The **WJFT3-HA2-R** is a specific electronic component typically categorized as a **Surface Mount Device (SMD) Power Inductor** or a specialized **RF/Filtering magnetic component**. It is designed for high-efficiency power conversion and electromagnetic interference (EMI) suppression. --- ### 1. Key Technical Specifications While exact parameters can vary by manufacturer, parts in the WJFT series generally follow these technical characteristics: | Parameter | Typical Value / Range | | :--- | :--- | | **Component Type** | Shielded Power Inductor | | **Inductance** | 2.2µH to 10µH (Configuration dependent) | | **Tolerance** | ±20% (Standard) | | **Mounting Type** | Surface Mount (SMD/SMT) | | **Operating Temperature** | -40°C to +125°C | | **Shielding** | Magnetically Shielded (Low Leakage) | --- ### 2. Part Number Breakdown (Estimated) In electronic component nomenclature, the suffix and prefix codes usually denote physical and electrical properties: * **WJFT**: Series identifier (often associated with high-current, low-profile power inductors). * **3**: Frame size or physical footprint (e.g., 3mm x 3mm class). * **HA2**: Electrical characteristic code (Inductance value and saturation current rating). * **-R**: RoHS Compliant / Tape and Reel packaging. --- ### 3. Application Areas The WJFT3-HA2-R is engineered for modern high-density electronics where space is limited but power efficiency is critical. * **DC-DC Converters:** Used as an energy storage element in buck/boost converters. * **Mobile Devices:** Integrated into smartphones, tablets, and wearable tech due to its low profile. * **Computing:** Power rails for CPUs, GPUs, and FPGA units. * **EMI Suppression:** Filtering high-frequency noise in signal lines. --- ### 4. Component Features 1. **High Saturation Current:** Designed to maintain inductance even when high current peaks occur. 2. **Low DC Resistance (DCR):** Minimizes power loss as heat, increasing overall battery life in portable devices. 3. **Magnetic Shielding:** The internal construction prevents magnetic flux from interfering with neighboring components on the PCB. ---