1N4105-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N4105-1/TR is a 500 mW Zener voltage regulator featuring an internal metallurgical bond and hermetically sealed glass DO-35 axial-lead package. It provides an 11 V nominal Zener voltage with a maximum dynamic impedance of 0.05 Ohms at a test current of 250 µA. The device operates within a junction temperature range of -65°C to +175°C, supports a maximum reverse leakage current of 8.5 µA, and exhibits a noise density of 40 µV/√Hz.

Single Zener Diodes Feature Summary

• Internal metallurgical bond construction for high reliability
• Hermetically sealed glass DO-35 axial-lead package
• Low noise density characteristics suitable for precision regulation

Single Zener Diodes Applications

• Voltage regulation in military and aerospace systems
• High-reliability electronic circuits requiring radiation hardness
• Precision reference voltage generation in harsh environments

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration against official documentation to confirm RoHS compliance status and exact qualification level (JAN, JANTX, JANTXV, or JANS). Ensure the ordering information matches the required tolerance and packaging specifications before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed, low-noise Zener diode is required for high-reliability applications. The 11 V rating and 500 mW power dissipation capability make it suitable for stable voltage regulation in demanding thermal and environmental conditions.

Single Zener Diodes Part Context

This part belongs to the 1N4099-1 through 1N4135-1 series of 500 mW metallurgically bonded glass Zener diodes. These devices are qualified per MIL-PRF-19500/435 and are designed for high-reliability applications including space and defense electronics where radiation hardness and long-term stability are critical.

Single Zener Diodes Replacement Considerations

Compatible substitutes include other 1N4105 variants from different manufacturers that meet the same electrical specifications and package dimensions. Verify compatibility with MIL-PRF-19500/435 requirements if radiation hardening is necessary.

Single Zener Diodes FAQ

What is the maximum noise density for the 1N4105-1?

The maximum noise density is specified as 40 µV/√Hz.

Is the 1N4105-1 inherently radiation hard?

Yes, the device is described as inherently radiation hard in accordance with Microsemi MicroNote 050.