Uncompensated Package Sensor – RPD Series

The Merit Sensor RPD Series uncompensated packaged sensor is meant for the application of a broad range of pressures to the sensing element’s backside. The RPD is a flexible platform with exceptional media compatibility. Its small, compact design is perfectly suited for industrial and medical applications.

Company: MEMS piezoresistive pressure sensors are designed and fabricated at Merit Sensor’s Utah, USA engineering and fabrication facility. Merit Sensor focuses on the customization of technically better pressure sensors to solve customers’ pressure sensing requirements for the automotive, industrial, medical, and aerospace industries.

Technology: Merit Sensor utilizes a piezoresistive Wheatstone bridge with a chemically etched silicon diaphragm. The company’s products are all RoHS compliant.

Capabilities: Merit Sensor designs, engineers, fabricates, dices, assembles, and tests their products from a modern facility near Salt Lake City, Utah.

Features

Uncompensated, packaged pressure sensor

Typical average full scale output: 150 mV

Pressure Range: 0 to 500 psi (0 to 34.474 bar)

Temperature Range: -40 °C to +85 °C

Size: 7.6 x 8.9 x 6.6 mm

Media: Air, liquids, and gases (to be determined on an application-by-application basis with Merit engineering team)

Type: Backside gage

Excellent performance in both constant current and constant voltage applications

Designed for a soldered connection to ribbon cable, wires, or flex strip

Simple pressure source attachment and electrical connection

Customization: Pressure port, pressure range

Shipping: Tape and reel

Application Examples

Medical inflation

Industrial process control

Water pressure and flow management

RPD Series Part Number Configurator

Specifications

Parameter	Minimum	Typical	Maximum	Units	Notes
Electrical & Environmental
Excitation (In)		5	15	V	Maximum: 3 mA
Impedance	4000	5000	6000	Ω
Operating Temperature	-40		85	°C	Sentium^®technology
Storage Temperature	-55		100	°C
Performance
Offset	-10	0	10	mV/V	Zero pressure; gage only; @ 25 °C
Non-linearity	-0.2	0	0.2	% FSO	Best Fit Straight Line; @ 25 °C
Pressure Hysteresis	-0.1	0	0.1	% FSO	@ 25 °C
Temp Coeff – Zero	-25	0	25	μV/V/°C	-40 °C to 85 °C
Temp Coeff – Resistance	2300	2800	3300	PPM/°C	-40 °C to 85 °C
Temp Coeff – Sensitivity	-1500	-2200	-2500	PPM/°C	-40 °C to 85 °C
Thermal Hysteresis	-0.1	0	0.1	% FSO	Zero pressure
Burst Pressure	2X				Room Temperature
Full-Scale Output (@ 5 volts Excitation)
15 psi (1 bar; 103 KPa)	60	75	90	mV	Closed bridge only
50 psi (3.4 bar; 345 KPa)	100	125	150	mV
100 psi (6.9 bar; 689 KPa)	120	150	180	mV
300 psi (20.7 bar; 2068 KPa)	120	150	180	mV
500 psi (34.5 bar; 3447 KPa)	140	175	210	mV

Dimensions (millimeters)

Packaging And Shipping (millimeters)

Electrical

标签：Pressure Sensors

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