The **SD14-100-R** is a high-performance, low-profile power inductor manufactured by Eaton (formerly Cooper Bussmann/Coiltronics). It is part of the SD series, which is specifically designed for surface-mount (SMD) applications where space is limited but power efficiency is critical. --- ### 1. Key Technical Specifications The following table outlines the primary electrical and physical characteristics of the SD14-100-R: | Parameter | Value | | :--- | :--- | | **Inductance** | 10.0 µH | | **Tolerance** | ±20% | | **Rated Current (Irms)** | 1.34 Amperes | | **Saturation Current (Isat)** | 1.20 Amperes | | **DC Resistance (DCR)** | 0.125 Ohms (Max) | | **Package / Case** | SMD (5.2mm x 5.2mm x 1.45mm) | | **Shielding** | Shielded (Magnetic) | | **Operating Temperature** | -40°C to +125°C | --- ### 2. Physical Construction and Design The SD14-100-R is engineered with several specific features to optimize its performance in electronic circuits: * **Magnetic Shielding:** The part is magnetically shielded, which minimizes Electromagnetic Interference (EMI). This is vital for densely packed PCB designs where noise can affect sensitive nearby components. * **Low Profile:** The "14" in the part number signifies its height (approximately 1.45mm), making it ideal for ultra-thin electronics like tablets, smartphones, and wearable sensors. * **Ferrite Core:** It utilizes a ferrite drum core which provides high saturation current capabilities for its size. --- ### 3. Common Applications This inductor is typically used in power management stages, specifically: 1. **DC-DC Converters:** Buck, Boost, and SEPIC topologies. 2. **Portable Electronics:** Powering CPUs or displays in mobile devices. 3. **LED Drivers:** Providing stable current for backlighting or signaling. 4. **Computer Peripherals:** Used in SSDs, network cards, and compact loT devices. --- ### 4. Part Number Breakdown Understanding the nomenclature helps in identifying variations: ```text SD 14 - 100 - R | | | | | | | +-- RoHS Compliant | | +------- Inductance Value (10 x 10^0 = 10µH) | +------------ Size/Height Code (1.45mm) +--------------- Series Name (Shielded Drum Inductor) ```