The term **15322-R** is typically associated with a specific electronic component: a **Power Inductor** (Surface Mount Device) manufactured by companies like **Eaton (formerly Bussmann)** or generic equivalents. --- ## 1. Technical Specifications The 15322-R is part of a high-frequency, high-current power inductor series. Below are the typical technical parameters for this component: | Parameter | Specification (Typical) | | :--- | :--- | | **Inductance** | 22 µH (Microhenries) | | **Tolerance** | ±20% | | **Mounting Type** | Surface Mount (SMD/SMT) | | **Current Rating (Isat)** | ~1.5A to 3.0A (Varies by series size) | | **Operating Temp** | -40°C to +125°C | | **Shielding** | Often Shielded (to reduce EMI) | --- ## 2. Key Features * **Low Profile:** Designed for compact electronic assemblies where vertical space is limited. * **High Efficiency:** Features low DC Resistance (DCR), which minimizes power loss and heat generation. * **Ferrite Core:** Utilizes a ferrite core material to provide high permeability and stable inductance over a range of frequencies. * **RoHS Compliant:** The "-R" suffix almost always indicates that the part is **RoHS Compliant** (Lead-free). --- ## 3. Common Applications These inductors are fundamental building blocks in modern power electronics. They are primarily used for: 1. **DC-DC Converters:** Acting as energy storage elements in "Buck" (step-down) or "Boost" (step-up) regulators. 2. **Voltage Regulator Modules (VRM):** Found on motherboards and server cards to stabilize power delivery to CPUs. 3. **Noise Filtering:** Used in EMI/RFI filtering circuits to smooth out electrical noise in power lines. 4. **Consumer Electronics:** Commonly found in laptops, LED drivers, and portable medical devices. --- ## 4. Identification and Suffixes When sourcing this part, pay attention to the full manufacturer part number. For example: * **DR74-15322-R**: A specific series by Eaton/Bussmann where "DR74" defines the physical dimensions (approx. 7.6mm x 7.6mm). * **Inductance Code**: Often the "22" in "15322" represents the 22µH value, while "153" may refer to the specific series or package style.