The **HCM1707-220-R** is a high-current, automotive-grade power inductor manufactured by Eaton (formerly Cooper Bussmann). It is designed for high-frequency DC-DC converters and voltage regulator modules. --- ### 1. Key Technical Specifications The following table summarizes the primary electrical and physical characteristics of this component: | Parameter | Specification | | :--- | :--- | | **Inductance** | 22 µH | | **Tolerance** | ±20% | | **DC Resistance (DCR)** | 31.0 mΩ (Typical) / 35.7 mΩ (Max) | | **Saturation Current ($I_{sat}$)** | 11.5 A | | **RMS Current ($I_{rms}$)** | 9.0 A | | **Operating Temperature** | -55°C to +125°C | | **Package Size** | 17.5mm x 17.2mm x 7.0mm | --- ### 2. Core Features * **High Current Handling:** Designed to manage high peak currents without saturation, making it ideal for power-hungry processors. * **Low Core Loss:** The iron powder core material is optimized for efficiency in high-frequency switching applications (up to 2 MHz). * **Magnetic Shielding:** The molded construction minimizes Electromagnetic Interference (EMI), which is critical in densely packed circuit boards. * **AEC-Q200 Grade 1:** This indicates the part is qualified for automotive use, ensuring high reliability under mechanical vibration and thermal stress. --- ### 3. Application Use Cases The HCM1707 series is typically used in the following electronic environments: 1. **Automotive Systems:** Infotainment units, ADAS (Advanced Driver Assistance Systems), and LED lighting drivers. 2. **Industrial Power:** High-efficiency DC-DC converters and Point-of-Load (POL) modules. 3. **Computing:** Voltage Regulator Modules (VRMs) for servers and multi-phase regulators. --- ### 4. Part Number Breakdown `HCM1707-220-R` * **HCM:** Product Series (High Current Inductor, Power Beads). * **1707:** Physical size (approx. 17mm footprint, 7mm height). * **220:** Inductance value code ($22 \times 10^0 = 22 \mu H$). * **R:** RoHS compliant suffix.