1N5524D/TR

Overview

The 1N5524D/TR is a single Zener diode manufactured by Microchip Technology, designed for voltage regulation applications. It features a nominal Zener voltage of 5.6 V with a tight tolerance of ±1%. The device is rated for a maximum power dissipation of 500 mW and operates within an extended junction temperature range from -65°C to +175°C. Packaged in the DO-204AH (DO-35) axial through-hole format and supplied in tape and reel configuration, it exhibits a maximum Zener impedance of 30 Ohms at the test current. Reverse leakage current is specified at 2 µA when measured at 3.5 V.

Feature Summary

• Provides precise voltage regulation with a tight ±1% tolerance on the 5.6 V Zener voltage.
• Capable of operation in extreme thermal environments with a junction temperature range extending up to +175°C.
• Engineered for high reliability with low reverse leakage current characteristics under specified bias conditions.

Applications

• Precision voltage reference circuits requiring stable DC levels
• Over-voltage protection stages in sensitive electronic systems
• Clamping applications in signal processing paths

Procurement Notes

Verify that the specific suffix /TR indicates the tape and reel packaging format required for automated assembly processes. Confirm that the ±1% tolerance designation aligns with the precision requirements of the target design, as standard variants may offer wider tolerances. Ensure the DO-204AH package dimensions are compatible with the printed circuit board layout constraints before finalizing procurement orders.

Selection Notes

Select this component when strict voltage accuracy is critical, as indicated by the D suffix denoting ±1% tolerance. The 500 mW power rating supports moderate current loads in compact axial packages. Consider the extended temperature range suitability for harsh industrial or aerospace environments where standard commercial grade devices might fail. Verify compatibility with existing supply chain channels for reel-packaged discrete semiconductors.

Part Context

This part belongs to the 1N55xx series of Zener diodes produced by Microchip Technology, which offers a wide range of voltage options and tolerance grades. The series is characterized by robust construction suitable for demanding applications. The 1N5524D variant specifically targets applications needing higher precision than standard commercial grades, distinguishing itself through tighter manufacturing controls on the breakdown voltage parameter.

Replacement Considerations

The 1N5524D is listed as a parameter-equivalent substitute for the 1N5524D/TR variant. Both share identical electrical specifications including the 5.6 V rating and ±1% tolerance. Verify package consistency if switching between bulk and reel formats, although the electrical performance remains comparable.