LM329DZ/NOPB

Overview

The LM329DZ/NOPB is a two-terminal shunt voltage reference manufactured by Texas Instruments. It provides a nominal output voltage of 6.9 V with a maximum temperature coefficient of 50 ppm/°C. The device operates within an input voltage range up to 40 V and supports a maximum shunt current of 15 mA. It functions reliably across a temperature range from 0°C to 70°C. The component is housed in a standard TO-92 three-pin package, designed for through-hole mounting.

Feature Summary

• Provides stable precision voltage reference via two-terminal shunt regulation
• Maintains low temperature drift for consistent performance across operating ranges
• Supports high input voltage capability relative to the reference output level

Applications

• Precision analog circuit biasing
• Voltage monitoring systems
• Comparator reference standards

Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free compliance and RoHS status against the manufacturer's latest documentation. Confirm the TO-92 package variant matches the required PCB footprint. Ensure the 6.9V nominal rating aligns with the target circuit design requirements before procurement.

Selection Notes

Select this component when a fixed 6.9V reference is required in a through-hole configuration. Consider the 15mA current limit for load driving capabilities. Evaluate the 50ppm/°C temperature coefficient against the system's thermal stability needs compared to lower-drift alternatives.

Part Context

This part belongs to the LM329 family of precision shunt voltage references. It serves as a cost-effective solution for applications requiring a stable reference voltage without the complexity of adjustable regulators or higher-cost bandgap references.

Replacement Considerations

LM329CZ#PBF (Analog Devices) offers similar specifications in a TO-92 package.