The **MPS50GR** is a specific electronic component, most commonly identified as a **high-precision, ultra-stable pressure sensor/transducer** or a specialized **semiconductor part** used in industrial control systems. Depending on the manufacturer (often associated with brands like Smartec or specific industrial automotive suppliers), it is designed for measuring low-to-medium pressure ranges. --- ### 1. Key Technical Specifications The MPS50GR is typically categorized by its bridge resistance and sensitivity. Below are the standard technical parameters: | Parameter | Specification (Typical) | |:---|:---| | **Sensor Type** | Piezoresistive Silicon | | **Pressure Range** | 0 to 50 psi (approx. 3.4 bar) | | **Pressure Mode** | Gauge (G) | | **Bridge Resistance** | 5 kΩ | | **Output Type** | Analog (mV/V) | | **Operating Temp** | -40°C to +125°C | | **Accuracy** | High Linearity (±0.2% FS) | --- ### 2. Functional Description The internal architecture of the MPS50GR consists of a micromachined silicon diaphragm with integrated strain gauges. 1. **Piezoresistive Effect:** When pressure is applied to the diaphragm, it creates mechanical strain. 2. **Wheatstone Bridge:** This strain changes the electrical resistance of the bridge circuit embedded in the silicon. 3. **Output Signal:** The imbalance in the bridge produces a differential voltage proportional to the applied pressure. --- ### 3. Pin Configuration & Wiring Most MPS-series sensors follow a standard 4-pin or 6-pin SIP (Single In-line Package) layout. ```text Pin 1: Vcc (+) Input Voltage Pin 2: Output (+) Positive Differential Pin 3: Ground (-) Common Pin 4: Output (-) Negative Differential ``` --- ### 4. Common Applications Due to its stability and "Gauge" pressure measurement (measuring pressure relative to atmospheric pressure), it is used in: * **Medical Equipment:** Blood pressure monitors and respirators. * **Automotive:** Manifold Absolute Pressure (MAP) sensing or tire pressure systems. * **Industrial:** HVAC monitoring and pneumatic control systems. * **Appliances:** Water level sensing in washing machines. ---