Bourns 6639S-464-102 Precision Potentiometer

Bourns 6639S-464-102 Precision Potentiometer is a member of Bourns’ 6639S family, a line of single-turn, precision rotary potentiometers designed for compact, panel-mount calibration and instrumentation tasks. In this family, variants such as 6639S-1-102 are documented as 1 kΩ, 1-turn devices rated at 1 W in a single-gang, panel-mount configuration, with a screwdriver-slot adjustment option on many models, which helps make fine resistance trims quick and repeatable in control panels. A closely related variant, 6639S-1-103, provides 10 kΩ in the same 1-turn, 1 W, panel-mount format, illustrating the range of values available within the same form factor. These examples confirm the 6639S line’s core characteristics: compact panel-mount potentiometers with high precision over a single rotation, typically used for calibration, instrumentation, and other exacting adjustment tasks. Verified sources include Mouser’s 6639S-1-102 page, Farnell’s 6639S-1-102 entry, and DigiKey’s listing for 6639S-1-103, which collectively corroborate the 1 kΩ and 10 kΩ options, 1-turn travel, and 1 W rating in panel-mounted, single-gang configurations.