The **SD14-1R2-R** is a high-performance, low-profile power inductor manufactured by Eaton (formerly Bussmann). It is primarily used in DC-DC converters and power management circuits. --- ### 1. General Specifications The following table summarizes the key electrical and physical characteristics of the SD14-1R2-R: | Parameter | Specification | | :--- | :--- | | **Inductance** | 1.2 µH | | **Tolerance** | ±20% | | **Rated Current (Irms)** | 2.58 Amps | | **Saturation Current (Isat)** | 3.33 Amps | | **DC Resistance (DCR)** | 37.3 mΩ (Max) | | **Operating Temperature** | -40°C to +125°C | | **Package / Case** | Non-Standard (SMD) | | **Dimensions** | 5.2mm x 5.2mm x 1.45mm | --- ### 2. Key Features * **Low Profile:** With a height of only 1.45mm, it is ideal for space-constrained applications like smartphones, wearables, and thin laptops. * **Magnetic Shielding:** The component is shielded, which minimizes Electromagnetic Interference (EMI) with surrounding components. * **Ferrite Core:** Utilizes a ferrite core construction for high efficiency and low core losses at high frequencies. * **RoHS Compliant:** The "-R" suffix indicates that the part is lead-free and compliant with environmental regulations. --- ### 3. Applications The SD14-1R2-R is commonly integrated into: 1. **Buck/Boost Converters:** Used as energy storage elements in voltage regulation circuits. 2. **Portable Electronics:** Ideal for tablets, handheld gaming consoles, and digital cameras. 3. **LED Drivers:** Provides stable current filtering for lighting solutions. 4. **Computer Peripherals:** Found on motherboards and graphic cards for local power rail filtering. --- ### 4. Part Number Breakdown The naming convention follows Eaton’s standard logic: * **SD14:** Series identifier (Indicates the physical size/footprint). * **1R2:** Inductance value (1.2 Microhenries). * **-R:** RoHS compliance (Lead-free).