The **M3V16V2AJ-R** is a specific surface-mount (SMD) aluminum electrolytic capacitor. This component is designed for high-density surface mounting on printed circuit boards (PCBs) and is commonly used in power management and filtering applications. --- ### 1. Technical Specifications Below are the primary electrical and physical characteristics of the M3V16V2AJ-R: | Parameter | Specification | | :--- | :--- | | **Capacitance** | 2.2 µF | | **Rated Voltage** | 16 V DC | | **Tolerance** | ±20% (at 120Hz, 20°C) | | **Type** | Aluminum Electrolytic (Polarized) | | **Package / Case** | SMD (V-Chip) - Size Code A | | **Dimensions** | 3.0 mm (Diameter) x 5.4 mm (Height) | | **Operating Temperature** | -40°C to +85°C | | **Packaging** | Tape & Reel (indicated by the "-R" suffix) | --- ### 2. Key Features and Construction * **V-Chip Design:** The "V" in the series name typically refers to the vertical chip construction, allowing it to be soldered directly to the surface of a PCB using automated pick-and-place machinery. * **Polarization:** As an electrolytic capacitor, it is polarized. The negative terminal is usually marked with a black stripe on the top of the aluminum can. * **Reflow Soldering:** Designed to withstand the high temperatures of infrared or convection reflow soldering processes. --- ### 3. Part Number Breakdown (Typical) While naming conventions vary slightly by manufacturer (such as Lelon, ELNA, or niche brands), the code generally follows this logic: * **M3:** Series identifier (often denoting standard life or specific impedance characteristics). * **16V:** Rated working voltage (16 Volts). * **2AJ:** Capacitance code. The "2" and "A" represent the significant digits, and "J" or the multiplier indicates 2.2 microfarads. * **-R:** Packaging code, denoting **Tape & Reel** for automated assembly. --- ### 4. Common Applications Due to its small form factor and 16V rating, this part is frequently found in: 1. **Consumer Electronics:** Decoupling in portable audio players or handheld devices. 2. **Telecommunications:** Noise filtering in low-voltage signal lines. 3. **DC-DC Converters:** Smoothing output ripples in small-scale power supplies. ---