1N5226

Single Zener Diodes Overview

The SMC Diode Solutions 1N5226 is a silicon planar Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 3.3 V with a standard tolerance of ±5%. The device is rated for a maximum power dissipation of 500 mW and utilizes a DO-204AH (DO-35) axial leaded package suitable for through-hole mounting. Key electrical characteristics include a test current of 20 mA, a maximum Zener impedance of 28 Ω, and a maximum reverse leakage current of 25 μA. It operates at temperatures up to 175°C.

Single Zener Diodes Feature Summary

• Utilizes silicon planar technology for reliable voltage regulation
• Provides stable reference voltage with standard 5% tolerance
• Designed for high-temperature operation up to 175°C

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• Clamping applications

Single Zener Diodes Procurement Notes

Verify the specific manufacturer datasheet for the SMC Diode Solutions variant, as the 1N5226 designation is widely used across multiple suppliers including Vishay, Microsemi, and others. Ensure the ordering code matches the required tolerance suffix if applicable. Confirm package dimensions and pin compatibility with your PCB layout before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a 3.3 V Zener reference is required in a through-hole assembly. Consider the 500 mW power rating and thermal management needs for your specific circuit environment. Verify that the 28 Ω impedance and 25 μA leakage specifications meet your system's precision requirements compared to tighter-tolerance alternatives.

Single Zener Diodes Part Context

The 1N5226 belongs to the standard 1N52xx series of low-power Zener diodes. This series is commonly used in general-purpose electronics for simple regulation tasks. The DO-35 glass axial package is a legacy form factor still prevalent in industrial and consumer equipment requiring robust through-hole components.

Single Zener Diodes Replacement Considerations

Direct substitutes include 1N5226B from Vishay or Microchip Technology. Other manufacturers such as ON Semiconductor and Diodes Inc. offer equivalent parts under the same base number. Ensure the replacement maintains the 3.3 V nominal voltage and 500 mW power rating.