NJM2373AU-TE1

Overview

The NJM2373AU-TE1 is an adjustable high precision shunt regulator from Nisshinbo Micro Devices, housed in a SOT-89-3 package. It features a reference voltage of 1.25V with ±1% initial accuracy for the 'A' variant. The device operates within a cathode voltage range of VREF to 13V and supports a continuous cathode current up to 30mA. It functions across a temperature range of -40°C to +85°C. Key electrical parameters include a minimum input current of 80µA typ., dynamic impedance of 0.12Ω typ., and power dissipation of 350mW.

Feature Summary

• Adjustable output voltage capability via external resistors
• High precision voltage reference stability
• Low minimum operating current consumption

Applications

• Precision voltage regulation circuits
• Power supply feedback references
• Battery management systems

Procurement Notes

Verify the specific suffix (AU) matches the required accuracy grade (+/- 1%) against the datasheet specifications. Confirm the SOT-89-3 package outline dimensions align with PCB footprint requirements. Ensure thermal management strategies account for the 350mW power dissipation limit at maximum ambient temperatures. Cross-reference the manufacturer part number with distributor catalogs to confirm availability and authenticity.

Selection Notes

Select this component when a low-cost, adjustable shunt reference is required for moderate current applications. Compare against fixed voltage references if precise setpoints are sufficient. Consider the bipolar technology characteristics and temperature drift specifications relative to system accuracy needs. Evaluate the trade-off between the low minimum input current and the required load regulation performance.

Part Context

This component belongs to the NJM2373 series of adjustable high precision shunt regulators manufactured by Nisshinbo Micro Devices. It utilizes bipolar technology to achieve stable reference performance. The AU designation indicates the specific accuracy bin and packaging configuration. It serves as a fundamental building block for linear power supplies and analog signal conditioning circuits requiring a reliable voltage baseline.

Replacement Considerations

Direct substitutes include the NJM2373AF and NJM2376F variants, which share similar functional characteristics but may differ in package type or specific accuracy tolerances. Verify pin compatibility and thermal ratings before substitution.