## Technical Overview of FP1308R3-R44-R The **FP1308R3-R44-R** is a high-current, low-profile power inductor typically used in DC-DC converters, voltage regulator modules (VRMs), and high-density power applications. It is manufactured by **Eaton (formerly Cooper Bussmann/Coiltronics)** as part of their FP1308R series. --- ### 1. Key Technical Specifications The following table outlines the primary electrical and physical characteristics of the component: | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.44 µH (±10%) | | **Current Rating (Irms)** | 48 Amps | | **Saturation Current (Isat)** | 56 Amps | | **DC Resistance (DCR)** | 0.41 mΩ (typical) | | **Operating Temperature** | -40°C to +125°C | | **Package / Case** | SMD (Surface Mount Device) | | **Dimensions** | 13.4mm x 8.0mm x 8.0mm | --- ### 2. Core Features and Benefits * **High Frequency Performance:** Designed for high-frequency applications, usually reaching up to 2 MHz. * **Low DCR (Direct Current Resistance):** The exceptionally low DCR (0.41 mΩ) minimizes power loss due to heat, significantly increasing the efficiency of the power supply. * **Ferrite Core Material:** Uses a ferrite core which provides low core losses, making it ideal for high-speed switching. * **Halogen Free & RoHS Compliant:** Meets modern environmental safety standards for lead-free soldering and manufacturing. --- ### 3. Application Areas The FP1308R3-R44-R is specifically engineered for high-current demands in modern computing and networking: 1. **Multi-phase Regulators:** Used in CPU/GPU power delivery (VRMs) on motherboards. 2. **Point-of-Load (POL) Converters:** Providing stable power to FPGAs and ASICs. 3. **Data Centers:** High-density servers and storage systems. 4. **Networking:** Base stations and high-speed routers. --- ### 4. Part Number Breakdown Understanding the nomenclature helps in identifying variants: * **FP1308:** The series designation (High Frequency, Flat-Pac). * **R3:** Revision or specific construction style. * **R44:** The inductance value (R44 = 0.44 µH). * **-R:** Indicates RoHS compliance. ---