The **HCMA1707-150-R** is a high-current power inductor designed by Eaton (formerly Cooper Bussmann). It belongs to the HCMA series, which is specifically engineered for automotive and high-reliability industrial applications. --- ## 1. Technical Specifications The following table summarizes the key electrical and physical characteristics of this component: | Parameter | Specification | | :--- | :--- | | **Inductance** | 15.0 µH | | **Tolerance** | ±20% | | **Rated Current (Irms)** | 10.5 Amperes | | **Saturation Current (Isat)** | 12.0 Amperes | | **DC Resistance (DCR)** | 17.5 mΩ (Typical) / 20.1 mΩ (Max) | | **Operating Temperature** | -55°C to +125°C | | **Package / Case** | 1707 (approx. 17.5 x 17.2 x 7.0 mm) | | **AEC-Q200 Qualified** | Yes (Automotive Grade) | --- ## 2. Key Features The HCMA1707 series is built using advanced materials to ensure performance under stress: * **Molded Construction:** The inductor uses a powdered iron core technology that is molded around the winding. This provides excellent shielding against electromagnetic interference (EMI). * **High Current Handling:** Designed to handle high transient current spikes without saturation. * **AEC-Q200 Compliance:** Undergoes rigorous testing for mechanical shock, vibration, and thermal cycling, making it suitable for automotive engine compartments. * **Low Core Loss:** Optimized for high-frequency DC-DC converters to maintain efficiency. --- ## 3. Typical Applications The HCMA1707-150-R is commonly found in circuits requiring stable power delivery: * **Automotive Electronics:** Power steering (EPS), LED lighting, and Infotainment systems. * **Voltage Regulator Modules (VRMs):** Used in high-current DC-DC converters. * **Industrial Power Supplies:** High-density power modules for automation. * **Battery Powered Systems:** Filtering and storage in large battery management systems. --- ## 4. Part Number Breakdown ```text HCMA 1707 - 150 - R | | | | | | | +-- RoHS Compliant | | +------- Inductance Code (150 = 15.0 µH) | +-------------- Size Dimension (approx. 17mm x 7mm) +------------------- Series Name (Automotive High Current) ```