What Are Wire-Wound PRTs and Their Advantages?

Wire-wound PRTs are traditional high-performance temperature sensors constructed by winding fine platinum wire around a ceramic or glass core. This manufacturing method produces extremely stable, accurate, and durable sensors suitable for the most demanding industrial and laboratory applications. Wire-wound designs offer superior long-term stability and low drift compared to other PRT types, making them ideal for reference standards and critical processes. The platinum wire used in wire-wound PRTs is highly pure, ensuring consistent resistance-temperature behavior compliant with international standards. These sensors withstand high temperatures, thermal shock, and vibration better than many thin-film alternatives. Wire-wound PRTs provide excellent repeatability and minimal hysteresis, ensuring reliable measurements over many years. They are widely used in calibration laboratories, aerospace, automotive testing, and high-precision industrial systems. While slightly larger than thin-film models, wire-wound PRTs offer unmatched robustness and stability. For applications where performance and longevity are prioritized over miniaturization, wire-wound PRTs remain the gold standard.