LAS2205

4PCS USED 5Volt, 5Amp, 85Watt Positive Power Hybrid Voltage Regulator module. Manufactured by Lambda Electronics Inc., this specialized component carries the National Stock Number (NSN) 5962-00-505-0247.Technical SpecificationsOutput Voltage: Fixed +5V DC.Current Rating: Continuous 5 Amperes (with a 5A peak).Power Dissipation: 85 Watts maximum.Internal Architecture: Built as a hybrid module rather than a standard monolithic IC. The power transistor section sits directly on the thick metal, heat-dissipating base, while the sensitive control and reference circuit elements are thermally isolated on an upper layer to minimize thermal drift.Package/Case Style: Heavy-duty, hermetically sealed multi-pin industrial module with an electrically isolated case.What This Was Used InBecause monolithic linear regulators (like the common 7805 TO-220 package) top out at 1A to 1.5A, the high-power LAS2205 was used as the primary step-down regulation stage in heavy-duty electronic systems from the 1970s through the 1990s. It was specifically deployed in:Lambda Modular & Open-Frame Linear Power Supplies: Lambda used its own proprietary hybrid modules inside its premium vintage industrial benchtop equipment and open-frame system power supplies (such as the LM, LX, and LZS system series).Military, Aerospace, and Defense Hardware: Given its official NSN military designation, it was heavily utilized in ruggedized defense gear, naval components, and ground-based radar infrastructure where high-amperage 5V rails required extreme reliability without noise artifacts.Early Mainframe and Minicomputer Systems: Used to supply clean, ultra-low-noise 5V power to massive arrays of power-hungry Transistor-Transistor Logic (TTL) digital logic boards.Industrial Automation & Laboratory Instruments: Integrated into legacy telecommunication grids, heavy factory automation cabinets, and high-precision scientific testing equipment that required high-current DC-to-DC conversion with strict line and load regulations.