NPA-730B-030D

Pressure Sensors Transducers Overview

The NPA-730B-030D is a board-mount differential pressure sensor from the NPA-730 series by Amphenol Advanced Sensors. It features a 14-bit digital I2C output and operates within a supply voltage range of 3.135V to 3.465V. The device has a working pressure of 30 PSI (206.84 kPa) with a maximum pressure rating of 60 PSI (413.69 kPa). Accuracy is specified at ±1.5%. It utilizes a 14-SOIC package with top dual barbed ports (0.12 inch/3mm) and supports surface mount installation. The operational temperature range spans from -40°C to +125°C.

Pressure Sensors Transducers Feature Summary

• Integrates a MEMS-based sensing element with an integrated signal conditioning ASIC for digital processing.
• Provides calibrated and temperature-compensated digital output via a standard I2C interface.
• Features a compact surface-mount SOIC package with integrated barbed ports for direct tubing connection.
• Includes on-chip calibration data stored in non-volatile memory for high accuracy without external trimming.

Pressure Sensors Transducers Applications

• Medical gas monitoring systems
• Infusion pump flow control
• Ventilator airway pressure measurement
• Laboratory analytical instrumentation

Pressure Sensors Transducers Procurement Notes

Verify the specific suffix 'D' against the manufacturer's current datasheet to confirm port configuration and pinout compatibility. Ensure the I2C address matches the system design requirements, as some variants may have fixed addresses. Confirm that the 3.3V logic levels are compatible with the host microcontroller. Check for any recent Product Change Notices (PCN) regarding material or process updates that might affect mechanical dimensions or electrical characteristics.

Pressure Sensors Transducers Selection Notes

Select this model when a digital I2C interface is required for low-pressure differential measurements up to 30 PSI. It is suitable for applications demanding high accuracy (±1.5%) and wide temperature stability (-40°C to +125°C). Compare with analog counterparts if lower cost is prioritized over digital integration. Consider the NPA-700 series if 5V operation is mandatory instead of 3.3V. Evaluate the physical size constraints of the 14-SOIC package against available PCB real estate.

Pressure Sensors Transducers Part Context

This component belongs to the NPA-730 series of MEMS pressure sensors, designed for low-pressure applications requiring digital output. It complements the NPA-700 series, which typically offers 5V operation, while maintaining similar form factors and accuracy standards. The series is targeted at healthcare and industrial markets where reliable, compact pressure sensing is critical. It shares the same SOIC footprint family with other NPA variants, facilitating potential design-in flexibility across different pressure ranges.

Pressure Sensors Transducers Replacement Considerations

Direct substitutes include NPA-730B-015A for lower pressure ranges or NPA-730B-030G for gauge pressure configurations. Verify pinout compatibility before swapping. Analog alternatives like the NPA-300B-030D require additional ADC circuitry. Cross-reference with NPA-700B-030D only if 5V supply is acceptable and I2C timing remains compatible.