The **SPB1007-R30M** is a high-current, shielded surface-mount (SMD) power inductor. It is commonly used in DC-DC converters and power management modules where high efficiency and low electromagnetic interference (EMI) are required. --- ## 1. Technical Specifications The following table outlines the primary electrical characteristics of the SPB1007-R30M: | Parameter | Value | Details | | :--- | :--- | :--- | | **Inductance** | 0.30 µH | Measured at 100kHz, 0.25V | | **Tolerance** | ±20% | Standard "M" tolerance | | **DC Resistance (DCR)** | ~1.1 mΩ | Typical (Max ~1.3 mΩ) | | **Saturation Current (Isat)** | ~35.0 A | Current where inductance drops 30% | | **Heating Current (Irms)** | ~25.0 A | Current causing a 40°C temp rise | | **Operating Temperature** | -40°C to +125°C | Includes self-heating | --- ## 2. Key Features and Construction ### A. Magnetic Shielding The "SPB" series features a **shielded construction**. The inductor core is enclosed in a magnetic resin or ferrite housing. * **Benefit:** Minimizes leakage flux and prevents interference with neighboring components on the PCB. ### B. High Current Handling Due to the low DCR (Direct Current Resistance), this part can handle significant current without excessive heat generation. The 0.30µH value is typical for high-frequency switching regulators. ### C. Surface Mount Design (SMD) The "1007" designation typically refers to the physical footprint (approximately 10mm x 7mm or similar, depending on the specific manufacturer's naming convention). --- ## 3. Part Number Breakdown Understanding the nomenclature helps in identifying equivalent parts: | Segment | Meaning | | :--- | :--- | | **SPB** | Series identifier (Shielded Power Inductor) | | **1007** | Case size/dimensions | | **R30** | Inductance value (R30 = 0.30 µH) | | **M** | Tolerance (M = ±20%) | --- ## 4. Typical Applications * **Voltage Regulator Modules (VRM):** Used in CPU/GPU power delivery. * **DC-DC Converters:** Buck, Boost, and Buck-Boost topologies. * **Battery Powered Devices:** High-efficiency power supplies for portable electronics. * **Industrial Electronics:** Robust power filtering in noisy environments.