# SDP31-500Pa (Component) ## Description Pressure Sensor -0.07PSI ~ 0.07PSI (-0.5kPa ~ 0.5kPa) Differential Male - 0.08" (2.00mm) Tube, Dual 16b 16-SMD Module, Dual Top Ports The SDP31-500PA belongs to the SDP3x series and uses Sensirion’s CMOSens® technology to deliver accurate and stable pressure measurements. It is optimized for applications where small size, fast response, and high accuracy are critical. This sensor measures bidirectional differential pressure up to ±500 Pa, making it suitable for airflow and gas flow monitoring systems. It provides a fully calibrated, temperature-compensated digital output via I²C, simplifying integration with microcontrollers. Pressure type: Differential (±500 Pa range) High accuracy: حوالي ±3% of measured value Digital output: I²C interface with 16-bit resolution Fast response time: suitable for real-time measurements No zero-point drift: ensures long-term stability Compact size: ~8.5 × 5.5 × 5.15 mm Low voltage operation: typically 3.0–3.6 V Temperature compensated: reliable from −40°C to +85°C #CommonPartsLibrary #Sensor #SDP3x ## Component Details - **Owner:** adrian95 - **Created:** 4/16/2026 - **Last Updated:** 4/16/2026 - **Visibility:** Public - **Manufacturer Part Number:** SDP31-500Pa - **Manufacturer Name:** Sensirion - **Part Type:** Sensors - **License:** https://creativecommons.org/licenses/by/4.0/ - **Datasheet URL:** https://sensirion.com/media/documents/4D045D69/6375F34F/DP_DS_SDP3x_digital_D1.pdf - **Used in:** 9 projects - **Part Type:** Sensors - **MPN:** SDP31-500Pa - **Mount Type:** Surface Mount - **Package / Case Code:** SMD - **Pin Count:** 18 ## Pins | Pin | Name | Type | |-----|------|------| | 1 | GND_1 | | | 2 | GND_2 | | | 3 | GND_3 | | | 4 | IRQN | | | 5 | SCL | | | 6 | GND_4 | | | 7 | VDD | | | 8 | SDA | | | 9 | ADDR | | | 10 | GND_5 | | | 11 | GND_6 | | | 12 | RESERVED._DO_NOT_CONNECT_1 | | | 13 | RESERVED._DO_NOT_CONNECT_2 | | | 14 | RESERVED._DO_NOT_CONNECT_3 | | | 15 | RESERVED._DO_NOT_CONNECT_4 | | | 16 | RESERVED._DO_NOT_CONNECT_5 | | | 17 | EP_1 | | | 18 | EP_2 | | --- *Generated from [https://www.flux.ai/adrian95/sdp31-500pa](https://www.flux.ai/adrian95/sdp31-500pa)*