The **MF1304T-R15** is a high-current, surface-mount power inductor typically used in DC-DC converter applications. It belongs to a category of molded power inductors designed for high efficiency and compact footprints. --- ### 1. Key Technical Specifications Below are the typical electrical and physical characteristics for this component: | Parameter | Value / Specification | |:---|:---| | **Inductance** | 0.15 µH (denoted by "R15") | | **Tolerance** | ±20% (Typical) | | **DC Resistance (DCR)** | Extremely low (Typically < 1.0 mΩ) | | **Saturation Current (Isat)** | Very high (Often 30A - 50A range) | | **Operating Temperature** | -40°C to +125°C | | **Package Size** | 13.5mm x 13.0mm (Approximate) | | **Construction** | Shielded, Magnetic Metal Powder Core | --- ### 2. Core Components and Materials The "MF" series generally refers to **Molded Ferrite/Metal** construction. The part consists of the following elements: * **Magnetic Powder Core:** The coil is embedded in a metallic magnetic powder mixture. This design allows for "soft saturation," meaning the inductance doesn't drop off abruptly when current increases. * **Flat Wire/Round Wire Coil:** High-current inductors of this size often use flat copper wire to maximize the cross-sectional area, which minimizes DC resistance (DCR) and reduces heat. * **Shielding:** The molded body acts as a natural magnetic shield, reducing Electromagnetic Interference (EMI) with surrounding components. --- ### 3. Common Applications Due to its low inductance and high current handling, the MF1304T-R15 is commonly found in: 1. **Voltage Regulator Modules (VRMs):** Used in CPU and GPU power supplies on motherboards. 2. **Point of Load (POL) Converters:** High-efficiency power distribution in servers and networking gear. 3. **Battery Powered Systems:** Where high efficiency and low heat generation are critical. 4. **Automotive Electronics:** Powering infotainment or ADAS systems (if AEC-Q200 qualified). --- ### 4. Part Number Breakdown While naming conventions vary slightly by manufacturer (such as Mag.Layers or similar vendors), the code usually breaks down as follows: * **MF:** Series code (Molded Form). * **1304:** Dimensions (approx. 13mm width, 4mm height). * **T:** Packaging (often stands for Tape & Reel). * **R15:** Inductance value ($0.15 \mu H$). ---