1N5268B/TR

Single Zener Diodes Overview

The Microchip Technology 1N5268B/TR is a 0.5 W glass axial-lead Zener diode in the DO-35 package, featuring an 82 V nominal voltage with ±5% tolerance (B suffix). It operates from -65°C to +175°C and includes a tape-and-reel option (TR suffix) per EIA-296 standards. Key electrical parameters include a maximum reverse current of 59 μA at 49 V, a Zener impedance of 59 Ω at 0.25 mA, and a temperature coefficient of +0.098 %/°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features minimal capacitance for high-frequency applications
• Inherently radiation hard and non-sensitive to electrostatic discharge

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection systems
• General-purpose voltage regulation

Single Zener Diodes Procurement Notes

Verify that the part number includes the TR suffix to confirm tape-and-reel packaging compliance with EIA-296 standards. Ensure the B suffix is present to guarantee the required ±5% voltage tolerance. Confirm the manufacturer origin matches the specified datasheet documentation before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a precise 82 V regulation point is required within a standard DO-35 footprint. The B suffix ensures tighter manufacturing tolerances compared to standard A suffix devices. Verify that the application environment remains within the specified -65°C to +175°C operating temperature range for optimal performance.

Single Zener Diodes Part Context

This device belongs to the 1N5221 through 1N5281B series of 0.5 W Zener Voltage Regulators. These components are JEDEC registered and utilize hermetically sealed glass axial-lead packages. The series provides a wide selection of voltages from 2.4 V to 200 V with various tolerance options.

Single Zener Diodes Replacement Considerations

Equivalent surface mount versions are available as MLL5268B in the DO-213AA MELF style package. RoHS compliant equivalents can be identified by adding the e3 suffix to the base part number.