## Detailed Analysis of SRP4012CC-R10Y The **SRP4012CC-R10Y** is a high-performance, shielded power inductor manufactured by **Bourns**. It is designed specifically for applications requiring high current density and low electromagnetic interference (EMI). --- ### 1. Key Technical Specifications Below are the primary electronic characteristics of this component: | Parameter | Value | | :--- | :--- | | **Inductance** | 0.10 µH | | **Tolerance** | ±20% | | **Rated Current (Irms)** | 11.5 A | | **Saturation Current (Isat)** | 25.0 A | | **DC Resistance (DCR)** | 4.3 mΩ (Typ) / 4.8 mΩ (Max) | | **Self-Resonant Frequency (SRF)** | 165 MHz | | **Operating Temperature** | -55 °C to +125 °C | --- ### 2. Component Construction & Features This part belongs to the **SRP4012CC series**, which utilizes specific materials and construction techniques to achieve its performance: * **Shielded Construction:** The inductor is magnetically shielded, which minimizes EMI and prevents the magnetic field from interfering with neighboring components on the PCB. * **Carbonyl Powder Core:** It uses a metal alloy powder core. This provides high saturation current characteristics, meaning the inductance stays stable even as the current increases. * **Low DCR:** The very low DC resistance (4.3 mΩ) reduces power loss through heat, making it highly efficient for battery-powered devices. * **Compact Footprint:** The "4012" designation refers to its physical size: * **Length:** 4.1 mm * **Width:** 4.1 mm * **Height:** 1.2 mm (Ultra-low profile) --- ### 3. Part Number Breakdown Understanding the nomenclature helps in identifying variants: | Segment | Meaning | | :--- | :--- | | **SRP** | Series Name (Shielded Power Inductor) | | **4012** | Dimensions (approx. 4.0 x 4.0 x 1.2 mm) | | **CC** | Material/Designator (Carbonyl Powder) | | **R10** | Inductance Value (R10 = 0.10 µH) | | **Y** | Tolerance (Y = ±20%) | --- ### 4. Typical Applications Due to its high current handling and small size, it is commonly used in: * **DC/DC Converters:** Point-of-Load (POL) power supplies. * **Consumer Electronics:** Smartphones, tablets, and wearable devices. * **Laptops:** CPU/GPU core power regulation. * **Embedded Systems:** High-efficiency power modules. ---