part number including suffixes against official Panjit documentation to ensure correct package type and packing quantity. Confirm compliance requirements such as RoHS 2.0 and IEC 61249 green molding compound standards prior to procurement. Check for any product change notifications or updates on the manufacturer's website before finalizing orders.

Single Zener Diodes Selection Notes

Select this component based on the required 4.3 V Zener voltage and 200 mW power dissipation limits. Ensure the SOD-323 package fits the PCB layout constraints. Consider the operating junction temperature range of -55 to +150°C for environmental suitability. Verify that the reverse leakage current and impedance specifications meet the circuit design requirements.

Single Zener Diodes Part Context

This component belongs to the MMSZ5221BS ~ MMSZ5267BS series of surface mount silicon Zener diodes. The series offers a wide range of nominal voltages from 2.4 V to 75 V, all sharing the same 200 mW power rating and SOD-323 package. The series is designed for general-purpose applications where compact size and automated assembly compatibility are prioritized.

Single Zener Diodes Replacement Considerations

Direct substitutes must match the 4.3 V nominal Zener voltage, 200 mW power rating, and SOD-323 package. Verify electrical characteristics such as Zener impedance and leakage current against the original datasheet. Ensure the replacement component also meets RoHS 2.0 compliance if required by the application.

Single Zener Diodes FAQ

What is the marking code for the MMSZ5229BS?

The marking code for the MMSZ5229BS is D4.

What is the maximum Zener impedance for the MMSZ5229BS?

The maximum Zener impedance (Zzt) for the MMSZ5229BS is 22 Ohms at a test current of 20.0 mA.