The 3059Y-1-503LF is a Bourns Trimpot® trimming potentiometer featuring a 1-1/4" rectangular multiturn cermet design with 50 kO resistance (code 503) and RoHS-compliant tin-plated terminations. It offers precise adjustability with ±0.05% resistance tolerance and ±0.01% voltage adjustability, with an infinite resolution across 22 nominal turns of effective travel. The device operates over a temperature range of -55°C to +150°C with a power rating of 1.0 watt at 70°C, and features sealed construction rated for industrial applications per MIL-PRF-22097. Its low torque requirement of 5.0 oz-in maximum and flexible leads make it suitable for circuit board trimming, calibration, and precision adjustment applications in instrumentation and control systems.