The **M8PA1-B44-R** is a specific part number typically associated with high-performance electronic connectors or cable assemblies, often used in industrial automation and sensor applications. Below is a detailed breakdown of its electronic and mechanical characteristics. --- ### 1. General Specifications The part belongs to the **M8 series**, which is an industry-standard circular connector system known for its compact size and reliability in harsh environments. | Feature | Specification | | :--- | :--- | | **Connector Type** | M8 Circular Connector | | **Gender** | Female (Socket) | | **Orientation** | Right-Angle (R-suffix) | | **Number of Pins** | 4-Pin | | **Coupling Type** | Screw-locking (Threaded) | | **Protection Rating** | Typically IP67 / IP68 (Dust & Water resistant) | --- ### 2. Electrical Characteristics These parts are designed for low-power signal transmission and DC power supply for sensors. * **Rated Voltage:** Usually up to 30V AC/DC (Standard for 4-pin M8). * **Rated Current:** Typically 3A to 4A per contact. * **Contact Resistance:** < 10 mΩ. * **Insulation Resistance:** > 100 MΩ. --- ### 3. Material Composition The "electronic parts" within this assembly are chosen for durability and conductivity. | Component | Material | Function | | :--- | :--- | :--- | | **Contacts** | Brass / Bronze with Gold Plating | Ensures high conductivity and prevents oxidation. | | **Housing/Body** | TPU (Thermoplastic Polyurethane) | Provides insulation and structural integrity. | | **Coupling Nut** | Nickel-plated Brass | Secures the connection and provides EMI shielding. | | **O-Ring** | FKM or Viton | Provides the environmental seal (IP rating). | --- ### 4. Part Number Breakdown (Nomenclature) While exact prefixes can vary by manufacturer (such as Murrelektronik or Phoenix Contact), the code usually breaks down as follows: * **M8:** The thread size/series (8mm diameter). * **PA:** Potted or Pre-assembled (refers to the internal molding). * **1:** Code for specific pin configuration or keying (A-coding is standard for sensors). * **B44:** Usually denotes the 4-pole configuration and specific cable/wire gauge compatibility. * **R:** Right-angle orientation (as opposed to 'S' for Straight). --- ### 5. Common Applications * **Proximity Sensors:** Connection for inductive or capacitive sensors. * **Actuators:** Powering small solenoid valves. * **Robotics:** Compact wiring in robotic arms where space is limited. * **I/O Boxes:** Connecting field devices to PLC distribution blocks.