FDX-B / ISO 11784/5 vs RI-TRP-DR2B

Choose the Sokymat FDX-B / ISO 11784/5 if you need a simple, cost-effective animal identification transponder with factory-programmed unique identifiers and no requirement for field data updates. This chip provides 128 bits of read-only memory (24 bits electrically coded, remainder mask programmed) operating at 134.2 kHz within a 100-200 kHz range using full-duplex (FDX-B) communication. The read-only architecture ensures the programmed ID cannot be altered post-manufacture, making it suitable for permanent animal tagging, livestock tracking, and basic identification applications where the transponder only needs to transmit a fixed unique code to compliant ISO 11784/11785 readers. Choose the Texas Instruments RI-TRP-DR2B if you require substantial user-programmable memory for storing variable data beyond basic identification codes. This 32mm glass transponder offers 1360 bits of memory organized into 17 read/write pages, providing 170 bytes of storage capacity compared to the Sokymat's 16 bytes. Operating at 134.2 kHz with half-duplex (HDX) protocol per ISO 11784/11785, the RI-TRP-DR2B supports both animal identification and industrial applications where additional data such as medical records, breeding history, ownership transfers, or manufacturing parameters must be stored and updated in the field. The rewritable memory architecture makes this chip appropriate for applications requiring data logging, traceability with changeable information, or multi-purpose identification systems where the same transponder type serves different functional roles throughout its lifecycle.