Product Overview

The I2C pressure transducer (also referred to as a digital I2C pressure sensor or media-isolated pressure transducer with I2C output) is a compact, fully temperature-compensated pressure measurement module designed for direct digital integration. At its core is a fully 316L stainless steel diffused silicon sensing element, isolated from the measured media by a stainless steel diaphragm. The on-board signal processing circuit performs temperature compensation and converts the pressure signal into a calibrated digital output available over the I2C bus.
Unlike analog pressure transmitters that output 4-20mA or 0.5-4.5V signals requiring external ADC conversion and calibration coefficient management, this transducer delivers digital pressure data directly to the host microcontroller. The I2C interface simplifies system design, reduces component count, and eliminates the noise and drift issues associated with analog signal transmission. The 316L stainless steel wetted path ensures compatibility with corrosive media, while the constant-current and constant-voltage excitation with digitalcompensation maintains stability across the -10°C to +70°C compensated temperature range.
Available in gauge, absolute, and sealed gauge pressure types across 0.5 MPa to 50 MPa, the transducer adapts to a wide spectrum of industrial measurement tasks. Its ≤1 ms response time, 250% FS safe overload, and 300% FS burst pressure ratings provide robustness for dynamic and demanding applications. The compact housing and flexible lead wires (red: V+, black: V-, yellow: S+, blue: S-) enable straightforward installation in embedded systems, industrial automation equipment, and IoT-enabled pressure monitoring devices.

Product Advantages

Digital I2C Output: Industry-standard I2C interface delivers calibrated pressure data directly to MCUs, eliminating the need for external ADCs, signal conditioning, or analog filtering.

Fully 316L Stainless Steel Construction: The diffused silicon core, diaphragm, and wetted parts are entirely 316L stainless steel, providing excellent corrosion resistance for aggressive liquids and gases.

Three Pressure Types: Available in gauge, absolute, and sealed gauge configurations to match your reference pressure requirement without compromise.

Wide Pressure & Temperature Range: Covers 0.5 MPa to 50 MPa with operation from -40°C to +125°C and compensation from -10°C to +70°C for reliable performance across diverse conditions.

Fast Response ≤1 ms: Sub-millisecond response time supports dynamic pressure monitoring and control loop applications where timely data is essential.

Compact & Lightweight: Small footprint with a Ø10 mm pressure port and flexible PCB mounting enables integration into space-constrained embedded systems and portable devices.

Specifications

Product Type	I2C pressure transducer / digital pressure sensor
Sensing Core	Diffused silicon, fully 316L stainless steel
Pressure Range	0.5 MPa ~ 50 MPa (custom ranges available)
Pressure Types	Gauge, Absolute, Sealed Gauge
Output Interface	I2C digital output
Accuracy	±0.25% FS (typical); ±0.35% FS (maximum)
Compensated Temperature	-10°C ~ +70°C
Operating Temperature	-40°C ~ +125°C
Ambient Temperature	-40°C ~ +125°C
Response Time	≤ 1 ms
Safe Overload	250% FS
Burst Pressure	300% FS
Input Resistance	2 kΩ ~ 5 kΩ
Insulation Resistance	≥ 200 MΩ @ 250V DC
Diaphragm Material	316L stainless steel
Wetted Media	Corrosive media compatible with 316L stainless steel
Shock Resistance	150g (10 ms)
Service Life	1,000,000 pressure cycles
Electrical Connection	Lead wires: Red (V+), Black (V-), Yellow (S+), Blue (S-)
Pressure Port	Ø10 mm (see outline drawing)

Application

The I2C pressure transducer is engineered for systems where digital simplicity, media compatibility, and compact integration converge. Its I2C output and factory temperature compensation make it the preferred building block for embedded pressure sensing, IoT-connected monitoring devices, industrial automation controllers, and OEM instrumentation-applications that benefit from direct digital communication and the corrosion resistance of a fully 316L stainless steel wetted path.

Embedded pressure sensing

Industrial automation & control

IoT pressure monitoring devices

Portable instrumentation

Corrosive media pressure measurement

Hydraulic & pneumatic systems

Process control equipment

OEM sensor integration