LM336BZ-5.0/NOPB

Overview

The LM336BZ-5.0/NOPB is a precision shunt voltage reference diode manufactured by Texas Instruments, continuing the National Semiconductor lineage. It provides a stable 5.0V reference with an initial accuracy of ±1%. The device operates within a current range of 600 µA to 10 mA and features a low temperature coefficient of 20 ppm/°C. Housed in a TO-92-3 through-hole package, it functions as a low dynamic impedance Zener diode equivalent. The component supports operation between -40°C and +85°C, making it suitable for industrial applications requiring precise voltage regulation.

Feature Summary

• Provides a fixed 5.0V precision reference voltage with high initial accuracy
• Features low dynamic impedance for stable performance under varying load conditions
• Allows easy trimming to minimize temperature drift via the third terminal

Applications

• Precision digital voltmeters
• Power supply voltage regulation
• Operational amplifier circuit biasing

Procurement Notes

Verify that the ordering suffix /NOPB confirms lead-free and RoHS compliance status according to the latest manufacturer documentation. Confirm the specific grade (B) matches the required initial accuracy tolerance of ±1% for your design. Ensure the TO-92-3 package dimensions align with your PCB footprint requirements. Check for any recent product change notifications regarding pinout or electrical characteristics before finalizing procurement.

Selection Notes

Select this component when a fixed 5.0V reference is required with tighter initial tolerance than standard variants. The B-grade designation ensures ±1% accuracy compared to looser tolerances in other series members. Consider the TO-92 package for through-hole assembly needs. Evaluate the 20 ppm/°C temperature coefficient against environmental thermal variations. Verify that the 600 µA minimum operating current fits the biasing constraints of the target circuit.

Part Context

This part belongs to the LM336 family of adjustable and fixed shunt voltage references. It serves as a monolithic integrated circuit replacement for discrete Zener diodes, offering superior stability and lower dynamic impedance. The device integrates a bandgap-like reference structure to achieve its precision characteristics. It is widely used in analog signal processing and measurement systems where reliable voltage standards are critical.

Replacement Considerations

LM336Z-5.0/NOPB offers similar functionality but may differ in initial accuracy grades. LM336ADJ/NOPB provides adjustable reference capability instead of fixed voltage. Verify pin compatibility and thermal performance when substituting with generic equivalents from other manufacturers.