LM136AH-2.5/883

The LM136AH-2.5/883 is a precision 2.5 V shunt voltage reference diode manufactured by Texas Instruments, housed in a hermetic TO-46 metal can package. This device functions as a low-noise, temperature-stable reference element with tight initial accuracy, low dynamic impedance, and a well-defined knee current, making it suitable for demanding analog circuits. The “AH” grade denotes improved temperature coefficient and initial tolerance compared to standard LM136 variants, while the /883 suffix signifies full compliance with MIL-STD-883 processing, screening, and quality conformance requirements. The TO-46 package provides a hermetic seal that protects the die from moisture and contaminants, ensuring ruggedness in harsh environments.

Typical applications include precision analog-to-digital and digital-to-analog converters, voltage regulators, power supply monitoring, and signal conditioning in defense avionics, satellite systems, missile guidance, and industrial control equipment where a stable reference is critical. Because this is a military-grade component, procurement engineers must consider extended lead times, potential export controls (ITAR/EAR), and lifecycle management requirements. The /883 qualified version offers full traceability, lot-level lot grouping, and long-term availability designed to support aerospace and defense program lifecycles, but design engineers must verify current production status from Texas Instruments to mitigate obsolescence risk.