## SD14-330-R Component Overview The **SD14-330-R** is a surface-mount (SMD) shielded power inductor manufactured by Eaton (formerly Bussmann). It is part of the SD series, known for its low profile and high power density. --- ### Technical Specifications The following table summarizes the key electrical and physical characteristics of the SD14-330-R: | Parameter | Value | | :--- | :--- | | **Inductance** | 33.0 µH | | **Tolerance** | ±20% | | **Rated Current (Irms)** | 0.82 Amps (Typical) | | **Saturation Current (Isat)** | 0.61 Amps (Typical) | | **DC Resistance (DCR)** | 0.281 Ohms (Typical) | | **Core Material** | Ferrite | | **Operating Temperature** | -40°C to +125°C | | **Package / Case** | 5.2mm x 5.2mm x 1.45mm | --- ### Key Features * **Magnetic Shielding:** The component is shielded, which minimizes Electromagnetic Interference (EMI) and prevents the inductor from affecting nearby sensitive components. * **Low Profile:** With a height of only 1.45mm, it is ideal for thin electronic devices like smartphones, tablets, and wearables. * **Ferrite Core:** Provides high efficiency and low core losses at high frequencies. * **RoHS Compliant:** The "-R" suffix indicates that the part is lead-free and meets RoHS environmental standards. --- ### Typical Applications The SD14-330-R is commonly integrated into the following circuits: 1. **DC-DC Converters:** Used as energy storage elements in buck (step-down) or boost (step-up) converters. 2. **LED Drivers:** Provides stable current regulation for backlighting or lighting applications. 3. **Battery Powered Devices:** High efficiency makes it suitable for extending battery life in handheld electronics. 4. **Computer Peripherals:** Used in disk drives and network cards where space and EMI control are critical. --- ### Part Number Breakdown The part number follows a specific nomenclature: * **SD:** Series name (Shielded Drum Inductor). * **14:** Size code (refers to the physical dimensions, approx. 1.4mm height). * **330:** Inductance value in microhenries (The first two digits are significant; the third is the multiplier. $33 \times 10^0 = 33$ µH). * **R:** RoHS compliant.