Cherry L20-01A Thumb Wheel Switch 10 Position 11 Pin

Description

Cherry L20-01A Leverwheel Switch 10 Position 11 Pin The Cherry L20-01A is a precision-engineered 10-position leverwheel switch designed for reliable digital-to-binary conversion in industrial and electronic control systems. Featuring a unique 11-pin configuration, it utilizes a mechanical thumbwheel interface that allows users to cycle through digits 0–9 with tactile precision. Its compact design facilitates seamless panel mounting, while the robust internal contacts ensure long-term switching stability and minimal signal noise. Often used for preset addressing or parameter selection, the L20-01A’s binary-coded output provides a clear, high-durability solution for hardware-level data entry. This specific Cherry model remains a go-to component for engineers seeking a dependable, manual interface that bridges the gap between user input and logic circuitry. Features Subminiature Back Mount Design: Engineered as a compact, subminiature switch that mounts securely from the rear of the panel for a clean aesthetic. High-Visibility Dial Characters: Features large .200″ high numerals, ensuring easy readability for the 10-position (0-9) settings. Unique 90° Lever Actuation: The setting lever and internal gear are designed to move only 90 degrees, allowing for quick and tactile incrementing/decrementing. Modular Construction: The interlocking frame permits the assembly of as many individual switch units as required into a single multi-digit module. Extended Printed Circuit Board: Furnished with an extended PCB that allows for the mounting of additional components or simplified wiring termination. High-Impact Polycarbonate Housing: The end caps, case, lever, and wheels are molded from high-impact polycarbonate for durability in industrial environments. Precision Detent Mechanism: Includes a stainless steel coil spring and a nylon detent button to provide a crisp, positive mechanical “click” at each position. Specifications Parameter Value Manufacturer Cherry Series L-20 Leverwheel Model L20-01A Type Leverwheel Switch Output Code BCD Print motif 0-9 Pin Configuration Common + coded outputs (BCD) Number of Positions 10 Number of Pins 11 Mounting Type PCB Solder Connection Card Edge/Solder Pad Construction Modular construction Lever Action 90° rotation per position Rotation Control Optional stops for limiting rotation Rated Current (max.) 1 A Switch Capacity 0.1 A @ 50VAC / 28VDC Contact Resistance 200 mΩ max Dielectric Strength 600VAC for 1 minute Temperature Range -10°C to +65°C Mechanical Life 100,000 operations Electrical Life 50,000 operations Dimensions Truth Table Combination List 0 = C + 0 1 = C + 1 2 = C + 2 3 = C + 3 4 = C + 4 5 = C + 5 6 = C + 6 7 = C + 7 8 = C + 8 9 = C + 9 Pin Configuration Pin Number Pin Name Function / Description 1 C (Common) Common terminal; internally connects to selected position output 2 0 Connected to Common when switch is at position “0” 3 1 Connected to Common when switch is at position “1” 4 2 Connected to Common when switch is at position “2” 5 3 Connected to Common when switch is at position “3” 6 4 Connected to Common when switch is at position “4” 7 5 Connected to Common when switch is at position “5” 8 6 Connected to Common when switch is at position “6” 9 7 Connected to Common when switch is at position “7” 10 8 Connected to Common when switch is at position “8” 11 9 Connected to Common when switch is at position “9” Applications Industrial Process Controllers. Test and Measurement Equipment. Medical Diagnostic Devices. Avionics and Cockpit Panels. Telecommunications Switching Gear. Power Distribution Units. Security System Keypads. Scientific Instrumentation. Military Hardware. Custom Machine Interfaces. Package Contents 1 x Cherry L20-01A Leverwheel Switch 10 Position 11 Pin Datasheet L20-01A Leverwheel Switch

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