1N4114-1

Single Zener Diodes Overview

The Microchip Technology 1N4114-1 is a 500 mW metallurgically bonded glass Zener diode in an axial-lead DO-35 (DO-204AH) package. It provides a nominal Zener voltage of 20 V with a standard tolerance of ±5%. The device operates within a junction and storage temperature range of -65°C to +175°C. Key electrical characteristics include a maximum dynamic impedance of 150 Ohms, a reverse leakage current of 10 nA at 15.2 V, and a forward voltage of 1.1 V at 200 mA.

Single Zener Diodes Feature Summary

• Hermetically sealed construction using internal metallurgical bonding for high reliability.
• Qualified per MIL-PRF-19500/435 standards for JAN, JANTX, JANTXV, and JANS levels.
• Inherently radiation hard as described in Microsemi MicroNote 050.
• Non-sensitive to electrostatic discharge per MIL-STD-750 method 1020.

Single Zener Diodes Applications

• High-reliability aerospace and defense voltage regulation
• Military-grade power supply reference circuits
• Harsh environment electronic systems requiring radiation hardness

Single Zener Diodes Procurement Notes

Verify the specific reliability level required, such as JAN, JANTX, or JANS, as these designations affect qualification standards and availability. Confirm RoHS compliance status, noting that commercial versions may differ from mil-qualified parts. Ensure the ordering suffix matches the desired packaging option, such as tape and reel variants indicated by a TR suffix. Validate that the component meets the specific environmental testing requirements of the target application before procurement.

Single Zener Diodes Selection Notes

Select this component when a robust, hermetically sealed Zener regulator is needed for extreme temperature environments up to 175°C. The 20 V rating suits applications requiring stable references in that range. Consider the low noise density characteristic for sensitive analog circuits. Verify that the axial lead format fits the mechanical constraints of the PCB layout and that the 500 mW power dissipation capability aligns with the thermal design of the system.

Single Zener Diodes Part Context

This part belongs to the 1N4099-1 through 1N4135-1 series of 500 mW Zener diodes manufactured by Microchip Technology. These devices are JEDEC registered and designed for high-reliability applications. The series offers a wide selection of voltages from 1.8 to 100 V with various tolerance options, all sharing the same DO-35 glass package and metallurgical bond construction for consistent performance across the product line.

Single Zener Diodes Replacement Considerations

Public confirmed substitute part numbers include JANS1N4114-1, JANTX1N4114-1, and JANS1N4114C-1.

Single Zener Diodes FAQ

What is the maximum noise density specification for the 1N4114-1?

The maximum noise density is specified as 40 μV/√Hz at the test current IZT.

How is the polarity indicated on the 1N4114-1 package?

Polarity is indicated by a band on the diode; the banded end represents the cathode.