1N4112UR/TR

Single Zener Diodes Overview

The Microchip Technology 1N4112UR/TR is a Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 18 V with a tight tolerance of 2%. The device operates in the DO-35-2 through-hole package and dissipates up to 500 mW of power. Key electrical characteristics include a maximum reverse leakage current of 50 nA and a Zener impedance of 100 ohms at a test current of 250 uA. It supports an extended operating temperature range from -65 C to +175 C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation within specified tolerances
• Constructed for high reliability in harsh environments
• Utilizes metallurgically bonded glass construction

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• Precision voltage regulation

Single Zener Diodes Procurement Notes

Verify the specific suffix UR-1/TR against official Microchip documentation to confirm surface mount or reel packaging details, as generic identifiers may vary. Ensure the procurement channel sources directly from authorized distributors to guarantee authenticity. Cross-reference the MIL-PRF-19500/435 qualification status if military-grade reliability is required for the application.

Single Zener Diodes Selection Notes

Select this component when a precise 18 V regulation point is needed with low leakage characteristics. The wide temperature range makes it suitable for aerospace or industrial environments. Compare the 100 ohm impedance against circuit requirements to ensure adequate regulation under load variations. Verify that the through-hole or surface mount variant matches the PCB design constraints.

Single Zener Diodes Part Context

This part belongs to the 1N4099UR-1 through 1N4135UR-1 series of 500 mZener diodes. These devices are qualified per MIL-PRF-19500/435 standards. They are available in various voltage ratings and tolerance levels, including 5%, 2%, and 1% options. The series utilizes a glass DO-213AA package for surface mount applications, offering robust performance for high-reliability systems.

Single Zener Diodes Replacement Considerations

Check for JANTX or JANTXV prefixed variants for equivalent performance with potentially different packaging or screening levels. Verify compatibility with other 18 V Zener diodes in the same power class, ensuring impedance and leakage specifications meet the original design requirements.