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QTB351 metal base pressure sensitive chip

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Contact number:: +86-0731-81809600; +86-0731-85128155

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Company address:: No. 22, Dingsheng Road, Liuyang Economic Development Zone (High-tech Zone)
Address of Marketing Center:: Room 1108, Floor 11, Building 2, Modern Service Industry Park, No. 118 Xiongtian Road, Furong District, Changsha City

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QTB351 metal base pressure sensitive chip

The QTB3 51 type metal-based pressure-sensitive chip uses MEMS technology to directly fabricate the strain resistance on a 17-4PH stainless steel substrate. Through the elastic deformation of the substrate, the chip outputs an mV voltage signal linearly related to the measured pressure to achieve Accurate and fast measurement of the measured pressure. Designed for the high specification requirements of sensor performance, reliability and stability of major sensor OEMs and integrators, the chip outputs mV voltage signals, and customers can process the signals according to their actual requirements. QTB352 high temperature resistant metal-based pressure sensitive chip (customized)

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Category：Metal-based pressure sensitive chip

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Product description

Parameters

1

product description

The QTB3 51 type metal-based pressure-sensitive chip uses MEMS technology to directly fabricate the strain resistance on a 17-4PH stainless steel substrate. Through the elastic deformation of the substrate, the chip outputs an mV voltage signal linearly related to the measured pressure to achieve Accurate and fast measurement of the measured pressure. Designed for the high-specification requirements of major sensor OEMs and integrators for sensor performance, reliability and stability, the chip outputs mV voltage signals, and customers can process the signals according to their actual requirements.

QTB352 high temperature resistant metal-based pressure sensitive chip (customized)

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Features

◆The sputtering film technology guarantees good long-term stability and high reliability

◆Wide working temperature zone, low temperature drift, high overload capacity

◆Integrated structure, suitable for a variety of fluid media

◆17-4PH stainless steel material, corrosion resistance

◆Small size, the outer diameter of the strain surface is 7mm, the outer diameter of the step is 9.5mm, the height is 5mm, and the product weight is 1g

◆Unique ID function code

◆High cost performance, suitable for OEM manufacturers

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Circuit principle and pin identification definition

Pin number	1	2	3	4
Function code	V-	S+	V +	S-
Function definition	power supply-	Output+	Power+	Output-

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Use and industry

Gas and liquid pressure measurement in the fields of aerospace, shipbuilding, rail transit, construction machinery, gasoline cylinder direct injection and diesel high-pressure common rail direct injection, petroleum and chemical industry, industrial automation control, etc.; pressure transmitters, pressure detection instruments and meters .

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Product parameter

Measured medium	Gas and liquid compatible with stainless steel
Type of pressure	Gauge pressure, absolute pressure
Range	0.5MPa～250MPa (customizable)
Precision	± 0.03% FS 、 ± 0.05% FS 、 ± 0.1% FS 、 ± 0.2% FS 、 ± 0.5% FS 、 ± 1% FS
Not linear	± 0.1% FS 、 ± 0.15% FS 、 ± 0.2% FS 、 ± 0.3% FS 、 ± 0.4% FS 、 ± 0.5% FS 、 ± 0.6% FS
Hysteresis	±0.1%FS
Repeatability	0.1%FS
Sensitivity	1.3 ± 0.10mV / V 、 1.4 ± 0.25mV / V 、 1.5 ± 0.1mV / V 、 1.7 ± 0.2mV / V
Long-term stability	±0.2%FS/year
Operating temperature	-40～+105℃ or customized
Zero temperature drift	±0.01 %FS/℃
Full-scale temperature drift	±0.03 %FS/℃
Insulation resistance	≥1000MΩ/500VAC
Breaking pressure	10～40 times (maximum not exceeding ≤400MPa)
Allow overload	1.5～2 times or customized
Response time	≤0.1 millisecond
Material	17-4PH
High reliability	Withstand 10 million shocks and sustain pressure
Dimensions	The outer diameter of the strain surface is 7mm, the outer diameter of the step is 9.5mm, and the height is 5mm
Recognizable	Unique ID code, can query the manufacturing, testing and calibration information of the chip

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Dimensions and wiring instructions

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Pressure level, sensitivity and pressure range

Pressure (MPa)	Sensitivity (mV/V)	Non-linearity (±%F·S)	Overload pressure (rated pressure)	Breaking pressure (rated pressure)
0.5	1.4±0.25	0.50	×2	×30
0.7	1.4±0.25	0.50	×2	×30
1.0	1.3±0.10	0.60	×2	×40
1.6	1.5±0.10	0.60	×2	×40
2.0	1.7±0.20	0.40	×2	×40
2.5	1.7±0.20	0.30	×2	×40
4	1.7±0.20	0.30	×2	×20
6	1.7±0.20	0.20	×2	×20
10	1.7±0.20	0.20	×2	×20
16	1.7±0.20	0.20	×2	×10
25	1.7±0.20	0.15	×2	×10
40	1.7±0.20	0.15	×2	×10
60	1.7±0.20	0.15	×2	≤400MPa
100	1.5±0.10	0.10	×1.5	≤400MPa
160	1.5±0.10	0.10	× 1.5	≤400MPa
250	1.5±0.10	0.10	≤300MPa	≤400MPa

Note: Other pressure ranges can be customized

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product model

model	Range	Accuracy class	Temperature range
QTB 351	055 0.5MPa	A 0.03% FS	11 0～85℃
	075 0.7MPa	B 0.05% FS	22 -10～105℃
	105 1 MPa	C 0.1% FS	32 -25～105℃
	165 1.6MPa	D 0.2% FS	42 -40～105℃
	205 2 MPa	E 0.5% FS	52 -55～105℃
	255 2.5MPa	F 1% FS
	046 4 MPa
	066 6 MPa
	106 10 MPa
	166 16 MPa
	256 25 MPa
	406 40 MPa
	606 60 MPa
	107 100 MPa
	167 160 MPa
	257 250 MPa