PT100 Sensor Guide: Precision RTD Sensor with SMD Technology

Introduction to SMD Pt100 Sensor

The Pt100 Sensor is a high-precision SMD Sensor. It is renowned for its reliability and accuracy in temperature measurement. This RTD Sensor is critical across various industries, including automotive, household appliances, aerospace, and biomedical equipment. The PT100 Temperature Sensor can measure temperatures from -200℃ to +900℃. This wide range makes the RTD Pt100 essential for diverse applications, ensuring optimal performance and safety. The SMD Pt100 Sensor design allows for easy integration into complex systems while maintaining high precision.

Advantages of the Pt100 Sensor

High Precision and Stability

The Pt100 Sensor is known for its exceptional precision and stability. Its small size allows easy integration into compact systems without losing accuracy. The stability of this RTD Sensor ensures consistent performance over long periods, making it ideal for critical applications.

Durability

The Pt100 Sensor is built to withstand harsh conditions. It is resistant to shock and impact, ensuring reliability in challenging environments. This durability guarantees that the PT100 Temperature Sensor maintains accuracy over time.

Versatility

The Pt100 Sensor offers versatility with its wide temperature range and various models. Available in standard, ultra-low, and high-temperature series, it covers -200℃ to +650℃, making it suitable for many industrial applications.

Connection Methods

The RTD Pt100 supports multiple connection methods, including resistance welding, argon arc welding, crimping, and brazing. This flexibility ensures secure and stable connections in different setups, enhancing the SMD Sensor's applicability across various technologies.

Key Applications of the RTD Sensor

Aerospace and Military

The Pt100 Sensor is essential in aerospace and military applications. It provides precise temperature measurements in extreme environments. It ensures the safety and performance of critical equipment.

Automotive Industry

In the automotive industry, this RTD Sensor monitors engine temperatures and controls climate systems. Its accuracy ensures vehicle safety and efficiency.

Household Appliances

Household appliances like ovens, refrigerators, and HVAC systems rely on the SMD Sensor for accurate temperature control. The PT100 Temperature Sensor enhances the safety and efficiency of these devices.

Biomedical and Experimental Equipment

The Pt100 Sensor is crucial in the biomedical field. It maintains precise conditions in medical devices and laboratory instruments. This accuracy is vital for patient safety and reliable experimental results.

New Energy Solutions

The SMD Sensor is used in renewable energy technologies. It ensures optimal performance by providing accurate temperature measurements. The RTD Pt100 sensor's reliability is key to the efficiency and longevity of these systems.

Key Features of Pt100 Sensor 

Technical Index

The Pt100 Sensor is part of the RTD sensor category. This sensor have a linear resistance-temperature relationship. This linearity allows for accurate interpretation of temperature changes. Below is a resistance-temperature comparison table for a typical SMD temp sensor.

Component Type	PT100 Temperature Sensor
Component Size	3.2mmx1.6mmx0.7mm
R0 ℃ resistance	100Ω
Temperature coefficient(TCR)	3850ppm/°C
Temperature range	-50°C~+200°C
Long-term stability	Within 200°C and 1000 hours, the drift of R0°C is less than 0.04%
Solder terminal	Tin alloy terminal
Welding type	For reflow soldering or wave soldering, high temperature solder paste is recommended and the welding temperature is 230-240°C

Size

Item	Part	Dimension(mm)
1	Front and back penetration electrode
2	Thermistor film
3	Ceramic substrate
4	L (length)	3.2mm
5	W (width)	1.6mm
6	H (height)	0.7mm

Model Numbers

Item	Pt100 Part Name	Operate temperature range	Grade	R0 ( Ω)	Temperature range	Accuracy
1	RTD Sensor	-50~+200 ℃	A	100±0.06	0~+150 ℃	±(0.15+0.002|T|)
2			B	100±0.12	-50~+200 ℃	±(0.3+0.005|T|)
3			2B	100±0.24	-50~+200 ℃	±(0.6+0.01|T|)

Resistance-temperature characteristics table

Temperature(℃)	resistance( Ω)	Temperature(℃)	resistance( Ω)	Temperature(℃)	resistance( Ω)	Temperature(℃)	resistance( Ω)
-20	92.16	40	115.54	100	138.51	160	161.05
0	100	60	123.24	120	146.07	180	168.48
20	107.79	80	130.9	140	153.58	200	175.86

RTD Pt100 SMD Types

There are several types as below, each designed for specific applications:

• Standard type: Used in general applications where moderate temperature ranges are required.
• High-Temperature type: Designed for applications involving high temperatures up to 650℃.
• Low-Temperature type: Suitable for environments where temperatures can drop as low as -200℃.

Why Choose Pt100 Sensor Over Other Temperature Sensors

Compared with other sensors like NTC thermistors, the RTD Pt100 SMD offers significant advantages in temperature measurement. These benefits include:

Higher Structural Strength: The SMD RTD Sensor is robust, ideal for demanding applications.

Better Linearity: The linear resistance-temperature relationship of the PT100 Temperature Sensor simplifies both measurement and data interpretation.

Improved Repeatability: The RTD Pt100 ensures consistent results across repeated measurements.

Higher Accuracy: The SMD Sensor provides precise readings, crucial for critical applications.

Integration and Installation

Ceramic Substrate

The use of a ceramic substrate in SMD Pt100 Sensor reduces costs significantly compared to leaded thin-film platinum resistance. The ceramic substrate also allows for various soldering processes including tin reflow and wave soldering, enhancing the application range of this RTD Sensor. 

Welding Processes

smd PT100 Temperature Sensor can be integrated into systems using multiple welding processes such as resistance welding, argon arc welding, crimping, and brazing. These processes ensure secure and stable connections critical for the reliable performance of the RTD Pt100.

Conclusion

The SMD Sensor is an indispensable tool in modern temperature measurement. Its precision, stability, and adaptability make it a preferred choice across various industries from automotive to aerospace. By leveraging the capabilities of smd Pt100 Sensor, industries can achieve greater accuracy and reliability in their temperature measurement needs, ensuring optimal performance and safety in their operations.

Incorporating RTD Sensor into your systems will provide you with the accuracy and reliability needed for high-performance applications. Whether you are in the automotive sector, household appliance manufacturing, or advanced aerospace and military applications,  they offer the versatility and durability required to meet your specific needs.