China Factory Manufacturing High Pressure Pressure-Sensitive Elements 6-250MPa Sputtered Thin Film Varistor Chip

• Customization: Available
• Type: Piezoresistive Pressure Sensor
• Component: Mechanical Structure Type
• Model NO.: QTB251
• For: Strain Gauge Pressure Transmitter
• Output Signal Type: Analog Type
• Production Process: Injection
• Material: Stainless Steel
• Thread Type: G
• Wiring Type: Four-Wire
• Measuring Medium: Liquid
• IP Rating: IP65
• Certification: RoHS
• Customized: Non-Customized
• Pressure Range: 6MPa~250MPa
• Power Supply: 2-10VDC
• Customized Support: Oemodm
• Supply Ability: 50000 Piece/Pieces Per Month
• Pressure Type: Gauge Pressure, Absolute Pressure
• Accuracy: 0.05%F.S0.1%F.S.0.2%F.S0.5%F.S
• Overload: 200%F.S/300%F.S
• Ouunnt: Mv
• Long-Term Stabilty: 0.2%F.S/Year
• Warranty: 1years
• Work Temperature: -40~+105c or by Customized
• Model Number: Qtb251
• Trademark: chntek
• Origin: China
• HS Code: 9026209000
• Production Capacity: 50000 Piece/Pieces Per Month

Product Description

Product Description

• Product performance description

The QTB251 Pressure Sensitive Element is a high stability pressure measuring element with stainless steel structure. It is made
of 17-4PH stainless steel and has a maximum diameter of Φ7.5. Using CVD and PVD technology, the sensitive element is generated directly on the stainless steel elastomer, enabling highly accurate measurement of pressure. The measured pressure is transferred to the pressure sensitive chip through the elastomer, realizing the conversion of pressure to electrical signal.

 

Details Images

QTB251 products have undergone a rigorous quality inspection process on our automated production line, and have been repeatedly tested, with stable and reliable performance. The product can be widely used in a variety of high-demand pressure measurement occasions.

 

Range from 0-6MPa to 0-250MPa (0-60Bar to 0-2500Bar)
Gauge pressure and absolute pressure available
Constant-current and constant-voltage power supply optional
Full 17-4PH stainless steel structure
Long-term stability (1 year) of ±0.2%FS

Elastomer material: 17-4PH stainless steel
Welding pad material: Nickel or gold
Net weight: About 1g

Insulation resistance: 500MΩ (DC 500V)
Overload pressure: 200%FS /300%FS or ≤400MPa (take the minimum)

Power supply: ≤ 2.0mA DC (constant current), ≤ 10V DC (constant voltage)
Input impedance: 2.5K-5K
Output impedance: 4.5±0.5K
Response time: 1ms
 

Product Usage

•  

Electrical connection: gold wire ball bonding, aluminum wire wedge bonding or soldering iron welding.

Specifications

 

Models	QTB251		QTB351 or QTB352 or SFA351 (without step)
Measuring range(MPa)	6MPa~250MPa		0.5MPa~250MPa
Measuring medium	Gases, liquids compatible with stainless steel		Gases, liquids compatible with stainless steel
Pressure type	Gauge pressure, absolute pressure		Gauge pressure, absolute pressure
Accuracy	±0.2%F.S,±0.5%F.S ,±1%F.S		±0.03%F.S,±0.05%F.S,±0.1%F.S,±0.2%F.S,±0.5%F.S,±1%F.S
Working temp.	-40~+105ºC or by customized		-40~+105ºC or by customized
Long-term stability	±0.1%F.S/year,±0.2%F.S/year		±0.2%F.S/year
Non-linearity	±0.1%F.S/year, ±0.15%F.S/year		±0.1%F.S,±0.15%F.S,±0.2%F.S,±0.3%F.S,±0.4%F.S,±0.5%F.S,±0.6%F.S
Hysteresis	±0.1%FS		±0.1%FS
Repeatability	0.1%FS		0.1%FS
Sensitivity	1.5±0.20mV/V,1.7±0.20mV/V		1.3±0.10mV/V,1.4±0.2mV/V,1.5±0.10mV/V,1.7±0.20mV/V
Burst pressure	1000%~2000%F.S (the max is ≤400MPa)		1000%~4000%F.S (the max is ≤400MPa)
Allowable overload	200%~300%F.S or by customized		200%~300%F.S or by customized
Zero point temp. drift	±0.01%F.S/ºC		±0.01%F.S/ºC
Full range temp. drift	±0.03%F.S/ºC		±0.03%F.S/ºC
Response time	≤0.1ms		≤0.1ms
High reliability	Resistant to 10 million shocks, can be continuously pressurized		Resistant to 10 million shocks, can be continuously pressurized
Insulation resistance	≥1000MΩ/500VAC		≥1000MΩ/500VAC
Material	17-4PH		17-4PH
Dimensions	Top Part Diameter	Φ5mm	Top Part Diameter	Φ7mm
	Outer Ring Diameter	Φ7.5mm	Outer Ring Diameter	Φ9.5mm
	Base Diameter	Φ5mm	Base Diameter	Φ7mm
	Height	5mm	Height	5mm
Weight	1g		1g

Packing&Shipping

Global Express door to door service

Company Introduction

Hunan Chntek Sensor Technology Co., Ltd. is a special semi-conductor company in Hunan, China. It is near the Changsha Huanghua International Airport, and focuses on the metal-based sputtering thin film pressure-sensitive elements and related pressure sensors.Its manufactory has 100 class cleaning factory buildings of 6000 square meters, in which there is a production line of pressure-sensitive elements and a fully automatic packaging line of the pressure sensors.
Its products have many advantages such as high stability, high reliability, small size, high accuracy, fast response time, small temperature drift, etc., and have obtained the CE and RoHS certifications. The elements adopt the stainless steel as the substrate, so they have the excellent flexibility and toughness, can overload 2-3 times and work stably a long time and are suitable for the almost all kinds of environments,Thus, the sensors are suitable for the construction machinery, the various engines, the pipeline network monitoring and the industrial controlling.
With the professional technical support team, the efficient sales team and the competitive price, it has been the first supplier for many famous manufacturers in China.

Our Services & Strength

We have seventeen-year's experience in production and R&D, and ownes 50+ patents. It can customize the production for the pressure-sensitive elements and accept the patterns of OEM and ODM. It can provide a large production capacity at least 10,000 pressure-sensitive elements and 5,000 pressure sensors per day.

Certifications

FAQ

Q1 Are you the manufacturer or a distributer? A1 We are the manufacturer with full intellectual property rights for our products. With experienced R&D team, we are able to provide high quality products and services. Q2 Can you accept OEM or ODM service? A2 Yes, we can design and manufacture products to your specifications or produce them to your design. We can put your company name and logo on our products. Q3 How about the MOQ? A3 For most of our products, MOQ is 1 piece. Q4 Can you provide samples? A4 Yes, we can provide samples for a fee, with a maximum of 10 pcs per request. Q5 How about the Shipping Method? A2: DHL, UPS, TNT, FedEx and any air or ship shipments you wanted are all available.