1N4561B

Single Zener Diodes Overview

The Microchip Technology 1N4561B is a silicon unidirectional Zener diode designed for high-power voltage regulation applications. It features a nominal Zener voltage of 5.6 V with a tolerance of ±5%. The device is rated for a maximum power dissipation of 50 W and operates within a junction temperature range of -65°C to 175°C. It utilizes a TO-3 (TO-204AD) flange mount package, providing robust thermal management capabilities suitable for demanding industrial environments.

Single Zener Diodes Feature Summary

• High power handling capability with a 50 W maximum dissipation rating
• Precision voltage regulation with a tight ±5% tolerance on the 5.6 V reference
• Extended operational reliability across extreme temperatures from -65°C to 175°C
• Durable metal flange mount construction for efficient heat transfer

Single Zener Diodes Applications

• High-power voltage regulation circuits
• Industrial control systems requiring stable reference voltages
• Military-grade electronic assemblies per MIL-PRF-19500/114 standards

Single Zener Diodes Procurement Notes

Verify that the specific procurement order explicitly references the '1N4561B' suffix to ensure the correct ±5% tolerance variant is supplied. Standard commercial equivalents may carry different tolerances or qualification levels. Confirm RoHS compliance status as this specific part number often falls under non-RoHS categories depending on the manufacturing lot and intended military or commercial application scope.

Single Zener Diodes Selection Notes

Select the 1N4561B when a precise 5.6 V reference with tighter tolerance than standard commercial versions is required. Ensure the circuit design accommodates the thermal requirements of the TO-3 package for 50 W dissipation. Verify that the system environment supports the specified -65°C to 175°C operating range and that the unidirectional configuration aligns with the polarity requirements of the protection or regulation scheme.

Single Zener Diodes Part Context

This component belongs to the 1N4561 series of high-power Zener diodes manufactured by Microchip Technology. The series includes variants such as 1N4561A and 1N4561C, which differ primarily in voltage tolerance specifications. The 1N4561B specifically denotes the 5% tolerance version, distinguishing it from the wider tolerance options available within the same JEDEC registered family.

Single Zener Diodes Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.