1N5226A

Single Zener Diodes Overview

The Microchip Technology 1N5226A is a 0.5 W glass axial-lead Zener diode in the DO-35 package. It provides a nominal Zener voltage of 3.3 V with a ±10% tolerance (suffix A). The device operates within a temperature range of -65°C to +175°C and features a maximum reverse current of 25 µA at 1.0 V, a Zener impedance of 28 Ω at 0.25 mA, and a voltage temperature coefficient of -0.070 %/°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass axial-lead construction
• Voltage regulation across broad operating ranges
• Minimal capacitance characteristics

Single Zener Diodes Applications

• Voltage regulation circuits
• Reference voltage generation
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify that the part number suffix 'A' corresponds to the required ±10% tolerance specification. Confirm the package type matches the DO-35 axial lead form factor. Ensure the manufacturer origin aligns with project requirements, as this component originates from the Microsemi Scottsdale Division lineage now under Microchip Technology.

Single Zener Diodes Selection Notes

Select this component for applications requiring a stable 3.3 V reference or regulation point. The low capacitance makes it suitable for high-speed switching environments where parasitic effects must be minimized. Verify thermal derating requirements if operating near the upper temperature limit.

Single Zener Diodes Part Context

This device belongs to the JEDEC registered 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 with various tolerance options identified by suffix letters.

Single Zener Diodes Replacement Considerations

Equivalent parts include the 1N5226B for tighter ±5% tolerance or the 1N5226 without a suffix for standard ±20% tolerance. Surface mount equivalents are available in the MLL5221 series using the DO-213AA MELF package.

Single Zener Diodes FAQ

What is the voltage temperature coefficient for the 1N5226A?

The voltage temperature coefficient is -0.070 %/°C.

How is polarity indicated on the device?

Polarity is indicated by a band on the cathode end of the glass body.