1N5248B-1E3/TR

Single Zener Diodes Overview

The Microchip Technology 1N5248B-1E3/TR is a single Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 18 V with a tolerance of 5%. The device operates in the DO-204AH (DO-35) axial leaded package and dissipates up to 500 mW of power. Electrical characteristics include a maximum reverse leakage current of 100 nA, a Zener impedance of 21 Ohms at a test current of 7 mA, and a forward voltage of 1.1 V. It supports an operating temperature range from -65 °C to +175 °C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation using a single Zener junction structure
• Utilizes glass passivated die construction for environmental durability
• Offers high thermal stability across extended industrial temperature ranges

Single Zener Diodes Applications

• General purpose voltage reference circuits
• Overvoltage protection stages
• Biasing networks in analog signal processing

Single Zener Diodes Procurement Notes

Verify the specific suffix 'e3' indicates lead-free compliance and 'TR' denotes reel packaging. Confirm the manufacturer designation matches Microchip Technology or authorized successor entities. Ensure the component meets RoHS directives before integration into regulated assemblies.

Single Zener Diodes Selection Notes

Select this component when a precise 18 V regulation point is required within a standard axial footprint. Consider the 5% tolerance and 21 Ohm impedance for circuit sensitivity requirements. Verify that the 500 mW power rating accommodates the expected thermal dissipation in the target application environment.

Single Zener Diodes Part Context

This part belongs to the widely recognized 1N52xx series of 500 mW Zener diodes. The series provides a broad spectrum of voltage options in a compact glass axial package. The 1N5248 variant specifically targets the 18 V segment of this established regulatory lineup.

Single Zener Diodes Replacement Considerations

Compatible substitutes include the 1N5248B without the e3/TR suffixes if packaging differences are acceptable. Other manufacturers offering equivalent 18 V, 500 mW axial Zener diodes may serve as functional alternatives provided pinout and electrical parameters align.