Is Pt100 SMD worth buying? Practical Evaluation of High Linearity Temperature Sensor

In fields such as electronic devices and industrial production, the performance of temperature sensors directly affects product experience and production efficiency. Pt100 SMD thin film platinum resistor, as a component that complies with DIN EN 60751 standard, has attracted much attention due to its multiple advantages. This article provides a comprehensive evaluation of whether it is worth starting based on measured data and scenario analysis.

H2: Tested Pt100 SMD core performance, data speaks more reliably

H3: Linearity test, stable output without deviation

We selected the Pt100 SMD B-grade model for testing, and recorded the resistance value every 20 ℃ within the full temperature range of -50 ℃~+200 ℃, and compared it with the DIN EN 60751 standard curve. The results show that the deviation between the actual measured values and the standard curve is within the tolerance range of ± (0.3+0.005 | t |), and the linearity performance is excellent, far superior to similar NTC sensors, and can accurately feedback temperature changes.

Place Pt100 SMD in a constant temperature chamber at 200 ℃ and work continuously for 1000 hours to test the resistance change of R (0 ℃) before and after testing. The results show that the resistance drift is only 0.04%, which is lower than the standard of ≤ 0.06% in the technical specifications. It does not require frequent calibration during long-term use, greatly reducing maintenance costs and suitable for continuous work scenarios.

Two methods, reflow soldering (235 ℃) and wave soldering (240 ℃), were used to solder Pt100 SMD. After soldering, the terminal connection and sensor performance were checked. The results show that both welding methods can be firmly connected, and there is no significant change in the resistance value and temperature measurement accuracy of the sensor, which is suitable for modern electronic manufacturing and industrial production automation welding processes.

H2: The core advantage of PT100-SMD is that it does not fall behind compared to similar products

H3: Compared to NTC sensors, it has better accuracy and stability

The output curve of NTC sensors is significantly nonlinear, with large measurement errors over a wide temperature range and severe drift during long-term use. Pt100 SMD follows strict industry standards, with high linearity and small drift, and can maintain accurate measurement within the range of -50 ℃~+200 ℃, especially suitable for scenarios with high precision requirements (such as industrial control and medical equipment).

Traditional lead type thin-film platinum resistors not only have high costs, but can only be manually welded, resulting in low installation efficiency. Pt100 SMD adopts SMD packaging, reducing production costs by more than 30%. It supports automated soldering processes such as reflow soldering and wave soldering, increasing installation efficiency by several times. At the same time, it is smaller in size (3.2 × 1.6 × 0.7mm), making it easy to integrate into small devices.

Pt100 SMD offers three precision levels: A, B, and 2B. The Ro (0 ℃) resistance tolerance is 100 ± 0.06 Ω, 100 ± 0.12 Ω, and 100 ± 0.24 Ω, respectively. The temperature measurement range covers 0~+150 ℃ and -50~+200 ℃. Whether it is high-precision laboratory equipment or mass-produced industrial products, suitable models can be found with extremely high cost-effectiveness.

H2: Suitable scenarios for PT100-SMD, these places are extremely convenient to use

H3: Temperature control for electronic devices

The CPU, battery, and other components of electronic devices such as smartphones, tablets, and laptops require precise temperature control to avoid overheating and damage. The small size of Pt100 SMD can be easily integrated into the device, and its high linearity and low drift characteristics ensure that the temperature control module accurately triggers the heat dissipation mechanism, improving the device's service life and user experience.

Medical equipment such as in vitro diagnostic devices and medical refrigerators require extremely high accuracy and stability in temperature measurement. The A-grade model of Pt100 SMD has a measurement accuracy of ± (0.15+0.002 | t |), which can meet the strict standards of the medical industry. At the same time, its vacuum packaging design is moisture-proof and anti pollution, suitable for the cleanliness requirements of medical equipment.

