1N4111/TR

Single Zener Diodes Overview

The Microchip Technology 1N4111/TR is a 500 mW metallurgically bonded glass Zener diode with a nominal voltage of 17 V. It operates in the axial-lead DO-35 package and features a test current of 250 µA, maximum impedance of 100 Ohms, and reverse current of 40 µA. The device supports a temperature range from -65°C to +175°C and includes a tape-and-reel option indicated by the TR suffix.

Single Zener Diodes Feature Summary

• Internal metallurgical bond for structural integrity
• Hermetically sealed glass DO-35 package construction
• Low noise density characteristics suitable for precision regulation

Single Zener Diodes Applications

• Voltage regulation across broad current ranges
• Temperature-compensated reference circuits
• High reliability military and aerospace applications

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required qualification level and packaging format. Confirm RoHS compliance status if environmental regulations apply, as commercial versions may differ from qualified levels. Ensure the supplier provides documentation confirming the metallurgical bond and JEDEC registration details.

Single Zener Diodes Selection Notes

Select this component when a 17 V Zener voltage with 5% tolerance is required in an axial-lead configuration. Consider the 500 mW power dissipation limit and derating curves for thermal management. Evaluate the low noise density specification against circuit sensitivity requirements for optimal performance.

Single Zener Diodes Part Context

This part belongs to the 1N4099 through 1N4135 series of 500 mZener regulators. These devices are available in various tolerance grades including 5%, 2%, and 1%. The series offers extensive voltage selection from 1.8 V to 100 V and supports multiple qualification levels up to JANS for demanding environments.

Single Zener Diodes Replacement Considerations

Equivalent parts within the same series include 1N4110-1 and 1N4112-1. Verify that any substitute maintains the same 17 V nominal voltage, 500 mW power rating, and DO-35 package dimensions to ensure mechanical and electrical compatibility.