1N4115UR-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N4115UR-1/TR is a 22V Zener voltage regulator with a 500 mW power rating, housed in a surface mount glass DO-213AA package. It features an internal metallurgical bond and operates within a temperature range of -65°C to +175°C. The device exhibits a nominal impedance of 150 Ohms at a test current of 250 µA, with a maximum noise density of 40 µV/√Hz. Standard tolerance is ±5%, and it includes a tape and reel option for automated assembly.

Single Zener Diodes Feature Summary

• Hermetically sealed glass DO-213AA MELF style package
• Internal metallurgical bond construction
• Qualified per MIL-PRF-19500/435 standards
• Inherently radiation hard design

Single Zener Diodes Applications

• Voltage regulation over broad current and temperature ranges
• High reliability applications requiring JANS qualification
• Radiation-hardened circuit designs

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration against official datasheets to confirm RoHS compliance status and screening level. Confirm that the TR suffix indicates tape and reel packaging as specified in the mechanical section. Ensure compatibility with MIL-PRF-19500/435 requirements if high-reliability performance is necessary for the intended application.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed surface mount Zener diode is required for harsh environments. The internal metallurgical bond provides enhanced reliability compared to standard packages. Consider the 500 mW dissipation capability and wide operating temperature range for circuits demanding stable voltage reference under thermal stress.

Single Zener Diodes Part Context

This part belongs to the 1N4099UR-1 through 1N4135UR-1 series of 500 mW metallurgically bonded glass Zener diodes. It serves as the surface mount equivalent to the JEDEC registered axial-leaded 1N4115-1 series. The device offers extensive voltage selection from 1.8 to 100 volts with various tolerance options available across the family.

Single Zener Diodes Replacement Considerations

The axial-leaded 1N4115-1 is the direct package equivalent. Commercial versions may use the CDLL4115-1 prefix. Verify that any substitute maintains the DO-213AA footprint and metallurgical bond characteristics for equivalent reliability.