Pressure Sensors, Transducers

Part Number	Description / PDF	Quantity
P51-50-S-A-I36-4.5V-000-000 SSI Technologies, Inc.	SENSOR 50PSIS 1/4NPT 4.5V	0
P51-1000-S-A-I36-4.5V-000000 SSI Technologies, Inc.	SENSOR 1000PSIS 1/4NPT 4.5V	29
P51-100-G-B-I36-4.5OVP-000-000 SSI Technologies, Inc.	SENSOR 100PSIG 1/8NPT 4.5V	0
P51-50-G-B-M12-20MA-000-000 SSI Technologies, Inc.	SENSOR 50PSI 1/8-27NPT 4-20MA	5
P51-15-G-UB-I36-20MA-000-000 SSI Technologies, Inc.	SENSOR 15PSIG 1/8NPT 20MA	11
P51-100-A-B-I36-4.5OVP-000-000 SSI Technologies, Inc.	SENSOR 100PSIA 1/8NPT 4.5V	0
MG1-200-A-9V-R SSI Technologies, Inc.	SENSOR DIGITAL GAUGE 200PSI LCD	24
P51-15-A-UC-I36-4.5OVP-000-000 SSI Technologies, Inc.	SENSOR 15PSIA 1/4NPT 4.5V	0
MG-750-A-MD-R SSI Technologies, Inc.	SENSOR DIGITAL GAUGE 750PSI LCD	0
MG-300-B-9V-R SSI Technologies, Inc.	SENSOR 300 PSI 1/8 NPT 9V	0
P51-100-S-B-I36-4.5V-000-000 SSI Technologies, Inc.	SENSOR 100PSIS 1/8NPT 4.5V	0
P51-100-A-A-I36-4.5V-000-000 SSI Technologies, Inc.	SENSOR 100PSIA 1/4NPT 4.5V	5
P51-15-S-UB-I36-5V-000-000 SSI Technologies, Inc.	SENSOR 15PSIS 1/8NPT 5V	0
P51-1000-S-A-I36-20MA-000-000 SSI Technologies, Inc.	SENSOR 1000PSIS 1/4NPT 20MA	0
P51-100-S-A-I36-4.5OVP-000-000 SSI Technologies, Inc.	SENSOR 100PSIS 1/4NPT 4.5V OVP	0
P51-50-G-B-I36-4.5V-000-000 SSI Technologies, Inc.	SENSOR 50PSIG 1/8NPT 4.5V	7
P51-3-G-UB-I36-4.5V-000-000 SSI Technologies, Inc.	SENS 3PSIG 0.5-4.5 V 1/8-27 NPT	2
P51-100-G-A-I36-20MA-000-000 SSI Technologies, Inc.	SENSOR 100PSIG 1/4NPT 20MA	22
P51-50-G-B-I36-20MA-000-000 SSI Technologies, Inc.	SENSOR 50PSIG 1/8NPT 20MA	6
P51-1000-A-B-I36-4.5OVP-000-000 SSI Technologies, Inc.	SENSOR 1000PSIA 1/8NPT 4.5V	0

Pressure Sensors, Transducers

1. Overview

Pressure sensors and transducers are devices that convert mechanical pressure signals into electrical outputs. They serve as critical components in monitoring and controlling pressure in various systems. Modern industrial automation, medical diagnostics, and automotive safety systems rely on their precise measurements to ensure operational efficiency and safety.

2. Main Types and Functional Classification

Type	Functional Characteristics	Application Examples
Strain Gauge	High accuracy, stable output, requires bridge circuit	Industrial machinery, load cells
Piezoresistive	Miniaturized design, high sensitivity, temperature-dependent	Medical blood pressure monitors
Capacitive	Low power consumption, corrosion-resistant, nonlinear output	Aerospace altitude sensors
Piezoelectric	Self-generating, dynamic pressure measurement	Engine combustion analysis
Optical Fiber	Immune to EMI, suitable for harsh environments	Oil well downhole monitoring

3. Structure and Components

Typical components include:

Pressure port (stainless steel/ceramic diaphragm)
Sensing element (MEMS silicon chip, strain gauge)
Signal conditioning circuit (amplifier, ADC)
Output interface (4-20mA, I2C, CANbus)
Environmental sealing (IP67 rating standard)

4. Key Technical Specifications

Parameter	Importance
Measurement Range (0-10kPa to 0-100MPa)	Determines operational limits
Accuracy ( 0.1% FS to 2% FS)	Impacts system reliability
Output Signal (Analog/digital)	Affects compatibility with control systems
Temperature Range (-40 C to +150 C)	Defines environmental adaptability
Response Time (1ms to 100ms)	Critical for dynamic pressure monitoring

5. Application Fields

Major industries:

Industrial Automation (hydraulic system monitoring)
Automotive (engine MAP sensors, TPMS)
Medical (ventilator pressure control)
Aerospace (flight control surface pressure)
Consumer Electronics (smartwatches for altitude tracking)

6. Leading Manufacturers and Products

Manufacturer	Representative Product
Honeywell	PPT0010 (0-10psi MEMS sensor)
Bosch Sensortec	BMP580 (barometric pressure sensor)
TE Connectivity	PPT0001NN1A3 (high-temperature sensor)
WIKA	A-1100.75 (industrial process sensor)
Omron	D6F-PH (low-pressure airflow sensor)

7. Selection Guidelines

Key considerations:

Pressure range with 20% safety margin
Environmental factors (temperature, vibration)
Signal compatibility (analog/digital requirements)
Material selection for corrosive environments
Cost vs. long-term stability trade-offs

8. Industry Trends

Emerging developments:

MEMS integration for miniaturization
Wireless pressure sensing nodes
AI-enabled predictive maintenance systems
New materials like graphene for ultra-sensitive detection
Energy-harvesting self-powered sensors