1N5999B/TR

Single Zener Diodes Overview

The Microchip Technology 1N5999B/TR is a 0.5 W Zener voltage regulator in an axial-lead DO-35 package, available in tape and reel format. It provides a nominal Zener voltage of 9.1 V with a 5% tolerance at a test current of 5 mA. The device features a maximum reverse leakage current of 100 nA and a dynamic impedance of 10 Ohms. It operates within a temperature range of -65°C to +175°C and exhibits a typical voltage temperature coefficient of 0.061 %/°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range.
• Features internal metallurgical bonds for high reliability.
• Offers flexible axial-lead mounting terminals for through-hole integration.

Single Zener Diodes Applications

• Voltage regulation in industrial circuits
• Power supply reference applications
• Protection against overvoltage conditions

Single Zener Diodes Procurement Notes

Verify the specific suffix 'TR' indicates tape and reel packaging rather than bulk. Confirm RoHS compliance status as commercial versions may differ from screened equivalents. Ensure the ordering quantity aligns with standard reel sizes provided by the manufacturer. Cross-reference the part number with official datasheets to validate electrical parameters before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a 9.1 V reference with 5% tolerance is required in a low-power application. The DO-35 package suits through-hole designs needing robust mechanical leads. Consider the 0.5 W power dissipation limit and derating curves for thermal management. Verify that the 10 Ohm dynamic impedance meets the circuit's noise and stability requirements.

Single Zener Diodes Part Context

This device belongs to the JEDEC registered 1N5985 through 1N6031 series of 0.5 watt Zener diodes. The series offers a wide selection of voltages from 2.4 to 200 volts with various tolerance options. These components are designed for general-purpose voltage regulation and protection in electronic systems requiring reliable performance.

Single Zener Diodes Replacement Considerations

Equivalent parts include other 9.1 V Zener diodes in DO-35 packages with similar power ratings and tolerances. Verify pinout compatibility and thermal characteristics when substituting. Check if the alternative component meets the same MIL-PRF-19500 screening levels if high reliability is required.

Single Zener Diodes FAQ

What is the maximum reverse leakage current for the 1N5999B?

The maximum reverse leakage current (IR) is specified as 100 nA at the rated Zener voltage.

Does the 1N5999B have a positive or negative temperature coefficient?

The 1N5999B has a positive typical voltage temperature coefficient of 0.061 %/°C.