1N5531D-1

Overview

The Microchip Technology 1N5531D-1 is a single Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 11 V with a tight tolerance of ±1%. The device is rated for a maximum power dissipation of 500 mW and utilizes the DO-204AH (DO-35) axial through-hole package. It operates within a junction temperature range of -65°C to +175°C, ensuring reliability in demanding environments.

Feature Summary

• Provides precise voltage regulation with a ±1% tolerance on the 11 V nominal Zener voltage.
• Capable of handling up to 500 mW of power dissipation in a compact glass axial package.
• Engineered for extended operational stability across a wide temperature range from -65°C to +175°C.

Applications

• Precision voltage reference circuits
• Overvoltage protection stages
• Clamping applications in sensitive analog signal paths

Procurement Notes

Verify that the specific JAN or military suffix requirements are met if the design mandates compliance with MIL-PRF-19500/437 standards. Confirm RoHS status as non-compliant for this specific part number. Ensure the DO-204AH package dimensions align with the PCB footprint constraints before finalizing procurement orders.

Selection Notes

Select the 1N5531D-1 when strict voltage accuracy is required, as indicated by the ±1% tolerance compared to standard commercial grades. Consider the high thermal operating limit of +175°C for high-temperature industrial environments. Verify that the 500 mW power rating suffices for the expected current levels in the target circuit design.

Part Context

This component belongs to the 1N55xx series of low noise Zener diodes manufactured by Microchip Technology. These devices are characterized by low reverse leakage and double plug construction. The series is often available in various qualification grades, including JAN and JANTX, to suit different reliability requirements.

Replacement Considerations

Public confirmed substitutes include JAN1N5531C-1 and JAN1N5531D-1 from Microchip Technology. Other parameter-equivalent options may exist from distributors but require verification against the specific electrical tolerances and package specifications.