1N5258B

Single Zener Diodes Overview

The Microchip Technology 1N5258B is a 0.5 W glass axial-lead Zener diode in the DO-35 package. It provides a nominal Zener voltage of 36 V with a ±5% tolerance (B suffix). Key electrical parameters include a maximum reverse leakage current of 100 nA at 27 V, a Zener impedance of 70 Ohms at a test current of 3.4 mA, and a forward voltage of 1.1 V. The device operates within a temperature range of -65°C to +200°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features flexible axial-lead mounting terminals for through-hole integration
• Inherently radiation hard per MicroNote 050 specifications
• Non-sensitive to electrostatic discharge (ESD) as verified by MIL-STD-750 Method 1020

Single Zener Diodes Applications

• Voltage regulation circuits requiring 36 V reference
• Protection against overvoltage transients
• General-purpose electronic equipment power supplies

Single Zener Diodes Procurement Notes

Verify the specific manufacturer source, as this part number appears under both Microsemi and Microchip Technology due to corporate acquisition history. Confirm RoHS compliance status by checking for the 'e3' suffix if required. Ensure the ordering documentation matches the intended screening level and packaging format, such as bulk or tape and reel options.

Single Zener Diodes Selection Notes

Select this component when a standard 36 V Zener voltage with tight 5% tolerance is required. The DO-35 glass axial package suits applications needing robust thermal performance up to 200°C. Consider the 70 Ohm impedance for dynamic load requirements. Verify that the 500 mW power dissipation rating aligns with the circuit's thermal design constraints.

Single Zener Diodes Part Context

This device belongs to the popular 1N5221 through 1N5281B series of 0.5 W Zener Voltage Regulators. The series offers a wide selection from 2.4 to 200 volts. The 1N5258B specifically targets the mid-range voltage segment, utilizing the standard JEDEC registered type numbering system for identification.

Single Zener Diodes Replacement Considerations

Public confirmed substitute part numbers: 1N5258B-T, CDLL5258B, 1N5258BUR-1.