The **MA0530-R68M1** is a high-performance **Surface Mount (SMD) Power Inductor**, commonly used in DC-DC converters and high-frequency power supply modules. It belongs to a category of molded power inductors known for their high current density and low acoustic noise. --- ## Technical Specifications The following table outlines the primary electrical and physical characteristics of the MA0530-R68M1: | Parameter | Specification | Notes | | :--- | :--- | :--- | | **Inductance** | 0.68 µH | Rated at 100 kHz, 1.0 V | | **Tolerance** | ±20% (M) | Standard industry tolerance | | **DC Resistance (DCR)** | ~5.3 mΩ (Typ) / 6.0 mΩ (Max) | Very low resistance to minimize power loss | | **Saturation Current (Isat)** | ~18.0 A | Current at which inductance drops by 30% | | **Heat Rating Current (Irms)** | ~12.5 A | Current that causes a 40°C temperature rise | | **Operating Temperature** | -40°C to +125°C | Includes self-heating | | **Package Size** | 5.4 x 5.2 x 3.0 mm | Standard "0530" footprint | --- ## Key Features ### 1. Composite Molded Construction The part is manufactured using a metal alloy powder core. This design provides "soft saturation" characteristics, meaning the inductance decreases gradually as current increases, rather than dropping sharply. ### 2. Shielded Design The magnetic shielding prevents electromagnetic interference (EMI) with surrounding components on the PCB, making it ideal for high-density board layouts. ### 3. Low DCR and High Efficiency Because of its flat-wire or optimized winding technology, it offers extremely low DC resistance, which reduces heat generation and improves overall energy efficiency in portable devices. --- ## Typical Applications The MA0530-R68M1 is typically found in the following electronic circuits: * **Voltage Regulator Modules (VRM):** Used in laptops and desktop motherboards. * **DC-DC Converters:** Point-of-Load (POL) power supplies. * **Battery Powered Devices:** Smartphones, tablets, and handheld electronics where space and efficiency are critical. * **Telecommunications:** Base station power modules. --- ## Part Number Breakdown The part number can generally be decoded as follows: * **MA**: Series identifier (Molded Alloy). * **0530**: Physical size (approx. 5.0mm x 5.0mm footprint, 3.0mm height). * **R68**: Inductance value (R68 = 0.68 µH). * **M**: Tolerance (±20%). * **1**: Revision or internal factory code.