The **SD7030-150-R** is a high-performance, shielded surface-mount (SMD) power inductor manufactured by **Eaton (formerly Cooper Bussmann)**. It is part of the SD7030 series, widely used in DC-DC converters and power management circuits. --- ### 1. Key Technical Specifications The part number "150" indicates the inductance value, while the "R" signifies RoHS compliance. | Parameter | Specification | | :--- | :--- | | **Inductance** | 15 µH | | **Tolerance** | ±20% | | **Rated Current ($I_{rms}$)** | 1.83 Amperes | | **Saturation Current ($I_{sat}$)** | 1.90 Amperes | | **DC Resistance (DCR)** | 0.078 Ohms (Typ) | | **Operating Temperature** | -40°C to +125°C | | **Shielding** | Magnetic Shielded (Low EMI) | --- ### 2. Physical Dimensions The SD7030 series follows a specific footprint designed for compact electronic assemblies. * **Length:** 7.0 mm * **Width:** 7.0 mm * **Height:** 3.0 mm (Max) --- ### 3. Core Features & Benefits * **Magnetic Shielding:** The component is enclosed in a ferrite core, which minimizes electromagnetic interference (EMI). This is critical for noise-sensitive environments like medical or communication devices. * **High Power Density:** Despite its small 7x7mm footprint, it handles relatively high currents with low energy loss. * **Ferrite Core Material:** Ensures high efficiency and stable inductance across a wide frequency range. * **RoHS Compliant:** Lead-free and environmentally friendly construction. --- ### 4. Common Applications This inductor is typically found in the following power stages: 1. **Buck/Boost Converters:** Used as the energy storage element in voltage regulation. 2. **LED Drivers:** Providing steady current for high-brightness LEDs. 3. **Computers & Peripherals:** Used on motherboards and graphics cards for local power rails. 4. **Battery Powered Equipment:** Handheld devices where space and efficiency are priorities. --- ### 5. Part Number Breakdown ```text SD 7030 - 150 - R | | | |_ RoHS Compliant | | |______ Inductance Code: 15 + 0 zeros = 15µH | |_____________ Size Dimensions (7.0 x 7.0 x 3.0 mm) |_________________ Product Series (Shielded Drum Core) ```