Based on the part number **MAH75FBG-R**, this component is a high-performance, shielded power inductor typically manufactured by **Delta Electronics** (or sometimes related to Cyntec, a Delta subsidiary). These inductors are widely used in automotive, industrial, and high-frequency power conversion applications. --- ### 1. Part Number Breakdown While specific manufacturer codes can vary, the nomenclature typically follows this structure: | Segment | Meaning | Details | | :--- | :--- | :--- | | **MAH** | Series Name | High-current, molded power inductor series. | | **75** | Case Size | Often refers to dimensions (e.g., approx. 7.5mm x 7.0mm). | | **FB** | Material/Characteristics | High-saturation core material, low DCR. | | **G** | Tolerance/Process | Often indicates Green/RoHS compliant or specific tolerance. | | **-R** | Packaging | Tape & Reel for automated SMT assembly. | --- ### 2. Technical Specifications (General Values) The MAH series is known for its "Molded" construction, which provides superior mechanical and magnetic shielding. * **Inductance Range:** Usually falls between 0.22µH to 10µH (specific to the sub-dash number). * **Operating Temperature:** Typically rated for **-55°C to +125°C** (or +155°C for automotive grades). * **Saturation Current ($I_{sat}$):** High current handling due to the metal powder core, preventing abrupt drops in inductance. * **DCR (DC Resistance):** Extremely low, minimizing power loss and heat generation. --- ### 3. Key Features * **Shielded Construction:** The molded metal powder body acts as a natural magnetic shield, reducing Electromagnetic Interference (EMI). * **AEC-Q200 Qualified:** Most parts in this series are tested for automotive reliability (vibration, thermal shock). * **Soft Saturation:** Unlike ferrite cores, these do not saturate instantly, providing a safety margin for current spikes. * **Compact Footprint:** High energy density relative to its physical size. --- ### 4. Common Applications These components are integral to **DC-DC Converters** and **Voltage Regulator Modules (VRMs)** found in: 1. **Automotive Systems:** ADAS cameras, infotainment units, and ECU power supplies. 2. **Computing:** High-end servers and laptops where space is limited but current demand is high. 3. **Industrial:** Battery management systems and high-efficiency motor controllers. --- ### 5. Schematic Symbol & Footprint ```c // Representation in PCB Design Symbol: L (Inductor) Footprint: SMD (Surface Mount Device) - 2 pads Material: Metal Alloy Powder ```