Resistance Temperature Detectors (RTDs) rely on platinum because of its highly predictable relationship between temperature and electrical resistance. Maintaining that accuracy requires exceptional purity, precise dimensional control, and manufacturing processes that minimize contamination and mechanical stress.

Sigmund Cohn Corp. manufactures high-purity platinum resistance wire, including Pt 385® and Reference Grade platinum, for RTDs used in demanding industrial, aerospace, laboratory, and pharmaceutical applications.

Our precision wire manufacturing ensures consistent resistance characteristics from sensor to sensor, allowing engineers to achieve accurate, repeatable measurements throughout long operating lives. Material can also be supplied to specified electrical resistance values.

Advantages

• Stable temperature coefficient of resistance
• Excellent repeatability
• Long-term measurement accuracy
• Outstanding corrosion resistance
• Exceptional manufacturing consistency

Applications

• Industrial automation and process control
• Laboratory instrumentation
• Aerospace systems
• Pharmaceutical manufacturing
• Energy processing

For high-temperature measurement beyond the range of resistance sensing, see our noble metal thermocouple materials.

Contact our engineering team to discuss RTD wire diameter, purity and resistance requirements.