1N4100-1

Single Zener Diodes Overview

The Microchip Technology 1N4100-1 is a 500 mW metallurgically bonded glass Zener diode in an axial-lead DO-35 package. It provides a nominal Zener voltage of 7.5 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 5.7 µA at the specified voltage. Electrical characteristics include a test current of 250 µA, dynamic impedance of 200 Ohms, and a positive temperature coefficient of +0.065 %/°C.

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.
• Low noise density performance suitable for precision regulation applications.

Single Zener Diodes Applications

• Voltage regulation in harsh environments requiring radiation hardness.
• Precision reference circuits utilizing low noise characteristics.
• High-reliability aerospace and defense electronic systems.

Single Zener Diodes Procurement Notes

Verify the specific reliability level (JAN, JANTX, JANTXV, or JANS) required for the application, as qualification levels differ. Confirm RoHS compliance status if applicable, noting that commercial versions may vary. Ensure the ordering suffix matches the desired tolerance and packaging configuration before finalizing procurement.

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 to ensure operation remains within the 500 mW dissipation limit.

Single Zener Diodes Part Context

This part belongs to the 1N4099-1 through 1N4135-1 series of 500 mZener diodes. These devices are JEDEC registered and offer voltages from 1.8 V to 100 V. The series supports various tolerance options including 5%, 2%, and 1%, catering to diverse precision requirements across military and industrial sectors.

Single Zener Diodes Replacement Considerations

Direct substitutes include other 1N4100 variants from different manufacturers meeting MIL-PRF-19500/435 specifications. Verify pinout compatibility and package dimensions (DO-35) for mechanical fit. Ensure electrical parameters such as Zener voltage, impedance, and leakage current align with design constraints.