LM140LAH5.0/883

The LM140LAH5.0/883 is a military-grade fixed-output linear voltage regulator manufactured by Texas Instruments, part of the LM140 family delivering a regulated 5 V output with load current capability up to 100 mA. This device incorporates internal current limiting, thermal shutdown, and safe-area compensation to protect against fault conditions, and it accepts a wide input voltage range consistent with standard three-terminal regulators. The TO-39 metal can package provides hermetic sealing and low thermal resistance, ensuring stable operation across the full military temperature range and in environments with high vibration or humidity. The /883 suffix designates full compliance with MIL-STD-883 processing, including rigorous screening, burn-in, and environmental test methods that guarantee long-term reliability for mission-critical systems.

Typical applications span defense avionics, radar power supplies, tactical communication gear, satellite subsystems, and high-reliability industrial instrumentation where a rugged point-of-load 5 V rail is essential. Design engineers commonly deploy this regulator to power sensitive analog front-ends, microcontrollers, or reference circuits in platforms exposed to severe thermal and mechanical stress. From a procurement perspective, MIL-STD-883 qualified components carry extended production lifecycles and traceability, but may be subject to export controls, minimum order quantities, and longer lead times. Obsolescence risks are mitigated by Texas Instruments’ long-term support for military-grade semiconductor products; however, sourcing strategies should account for periodic factory allocations and the need for certified certificates of conformance.