The **MA72TAG-R** is a specific part number typically associated with **Minitron** (or related manufacturers) for a **Surface Mount Device (SMD) Power Inductor**. These components are essential in power management circuits for energy storage and noise filtering. --- ### 1. Component Overview The MA72TAG-R belongs to the category of high-current power inductors. These are designed to handle significant direct current (DC) without saturating the magnetic core, making them ideal for DC-DC converters. | Feature | Description | | :--- | :--- | | **Component Type** | Shielded Power Inductor | | **Mounting Type** | SMD/SMT (Surface Mount Technology) | | **Core Material** | Ferrite or Carbonyl Powder (Metal Alloy) | | **Shielding** | Magnetically shielded (low EMI) | | **Standard Size** | Approx. 7.0mm x 7.0mm (indicated by "7" in series) | --- ### 2. Technical Specifications While exact values depend on the specific inductance value (represented by the "TAG" code in some naming conventions), the general characteristics of the MA72 series include: * **Inductance Range:** Usually ranges from 0.1µH to 47µH. * **Operating Temperature:** Typically -40°C to +125°C. * **DC Resistance (DCR):** Low resistance to minimize power loss and heat generation. * **Saturation Current:** High peak current capability before the inductance drops. --- ### 3. Key Applications This component is widely used in electronic devices that require efficient voltage regulation: 1. **DC-DC Converters:** Used in buck, boost, and SEPIC topologies. 2. **Laptops/Tablets:** Powering CPUs and GPUs where space is limited. 3. **LED Drivers:** Providing steady current to high-brightness LEDs. 4. **Network Hardware:** Used in routers and switches for power stability. --- ### 4. Part Number Breakdown (Typical) In electronic components, prefixes and suffixes often denote specific physical traits: * **MA:** Series prefix (Minitron/Manufacturer specific). * **72:** Physical dimensions (roughly 7.5 x 7.0 x 2.4 mm). * **TAG:** Internal coding for electrical tolerance and material. * **-R:** Generally indicates **RoHS Compliance** (Lead-free) or **Tape & Reel** packaging for automated assembly. --- ### 5. Identification Schematic When looking at the PCB layout for this part, the footprint usually looks like this: ```text [ Pad 1 ] +-----------+ | | | Marking | <-- (e.g., 2R2 for 2.2uH) | | +-----------+ [ Pad 2 ] ```