MMSZ5262B_R1_00001

Single Zener Diodes Overview

The MMSZ5262B_R1_00001 is a surface mount silicon Zener diode from the MMSZ5221B series manufactured by Panjit. It features a nominal Zener voltage of 51 V with a tolerance range of 48.45 V to 53.55 V at a test current of 2.5 mA. The device dissipates up to 500 mW and operates within a junction temperature range of -55°C to +150°C. It utilizes an SOD-123 package with a maximum Zener impedance of 125 Ω and a maximum reverse leakage current of 0.1 μA at 39 V.

Single Zener Diodes Feature Summary

• Planar die construction for stable voltage regulation
• Green molding compound compliant with IEC 61249 standard
• Lead-free composition adhering to EU RoHS 2.0 directives

Single Zener Diodes Applications

• Voltage reference circuits
• Over-voltage protection
• Clamping applications in power supplies

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packaging details, as suffixes may indicate variations in reel size or tape specifications. Ensure compliance with environmental directives such as RoHS 2.0 and confirm the component meets the required thermal resistance ratings for the intended mounting pad layout on FR4 PCBs.

Single Zener Diodes Selection Notes

Select this component when a 51 V regulation point is required in a compact SMD form factor. The 500 mW power rating supports moderate current handling compared to lower-power variants. Verify that the 125 Ω impedance specification aligns with the noise and stability requirements of the target circuit design.

Single Zener Diodes Part Context

This part belongs to the MMSZ5221B series, which covers a wide voltage range from 2.4 V to 75 V. All members share identical mechanical dimensions and thermal characteristics defined by the SOD-123 package. The series is designed for automated assembly processes and offers consistent electrical performance across the voltage spectrum.

Single Zener Diodes Replacement Considerations

Direct replacements must match the 51 V nominal voltage, 500 mW power dissipation, and SOD-123 package. Verify that substitute components meet the same 125 Ω maximum Zener impedance and 0.1 μA leakage current limits to ensure functional equivalence.