The **M2CEC-26002-R** is a specific electronic hardware component, typically identified as an **M.2 (NGFF) Connector**. These parts are foundational in modern computing for interfacing high-speed storage (SSDs) and communication modules (Wi-Fi/Bluetooth) with a motherboard or PCB. Below is a detailed breakdown of its electronic characteristics and specifications. --- ### 1. General Specifications The part is designed for surface-mount technology (SMT) and follows the industry-standard M.2 physical interface specifications. | Attribute | Specification | | :--- | :--- | | **Component Type** | M.2 (NGFF) Card Edge Connector | | **Mounting Type** | Surface Mount (SMT / SMD) | | **Number of Positions** | 67 Pins | | **Pitch** | 0.50 mm | | **Orientation** | Right Angle / Horizontal | | **Height** | Typically 2.6mm (varies by sub-series) | | **Contact Plating** | Gold (Flash or selective) | --- ### 2. Key Physical Components The connector consists of three main electronic/structural parts: 1. **Insulator Body:** Made of high-temperature thermoplastic (e.g., LCP - Liquid Crystal Polymer) to withstand reflow soldering temperatures. 2. **Copper Alloy Contacts:** The "pins" that create the electrical bridge between the M.2 card and the PCB. These are usually plated with gold over nickel to prevent oxidation and ensure low contact resistance. 3. **Solder Pegs/Tabs:** Metal tabs on the sides of the housing that provide mechanical stability, ensuring the connector doesn't rip off the board when a card is inserted or removed. --- ### 3. Electrical Performance To support high-speed data protocols like **PCIe Gen 3/4**, **SATA 3.0**, and **USB 3.0**, the electronic design must meet strict requirements: * **Current Rating:** Typically 0.5A per pin. * **Voltage Rating:** 50V AC/DC. * **Contact Resistance:** Max 50mΩ (to ensure minimal signal loss). * **Dielectric Withstanding Voltage:** 300V AC for 1 minute. * **Signal Integrity:** Designed with impedance matching (usually 100Ω differential) to minimize EMI (Electromagnetic Interference) and crosstalk. --- ### 4. Application and Keying The "26002" designation often refers to the specific height and keying. M.2 connectors use "Keys" (notches) to prevent incompatible devices from being plugged in. * **Key M:** Common for NVMe High-Speed SSDs. * **Key B:** Common for SATA SSDs or Cellular (LTE/5G) modules. * **Key E/A:** Common for Wireless (Wi-Fi/BT) cards. --- ### 5. PCB Footprint Example When designing a circuit board for this part, the CAD footprint usually follows this logic: ```c // Conceptual SMD Pad Layout for 0.5mm Pitch [Pad 1] [Pad 3] [Pad 5] ... (Top Row) -------------------------------------- [Pad 2] [Pad 4] [Pad 6] ... (Bottom Row) ``` *Note: The physical layout involves staggered leads to accommodate the high density of 67 pins in a small 22mm width.*