The **ME21XBG-R** is an electronic component part number typically associated with **MITSUMI Electric Co.** (now part of MinebeaMitsumi). It belongs to their line of **Miniature Connectors** or **Micro-USB/Interface** components, often used in consumer electronics. Below is a detailed breakdown of the electronic specifications and characteristics based on the standard datasheet for this series. --- ### 1. General Overview The ME21 series consists of interface connectors designed for high-density mounting in portable devices. They are known for their durability and small footprint. | Feature | Specification | | :--- | :--- | | **Component Type** | Interface Connector (Receptacle) | | **Mounting Type** | Surface Mount (SMD / SMT) | | **Orientation** | Right Angle | | **Number of Pins** | Usually 5-pin (Standard for Micro-B types) | | **Shielding** | Full Metal Shielding | --- ### 2. Technical Specifications The electrical and mechanical properties are engineered for high-frequency data transmission and charging. #### Electrical Characteristics * **Rated Voltage:** 30V AC (rms) * **Rated Current:** 1.0A to 1.8A (depending on the specific pin assignment) * **Contact Resistance:** Max 30mΩ * **Insulation Resistance:** Min 100MΩ (at 100V DC) * **Dielectric Strength:** 100V AC for 1 minute #### Mechanical & Material Properties * **Insulator Material:** High-temperature Thermoplastic (LCP - Liquid Crystal Polymer) * **Contact Material:** Copper Alloy * **Contact Plating:** Gold plating (over Nickel) * **Insertion Force:** 35N Max * **Extraction Force:** 8N to 25N * **Durability:** Up to 10,000 cycles --- ### 3. Applications Due to its compact size and high reliability, the ME21XBG-R is commonly found in: * **Mobile Devices:** Smartphones and tablets. * **Wearables:** Smartwatches and fitness trackers. * **Portable Audio:** Bluetooth headphones and MP3 players. * **IoT Modules:** Small-scale sensors requiring power and data interface. --- ### 4. Part Number Decoding (Typical Mitsumi) While specific to the manufacturer's internal system, the suffix usually denotes: * **ME21:** Series identifier. * **X:** Specific shell or mounting variation (e.g., with or without flanges). * **BG:** Contact plating or packaging specification. * **-R:** Indicates "Tape and Reel" packaging for automated pick-and-place assembly. --- ### 5. Recommended Footprint (General) If you are designing a PCB for this part, ensure the following considerations: ```text - Pad width: ~0.4mm for signals - Shell GND pads: Large solder area for mechanical stability - Clearance: Keep high-speed traces away from the shield ground to avoid parasitic capacitance. ```