1N4100-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N4100-1/TR is a 500 mW metallurgically bonded glass Zener diode in the axial-lead DO-35 package. It provides a nominal Zener voltage of 7.5 V with a test current of 250 µA and a maximum dynamic impedance of 200 Ohms. The device features a maximum reverse leakage current of 5.7 µA at the rated voltage, a noise density of 40 µV/√Hz, and a positive temperature coefficient of +0.065 %/°C. It operates within a junction temperature range of -65°C to +175°C.

Single Zener Diodes Feature Summary

• Internal metallurgical bond construction for high reliability
• Qualified per MIL-PRF-19500/435 standards
• Hermetically sealed glass DO-35 package
• Low noise density characteristics

Single Zener Diodes Applications

• Voltage regulation in harsh environments
• High-reliability aerospace circuits
• Military electronic systems
• Precision reference voltage sources

Single Zener Diodes Procurement Notes

Verify the specific reliability level (JAN, JANTX, JANTXV, or JANS) required for your application, as the base part number covers multiple qualification grades. Confirm RoHS compliance status if applicable, noting that commercial versions may differ from military qualifications. Ensure the TR suffix matches the tape and reel packaging requirement specified in the datasheet.

Single Zener Diodes Selection Notes

Select this component when a stable 7.5 V reference is needed in a through-hole axial package. Consider the positive temperature coefficient for thermal stability requirements. Evaluate the power derating curve for ambient temperature conditions exceeding 25°C. Verify that the 200 Ohm dynamic impedance meets the circuit's ripple rejection needs.

Single Zener Diodes Part Context

This device belongs to the 1N4099-1 through 1N4135-1 series of 500 mZener diodes manufactured by Microchip Technology. These components are designed for high-reliability applications requiring robust performance under extreme conditions. The series offers a wide range of voltage options within the same physical package form factor.

Single Zener Diodes Replacement Considerations

Direct replacements must match the 7.5 V Zener voltage, 500 mW power rating, and DO-35 package. Verify equivalent MIL-PRF-19500/435 qualification levels if operating in regulated environments. Check for matching impedance and leakage current specifications to ensure circuit compatibility.