1N4122UR-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N4122UR-1/TR is a hermetically sealed glass surface mount Zener diode in the DO-213AA (MLL34) package. It provides a nominal Zener voltage of 36V with a standard tolerance of ±5%. The device operates at a test current of 250µA and features a maximum dynamic impedance of 200Ω. Rated for 0.5W steady-state power dissipation, it supports an operating temperature range from -65°C to +175°C. The 'TR' suffix indicates tape and reel packaging.

Single Zener Diodes Feature Summary

• Hermetically sealed glass MELF-style package
• Internal metallurgical bond construction
• Radiation hard design
• ESD insensitive per MIL-STD-750 Method 1020

Single Zener Diodes Applications

• Voltage regulation in harsh environments
• Reference voltage sources
• Protection circuits requiring radiation hardness

Single Zener Diodes Procurement Notes

Verify that the specific part number includes the '-1' suffix for internal metallurgical bonding and the 'TR' suffix for tape and reel packaging. Confirm RoHS compliance status as the base UR series may differ from e3 variants. Ensure the supplier documentation matches the Microsemi Scottsdale Division datasheet specifications for this military-grade component.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed, radiation-hardened Zener diode is required for high-reliability applications. The DO-213AA package offers a surface-mount alternative to axial leads while maintaining environmental sealing. Consider the 36V nominal voltage and 200Ω impedance characteristics against circuit requirements.

Single Zener Diodes Part Context

This part belongs to the 1N4099UR through 1N4135UR series of 0.5-watt glass surface mount Zeners. It serves as the surface-mount equivalent to JEDEC registered axial-leaded devices. The manufacturer is Microchip Technology (formerly Microsemi), specifically the Scottsdale Division.

Single Zener Diodes Replacement Considerations

JANS1N4122-1

Single Zener Diodes FAQ

What does the '-1' suffix indicate?

The '-1' suffix denotes an internal metallurgical bond option available for this series.

Is the device sensitive to electrostatic discharge?

No, the device is nonsensitive to ESD per MIL-STD-750 Method 1020.