LM336Z-5.0/NOPB

Overview

The LM336Z-5.0/NOPB is a precision shunt voltage reference diode manufactured by Texas Instruments, originally part of the National Semiconductor portfolio. It provides a stable 5.0V reference with an initial accuracy of ±1% and a temperature coefficient of 20 ppm/°C. The device operates within a current range of 600 µA to 10 mA and functions across temperatures from -40°C to +85°C. Packaged in a TO-92-3 through-hole case, it exhibits low dynamic impedance of 0.6Ω, ensuring reliable performance in industrial applications requiring precise voltage regulation.

Feature Summary

• Provides a fixed 5.0V precision reference voltage suitable for high-accuracy analog circuits
• Features low dynamic impedance for stable regulation under varying load conditions
• Includes a third terminal option to adjust reference voltage and minimize temperature drift
• Operates as both positive and negative voltage reference due to shunt topology

Applications

• Digital voltmeter reference sources
• Precision power supply regulation
• Operational amplifier circuit biasing

Procurement Notes

Verify that the ordering suffix /NOPB confirms lead-free and RoHS compliance status per current manufacturer specifications. Confirm package type remains TO-92-3 for through-hole mounting. Ensure the manufacturer designation aligns with Texas Instruments, as National Semiconductor operations were acquired. Cross-check datasheet revisions to confirm electrical parameters match design requirements before procurement.

Selection Notes

Select this component when a fixed 5.0V precision reference is required in a cost-effective through-hole package. The ±1% initial tolerance suits general industrial instrumentation. Consider the 20 ppm/°C temperature coefficient for environments with moderate thermal variation. The wide operating current range allows flexibility in biasing resistor selection without compromising regulation stability.

Part Context

This device belongs to the LM336 series of adjustable and fixed shunt voltage references. It serves as a monolithic integrated circuit replacing discrete Zener diodes, offering superior temperature stability and lower dynamic impedance. The LM336Z-5.0 variant specifically fixes the output at 5.0V, simplifying design for applications needing a standard reference level without external trimming networks.

Replacement Considerations

LM336Z-5.0/NOPB is functionally equivalent to LM336Z-5.0. Verify pinout compatibility if substituting with other manufacturers' 5V shunt references. Ensure replacement parts maintain similar temperature coefficients and dynamic impedance characteristics for critical analog applications.