SMD Trimmer Resistors (Single-turn)
Surface-mount single-turn trimmer resistors of 3314 and ST-23E series. Resistances 100 Ω - 1 MΩ, power 0.1-0.25 W. 270° adjustment with top- or side-adjust screw. Filter by resistance, body (3×3 mm, 4×4 mm), screw orientation, and terminal style (gull-wing, J-lead). Used in compact SMD boards for signal-level calibration, reference voltages, RC oscillator tuning, and sensor module setup — where a one-time factory adjustment is needed without through-hole parts.