TC33X-1-203E is a 3 mm surface-mount trimming potentiometer (Trimpot) designed for precision resistance adjustment in compact electronic assemblies. It features a 20 kO nominal resistance value with ±25% tolerance, continuous rotation mechanical angle, and an adjustment angle of 270° ± 20°. The device operates over a temperature range of -40°C to +100°C with a power rating of 0.15 watts at 70°C, and exhibits excellent stability with a temperature coefficient of ±250 ppm/°C. Its rotor design is compatible with pick-and-place and automatic adjustment equipment, making it ideal for automated manufacturing environments. The TC33X-1-203E is commonly used in instrumentation, consumer electronics, and industrial control systems where fine-tuning of circuit parameters is required during manufacturing or field service.