Dongguan Linkun Electronic Technology Co., Ltd.
Dongguan Linkun Electronic Technology Co., Ltd.
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Pt100/Pt1000 platinum thermal resistor or NTC thermistor?
Pt100/Pt1000 (positive temperature coefficient)/NTC (negative temperature coefficient) resistance thermometers are widely used in the industrial field for medium and low temperature zone measurements. The process control industry almost entirely uses Pt100/Pt1000 platinum thermal resistors as temperature measuring elements, but NTC thermistors are usually used in the machine manufacturing industry based on their price advantage. However, due to the use of thin film technology, the platinum content of the temperature measuring elements Pt100 and Pt1000 can be reduced to a minimum, so the price difference with NTC thermistors is greatly reduced. For medium-volume orders of temperature measuring elements, Pt100 or Pt1000 can be considered to replace NTC. More importantly, platinum thermal resistors have many significant advantages over negative temperature coefficient thermistors.
Pros and cons of different temperature measuring elements
Pt100/Pt1000 platinum thermal resistors comply with international standards (IEC 751 / DIN EN 60 751). In contrast, due to factors such as materials and production standards, NTC semiconductor components cannot be manufactured in a standardized manner, so their interchangeability is poor. The advantages of platinum thermal resistors also include: long-term stability and better temperature cycling performance, a wider temperature measurement range, and high measurement accuracy and linearity. NTC thermistors can also achieve high measurement accuracy and linearity, but only within a very limited temperature range. Pt100/Pt1000 platinum thermal resistors manufactured with thin-film technology are suitable for temperatures up to 500°C, while standard NTC thermistors are suitable for temperatures up to 150°C.
Influence of lead wires
The resistance of the lead wires affects the measured value of the two-wire temperature sensor, which must be taken into account. For a copper cable with a cross-sectional area of 0.22 mm2, the reference value of the influence of its resistance on the temperature measurement accuracy of the pt100 platinum thermal resistor is: 0.162Ω/m→0.42°C/m. The influence on the temperature measurement accuracy of the Pt1000 platinum thermal resistor (0.162Ω/m→0.04°C/m) is 10 times smaller. Compared with the base resistor R25, the lead resistance has a much smaller effect on the NTC thermistor, but according to the NTC thermistor temperature characteristic curve, this effect will increase in a disproportionate manner at higher temperatures.
Summary
In the case of large-volume orders, it is still advisable to use NTC thermistors based on cost considerations. For small and medium batches, it is recommended to choose platinum thermal resistors. Pt1000 platinum thermal resistors manufactured using thin film technology are the best choice. It will not bring too much cost increase, but can greatly improve the product measurement accuracy and other performance.
Temperature sensor customization is roughly divided into: resistance, packaging shell, wire parameters, wire end processing (tin dipping or connecting terminals)
1. Customized according to customer needs, common types are as follows
| Category | 1 | 2 | 3 | 4 | ||||||||
| Resistance | NTC thermistor | PT100/PT1000 platinum resistor | DS18B20 | Thermocouple | ||||||||
| Encapsulation shell | Stainless steel (304, 316) | Nickel plated copper shell | ABS shell | Injection molded shell | ||||||||
| Wire parameters | Stainless steel mesh braided wire | Silicone wire/PVC wire | Fiberglass mica wire | Teflon wire | ||||||||
| Tail connection | 2.5/3.5mm audio plug | Connectors (customized on demand) | Blade terminal | Bare wire dipped in tin | ||||||||
| 2. The specific parameters are as follows: | ||||||||||||
| Category name
| Resistance parameters | Accuracy | Specifications and models | Temperature resistance range | ||||||||
| NTC thermistor (R) | 5K,10K,50K,100K, | 1%,2%,3%,5% | MF52,MF58 | 〔-30℃～300℃〕 | ||||||||
| NTC thermistor (B) | 3435,3470,3950,3970,3977 | |||||||||||
| Platinum resistance | PT100/PT1000 | Class A, Class B | ～ | (-50℃～500℃) | ||||||||
| DS18B20 | DS18B20 | ±0.5% | ～ | (-50℃～125℃) | ||||||||
| Thermocouple | K type | Level 1, Level 2 | ～ | (-50℃～600℃) | ||||||||
| Wire | ～ | ～ | AWG:18/20/22/24/26/28 | (-105℃～500℃) | ||||||||
3. Usage and working environment: food temperature measurement, smart home appliances, agriculture, industry, etc., waterproof and moisture-proof, high/low temperature resistance, corrosion resistance, etc.
| Spectrum Peaknm | 560 |
| Operating Current | 1mA |
| Max Power Consumptionmw | 100nmw |
| Operating Voltage | 3.3V To 5V |
| Measuring The Dielectric | Temperature |
| Terminals | Brass Tin Plated |
| Cable | XLPE Black Cable |
| Wire | PVC, Teflon, Enamel Insulation |
| Storage Temperature Range | -55°C To 150°C |
| Connector | PH-2Y |
With an operating current of 1mA and terminals made of brass tin plated material, the NTC Sensor can operate within a voltage range of 3.3V to 5V, making it compatible with a wide range of electronic systems. The connector type PH-2Y ensures easy and secure connections, enhancing the usability of the sensor.
The NTC Sensor from LINKUN is ideal for measuring the dielectric temperature in different environments and industries. Its high precision and stability make it suitable for applications such as HVAC systems, temperature control in industrial processes, medical equipment, and more. The sensor's ability to provide accurate temperature readings ensures optimal performance and efficiency in various scenarios.
Whether used in laboratories, manufacturing facilities, or electronic devices, the NTC Sensor proves to be a valuable tool for monitoring and controlling temperature. Its reliable performance and durable construction make it a preferred choice for engineers, technicians, and researchers seeking precise temperature measurement solutions.
Overall, the NTC Sensor by LINKUN offers a combination of quality, accuracy, and versatility, making it a trusted option for a wide range of temperature sensing applications. From industrial automation to consumer electronics, this sensor proves to be a valuable asset for ensuring optimal temperature management and control.
Customize your NTC Temperature Sensor product with our Product Customization Services:
Brand Name: LINKUN
Model Number: PT100 Temperature Sensor
Place of Origin: Dongguan, Guangdong, China
Max Power Consumptionmw: 100nmw
Assembly: Insert Hole Or Lock
Cable: XLPE Black Cable
Measuring The Dielectric: Temperature
Connector: PH-2Y
The NTC Temperature Sensor product comes with comprehensive Product Technical Support and Services. Our team of experts is available to assist you with any technical inquiries, troubleshooting, and implementation guidance. Additionally, we offer services such as product training, documentation, and warranty support to ensure a seamless experience with our NTC Temperature Sensor product.