The **61S-161-R** is a specific part number typically associated with **pressure sensors or transducers**, often manufactured by companies like **Sensata/Kavlico** or specialized automotive electronic suppliers. These components are primarily used to monitor hydraulic or pneumatic pressures in industrial and automotive applications. --- ### ## Technical Specifications Overview The electronic components within this assembly are designed for durability and signal precision. | Feature | Specification Details | | :--- | :--- | | **Sensor Type** | Piezoresistive or Ceramic Capacitive | | **Input Voltage** | Typically 5V DC (Regulated) | | **Output Signal** | 0.5V to 4.5V Ratiometric (Standard) | | **Pressure Range** | Varies by sub-model (often 0-100 to 0-500 PSI) | | **Connector Type** | Integrated Packard/Metri-Pack or similar sealed connector | | **Housing Material** | Stainless Steel or Brass | --- ### ### Internal Electronic Components The "brains" of the 61S-161-R consist of three main electronic layers: 1. **Sensing Element:** * Usually a micro-machined silicon strain gauge or a ceramic diaphragm. * When pressure is applied, the physical deformation changes the electrical resistance of the bridge circuit (Wheatstone Bridge). 2. **ASIC (Application-Specific Integrated Circuit):** * The raw signal from the sensing element is extremely small (millivolts). * The internal ASIC amplifies this signal and provides **Temperature Compensation** to ensure the reading remains accurate even as the engine or machine heats up. 3. **EMC/RFI Protection:** * The internal PCB contains capacitors and metal-oxide varistors (MOVs) to protect the sensor from Electromagnetic Interference (EMI) and voltage spikes common in industrial environments. --- ### ### Wiring and Pinout Configuration Most 61S series sensors utilize a 3-pin configuration to interface with an ECU (Engine Control Unit) or PLC (Programmable Logic Controller). ```yaml Pin A: Ground (GND) Pin B: Supply Voltage (+5V DC) Pin C: Output Signal (Vout) ``` --- ### ### Common Applications * **HVAC Systems:** Monitoring refrigerant pressure. * **Automotive:** Transmission fluid pressure or oil pressure sensing. * **Hydraulics:** Monitoring load sensing lines in heavy machinery.