### Technical Overview of SRP0610-R68K The **SRP0610-R68K** is a high-current, shielded power inductor manufactured by **Bourns**. It belongs to the SRP series, which is specifically designed for applications requiring high power density and electromagnetic interference (EMI) shielding. --- ### 1. Key Technical Specifications | Parameter | Value | Description | | :--- | :--- | :--- | | **Inductance** | 0.68 µH | Nominal inductance at 100 kHz | | **Tolerance** | ±10% | Indicated by the 'K' suffix | | **Irms (Heating Current)** | ~12.0 A | Current that causes a 40°C temp rise | | **Isat (Saturation Current)**| ~14.0 A | Current where inductance drops by 20-30% | | **DCR (DC Resistance)** | 6.8 mΩ (Max) | Internal resistance of the coil | | **Operating Temp** | -45°C to +125°C | Range including self-heating | --- ### 2. Breakdown of the Part Number Understanding the nomenclature helps in identifying its physical and electrical characteristics: * **SRP**: Series name (High Current Shielded Power Inductors). * **0610**: Dimensions. Approximately **6.6 mm x 7.3 mm** (Footprint) and **1.0 mm** (Height). * **R68**: Inductance value. "R" acts as a decimal point, signifying **0.68 µH**. * **K**: Tolerance code. **K** stands for ±10%. --- ### 3. Physical Construction & Features * **Shielded Construction:** The inductor is molded with a magnetic metal powder core. This provides excellent magnetic shielding to minimize EMI and reduces buzz noise. * **Low Profile:** With a height of only 1.0 mm, it is ideal for ultra-thin electronics like tablets and flat-panel displays. * **High Saturation Current:** The metal powder core allows the component to handle high peak currents without the inductance "crashing" (dropping off suddenly). --- ### 4. Common Applications Due to its high efficiency and small footprint, the SRP0610-R68K is typically used in: 1. **DC/DC Converters:** Used in voltage regulator modules (VRMs) for CPUs and GPUs. 2. **Portable Electronics:** Smartphones, tablets, and laptops where space is at a premium. 3. **Power Supplies:** Distributed power systems and battery-powered devices. ---