1N4114UR-1

Single Zener Diodes Overview

The Microchip Technology 1N4114UR-1 is a 500 mW metallurgically bonded glass surface mount Zener diode in the DO-213AA package. It provides a nominal Zener voltage of 20 V with a standard tolerance of ±5%. The device operates within a junction temperature range of -65 °C to +175 °C and features a maximum reverse current of 15.2 µA at the specified voltage. Electrical characteristics include a test current of 250 µA, a dynamic impedance of 150 Ohms, and a noise density of 40 µV/√Hz.

Single Zener Diodes Feature Summary

• Hermetically sealed glass DO-213AA MELF style package with internal metallurgical bond
• Qualified per MIL-PRF-19500/435 for JAN, JANTX, JANTXV, and JANS reliability levels
• Inherently radiation hard design suitable for high-reliability applications
• Non-sensitive to electrostatic discharge (ESD) per MIL-STD-750 method 1020

Single Zener Diodes Applications

• Voltage regulation over broad ranges of current and temperature
• High-reliability aerospace and defense electronics
• Radiation-hardened circuit protection

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required military qualification level (JAN, JANTX, JANTXV, or JANS). Confirm RoHS compliance status, as commercial versions may differ from qualified military grades. Ensure the package type corresponds to the DO-213AA specification and check for tape and reel availability if required by assembly processes.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed surface mount Zener diode with radiation hardness is required. The 20 V nominal voltage and ±5% tolerance suit standard regulation needs. Consider the 500 mW power dissipation rating and thermal resistance values for heat management. Verify compatibility with MIL-PRF-19500/435 screening requirements for the target application environment.

Single Zener Diodes Part Context

This device belongs to the 1N4099UR-1 through 1N4135UR-1 series of 500 mZener regulators. It serves as the surface mount equivalent to the axial-leaded 1N4114-1. The series offers voltages from 1.8 to 100 V with various tolerance options. It is constructed using metallurgical bonding techniques to ensure durability in harsh environments.

Single Zener Diodes Replacement Considerations

The axial-leaded 1N4114-1 is a parameter-equivalent alternative. Commercial equivalents include CDLL4114-1. For higher reliability levels, consider JAN1N4114-1, JANTX1N4114-1, JANTXV1N4114-1, or JANS1N4114-1.