1N4104UR/TR

Single Zener Diodes Overview

The Microchip Technology 1N4104UR/TR is a 0.5-watt glass surface mount Zener voltage regulator in the DO-213AA package. It provides a nominal Zener voltage of 10 V with a standard tolerance of ±5%. The device operates within a temperature range of -65°C to +175°C and features a maximum reverse current of 7.60 μA at test conditions. Electrical characteristics include a Zener impedance of 0.5 Ω, a test current of 250 μA, and a typical voltage temperature coefficient of 0.055 %/°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass DO-213AA (MELF style) surface mount package
• Internal metallurgical bond construction for high reliability
• Minimal capacitance suitable for high-frequency applications
• Inherently radiation hard design

Single Zener Diodes Applications

• Voltage regulation in broad operating current ranges
• Reference voltage sources in electronic circuits
• Protection against overvoltage transients

Single Zener Diodes Procurement Notes

Verify that the ordering suffix TR indicates tape and reel packaging per EIA-481-1-A standards. Confirm RoHS compliance via the e3 suffix if required. Ensure the specific voltage tolerance matches the standard 5% specification unless a tighter tolerance suffix is explicitly ordered. Cross-reference the manufacturer part number with the industry equivalent 1N4104.

Single Zener Diodes Selection Notes

Select this component when a surface mount Zener diode with hermetic sealing is required. The DO-213AA package offers a compact footprint compared to axial leads. Consider the thermal resistance of 300ºC/W junction to ambient when designing PCB layouts on FR4 material. Verify that the 0.5-watt power dissipation rating meets the circuit's steady-state requirements.

Single Zener Diodes Part Context

This device belongs to the 1N4099UR through 1N4135UR series of 0.5-watt glass surface mount Zeners. It serves as the surface mount equivalent to the JEDEC registered 1N4099 through 1N4135 axial-leaded series. The product line includes variants with different voltage tolerances and military qualifications available via separate suffixes.

Single Zener Diodes Replacement Considerations

The 1N4104UR is the surface mount equivalent of the 1N4104 axial leaded diode. For higher reliability needs, consider the 1N4104UR-1 variant which features an internal metallurgical bond and military qualification options.