1N5272B/TR

Single Zener Diodes Overview

The Microchip Technology 1N5272B/TR is a 0.5 W glass axial-lead Zener diode in the DO-35 package, featuring an 110 V nominal breakdown voltage with ±5% tolerance. It operates within a -65°C to +175°C temperature range and exhibits a maximum reverse leakage current of 100 nA at 90 V. The device has a Zener impedance of 750 Ohms at a test current of 1.1 mA and a positive temperature coefficient of +0.110 %/°C. The 'TR' suffix indicates tape-and-reel packaging compliant with EIA-296 standards.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features hermetically sealed glass axial-lead construction for durability
• Offers flexible mounting terminals compatible with standard through-hole processes

Single Zener Diodes Applications

• Voltage reference circuits requiring high stability
• Overvoltage protection in sensitive electronic systems
• Clamping applications in signal processing paths

Single Zener Diodes Procurement Notes

Verify that the ordering suffix matches the required packaging configuration, as the TR designation specifically denotes tape-and-reel supply rather than bulk units. Confirm RoHS compliance status if environmental regulations apply, noting that e3 suffixes indicate lead-free plating. Ensure the specific B suffix is selected for the required five percent voltage tolerance rather than the standard ten percent option.

Single Zener Diodes Selection Notes

Select this component when a precise 110 V regulation point is necessary within a compact axial-lead form factor. Consider the thermal resistance characteristics and derating curves for power dissipation limits above ambient temperatures. Evaluate the Zener impedance value against the dynamic load requirements of the target circuit design to ensure adequate performance under varying current conditions.

Single Zener Diodes Part Context

This part belongs to the extensive 1N5221 through 1N5281B series of 0.5 watt Zener Voltage Regulators manufactured by Microsemi's Scottsdale Division. The series provides a wide selection of voltages from 2.4 to 200 volts in standard JEDEC registered formats. These devices are widely utilized in general-purpose electronics where reliable voltage clamping and reference functions are required.

Single Zener Diodes Replacement Considerations

Direct substitutes include other manufacturers' 1N5272 equivalents meeting identical electrical specifications. Cross-reference with MLL5272B surface mount variants if board space constraints require MELF package conversion while maintaining similar regulatory characteristics.