LD201VR – ROHM

The Rohm LD201VR is a 650nm band visible red laser diode typically employed in optical disc drives, laser pointers, and bar code scanners. Based on the “ROHM/92+” marking, this indicates a specific manufacturing process or die revision, likely influencing performance characteristics such as optical power output, forward voltage, and temperature stability. The “NOT RoHS” designation signifies the component contains lead or other restricted substances exceeding RoHS compliance limits, requiring its use to be restricted to applications exempt from RoHS regulations. The “46-4724” likely references a date code or internal lot tracking number within Rohm’s manufacturing system, useful for traceability and quality control purposes. Electrical and optical characteristics, such as typical optical power output (mW), forward voltage (Vf), threshold current (Ith), and slope efficiency (mW/mA), are not specified but would be crucial for design considerations.