The **SRP4012CC-R15Y** is a high-performance, shielded power inductor manufactured by Bourns. It is designed primarily for high-density power supply applications where efficiency and thermal stability are critical. --- ### 1. Component Specifications The following table outlines the primary electrical and physical characteristics of the SRP4012CC-R15Y: | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.15 µH | | **Tolerance** | ±30% | | **Rated Current (Irms)** | 12.0 Amperes | | **Saturation Current (Isat)** | 14.5 Amperes | | **DC Resistance (DCR)** | 4.8 mΩ (Max) | | **Operating Temperature** | -55°C to +125°C | | **Package Size** | 4.0 x 4.0 x 1.0 mm (approx) | | **Shielding** | Shielded (Metal Alloy Powder) | --- ### 2. Key Features and Construction The "SRP" series from Bourns is known for specific engineering advantages: * **Carbonyl Powder Core:** Uses a metal alloy powder core that provides high saturation current and low core losses at high frequencies. * **Magnetic Shielding:** The molded construction minimizes electromagnetic interference (EMI), making it suitable for noise-sensitive circuits. * **Low Profile:** The "12" in the part number signifies a height of approximately 1.2mm, ideal for ultra-thin electronics like tablets or low-profile DC-DC converters. * **AEC-Q200 Compliance:** Most parts in this series are qualified for automotive use, ensuring high reliability under thermal shock and vibration. --- ### 3. Application Examples Because of its high current handling and small footprint, it is commonly used in: * **DC/DC Converters:** Point-of-Load (POL) power supplies for CPUs and GPUs. * **Consumer Electronics:** Smartphones, tablets, and SSDs. * **Industrial/Automotive:** Driver assistance systems and infotainment power rails. --- ### 4. Part Number Breakdown The nomenclature can be decoded as follows: | Code | Meaning | | :--- | :--- | | **SRP** | Series Name (Shielded Power Inductor) | | **4012** | Dimensions (4.0mm x 4.0mm x 1.2mm) | | **CC** | Material/Designator (Carbonyl Core) | | **R15** | Inductance Value (R15 = 0.15 µH) | | **Y** | Tolerance (Y = ±30%) |