1N4100C

Single Zener Diodes Overview

The Microchip Technology 1N4100C 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 tight 2% tolerance, as indicated by the 'C' suffix. The device operates within a temperature range of -65 °C to +175 °C and features a maximum reverse current of 5.7 µA at the specified test current of 250 µA.

Single Zener Diodes Feature Summary

• Hermetically sealed construction using an internal metallurgical bond for high reliability.
• Low noise density performance suitable for precision regulation applications.
• Available in multiple qualification levels including JAN, JANTX, JANTXV, and JANS.

Single Zener Diodes Applications

• Voltage regulation in aerospace and defense circuits
• Precision reference voltage sources
• High-reliability industrial power supplies

Single Zener Diodes Procurement Notes

Verify that the ordering suffix 'C' corresponds to the required 2% voltage tolerance rather than the standard 5%. Confirm the specific reliability level (JAN, JANTX, or JANS) matches the project's radiation and quality requirements. Ensure the package style aligns with the design constraints.

Single Zener Diodes Selection Notes

Select this component when a precise 7.5 V reference is needed with tighter tolerance than standard variants. Consider the low noise density for sensitive analog sections. Evaluate the thermal derating curve if operating near the maximum power dissipation limit in enclosed environments.

Single Zener Diodes Part Context

This part belongs to the 1N4099 through 1N4135 series of 500 mW Zener diodes. These devices are JEDEC registered and qualified per MIL-PRF-19500/435. The series covers a wide voltage range from 1.8 V to 100 V, offering various tolerance options for different circuit precision needs.

Single Zener Diodes Replacement Considerations

Standard 1N4100-1 parts offer 5% tolerance. For identical electrical characteristics but potentially different packaging, check for surface mount equivalents like the 1PMT4100 series. Verify lead compatibility for direct replacement in existing through-hole designs.

Single Zener Diodes FAQ

What does the 'C' suffix indicate in the 1N4100C part number?

The 'C' suffix denotes a Zener voltage tolerance of 2%, which is tighter than the standard 5% tolerance found in the base 1N4100-1 model.

Is the 1N4100C radiation hard?

Yes, the device family is inherently radiation hard as described in Microsemi MicroNote 050, particularly when ordered in JANS or JANTXV qualification levels.