The **SD14-8R8-R** is a high-performance, low-profile power inductor part of the SD series manufactured by **Eaton (formerly Cooper Bussmann)**. It is designed specifically for high-density surface mount (SMD) applications. --- ### 1. Technical Specifications The part number "8R8" refers to its inductance value, and the "R" indicates it is RoHS compliant. | Parameter | Specification | | :--- | :--- | | **Inductance** | 8.8 µH | | **Rated Current (Irms)** | 1.34 Amps | | **Saturation Current (Isat)** | 1.15 Amps | | **DC Resistance (DCR)** | 0.126 Ohms (Typical) | | **Tolerance** | ±20% | | **Operating Temperature** | -40°C to +125°C | | **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 ultra-thin electronics like smartphones, tablets, and wearables. * **Magnetic Shielding:** The ferrite drum core is shielded, which minimizes Electromagnetic Interference (EMI) with surrounding components. * **High Power Density:** Despite its small footprint, it handles relatively high currents with low energy loss. * **Construction:** It features a rugged design with a ferrite core and copper wire, finished with gold-plated or tin-plated terminals for reliable soldering. --- ### 3. Common Applications This inductor is typically used in power management circuits where space is a constraint: 1. **DC-DC Converters:** Buck, Boost, and SEPIC topologies. 2. **LED Drivers:** Providing stable current for backlighting. 3. **Portable Electronics:** Digital cameras, GPS units, and handheld gaming consoles. 4. **Computing:** Localized power regulation on motherboards or peripherals. --- ### 4. Part Number Breakdown ```text SD 14 - 8R8 - R | | | | | | | +-- RoHS Compliant | | +-------- Inductance Value (8.8 microhenries) | +------------- Size Code (approx. 5x5mm footprint, 1.4mm height) +---------------- Series Name (SD Family) ``` ---