1N4113UR-1

Single Zener Diodes Overview

The 1N4113UR-1 is a surface-mount silicon Zener diode manufactured by Microchip Technology. It features a nominal Zener voltage of 19 V with a tolerance of ±5%. The device operates in the DO-213AA (SMA) package and supports a maximum power dissipation of 500 mW. Key electrical characteristics include a Zener impedance of 150 ohms and a maximum reverse leakage current of 50 nA at 14.5 V. The component is rated for an operating temperature range from -65 °C to +175 °C.

Single Zener Diodes Feature Summary

• Designed as a low noise voltage regulator for precision applications
• Utilizes round-end construction for stable regulation characteristics
• Capable of operation in high-temperature environments up to 175 °C

Single Zener Diodes Applications

• Voltage reference circuits requiring low noise performance
• Precision voltage regulation in surface-mount designs
• Temperature-compensated biasing networks

Single Zener Diodes Procurement Notes

Verify the manufacturer designation, specifically confirming Microchip Technology or its predecessor Microsemi, as part numbers may appear under different corporate branding. Ensure the suffix UR-1 corresponds to the specific SMA surface-mount package variant. Cross-reference datasheet parameters such as Zener impedance and leakage current against your design requirements to ensure compatibility with strict low-noise specifications.

Single Zener Diodes Selection Notes

Select this component when a 19 V Zener voltage is required in a compact surface-mount form factor. The 500 mW power rating suits moderate current applications. Consider the 150 ohm impedance value for circuit stability analysis. Verify that the ±5% voltage tolerance meets the precision needs of the target application before finalizing the design.

Single Zener Diodes Part Context

This device belongs to the 1N411x series of glass-passivated silicon Zener diodes originally developed by Microsemi Corporation. The series is characterized by low noise performance and robust construction suitable for demanding electronic environments. The UR-1 suffix denotes the specific surface-mount packaging configuration within the broader product family.

Single Zener Diodes Replacement Considerations

Direct substitutes include the 1N4113U and 1N4113UR variants. Verify pinout compatibility and package dimensions when replacing with generic equivalents. Ensure replacement parts meet the same 19 V nominal voltage and 500 mW power dissipation ratings.