The Siemens 6ZB5530-1BC30-2FA3, also known as the MDS D523, is a robust and compact RFID transponder designed for reliable identification in demanding industrial environments. As part of the SIMATIC RF family, it operates at a frequency of 13.56 MHz and complies with the ISO 15693 standard, ensuring compatibility with Siemens RF200, RF300, and MOBY D systems. Its key feature is the ability to be mounted directly on metal surfaces without performance degradation, making it ideal for asset tracking, tool management, and production control applications involving metallic objects. With an IP68 protection rating and a wide operating temperature range, this passive transponder offers exceptional durability and performance.