PEC11L-4125F-S0020 is an 11 mm low-profile rotary encoder from Bourns featuring a compact design with high rotational and switch life, metal bushing and flattened shaft, and an integrated push-button momentary switch. The encoder outputs 2-bit quadrature code with 20 pulses per 360° continuous rotation and operates over a temperature range of -25°C to +80°C. It features a closed circuit resistance of 100 milliohms maximum, contact rating of 10 mA at 5 VDC, and a dielectric withstanding voltage of 300 VAC minimum. The integrated switch provides 100,000 actuations minimum with a travel of 0.5 ± 0.3 mm and actuation force of 610 ± 306 gf. This encoder is ideal for level control, tuning, and timer settings in audio-visual equipment, consumer appliances, environmental controls, and musical instrumentation, offering reliable performance in compact form factors.