The **ECST1V1308-1100-R** is a high-performance, shielded power inductor typically used in automotive and industrial electronic applications. It is designed for surface-mount technology (SMT) and is part of the ECST series characterized by its high current handling and low core losses. --- ### 1. Technical Specifications The following table summarizes the primary electrical and physical characteristics of this component: | Parameter | Specification | | :--- | :--- | | **Inductance** | 1.1 µH (Microhenries) | | **Tolerance** | ±20% | | **Rated Current (Idc)** | ~13A to 15A (Depending on temperature rise) | | **Saturation Current (Isat)** | ~25A to 30A (Drop in inductance) | | **DC Resistance (DCR)** | ~2.5 mΩ (Typical) | | **Package Size** | 13.5mm x 12.8mm (Approx.) | | **Operating Temp** | -40°C to +125°C or +150°C | | **Shielding** | Magnetically Shielded | --- ### 2. Key Features and Materials The "ECST" series utilizes advanced powder core technology to achieve specific performance goals: * **Composite Construction:** The inductor is usually made from a metal alloy powder core. This allows for a "soft saturation" characteristic, meaning the inductance drops gradually rather than sharply when the current increases. * **Magnetically Shielded:** The molded construction minimizes Electromagnetic Interference (EMI), which is critical for sensitive automotive sensors or communication circuits. * **High Thermal Stability:** Designed to operate in high-temperature environments without significant degradation in performance. * **RoHS Compliant:** The "-R" suffix at the end of the part number typically denotes compliance with lead-free/RoHS regulations. --- ### 3. Applications Due to its high current rating and low DCR, this part is commonly found in: 1. **Voltage Regulator Modules (VRMs):** Used in CPU/GPU power delivery. 2. **DC-DC Converters:** Buck or boost converters for automotive infotainment or ADAS systems. 3. **Battery Management Systems (BMS):** Filtering and power storage in electric vehicle components. 4. **LED Lighting Drivers:** Providing stable current for high-intensity automotive lighting. --- ### 4. Part Number Breakdown (Typical) While manufacturers vary, the nomenclature generally follows this logic: * **ECST:** Series identifier (Shielded Composite Inductor). * **1V:** Voltage or Material classification. * **1308:** Physical dimensions (13mm x 8mm height approx). * **1100:** Inductance code (1.1 µH). * **R:** RoHS compliant.