The **M2PP-27R-R/Q** is a high-precision, miniature pressure sensor part of the **M2PP series** manufactured by **Nidec Components** (formerly Nidec Copal Electronics). It is primarily designed for applications requiring high accuracy and a compact footprint, such as industrial automation and medical equipment. --- ### 1. Component Specifications The following table outlines the core electronic and physical characteristics of this specific model: | Attribute | Specification | | :--- | :--- | | **Pressure Type** | Gauge Pressure (Positive) | | **Rated Pressure Range** | 0 to 27 kPa (Approx. 3.9 PSI) | | **Input Voltage** | 5.0 VDC ± 0.5 V | | **Output Type** | Analog Voltage (Ratiometric) | | **Output Range** | 0.5 V to 4.5 V | | **Operating Temp** | -20°C to +70°C | | **Media Type** | Non-corrosive gas / Dry air | --- ### 2. Key Internal Electronic Parts The sensor operates through a series of integrated electronic stages: 1. **Piezoresistive Sensing Element:** The "heart" of the device is a silicon micromachined (MEMS) diaphragm with integrated resistors. When pressure is applied, the diaphragm deforms, changing the resistance (the Piezoresistive effect). 2. **ASIC (Application Specific Integrated Circuit):** The raw signal from the MEMS bridge is extremely small. The internal ASIC performs: * **Amplification:** Boosting the millivolt signal to a usable 0.5V–4.5V range. * **Temperature Compensation:** Correcting for drift caused by thermal changes. * **Linearization:** Ensuring the output voltage is a straight-line representation of the pressure. 3. **Circuit Protection:** Includes internal filters to provide EMI (Electromagnetic Interference) resistance and overvoltage protection. --- ### 3. Part Number Breakdown (Suffix Meaning) The specific code **M2PP-27R-R/Q** identifies its configuration: * **M2PP:** Series Name (Miniature Pressure Sensor). * **27:** Pressure range (27 kPa). * **R:** Gauge pressure (Relative). * **R/Q:** Typically denotes specific packaging/terminal configurations (e.g., Lead-free, RoHS compliant, or specific pin-out orientation). --- ### 4. Typical Wiring Diagram The device usually features a 3-pin or 4-pin interface. Below is the standard electronic connection: ```markdown Pin 1: Vcc (+5V Power Supply) Pin 2: Vout (Analog Signal Output) Pin 3: GND (Ground) ``` ---