1N5246B (DO-35)

Single Zener Diodes Overview

The Microsemi Corporation 1N5246B is a 0.5 W glass axial-lead Zener diode in the DO-35 package. It provides a nominal Zener voltage of 16 V with a standard tolerance of ±5%. The device operates within a temperature range of -65°C to +175°C and features a maximum reverse current of 100 µA at 14 V. Electrical characteristics include a test current of 7.8 mA, a maximum Zener impedance of 17 Ω, and a positive voltage temperature coefficient of +0.083 %/°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass axial-lead construction for reliable operation
• Standardized JEDEC registration ensuring broad compatibility
• Capable of regulating voltage across wide operating current and temperature ranges
• Inherently radiation hard per MicroNote 050

Single Zener Diodes Applications

• Voltage regulation circuits requiring stable reference levels
• Protection against overvoltage transients in sensitive electronics
• Clamping applications in signal processing paths

Single Zener Diodes Procurement Notes

Verify that the specific part number matches the required suffix (e.g., B for 5% tolerance) and prefix if military screening is needed. Confirm RoHS compliance status by checking for the e3 suffix on ordering information. Ensure the supplier provides official datasheets from Microsemi or authorized distributors to validate electrical parameters before integration into designs.

Single Zener Diodes Selection Notes

Select this component when a precise 16 V reference is needed in a through-hole design. The DO-35 package suits manual assembly or standard wave soldering processes. Consider the positive temperature coefficient for thermal stability requirements. Evaluate power derating curves if ambient temperatures exceed 50°C to maintain safe operating limits.

Single Zener Diodes Part Context

This device 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 V to 200 V. Variations in the series utilize different suffixes to denote tighter tolerances or surface mount equivalents like the MLL5221 series.

Single Zener Diodes Replacement Considerations

Equivalent parts include other manufacturers' 1N5246B variants meeting the same JEDEC specifications. Surface mount replacements are available in the MLL5246B series using the DO-213AA MELF package.