The **SRP0612-R68K** is a high-current, shielded power inductor manufactured by Bourns. It is part of the SRP0612 series, designed for modern power supply applications requiring high efficiency and compact footprints. --- ### ## 1. Part Number Breakdown Understanding the nomenclature helps identify the component's physical and electrical characteristics: | Code Segment | Meaning | Description | | :--- | :--- | :--- | | **SRP** | Series Name | High current, shielded power inductor series | | **0612** | Dimensions | Approx. 6.6 mm x 7.3 mm footprint; 1.2 mm height | | **R68** | Inductance Value | 0.68 $\mu$H | | **K** | Tolerance | $\pm$10% | --- ### ## 2. Technical Specifications The SRP0612-R68K is engineered for low DC resistance (DCR) and high saturation currents. | Parameter | Value | | :--- | :--- | | **Inductance** | 0.68 $\mu$H | | **Tolerance** | $\pm$10% | | **Irms (Heating Current)** | 9.0 A (Current causing 40°C temp rise) | | **Isat (Saturation Current)** | 15.0 A (Current causing 20% drop in L) | | **DCR (Max)** | 13.0 m$\Omega$ | | **Operating Temperature** | -40°C to +125°C | | **Construction** | Metal alloy powder core (Shielded) | --- ### ## 3. Key Electronic Features * **Shielded Construction:** The inductor uses a metal powder core technology that provides magnetic shielding, significantly reducing EMI (Electromagnetic Interference) and preventing interference with nearby components. * **Low Profile:** With a maximum height of **1.2 mm**, it is ideal for ultra-thin electronics like tablets and laptops. * **High Saturation:** Unlike ferrite inductors that drop inductance sharply, the iron powder core has a "soft" saturation characteristic, meaning it handles current spikes more gracefully. * **Halogen-Free:** Complies with modern environmental safety standards (RoHS). --- ### ## 4. Common Applications Due to its high current handling and small size, this part is typically found in: 1. **DC/DC Converters:** Used as the energy storage element in buck or boost regulators. 2. **Laptops/Tablets:** Powering CPUs and GPUs where vertical space is limited. 3. **Distributed Power Systems:** POL (Point of Load) converters. 4. **LED Drivers:** Providing stable current for high-intensity lighting. ---