The **MA0630-R15M1** is a high-current, low-profile power inductor typically used in DC-DC converter applications. It belongs to the family of molded power inductors known for their high efficiency and compact footprint. --- ### 1. Key Specifications The technical parameters of the MA0630-R15M1 are detailed in the table below: | Parameter | Specification | |:---|:---| | **Inductance** | 0.15 µH | | **Tolerance** | ±20% (M) | | **Case Size** | 0630 (approx. 6.6 x 7.0 x 3.0 mm) | | **DC Resistance (DCR)** | ~0.9 mΩ (Typical) | | **Saturation Current (Isat)** | ~40.0 A - 50.0 A | | **Heat Rating Current (Irms)** | ~25.0 A - 30.0 A | | **Operating Temperature** | -40°C to +125°C | --- ### 2. Part Number Breakdown Understanding the nomenclature helps in identifying its physical and electrical characteristics: * **MA**: Series designation (often indicating a metal alloy core material). * **0630**: Dimensions (6mm x 6mm base, 3.0mm height). * **R15**: Inductance value (R15 = 0.15 microhenries). * **M**: Tolerance (M = ±20%). * **1**: Internal revision or packaging code. --- ### 3. Core Features & Technology The MA0630-R15M1 utilizes specific construction techniques to handle high power in a small space: * **Metal Alloy Powder Core:** Unlike traditional ferrite cores, these use a molded metal powder. This allows for "soft saturation," meaning the inductance drops gradually rather than abruptly when current exceeds limits. * **Magnetically Shielded:** The molded construction naturally shields the component, reducing Electromagnetic Interference (EMI) with neighboring components on the PCB. * **Low DCR:** The use of flat or thick copper wire minimizes DC resistance, reducing power loss through heat (I²R losses). --- ### 4. Typical Applications Due to its low inductance and extremely high current handling, it is commonly found in: * **Voltage Regulator Modules (VRMs):** Powering CPUs and GPUs. * **High-speed DC-DC Converters:** Point-of-Load (POL) converters. * **Automotive Electronics:** Infotainment and ADAS power rails. * **Battery Powered Devices:** Where high efficiency is critical for battery life. ---