1N5231B

Single Zener Diodes Overview

The SMC Diode Solutions 1N5231B is a silicon unidirectional Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 5.1 V with a tolerance of ±5%. The device has a maximum power dissipation of 500 mW and operates in the SOD-123 surface-mount package. Key electrical characteristics include a maximum reverse leakage current of 5 µA at 2 V, a maximum Zener impedance of 17 Ohms, and a test current of 20 mA. The component supports an operating junction temperature range from -55°C to +150°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation with a nominal 5.1 V reference point
• Utilizes compact SOD-123 surface-mount packaging for automated assembly
• Ensures low leakage current performance under reverse bias conditions

Single Zener Diodes Applications

• General-purpose voltage regulation circuits
• Reference voltage sources in electronic systems
• Overvoltage protection stages

Single Zener Diodes Procurement Notes

Verify the specific manufacturer part number against official SMC Diode Solutions documentation to confirm exact specifications. Ensure the selected variant matches the required package type and tolerance class for your design. Cross-reference datasheets for thermal derating curves and absolute maximum ratings before integration.

Single Zener Diodes Selection Notes

Select this component when a standard 5.1 V reference is required in a surface-mount form factor. Consider the 500 mW power rating and thermal management capabilities of the SOD-123 package. Verify compatibility with PCB footprint dimensions and soldering profiles specified in the manufacturer's guidelines.

Single Zener Diodes Part Context

This component belongs to the broader family of Zener diodes used for voltage clamping and regulation. While sharing similar electrical functions with other 5.1 V devices, the SMC Diode Solutions version offers specific packaging and manufacturing standards. It serves as a discrete semiconductor solution for maintaining stable potential levels in low-power electronic circuits.

Single Zener Diodes Replacement Considerations

Equivalent parts include MMSZ5231B from Good-Ark Semiconductor and MMSZ5231B_R1_00001 from Panjit International Inc. These alternatives offer parameter equivalence but require verification of pinout compatibility and thermal characteristics.