LM136H-2.5

Overview

The LM136H-2.5/NOPB is a precision shunt voltage reference manufactured by Texas Instruments, housed in a TO-3 metal can package. It provides a nominal output voltage of 2.49 V with an initial accuracy of 1%. The device operates within a temperature range of -55°C to +125°C and features a temperature coefficient of 20 ppm/°C. Maximum shunt current is rated at 10 mA.

Feature Summary

• Provides stable precision voltage reference via shunt regulation architecture
• Utilizes hermetic metal can construction for environmental robustness
• Designed for high-temperature industrial operation environments

Applications

• Precision analog circuit voltage referencing
• Industrial sensor signal conditioning
• High-reliability measurement instrumentation

Procurement Notes

Verify the specific suffix (e.g., NOPB) against official datasheets to confirm RoHS compliance status and exact electrical tolerances. Ensure the TO-3 package dimensions match the target PCB or chassis mounting requirements before finalizing procurement decisions.

Selection Notes

Select this component when a hermetically sealed, high-temperature capable voltage reference is required. The TO-3 package offers superior thermal dissipation compared to plastic packages. Consider the 1% initial accuracy and 20 ppm/°C drift characteristics against system calibration needs.

Part Context

This part belongs to the LM136 series of adjustable and fixed voltage references. It shares architectural similarities with the LM135 temperature sensor but is optimized specifically for voltage regulation rather than sensing. The family is known for military-grade reliability and wide operating temperature ranges.

Replacement Considerations

Check for direct equivalents such as the LM136H-2.5 without suffix if lead-free compliance is not mandatory. Verify pinout compatibility with existing designs when substituting.