MMSZ5243B-HF

Single Zener Diodes Overview

The MMSZ5243B-HF is a single Zener diode manufactured by Comchip Technology, designed for surface-mount applications in the SOD-123 package. It features a nominal Zener voltage of 13 V with a tolerance of ±5%. The device supports a power dissipation of 500 mW and operates within a temperature range of -55 °C to +150 °C. Key electrical characteristics include a maximum reverse leakage current of 100 nA, a Zener impedance of 35 Ohms, and a test current of 5 mA.

Single Zener Diodes Feature Summary

• Planar die construction for reliable voltage regulation
• Ultra-small surface mount package suitable for automated assembly
• Designed for general-purpose medium current applications

Single Zener Diodes Applications

• Voltage reference circuits
• Over-voltage protection
• General purpose rectification

Single Zener Diodes Procurement Notes

Verify the specific datasheet version from Comchip Technology before integration. Confirm that the SOD-123 footprint matches your PCB layout requirements. Ensure the operating environment stays within the specified -55 °C to +150 °C range to maintain performance. Check RoHS compliance documentation if required for your manufacturing standards.

Single Zener Diodes Selection Notes

Select this component when a 13 V regulation point is required in a compact SMD form factor. The 500 mW power rating allows for moderate current handling compared to lower-power variants. Consider the 35 Ohm impedance for noise-sensitive designs. Verify thermal management needs based on the actual circuit power dissipation.

Single Zener Diodes Part Context

This part belongs to the MMSZ series of Zener diodes from Comchip Technology. The series utilizes planar die construction and is optimized for automated assembly processes. It serves as a standard solution for voltage regulation in consumer and industrial electronics where space constraints are critical.

Single Zener Diodes Replacement Considerations

Direct substitutes may include other manufacturers' parts in the SOD-123 package with identical 13 V, 500 mW specifications. Verify pinout compatibility and thermal resistance values before substitution.