1N5246A

Single Zener Diodes Overview

The Microchip Technology 1N5246A 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 ±10% tolerance (suffix A). The device operates at a test current of 7.8 mA and exhibits a maximum reverse leakage current of 100 µA at 11.4 V. Key electrical parameters include a Zener impedance of 17 Ohms, a forward voltage of 1.5 V max at 200 mA, and a temperature coefficient of +0.083 %/°C. It supports an operating temperature range from -65°C to +175°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features minimal capacitance for high-frequency applications
• Inherently radiation hard per MicroNote 050
• Non-sensitive to electrostatic discharge

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• Clamping applications

Single Zener Diodes Procurement Notes

Verify the specific suffix 'A' indicates the required 10% tolerance. Confirm RoHS compliance status by checking for the 'e3' suffix if lead-free material is mandatory. Ensure the ordering part number matches the exact JEDEC type designation to guarantee correct electrical characteristics and package dimensions.

Single Zener Diodes Selection Notes

Select this component when a 16 V regulation point is needed within a 500 mW power dissipation limit. The DO-35 through-hole package facilitates standard PCB mounting. Consider the positive temperature coefficient for thermal stability requirements. Verify that the 100 µA reverse leakage specification meets the circuit's isolation needs.

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. Standard tolerances are available with 'A' (±10%) or 'B' (±5%) suffixes. Tighter tolerances are offered with 'C' or 'D' suffixes.

Single Zener Diodes Replacement Considerations

Equivalent parts include the 1N5246B for tighter 5% tolerance or the 1N5246 for standard 20% tolerance. Surface mount equivalents are available in the MLL5246 MELF package.