1N5277/TR

Single Zener Diodes Overview

The Microchip Technology 1N5277/TR is a single silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 160 V with a 5% tolerance, housed in a DO-35 axial leaded package. The device dissipates up to 500 mW and operates within a temperature range of -65°C to +175°C. Key electrical characteristics include a maximum reverse leakage current of 100 nA, a Zener impedance of 1.7 kOhms, and a positive voltage temperature coefficient of 0.11%/°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Utilizes glass axial-leaded construction for environmental durability
• Features a positive voltage temperature coefficient suitable for specific compensation requirements

Single Zener Diodes Applications

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

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration against official datasheets to ensure compatibility with required screening levels or packaging formats. Confirm RoHS compliance status as standard variants may differ from lead-free options. Cross-reference manufacturer part numbers with distributor listings to validate authenticity and current production status before procurement.

Single Zener Diodes Selection Notes

Select this component when a precise 160 V regulation point is required with tight tolerance constraints. Consider the 500 mW power dissipation limit and the specific thermal management needs associated with the DO-35 package. Evaluate the 1.7 kOhm impedance value against circuit sensitivity requirements to ensure adequate performance under varying load conditions.

Single Zener Diodes Part Context

This component belongs to the 1N5221 through 1N5281B series of 0.5 W Zener Voltage Regulators. The series offers a wide selection of voltages from 2.4 to 200 volts in standard tolerances. The 1N5277 variant specifically addresses the 160 V segment of this lineup, providing a reliable solution for mid-to-high voltage regulation tasks in industrial and commercial electronics.

Single Zener Diodes Replacement Considerations

Equivalent parts within the same series include 1N5277A (10% tolerance) and 1N5277D (1% tolerance). Verify package compatibility and tolerance requirements when substituting. Military screening prefixes such as MQ, MX, MV, or MSP are available for enhanced reliability specifications.