PEC11L-4220K-S0015 is an 11 mm low-profile rotary encoder from Bourns featuring a compact design with integrated push momentary switch and metal knurled shaft. The encoder outputs 2-bit quadrature code with 15 pulses per 360° continuous rotation, providing precise position feedback for control applications. Key electrical specifications include 100 mO maximum closed circuit resistance, 10 mA contact rating at 5 VDC, and 300 VAC minimum dielectric withstanding voltage at sea level. Mechanically, it offers 360° continuous rotation with detent torque of 0.20–200 gf-cm and running torque of 10–150 gf-cm, along with a push switch featuring 100,000 minimum actuations and 0.5 ± 0.3 mm travel distance. The device operates reliably from -25°C to +80°C and is RoHS compliant, making it ideal for level control, tuning, and timer settings in audio-visual equipment, consumer appliances, environmental controls, and musical instrumentation.