The 3306P-1-203 is a 6 mm round single-turn cermet trimming potentiometer manufactured by Bourns, designed for industrial and open-frame applications requiring precision resistance adjustment. Based on the resistance code 203, this unit provides a nominal resistance of 20 kO with a standard tolerance of ±25%, an adjustment angle of 215° nominal, and essentially infinite resolution. The device operates over a temperature range of -25°C to +100°C with a temperature coefficient of ±250 ppm/°C, and is rated for 0.2 watts at 70°C with a maximum operating torque of 4.5 oz-in. The 3306P-1-203 features cross-slot adjustment options, dust and splash-resistant covers, and solderable pin terminals, making it suitable for circuit board trimming applications in industrial equipment, instrumentation, and consumer electronics where compact size and reliable performance are essential.