## Technical Overview of SRP7030-R20M The **SRP7030-R20M** is a high-current, shielded power inductor manufactured by **Bourns**. It is part of the SRP7030 series, which is designed for high-density power supply applications where efficiency and thermal stability are critical. ### 1. Key Technical Specifications | Parameter | Value | Details | | :--- | :--- | :--- | | **Inductance** | 0.20 µH | Rated at 100 kHz / 1 V | | **Tolerance** | ±20% | Standard "M" tolerance rating | | **Irms (Heating Current)** | 32.0 A | Current that causes a 40°C temperature rise | | **Isat (Saturation Current)** | 40.0 A | Current where inductance drops by 20% | | **DCR (DC Resistance)** | 1.1 mΩ (Max) | Very low resistance for high efficiency | | **Operating Temp** | -45°C to +150°C | Suitable for automotive and industrial use | --- ### 2. Component Composition and Design * **Core Material:** It utilizes a **metal alloy powder core**. Unlike traditional ferrite cores, metal powder cores offer "soft saturation" characteristics, meaning the inductance decreases gradually rather than dropping off sharply when current increases. * **Construction:** The coil is molded directly into the metal powder body. This design provides excellent magnetic shielding to minimize Electromagnetic Interference (EMI) and makes the part highly resistant to mechanical vibration. * **Terminations:** Features large, flat lead frames that provide a robust solder joint for Surface Mount Technology (SMT) processes. --- ### 3. Common Applications Because of its high current handling and low profile (approx. 3mm height), this inductor is typically used in: * **DC/DC Converters:** Voltage regulation modules (VRMs) for CPUs and GPUs. * **Power Supplies:** Specifically in high-frequency switched-mode power supplies (SMPS). * **Automotive Electronics:** Driver assistance systems, information/entertainment units, and lighting. * **Consumer Electronics:** High-end laptops, tablets, and SSD power rails. --- ### 4. Footprint and Dimensions (Approximate) ```text Length: 7.3 mm (±0.3) Width: 6.6 mm (±0.3) Height: 3.0 mm (Max) ``` ---