LM285BYZ-2.5/NOPB

Overview

The LM285BYZ-2.5/NOPB is a micropower shunt voltage reference diode manufactured by Texas Instruments. It provides a fixed output voltage of 2.5 V with an initial accuracy of ±1.5%. The device operates within a temperature range of -40°C to +85°C and features a low temperature coefficient of 50 ppm/°C. It supports a maximum shunt current of 20 mA and utilizes a TO-92-3 through-hole package.

Feature Summary

• Provides stable 2.5 V reference voltage
• Low temperature drift for precision applications
• Micropower operation capability

Applications

• Precision measurement systems
• Portable instrumentation
• Battery-powered devices

Procurement Notes

Verify the specific suffix 'BYZ' against the official Texas Instruments datasheet to confirm the exact temperature coefficient and package variant, as generic listings may omit critical electrical distinctions. Ensure the NOPB designation confirms lead-free compliance and RoHS status prior to integration into production designs.

Selection Notes

Select this component when a fixed 2.5 V reference is required in a through-hole TO-92 package. The 50 ppm/°C temperature coefficient offers improved stability over standard variants. Confirm that the 20 mA maximum shunt current meets the circuit's biasing requirements and thermal dissipation limits.

Part Context

This part belongs to the LM285 family of micropower voltage references. It serves as a cost-effective solution for applications requiring a stable reference voltage without the complexity of adjustable regulators. The TO-92 package facilitates easy prototyping and through-hole assembly.

Replacement Considerations

LM285Z-2.5/NOPB shares the same 2.5 V output and TO-92 package but typically exhibits a higher temperature coefficient (150 ppm/°C). Verify if the reduced stability of the Z-series variant is acceptable for the specific application requirements.