## PI10040Q1-R56M: Electronic Component Specifications The **PI10040Q1-R56M** is a high-current, shielded surface-mount (SMD) power inductor. It is commonly used in DC-DC converters, voltage regulator modules (VRM), and high-efficiency power supplies where space and thermal performance are critical. ### 1. General Specifications | Parameter | Value | Details | | :--- | :--- | :--- | | **Inductance** | 0.56 µH | The nominal inductance value. | | **Tolerance** | ±20% (M) | Labeled by the 'M' suffix. | | **Case Size** | 10040 | Approx. 10.0 x 10.0 x 4.0 mm. | | **Shielding** | Magnetic Shielded | Reduces EMI and interference. | | **Material** | Metal Alloy / Carbonyl Powder | Offers high saturation current. | --- ### 2. Electrical Performance This part is designed for high-frequency switching environments. Key performance metrics include: * **Saturation Current ($I_{sat}$):** Typically ranges between **25A to 35A** (depending on the specific manufacturer series). This is the current at which inductance drops by a specified percentage (usually 20-30%). * **Heating Current ($I_{rms}$):** The steady-state DC current that causes a 40°C temperature rise, usually around **20A to 28A**. * **DC Resistance (DCR):** Very low (typically < 2.0 mΩ) to minimize power loss and heat generation. --- ### 3. Part Number Breakdown The nomenclature provides specific details about the component's construction: | Segment | Meaning | | :--- | :--- | | **PI** | Series Identifier (Power Inductor) | | **10040** | Physical Dimensions ($10 \times 10 \times 4.0 \text{ mm}$) | | **Q1** | Qualification Level (Often refers to AEC-Q200 Automotive grade) | | **R56** | Inductance Value (R56 = 0.56 µH) | | **M** | Tolerance (±20%) | --- ### 4. Key Applications * **Automotive Electronics:** Infotainment systems and ADAS modules (due to Q1 rating). * **Computing:** High-current buck converters for CPUs and GPUs. * **Industrial:** High-density power supplies and distributed power systems. ---