1N5525D/TR

Overview

The Microchip Technology 1N5525D/TR is a silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 6.2 V with a tight tolerance of ±1%. The device operates in a DO-35 axial through-hole package and dissipates up to 500 mW of power. Key electrical characteristics include a maximum dynamic impedance of 30 Ohms and a maximum reverse leakage current of 1 µA at 5 V. It is rated for junction temperatures between -65°C and +175°C.

Feature Summary

• Provides precise voltage regulation with a 1% tolerance on the 6.2 V Zener voltage.
• Constructed with silicon material for reliable performance in standard electronic circuits.
• Features hermetically sealed glass packaging for environmental protection.

Applications

• Precision voltage reference circuits
• Overvoltage protection stages
• Voltage regulator designs

Procurement Notes

Verify the specific suffix 'TR' indicates tape and reel packaging when sourcing this component. Confirm that the 1% tolerance variant matches the design requirements, as other variants like 1N5525B or 1N5525C offer different tolerances. Ensure the manufacturer is identified as Microchip Technology or its predecessor entities such as Microsemi, given historical corporate acquisitions affecting part lineage.

Selection Notes

Select the 1N5525D/TR when a stable 6.2 V reference with high accuracy is required. The 1% tolerance distinguishes it from standard 5% or 10% Zener diodes. Consider the 500 mW power dissipation limit and the 30 Ohm dynamic impedance for circuit stability. The DO-35 package suits through-hole assembly processes.

Part Context

This component belongs to the 1N5525 series of Zener diodes manufactured by Microchip Technology. The series includes various voltage ratings and tolerance grades. The 'D' suffix typically denotes the 1% tolerance grade, while 'TR' specifies the reel packaging format. This family is widely used in industrial and commercial electronics requiring reliable voltage clamping.

Replacement Considerations

Direct substitutes include the 1N5525D without the reel suffix if bulk packaging is acceptable. Other tolerance variants such as 1N5525B (±5%) or 1N5525C (±2%) may be used if tighter voltage control is not critical. Verify pinout compatibility with the DO-35 package before substitution.