Product Description
RS214A Series Temperature-Compensated Flush Diaphragm Ceramic Piezoresistive Sensor Core
The RS214A series temperature-compensated flush diaphragm ceramic piezoresistive sensor core uses a meticulously crafted alumina ceramic base, combined with highly stable sensitive materials. It is refined through processes such as screen printing, high-temperature sintering, and laser trimming.
The RS214A has dimensions of φ21X4.(**)mm. Its unique circuit design significantly enhances product reliability. The sensitive element internally integrates a temperature compensation circuit and undergoes laser trimming, ensuring that within the conventional usage range (-20°C to 85°C), the internal bridge temperature drift signal is nearly zero (≤0.02% FS/°C), greatly reducing the temperature compensation calibration required during pressure sensor production.
Ceramic material offers excellent thermal stability and creep resistance, with an operating temperature range up to -40°C to 150°C, demonstrating outstanding long-term stability.
The corrosion resistance of ceramic provides significant advantages in fields such as refrigeration, chemical industry, pharmaceuticals, and environmental protection, gradually replacing the common diffused silicon pressure sensors.
With its high cost-effectiveness, the temperature-compensated ceramic piezoresistive sensor core becomes the preferred choice for pressure sensing elements in IoT applications. It is widely used in measuring the pressure of air, water, oil, and other media. It has extensive applications in areas such as automotive, air compressors, firefighting water pipes, industry, and household appliances. We can customize various shapes and sizes of pressure-sensitive cores according to customer requirements.
Product parameters
Series Name | RS214A |
Type | Temperature-Compensated Flush Diaphragm Ceramic Piezoresistive Sensor Core |
Measured pressure type | Absolute Pressure |
Size (diameter x height) | φ 21 x (4.30~4.73)mm |
Supply voltage | 2-30V DC |
Bridge road impedance | ※10.0kΩ ± 30% |
TCR | ≤ 100 ppm/℃@-40℃~125 ℃ |
Working pressure | 5/10/20/30/50Bar |
Overload pressure | >2×FS |
Burst pressure | >5×FS |
Operating temperature | -40 ℃~150℃ |
Storage temperature | -40 ℃~150℃ |
Zero offset | ※0±0.4mV/V |
Sensitivity | ※2.0-4.0mV/V/FS，Typ:3.0mV/V/FS |
Output accuracy | 0.50% FS Max.@20-25℃ |
Response time | ＜ 2mS |
Insulation resistance | ＞ 2KV |
Zero-point long term stability@25℃ | Zero@25℃：＜0.25 FSO (no time accumulation） |
Cycle life | ＞5 million pressure cycles@2-5Hz, 0~full scale pressure~0, 15 ~35℃ |
Working medium | oil, water, gas, refrigerant, coolant, chemical solvents, detergents, etc |
Produc Introduction
Patented circuit layout design
Unique structural design
Ultra-high overload and burst pressure, suitable for high-impact pressure scenarios
Wide temperature range, broad applicability
High-elasticity diaphragm to enhance sensitivity and meet high-precision measurement requirements
Supports precise data acquisition
Quality control
Huaxinlian Technology has a number of core patented technologies. Its products adopt the industry's most advanced design concepts and process routes. Various performance indicators have reached the international leading level. It is equipped with advanced automatic production lines and produces more than 5 million piezoresistive cores and 2 million modules annually. It is the largest ceramic pressure sensor manufacturer in China.
Application Cases
Flat film ceramic circular resistor pressure core plays a key role in many fields. In the high-pressure pipeline system of petrochemical industry, it can accurately measure the pressure of complex media, provide real-time data for safe operation of pipelines, and prevent leakage risks;
In the car's electronic power steering system, it stably monitors pressure changes to ensure that the steering assist is just right, improving driving controllability and safety;
In meteorological monitoring instruments, it accurately senses differences in air pressure, helping to improve the accuracy of meteorological data collection and weather forecasts. Whether in extreme environments or precision engineering, it demonstrates its indispensability with its excellent performance.
Service
Two-year warranty service, free repair or replacement for non-human quality problems during the period, ensuring peace of mind.
A professional team of engineers provides full-process technical support for the product with professional knowledge and experience.
Support customized business, tailor-made on-board MEMS pressure sensors according to customer's special needs.