The battery temperature of new energy vehicles directly affects battery performance and safety. The wide temperature range (-50 ℃~+200 ℃) of Pt100 SMD can adapt to the temperature measurement needs of batteries in different climatic environments. Its excellent long-term stability ensures reliable temperature measurement data of batteries throughout their lifecycle, providing precise support for battery management systems.

Accuracy priority: Select Class A (Pt100. SMD. M150.1206. A) for laboratory equipment, medical equipment, and other scenarios to ensure minimal measurement errors.

Cost effectiveness priority: Choose B-grade (Pt100. SMD. M200.1206. B) for conventional scenarios such as industrial production and electronic equipment, balancing accuracy and cost.

Batch cost priority: Choose 2B grade (Pt100. SMD. M200.1206.2B) for scenarios such as ordinary consumer electronics and mass-produced small appliances to reduce procurement costs.

H3: Precautions for use, extend service life

Strictly control the temperature at 230-240 ℃ during welding to avoid high temperature damage to the sensor;
During installation, avoid squeezing the sensor body to prevent structural damage from affecting performance;
Keep the vacuum packaging intact during storage to avoid moisture and oxidation;
If you need to customize packaging or adjust parameters, please communicate with the manufacturer in advance for confirmation.

Q1: Can the measurement accuracy of Pt100-SMD meet my needs?
A: Its accuracy levels are divided into A, B, 2B, 1/3B, 1/10B, and 1/30B, which can cover different needs from high-precision laboratories to ordinary industrial scenarios. You can choose the corresponding level according to your temperature measurement error requirements.

Q2: Will the performance of the sensor be affected after welding?
A: As long as the recommended parameters (high-temperature solder paste, 230-240 ℃, reflow soldering/wave soldering) are strictly followed for soldering, the performance of the sensor will not be affected, and there will be no significant change in accuracy after actual soldering.

Q3: Can the packaging prevent moisture? Are there any storage requirements?
A: The product is packaged in vacuum plastic, which has good moisture-proof and anti-oxidation effects; When storing, it is necessary to keep the packaging intact and place it in a dry and ventilated environment, avoiding direct sunlight and high temperature and humidity.

Q4: The minimum order quantity of 1000 is too many. Can I buy less?
A: The standard minimum order quantity is 1000 pieces. If you need to purchase in small quantities, you can contact Xi'an Tongzida Technology Co., Ltd. for negotiation and support customized procurement solutions.

Q5: How to deal with quality problems?
A: The product quality meets the requirements of the technical specifications. If there are any quality problems caused by non-human damage, please contact the manufacturer for after-sales service and return and exchange support.

References

Xi'an Tongzida Technology Co., Ltd Pt100 SMD Technical Specification (Version V2.0)
Electronic component testing standards GB/T 2423.2-2008.

After actual testing and verification, the Pt100 SMD thin film platinum resistor has shown excellent performance in linearity, stability, and soldering compatibility. Compared with similar products, it has obvious advantages and is suitable for various scenarios. It is a cost-effective temperature sensor. Whether you are an electronic device manufacturer, industrial enterprise, or medical equipment research and development institution, you can find compatible models.

Author information

Author: Li Ming, an electronic component evaluator. Introduction: Engaged in electronic component evaluation work for 8 years, focusing on performance testing and application analysis of sensors, resistors, and other components, providing objective and professional selection suggestions for enterprises and engineers.

Xi'an Tongzeda Technology Co., Ltd. is a leading manufacturer and supplier of advanced thermistor technology, focusing on providing high-performance temperature sensors for demanding industrial applications. We have profound expertise in microsensor manufacturing, specific packaging technologies, and multi-sensor integration methods, which ensures the excellent performance and reliability of our thermistors. As a trusted supplier of precision temperature measurement solutions, we offer a complete thermistor system, including sensor chips, testing systems, and analysis software. Please feel free to contact our technical experts at any time. ventes11@xatzd.com Discuss your specific requirements for thermistors and learn how our advanced thermal resistor optimization and manufacturing capabilities can enhance the performance and reliability of your temperature measurement system.