The PAC18R1-33D19F is an 18 mm low-profile absolute rotary encoder designed for professional audio and control applications. It features 4-bit gray code output with a sealed shaft and insulated plastic shaft, providing high-class rotational feel with haptic detent feedback. The encoder operates continuously through 360° mechanical angle with a maximum operating speed of 60 RPM, contact rating of 1 mA at 10 VDC, and contact resistance of 100 ohms maximum. It is rated for 30,000 minimum rotational cycles and operates reliably across a temperature range of -35°C to +70°C. The device is RoHS compliant and ideal for professional audio equipment, control panels, and applications requiring sealed, low-profile rotational input with precise position feedback.