UA78H05SC Fairchild Semiconductor fixed positive voltage regulator (NOS)

Identification

​Part Number: UA78H05SC

​Manufacturer: Fairchild Semiconductor (which was acquired by ON Semiconductor)

​Description: This is a fixed positive voltage regulator. The "78" series is a common family of linear voltage regulators. The "05" indicates it regulates to a nominal output of 5 volts. The "H" signifies that it is a high-current version, and the "SC" likely indicates the specific package type and a military-grade or specific commercial variant.

​Key Specifications

​Package Type: TO-3 metal can, which is a common package for high-power transistors and voltage regulators due to its ability to dissipate heat.

​Output Voltage: 5V (nominal)

​Output Current: 5A (maximum)

​Input Voltage Range: 7.5V to 25V

​Technology: Hybrid (likely combines different components on a single substrate)

​Features: Internal thermal overload and short-circuit protection.