BEI H20Db-39-Ss-512-A-3904R-Scs18-5V-S Encoder

BEI H20DB-39-SS-512-AB-3904R-SCS18-5V-S is an incremental optical encoder in BEI’s H20 family that provides 512 pulses per revolution in a two-channel AB quadrature format. It uses 5 V open-collector outputs driven by 3904R transistors and delivers signals through an 18-pin SCS18 connector, making it suitable for compact motor feedback modules and integrated automation systems. The 512 PPR resolution and AB channel pair offer reliable speed and position data for servo or stepper motor control in robotics, CNC, conveyors, and general industrial automation. The H20 series is designed for 5 V operation with standard BEI interface conventions, enabling straightforward integration with BEI accessories and commonly used cabling. Because it adheres to BEI’s H20 interface, it can be paired with BEI cables, connectors, and mounting options for quick replacement in existing equipment.