The **FP1206R1-R30-R** is a high-current, shielded drum core power inductor manufactured by Eaton (formerly Cooper Bussmann/Coiltronics). This component belongs to the FP1206R series, which is specifically designed for high-frequency, high-current power applications like VRMs (Voltage Regulator Modules). --- ### 1. Part Number Breakdown Understanding the nomenclature helps identify the component's characteristics: | Code Segment | Meaning | Specification | | :--- | :--- | :--- | | **FP** | Series Family | Flat-Pac (High current, low profile) | | **1206** | Package Size | Approx. 12.0 x 6.0 mm footprint | | **R1** | Version | Design revision/Internal code | | **R30** | Inductance Value | 0.30 µH (300 nH) | | **-R** | RoHS Compliance | Lead-free / RoHS compliant | --- ### 2. Technical Specifications The FP1206R1-R30-R is optimized for efficiency in low-voltage, high-speed switching environments. | Parameter | Value | | :--- | :--- | | **Inductance** | 300 nH (±10%) | | **Rated Current ($I_{rms}$)** | ~55 Amperes | | **Saturation Current ($I_{sat}$)** | ~50 Amperes | | **DC Resistance (DCR)** | ~0.27 mΩ (typical) | | **Operating Temperature** | -40°C to +125°C | | **Mounting Type** | Surface Mount (SMD) | --- ### 3. Key Features * **High Current Density:** Capable of handling peaks over 50A, making it ideal for modern CPU and GPU power delivery. * **Low DCR:** The extremely low DC resistance (measured in milliohms) minimizes power loss due to heat (I²R losses). * **Ferrite Core Material:** Ensures low core losses at high frequencies (up to 2MHz+). * **Shielded Construction:** Reduces Electromagnetic Interference (EMI) with neighboring components. --- ### 4. Typical Applications This inductor is typically found in: 1. **Multi-phase VRMs:** Powering high-end processors (Intel/AMD). 2. **Point-of-Load (POL) Converters:** Step-down regulators for FPGAs and ASICs. 3. **Data Centers:** Server power supplies and networking equipment. 4. **Graphics Cards:** High-wattage GPU power stages.