## Technical Overview of SD7030-5R0-R The **SD7030-5R0-R** is a high-performance, shielded surface-mount (SMD) power inductor. It is part of the SD series manufactured by **Eaton (formerly Cooper Bussmann)**. These inductors are designed for applications requiring high power density and low electromagnetic interference (EMI). --- ### 1. Key Technical Specifications | Parameter | Value | | :--- | :--- | | **Inductance** | 5.0 µH | | **Tolerance** | ±20% | | **Current Rating (Irms)** | 3.31 Amps | | **Saturation Current (Isat)** | 2.84 Amps | | **DC Resistance (DCR)** | 24.3 mΩ (Max) | | **Operating Temperature** | -40°C to +125°C | | **Package Size** | 7.0mm x 7.0mm x 3.0mm | | **Shielding** | Ferrite Drum Core (Shielded) | --- ### 2. Physical Construction and Features * **Magnetic Shielding:** The "SD" series utilizes a ferrite drum core with a magnetic epoxy resin shield. This significantly reduces leakage flux, protecting sensitive nearby components from EMI. * **Low Profile:** With a height of only 3.0mm, it is ideal for thin electronic devices like laptops or handheld instruments. * **Robust Materials:** Constructed with high-temperature-rated wire and core materials to withstand lead-free reflow soldering processes. --- ### 3. Common Applications The SD7030-5R0-R is primarily used in power management circuits where efficiency and space are critical: 1. **DC-DC Converters:** Used in Buck, Boost, and SEPIC topologies. 2. **Computing:** Voltage Regulator Modules (VRMs) for CPUs and GPUs in portable computers. 3. **Consumer Electronics:** Power supplies for digital cameras, LED drivers, and handheld gaming consoles. 4. **Industrial:** Battery-powered equipment and distributed power systems. --- ### 4. Part Number Breakdown The nomenclature for this part follows a specific pattern: ```text SD 7030 - 5R0 - R | | | | | | | └── RoHS Compliant | | └────── Inductance Value (5R0 = 5.0 µH) | └───────────── Dimensions (7.0 x 7.0 x 3.0 mm) └───────────────── Series Name (Shielded Drum Inductor) ```