The Unique Properties of Thin Film Platinum Resistors
Superior Temperature Coefficient and Accuracy
The Thin Film Platinum Resistor Pt20-DW boasts a temperature coefficient (TCR) of 3850 ppm/°C, aligning perfectly with the IEC60751 standard. This high TCR value translates to exceptional sensitivity to temperature changes, enabling precise measurements across a wide range. The Pt20-DW's accuracy of ± 0.01 Ω further enhances its reliability in critical applications where even minute temperature variations can have significant impacts.
Impressive Temperature Range and Stability
One of the most remarkable features of the Pt20-DW is its expansive operating temperature range, spanning from -200°C to +850°C. This broad range makes it suitable for diverse applications, from cryogenic systems to high-temperature industrial processes. The long-term stability of these resistors is equally impressive, with a drift of ≤±0.04% in resistance after 1000 hours at 500°C. This stability ensures consistent performance over extended periods, reducing the need for frequent recalibration and maintenance.
Compact Size and Rapid Response
The Pt20-DW's compact dimensions of 2.0mm x 2.3mm x 1.0mm make it ideal for integration into space-constrained designs. Despite its small size, it delivers exceptional performance, including rapid response times. In water flow conditions (V=0.4 m/s), it achieves a t₀.₅ of 0.05 s and a t₀.₉ of 0.15 s. Even in airflow (V=2 m/s), the response times remain impressive at t₀.₅ = 3 s and t₀.₉ = 10 s. This quick response enables real-time temperature monitoring in dynamic environments.
Durability and Reliability in Harsh Environments
Robust Construction for Extreme Conditions
The Thin Film Platinum Resistor Pt20-DW is engineered to withstand harsh operating conditions. Its lead specifications, including a length of 10 mm and diameter of 0.2 mm, contribute to its durability. The lead material options, such as platinum-nickel wire, silver-palladium, platinum, or pure silver, provide flexibility to meet diverse design and environmental requirements. Coupled with a robust lead tensile strength of ≥9 N, these resistors maintain stable electrical contact and mechanical integrity, even under continuous vibration, thermal cycling, or assembly stress.
High Insulation Resistance and Vibration Tolerance
The Pt20-DW exhibits exceptional insulation properties, offering a resistance of 100 MΩ at 20°C and maintaining >2 MΩ even at elevated temperatures of 500°C. This consistently high insulation resistance ensures precise and stable measurements, minimizing signal interference in electrically noisy environments. Additionally, the sensor's robust vibration resistance—withstanding accelerations of ≥40g across a broad frequency range of 10–2000 Hz—enhances its reliability in demanding conditions. These features make it ideal for critical applications in automotive, aerospace, and industrial systems, where durability and accuracy are paramount.
Shock Resistance and Self-Heating Mitigation
With a shock resistance of ≥100g acceleration (8 ms half-sine wave), the Pt20-DW can withstand sudden impacts and maintain its integrity. This robustness is crucial in applications where equipment may be subject to occasional shocks or rough handling. Additionally, the low self-heating coefficient of 0.4°C/mW (at 0°C) minimizes measurement errors due to the sensor's own heat generation, ensuring accurate temperature readings even at high operating currents up to 900 mA.
Versatility and Customization Options
Flexible Design and Packaging
The Thin Film Platinum Resistor Pt20-DW offers versatility in design and packaging. While the standard dimensions are 2.0mm x 2.3mm x 1.0mm, customization options allow for sizes ranging from 1.2mm to 4.0mm to suit specific application needs. The default vacuum plastic packaging ensures protection during storage and handling, but alternative packaging formats are available upon request, catering to diverse integration requirements.
Wide Range of Applications
The exceptional properties of the Pt20-DW make it suitable for a broad spectrum of applications. In industrial settings, it excels in process control, HVAC systems, and energy management. The medical field benefits from its precision in patient monitoring devices and diagnostic equipment. Automotive applications leverage its durability for engine management and exhaust gas temperature sensing. In aerospace, these resistors play crucial roles in avionics and environmental control systems.
Quality Assurance and Certifications
Manufactured by Xi'an Tongzida Technology Co., Ltd., the Thin Film Platinum Resistor Pt20-DW is produced under stringent quality control measures. The company's automated production line and comprehensive testing platform ensure consistent high-quality output. With certifications including ISO9001 quality management system, ROHS, and CE, these resistors meet international standards for reliability and environmental compliance, making them a trusted choice for global applications.
Conclusion
The Thin Film Platinum Resistor Pt20-DW stands out as an exemplary choice for sensor applications, offering a perfect blend of accuracy, stability, and versatility. Its superior temperature coefficient, wide operating range, and rapid response times make it indispensable in precision temperature measurement scenarios. The robust construction, coupled with high vibration and shock resistance, ensures reliability in harsh environments.
Whether in industrial processes, medical equipment, automotive systems, or aerospace applications, the Pt20-DW delivers consistent, high-performance results. For those seeking to elevate their temperature sensing capabilities, the Thin Film Platinum Resistor Pt20-DW presents an optimal solution. To explore how this advanced sensor can benefit your specific application, reach out to the experts at sales11@xatzd.com for personalized guidance and support.
