1N4116/TR

Single Zener Diodes Overview

The Microchip Technology 1N4116/TR is a 500 mW metallurgically bonded glass Zener diode in the axial-lead DO-35 package. It provides a nominal Zener voltage of 24 V with a maximum dynamic impedance of 150 Ohms and a maximum reverse current of 18.3 µA at test current IZT of 250 µA. The device operates within a junction temperature range of -65 °C to +175 °C, features a positive temperature coefficient of +0.090 %/°C, and includes a tape-and-reel option indicated by the TR suffix.

Single Zener Diodes Feature Summary

• Hermetically sealed axial-lead glass construction with internal metallurgical bonding for high reliability.
• Capable of regulating voltage across broad ranges of current and temperature variations.
• Inherently radiation hard and non-sensitive to electrostatic discharge per MIL-STD-750 method 1020.

Single Zener Diodes Applications

• Voltage regulation in aerospace and defense circuits requiring JANS or JAN qualification.
• Precision reference applications utilizing low noise density characteristics.
• High-reliability industrial systems operating under extreme thermal conditions.

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required reliability level (JAN, JANTX, JANTXV, or JANS) and RoHS compliance status. Confirm the presence of the TR suffix indicates tape-and-reel packaging rather than bulk supply. Ensure the requested part number aligns with the manufacturer's current production specifications and availability constraints.

Single Zener Diodes Selection Notes

Select this component when a 24 V Zener reference with low dynamic impedance is required in an axial-lead form factor. Consider the positive temperature coefficient for thermal stability requirements. Evaluate the 500 mW power dissipation limit against the expected load current and ambient operating temperature to ensure safe derating margins are maintained.

Single Zener Diodes Part Context

This device belongs to the 1N4099 through 1N4135 series of 500 mW Zener diodes manufactured by Microchip Technology. These components are JEDEC registered and qualified per MIL-PRF-19500/435 standards. The series offers extensive voltage selection from 1.8 V to 100 V with various tolerance options including standard 5%, 2%, and 1% grades.

Single Zener Diodes Replacement Considerations

Direct substitutes include other manufacturers' 1N4116 variants meeting identical electrical parameters and DO-35 mechanical dimensions. Cross-reference with MIL-PRF-19500/435 qualified parts if military-grade reliability is mandatory. Verify pinout polarity and lead spacing compatibility before integration into existing designs.

Single Zener Diodes FAQ

What is the maximum noise density specified for the 1N4116?

The maximum noise density is 40 μV/√Hz at the specified test current of 250 μA.

How does the Zener voltage change with temperature?

The device exhibits a positive temperature coefficient of +0.090 %/°C for the 24 V nominal voltage.