1N5227B-T

Single Zener Diodes Overview

The Diodes Incorporated 1N5227B-T is a discontinued epitaxial Zener diode with a nominal voltage of 3.6V and a tolerance of ±5%. It features a maximum power dissipation of 500mW, a test current of 20mA, and a maximum Zener impedance of 24Ω at the test current. The device operates within a temperature range of -65°C to +175°C and utilizes a DO-35 glass axial-lead package.

Single Zener Diodes Feature Summary

• Epitaxial construction for high stability
• Lead-free finish compliant with RoHS directives
• Solderable leads per MIL-STD-208 standards

Single Zener Diodes Applications

• Voltage stabilization circuits
• Reference voltage generation
• Overvoltage protection

Single Zener Diodes Procurement Notes

This component is officially marked as obsolete and discontinued by Diodes Incorporated. Verify availability through authorized distributors or secondary markets. Confirm that the specific lot matches the required specifications, as manufacturing has ceased. Ensure compliance with any updated regulatory requirements before integration into new designs.

Single Zener Diodes Selection Notes

Select this part only if legacy compatibility is mandatory. For new designs, consider surface mount equivalents or alternative manufacturers offering active production. Evaluate thermal derating requirements carefully, as the junction-to-ambient thermal resistance is 300°C/W. Verify lead length constraints during soldering to maintain safe operating temperatures.

Single Zener Diodes Part Context

Part of the 1N5221B through 1N5267B series of 500mW Zener diodes. The series provides a wide selection of voltages from 2.4V to 75V in standard DO-35 packages. This specific model represents the lower voltage end of the lineup, utilizing negative temperature coefficients typical for breakdown voltages below approximately 5V.

Single Zener Diodes Replacement Considerations

Diodes Incorporated recommends using MMSZ52xxB series devices as replacements. Cross-reference with other manufacturers' 1N5227B equivalents in DO-35 packages. Verify electrical parameters match exactly when substituting.