The **M2SBS-B1B-R** is a specific part number typically associated with **M.2 (NGFF) SSD connectors** manufactured by vendors like JAE (Japan Aviation Electronics) or similar high-precision interconnect providers. These components are critical in modern computing for interfacing storage (SSDs) or wireless modules (Wi-Fi/BT) with the motherboard. --- ## 1. Component Overview This part is a **right-angle, surface-mount (SMT) connector** designed to hold M.2 cards. It serves as the physical and electrical bridge between the host PCB and the expansion module. ### Key Specifications | Feature | Description | | :--- | :--- | | **Connector Type** | M.2 (NGFF - Next Generation Form Factor) | | **Mounting Type** | Right Angle, Surface Mount (SMT) | | **Keying** | Typically B-Key or M-Key (check specific datasheet for 'B1B' suffix) | | **Number of Positions** | 67-pin (standard for M.2) | | **Pitch** | 0.50 mm | | **Height** | Usually low profile (e.g., 2.3mm or 3.2mm) | --- ## 2. Electrical & Mechanical Characteristics The "B1B-R" designation usually refers to specific packaging and height variations: * **Signal Integrity:** Designed for high-speed data transmission including PCIe Gen 3/4, SATA 3.0, and USB 3.0. * **Gold Plating:** Pins are typically gold-plated to ensure low contact resistance and prevent oxidation over long-term use. * **Retention:** Features side-latches or screw-down points (on the PCB) to ensure the card stays seated under vibration. * **Packaging (-R):** The "R" often signifies **Tape and Reel** packaging, intended for automated pick-and-place assembly lines. --- ## 3. Pinout & Keying Logic M.2 connectors use "Keys" (notches in the gold fingers) to prevent users from inserting the wrong type of card into a socket. ### Common Key Types 1. **B-Key:** Supports SATA, PCIe x2, SSDs, and WWAN cards. 2. **M-Key:** Supports PCIe x4 (NVMe), providing higher bandwidth for high-performance SSDs. 3. **E/A-Key:** Generally used for Wi-Fi and Bluetooth modules. --- ## 4. Hardware Implementation (Reference) When integrating this part into a PCB design, engineers must follow strict layout guidelines to maintain signal integrity. ```yaml PCB_Design_Constraints: Trace_Impedance: 100 Ohm Differential (PCIe) Via_Placement: Minimize stubs to prevent signal reflection Ground_Plane: Continuous reference plane directly beneath the connector Solder_Stencil: 0.10mm to 0.12mm thickness for 0.5mm pitch ``` ---