LM136AH-5.0

The Texas Instruments LM136AH-5.0 is a precision 5.0V shunt voltage reference diode supplied in a hermetically sealed TO-46 metal can package. As a two-terminal shunt reference, it delivers a stable reference voltage over a wide range of operating currents, featuring low dynamic impedance that maintains regulation integrity under fluctuating load conditions. The device leverages a refined bandgap architecture to achieve minimal voltage deviation across temperature, with tight initial accuracy and low output noise inherent to the family. The TO-46 package provides a rugged, hermetically sealed environment that withstands thermal cycling, shock, and vibration, making it inherently suited for high-reliability board-level designs where long-term electrical stability is non-negotiable.

Typical deployment includes precision analog-to-digital and digital-to-analog converter references, industrial process control signal conditioning, and tightly regulated power supply feedback loops in aerospace, defense, and down-hole instrumentation. The hermetic metal can construction prevents moisture ingress and outgassing, critical for vacuum or conformally coated assemblies. From a procurement standpoint, the LM136AH-5.0 represents a mature reference solution; design and supply chain teams should verify current lifecycle status and consider potential obsolescence timelines for sustained production programs. Its proven design pedigree continues to serve legacy and new high-reliability platforms, though systems demanding full military temperature range or MIL-PRF-19500 compliance may require verification of traceability or complementary alternate sources.