1N5226B-TR

Single Zener Diodes Overview

The Vishay 1N5226B-TR is a silicon planar power Zener diode with a nominal voltage of 3.3 V and a maximum power dissipation of 500 mW. It features a standard ±5% tolerance, indicated by the 'B' suffix, and operates within a junction temperature range of -65 °C to +175 °C. The device utilizes a DO-35 (DO-204AH) glass axial package with two pins. Electrical characteristics include a test current of 20 mA, a maximum reverse leakage current of 25 μA at 1 V, and a typical dynamic resistance of 28 Ω.

Single Zener Diodes Feature Summary

• Utilizes silicon planar technology for robust voltage regulation
• Features a glass passivated junction housed in a DO-35 axial package
• Provides standard ±5% Zener voltage tolerance

Single Zener Diodes Applications

• Voltage stabilization

Single Zener Diodes Procurement Notes

Verify that the ordering code includes the '-TR' suffix to confirm taped-and-reeled packaging. Ensure the specific part number matches the required ±5% tolerance designation ('B' suffix). Confirm compliance requirements such as RoHS status against project specifications before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a 3.3 V reference or regulator is needed in a through-hole design. The 500 mW power rating supports moderate current loads. Verify that the operating environment stays within the specified thermal limits and that the axial lead length accommodates the PCB layout constraints.

Single Zener Diodes Part Context

This component belongs to the 1N5221 to 1N5267 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series covers a wide Zener voltage range from 2.4 V to 75 V. The 1N5226B variant specifically targets the 3.3 V segment of this extensive lineup.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers offering equivalent 3.3 V, 500 mW Zener diodes in the DO-35 package. Verify that any substitute maintains identical electrical parameters, including the 28 Ω dynamic resistance and 25 μA leakage current limits.

Single Zener Diodes FAQ

What does the 'B' suffix indicate in the 1N5226B part number?

The 'B' suffix denotes a standard Zener voltage tolerance of ±5%. A 'C' suffix would indicate a tighter ±2% tolerance.

What is the maximum operating junction temperature for this diode?

The maximum junction temperature is rated at 175 °C.