1N5222A

Single Zener Diodes Overview

The Microchip Technology 1N5222A is a 0.5-watt glass axial-lead Zener diode housed in a DO-35 (DO-204AH) package. It provides a nominal Zener voltage of 2.5V with a standard tolerance of ±10%. The device operates within a temperature range of -65°C to +175°C and features a maximum reverse current of 100µA at 1V. Electrical characteristics include a maximum Zener impedance of 30 Ohms at a test current of 20mA, a forward voltage of 1.5V maximum at 200mA, and a thermal resistance of 250°C/W junction to lead.

Single Zener Diodes Feature Summary

• Hermetically sealed glass axial-lead construction for durability
• Inherently radiation hard per MicroNote 050
• Minimal capacitance suitable for high-frequency applications
• Non-sensitive to electrostatic discharge

Single Zener Diodes Applications

• Voltage regulation over broad operating currents
• Reference voltage sources in electronic circuits
• Protection against voltage transients

Single Zener Diodes Procurement Notes

Verify the specific suffix 'A' indicates the required ±10% tolerance. Confirm the package type matches the DO-35 specification. Ensure the manufacturer source aligns with Microchip Technology or authorized Microsemi Scottsdale Division documentation. Check RoHS compliance status if environmental regulations apply to the assembly process.

Single Zener Diodes Selection Notes

Select this component when a 2.5V reference with moderate precision is needed. The DO-35 package supports through-hole mounting. Consider tighter tolerance variants like the 1N5222B or 1N5222C if stricter voltage limits are required. Evaluate power derating curves for high-temperature environments exceeding 50°C.

Single Zener Diodes Part Context

This part belongs to the 1N5221 through 1N5281B series of 0.5-watt Zener Voltage Regulators. The series offers voltages from 2.4V to 200V. Variants exist with different tolerances identified by suffix letters. Military screening levels are available via prefix identifiers such as MX or MQ.

Single Zener Diodes Replacement Considerations

The 1N5222 is listed as a parameter-equivalent substitute.