1N5222B

Single Zener Diodes Overview

The 1N5222B is a unidirectional silicon Zener diode manufactured by SMC Diode Solutions. It features a nominal Zener voltage of 2.5 V with a tolerance of ±5%. The device is designed for through-hole mounting in the DO-35 glass axial package, providing a maximum power dissipation of 0.5 W at 25°C ambient temperature. Key electrical characteristics include a test current of 20 mA, a maximum Zener impedance of 30 Ω, and a maximum reverse leakage current of 100 μA. The component operates within a junction temperature range of -65°C to 200°C.

Single Zener Diodes Feature Summary

• Low reverse leakage current for stable performance
• Low Zener impedance ensuring voltage regulation accuracy
• High stability and reliability suitable for general-purpose applications
• Lead-free construction compliant with environmental standards

Single Zener Diodes Applications

• Voltage reference circuits requiring precise low-voltage regulation
• Protection against overvoltage transients in sensitive electronic systems
• Clamping applications in signal processing paths

Single Zener Diodes Procurement Notes

Verify the specific manufacturer source when sourcing this part number, as it is produced by multiple vendors including onsemi and Micro Commercial Components. Confirm that the selected unit matches the required DO-35 axial package and lead-free specifications. Ensure the supplier provides official datasheets confirming the 2.5 V nominal voltage and 0.5 W power rating to guarantee compatibility with the design requirements.

Single Zener Diodes Selection Notes

Select this component for designs requiring a robust, through-hole regulated voltage source at 2.5 V. The DO-35 package offers mechanical durability for standard PCB layouts. Consider the 30 Ω impedance limit when designing for high-frequency noise sensitivity. Verify thermal management capabilities if operating near the maximum 0.5 W dissipation limit or elevated temperatures.

Single Zener Diodes Part Context

This component belongs to the 1N52-series family of Zener diodes, widely recognized for their general-purpose utility in analog electronics. The series covers a broad range of voltage values, with the 1N5222B specifically addressing the lower end of the voltage spectrum. Its standardized form factor ensures interchangeability across various legacy and modern circuit designs.

Single Zener Diodes Replacement Considerations

Equivalent parts include the onsemi 1N5222B and MCC 1N5222B-TP. Verify pinout compatibility and package dimensions (DO-35) before substitution. Ensure replacement units meet the same 2.5 V nominal voltage and 0.5 W power dissipation ratings.