KA7806

KA7806 is a fixed positive voltage regulator in the KA78xx family. It provides a regulated 6-volt output from a higher input voltage and is used to create stable supply rails for electronic circuits. Like other 78xx devices, it is a three-terminal regulator and is commonly available in TO-220 and related packages. It is functionally equivalent to the widely used LM7806 series.

Electrical characteristics are typical for a fixed 6 V regulator. The device accepts input voltages higher than 6 V, typically up to around 30–35 V, and maintains a steady 6 V at the output. The dropout voltage is generally about 2 V at moderate load, increasing with higher current. The maximum output current is usually around 1 A. The regulator includes protection features such as short-circuit protection and thermal shutdown to prevent damage under fault conditions. For stable operation, input and output capacitors are recommended as specified by the manufacturer to improve transient response and prevent oscillation.

Pin configuration and packaging vary by variant and vendor. In the common TO-220 package, facing the front of the device, the pins are typically Input, Ground, and Output, with the metal tab connected to Ground. Always consult the specific datasheet for the exact pinout and capacitor recommendations, as there may be variations between manufacturers and packages.

Applications for KA7806 include linear power supplies for microcontrollers, logic circuits, and other electronics that require a solid 6 V rail. It is suitable for hobbyist projects and commercial products where a simple, low-cost regulator is appropriate.