The **M2AMS-161-R/N** is a specific electronic component typically categorized as a **Micro-USB 2.0 Connector (Type B)**, designed for surface mount technology (SMT) and through-hole mounting combinations (Mid-mount or Hybrid). Below is a detailed breakdown of its electronic and mechanical parts. --- ### 1. Key Technical Specifications The following table outlines the core electronic and physical attributes of the connector: | Feature | Specification | | :--- | :--- | | **Connector Type** | Micro USB Type B (2.0) | | **Gender** | Receptacle (Female) | | **Mounting Type** | Mid-Mount / SMT + DIP | | **Number of Pins** | 5 Pins (VCC, D-, D+, ID, GND) | | **Current Rating** | 1.8A (Pin 1 & 5), 0.5A (Other pins) | | **Voltage Rating** | 30V AC/DC | | **Contact Resistance** | 30mΩ Max | | **Insulation Resistance** | 100MΩ Min | --- ### 2. Structural Components The part is composed of four primary elements that define its performance: #### A. The Contacts (Pins) * **Material:** Usually Phosphor Bronze or Copper Alloy. * **Plating:** Gold plating on the contact area (to prevent oxidation and ensure conductivity) and Tin plating on the solder tails. * **Function:** Conducts electrical signals and power between the cable and the PCB. #### B. The Insulator (Housing) * **Material:** High-temperature thermoplastic (e.g., LCP - Liquid Crystal Polymer). * **Function:** Provides structural support for the pins and ensures electrical isolation between them. It is designed to withstand "Reflow Soldering" temperatures (approx. 260°C). #### C. The Metallic Shell * **Material:** Stainless Steel or Nickel-plated Brass. * **Function:** Provides Electromagnetic Interference (EMI) shielding and mechanical durability. The "R/N" designation often refers to specific shell features like grounding tabs or "No-Ear/With-Ear" mounting styles. #### D. Solder Tabs/Legs * **Function:** These are the physical anchors that secure the part to the PCB. In mid-mount versions, these legs sit at a specific offset to allow the connector to sit "inside" a cutout in the circuit board, reducing the overall profile height of the device. --- ### 3. Application Circuit Diagram (Standard USB 2.0) When integrating this part into a circuit, the pinout follows the standard Micro-USB protocol: ```python # Standard Pin Mapping Pin_1 = "VBUS (+5V Power)" Pin_2 = "D- (Data Negative)" Pin_3 = "D+ (Data Positive)" Pin_4 = "ID (On-The-Go identification)" Pin_5 = "GND (Ground)" Shield = "Chassis Ground / EMI Protection" ``` --- ### 4. Part Number Breakdown (Typical) While naming conventions vary by manufacturer (often associated with brands like **Molex**, **Amphenol**, or **JAE** equivalents), the code usually breaks down as: * **M2AMS:** Series Identifier (Micro USB 2.0). * **161:** Specific model/height configuration. * **R:** Usually indicates "Reversed" orientation or "Tape & Reel" packaging. * **N:** Indicates "Nickel" plating or a specific "No-ear" shell design.