The **MA2HFAG-R** is a specific electronic component, primarily known as a **Power Inductor** manufactured by **Coilcraft**. It belongs to the **MA series**, which is designed for high-frequency DC-DC converters and compact electronic applications. ### 1. Technical Specifications The following table highlights the primary electrical characteristics of the MA2HFAG-R: | Parameter | Specification | Details | | :--- | :--- | :--- | | **Inductance** | 2.2 µH | Nominal value at 1 MHz | | **Current Rating (Isat)** | ~1.4 - 1.8 A | Saturation current (30% drop in inductance) | | **Current Rating (Irms)** | ~1.2 - 1.5 A | Current for 40°C temperature rise | | **DC Resistance (DCR)** | ~130 - 150 mΩ | Typical resistance at 25°C | | **Tolerance** | ±20% | Standard manufacturing tolerance | | **Operating Temp** | -40°C to +125°C | Includes self-heating | --- ### 2. Physical Characteristics The "MA" series is characterized by its miniature footprint, making it ideal for space-constrained designs like smartphones and wearables. * **Package Size:** Typically 2.0 x 1.6 mm or 2.5 x 2.0 mm (depending on the specific sub-series footprint). * **Construction:** Metal composite/shielded construction to minimize Electromagnetic Interference (EMI). * **Termination:** RoHS compliant matte tin over nickel over silver-platinum-glass frit. --- ### 3. Key Features & Applications #### Features: * **High Frequency Performance:** Optimized for switching frequencies from 1 MHz to 5 MHz. * **Soft Saturation:** The metal core provides a "soft" saturation curve, meaning it doesn't lose inductance abruptly as current increases. * **Shielded Design:** Magnetic shielding reduces interference with nearby sensitive circuits. #### Typical Applications: 1. **Mobile Devices:** Power management for smartphones and tablets. 2. **Wearables:** Smartwatches and fitness trackers where PCB space is limited. 3. **DC-DC Converters:** Buck or Boost converters in portable electronics. 4. **IoT Modules:** Low-power wireless communication modules. --- ### 4. Part Number Breakdown (Example) While Coilcraft's specific internal codes vary, the suffix usually indicates: * **MA:** Series identifier (Miniature Metal Composite). * **2H:** Likely relates to the height or physical dimension code. * **AG:** Core material or specific electrical grading. * **R:** Usually indicates "RoHS Compliant" or "Tape and Reel" packaging.