The **SD14-2R0-R** is a high-performance, low-profile power inductor manufactured by Eaton (formerly Bussmann). It is part of the SD series, designed specifically for applications where space is limited and high efficiency is required. --- ### 1. Technical Specifications The following table summarizes the key electrical and physical characteristics of the SD14-2R0-R: | Parameter | Value | | :--- | :--- | | **Inductance** | 2.0 µH | | **Tolerance** | ±20% | | **DC Resistance (DCR)** | 35.8 mΩ (Typical) | | **Rated Current (Irms)** | 2.51 Amps | | **Saturation Current (Isat)** | 3.32 Amps | | **Package / Case** | 5.2mm x 5.2mm x 1.45mm | | **Operating Temperature** | -40°C to +125°C | | **Shielding** | Shielded (Magnetic) | --- ### 2. Key Components and Design Features * **Magnetic Shielding:** The part is magnetically shielded, which minimizes Electromagnetic Interference (EMI). This is crucial for dense PCB layouts where components are placed close to sensitive integrated circuits. * **Ferrite Core:** It utilizes a ferrite drum core which provides high saturation current levels relative to its small physical size. * **Low Profile (1.45mm):** The "14" in the part number indicates the height (approx. 1.4mm), making it ideal for ultra-thin electronics like smartphones or tablets. * **Construction:** It features a robust surface mount (SMD) design with high-quality copper windings to minimize power loss. --- ### 3. Part Number Breakdown Understanding the nomenclature helps in identifying variants: | Segment | Meaning | | :--- | :--- | | **SD** | Series name (Standard Inductor) | | **14** | Dimensional size (approx. 1.4mm height) | | **2R0** | Inductance value (2.0 microhenries) | | **-R** | RoHS compliant / Lead-free | --- ### 4. Typical Applications The SD14-2R0-R is commonly used in the following circuits: 1. **DC-DC Converters:** Used as energy storage elements in buck, boost, or buck-boost regulators. 2. **Portable Electronics:** Ideal for mobile phones, digital cameras, and handheld GPS units. 3. **Computer Peripherals:** Used in SSD power rails and laptop motherboards. 4. **LED Drivers:** Providing stable current for backlighting applications. ---