The **AMPLA5030Q-R20NT** is a high-performance, molded power inductor typically used in automotive and industrial electronics. It is part of the "AMPLA" series, which focuses on high current density and stability in harsh environments. --- ### 1. Key Technical Specifications Based on the part number nomenclature, here are the primary electrical and physical characteristics: | Parameter | Specification (Typical) | | :--- | :--- | | **Inductance** | 0.20 µH (indicated by "R20") | | **Package Size** | 5.0mm x 5.0mm x 3.0mm (indicated by "5030") | | **Material Type** | Metal Alloy Powder (Molded) | | **Tolerance** | ±20% (indicated by "N") | | **Operating Temp** | -55°C to +125°C or +150°C (Automotive Grade) | | **Termination** | Tin (Sn) or specialized plating (indicated by "T") | --- ### 2. Physical Construction The "Q" in the part number often signifies **AEC-Q200** qualification, meaning it is designed to withstand extreme thermal shocks and mechanical vibrations. * **Core Material:** It uses a metallic alloy powder core. Unlike traditional ferrite cores, these do not saturate suddenly; they provide a "soft" saturation curve. * **Molded Structure:** The wire coil is embedded directly into the metal powder and pressed under high pressure. This minimizes acoustic noise (buzzing) and provides excellent electromagnetic interference (EMI) shielding. --- ### 3. Electrical Behavior * **Low DCR (DC Resistance):** Because it is a high-current inductor, the internal copper wire is thick, minimizing power loss and heat generation. * **High Saturation Current ($I_{sat}$):** The R20 (0.20 µH) value is very low, which allows the inductor to handle extremely high peak currents (often exceeding 20A-30A depending on the specific series) without losing its inductive properties. * **High Efficiency:** Designed for high-frequency switching (MHz range), making it ideal for modern Point-of-Load (PoL) converters. --- ### 4. Common Applications Due to its low profile and high current capacity, it is frequently found in: 1. **Automotive ECU:** Power supplies for Advanced Driver Assistance Systems (ADAS). 2. **Infotainment:** High-efficiency DC-DC converters for screens and processors. 3. **Industrial Computing:** VRM (Voltage Regulator Modules) for high-speed CPUs and GPUs. 4. **Telecom:** Compact power modules requiring high power density. --- ### 5. Part Number Breakdown ```text AMPLA 5030 Q - R20 N T | | | | | | Series Size Grade Val Tol Packaging ```