1N5270B/TR

Single Zener Diodes Overview

The Microchip Technology 1N5270B/TR is a 91 V Zener diode with a ±5% voltage tolerance, housed in a DO-35 glass axial-lead package. It dissipates up to 500 mW at 25°C and operates from -65°C to +175°C. The device features a maximum reverse current of 66 μA at 66 V and a Zener impedance of 2300 Ω at 0.25 mA. 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 environmental durability
• Offers minimal capacitance characteristics suitable for high-frequency applications
• Includes internal metallurgical bonds for enhanced structural integrity

Single Zener Diodes Applications

• Precision voltage reference circuits
• Overvoltage protection networks
• Voltage regulator power supplies

Single Zener Diodes Procurement Notes

Verify the specific manufacturer origin, as the datasheet originates from Microsemi while the model number is assigned to Microchip Technology. Confirm that the 'TR' suffix strictly denotes tape-and-reel packaging per EIA-296 standards. Ensure compliance requirements match the original JEDEC registration specifications provided in the documentation.

Single Zener Diodes Selection Notes

Select this component when a 91 V breakdown voltage with tight ±5% tolerance is required. The DO-35 package supports through-hole mounting, while the 'TR' suffix facilitates automated surface-mount assembly processes. Consider the 500 mW power dissipation limit and thermal derating curves for high-temperature environments.

Single Zener Diodes Part Context

This part belongs to the 1N5221 through 1N5281B series of 0.5 W Zener voltage regulators. The series covers a wide voltage selection from 2.4 V to 200 V. The B suffix specifically identifies devices manufactured with standard 5% voltage tolerances, distinguishing them from A (10%), C (2%), or D (1%) variants.

Single Zener Diodes Replacement Considerations

Equivalent parts include the 1N5270 without the TR suffix for bulk packaging, or the 1N5270A for 10% tolerance applications. Surface mount equivalents are available in the MLL5270 series within the DO-213AA MELF package style.