The **SRP2313CC-R68M** is a high-current, shielded power inductor manufactured by **Bourns**. It is designed specifically for high-density power applications where reliability and low magnetic radiation are critical. ### 1. Part Number Breakdown Understanding the nomenclature helps identify the component's key specifications: | Segment | Value | Description | | :--- | :--- | :--- | | **SRP** | Series | High Current Shielded Power Inductor | | **2313** | Size Code | Dimensions (approx. 23.5 x 22.0 x 12.6 mm) | | **CC** | Material | Carbonyl Powder Core (High Saturation) | | **R68** | Inductance | 0.68 µH (Microhenries) | | **M** | Tolerance | ±20% | --- ### 2. Key Technical Specifications The SRP2313CC-R68M is characterized by its ability to handle extremely high currents with minimal loss. * **Inductance:** 0.68 µH * **DC Resistance (DCR):** Extremely low (typically ~0.65 mΩ), minimizing heat generation. * **Heating Current (Irms):** The current that causes a 40°C temperature rise (typically >50A). * **Saturation Current (Isat):** The current at which inductance drops by 30% (typically >80A). * **Operating Temperature:** -55 °C to +150 °C. * **Construction:** Metal alloy powder core with a molded shield. --- ### 3. Electronic Features & Advantages #### Shielded Construction The inductor uses a "molded" construction where the coil is embedded in a magnetic metal powder. This provides **magnetic shielding**, which drastically reduces Electromagnetic Interference (EMI) compared to non-shielded drum cores. #### High Saturation Characteristics Because it uses a carbonyl iron powder core, the saturation curve is "soft." Unlike ferrite cores that lose inductance abruptly when current limits are reached, this part maintains functional inductance even during high-current transients. #### Low DCR (DC Resistance) The use of flat-wire or heavy-gauge copper winding ensures that the resistance is kept to a sub-milliohm level, which is essential for high-efficiency DC-DC converters (VRMs). --- ### 4. Common Applications This component is typically found in high-power industrial and consumer electronics: * **GPU/CPU Power Supplies:** Voltage Regulator Modules (VRMs) for high-end computing. * **DC/DC Converters:** High-current buck converters in servers. * **Automotive Systems:** Driver assistance systems and infotainment power rails. * **Industrial Power:** High-current motor drives and LED lighting drivers.