ROHM launches RPR-0730: High-Speed, High-Precision Optical Sensor Featuring VCSEL Technology

Executive Summary

• ROHM Semiconductor announced the launch of the RPR‑0730 analog compact optical sensor, a new high‑precision VCSEL‑based reflective sensor for fast‑moving object detection.
• The sensor offers a 10 µs response time, detects line widths as narrow as 0.1 mm, and is packaged in an ultra‑compact 2.0 mm × 1.0 mm × 0.55 mm form factor.
• Mass production began in October 2025 and the part is now available through major online distributors (DigiKey, Mouser).

Key Details

• Product name: RPR‑0730 analog compact optical sensor (photo reflector).
• Technology: Infrared VCSEL emitter with phototransistor analog output; visible‑light filtering resin to suppress ambient light interference.
• Performance: Response time 10 µs; capable of detecting fine lines down to 0.1 mm width.
• Physical dimensions: 2.0 mm × 1.0 mm × 0.55 mm (ultra‑compact).
• Applications highlighted:
• Print detection, paper feed/jam detection in label printers, copiers, shredders.
• Object and workpiece position detection in conveyor/inspection systems.
• Motor/gear rotational detection in industrial robots.
• Production status: Mass production commenced October 2025.
• Availability: Available for purchase online via distributors such as DigiKey and Mouser.
• Strategic note: Expands ROHM’s sensor portfolio beyond the digital‑output RPR‑0720 series, targeting higher‑speed, higher‑precision sensing needs in consumer and industrial equipment.

Notable Quotes

• “Going forward, ROHM will continue to leverage its development expertise in light‑emitting and light‑receiving elements to create sensing products that meet customer needs, contributing to the miniaturization and enhanced convenience of various devices.” – Heike Mueller, ROHM Semiconductor.