### Technical Overview of SRP0512-R68K The **SRP0512-R68K** is a high-performance, shielded power inductor manufactured by **Bourns**. It is designed primarily for high-current power supplies and DC/DC converters where efficiency and low electromagnetic interference (EMI) are critical. --- ### 1. Key Technical Specifications | Parameter | Value | | :--- | :--- | | **Inductance** | 0.68 µH | | **Tolerance** | ±10% (Indicated by 'K') | | **Current Rating (Irms)** | 6.5 Amps | | **Saturation Current (Isat)** | 10 Amps | | **DC Resistance (DCR)** | 15 mΩ (Max) | | **Operating Temperature** | -45°C to +125°C | | **Package / Case** | 0512 (approx. 5.7 x 5.2 x 1.0 mm) | --- ### 2. Component Composition & Features * **Shielded Construction:** The inductor uses a metal alloy powder core. This design minimizes magnetic field leakage (low EMI) and protects nearby sensitive components on the PCB. * **Low Profile:** The "12" in the part number indicates a maximum height of approximately **1.2 mm**, making it ideal for ultra-thin electronics like tablets or laptops. * **High Saturation Current:** Unlike traditional ferrite inductors, the metal powder core provides a "soft" saturation characteristic, meaning the inductance drops gradually rather than abruptly as current increases. --- ### 3. Part Number Breakdown To understand the specific variant, here is the decoding of the nomenclature: | Segment | Meaning | | :--- | :--- | | **SRP** | Series Name (High Current Power Inductor) | | **0512** | Dimensions (5.0mm footprint, 1.2mm height) | | **R68** | Inductance Value (R68 = 0.68 µH) | | **K** | Tolerance Code (K = ±10%) | --- ### 4. Common Applications Due to its compact size and high current handling, it is commonly used in: * **DC/DC Converters:** Point-of-Load (POL) power supplies. * **Consumer Electronics:** Smartphones, HDD/SSD drives, and laptops. * **Automotive:** Infotainment systems and LED lighting modules. --- ### 5. Footprint (Mechanical Data) ```text Top View Side View _________________ _________________ | | | | | [R68] | | 1.2mm | |_________________| |_________________| 5.7mm typ. ```