The **APL0806P-R80M** is a high-performance, surface-mount (SMD) power inductor commonly used in DC-DC converters, voltage regulator modules (VRMs), and high-current power supplies. --- ### 1. Technical Specifications Below are the primary technical parameters for this specific component: | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.80 µH (Microhenries) | | **Tolerance** | ±20% (indicated by 'M') | | **Case Size** | Approx. 8.0 x 6.0 mm (Series 0806) | | **DC Resistance (DCR)** | Extremely low (typically < 2 mΩ) | | **Saturation Current ($I_{sat}$)** | Very high (typically 20A - 40A depending on temp) | | **Core Material** | Composite Molded Iron Powder | --- ### 2. Part Number Breakdown Understanding the nomenclature helps in identifying the component's capabilities: * **APL**: Manufacturer series prefix (often associated with high-current molded inductors). * **0806**: Physical dimensions (8.0mm length x 6.0mm width). * **P**: Likely refers to a specific packaging or profile height (standard/low profile). * **R80**: Represents the inductance value. **R** acts as a decimal point, so $0.80$ µH. * **M**: Tolerance code ($M = \pm20\%$). --- ### 3. Key Features and Construction * **Molded Construction:** The inductor is manufactured by molding a metal alloy powder around a copper coil. This design minimizes "buzz" noise (acoustic noise) and provides a shielded structure. * **Soft Saturation:** Unlike ferrite inductors that drop inductance sharply when current limits are reached, the APL0806P-R80M typically exhibits a "soft saturation" curve. * **Thermal Stability:** Designed to operate in high-temperature environments (often up to 125°C or 150°C), making it suitable for automotive and industrial computing applications. --- ### 4. Typical Applications This part is usually found in high-efficiency power stages where space is limited but power demand is high: 1. **Motherboards & Graphics Cards:** Used in the VCore power phases for CPUs and GPUs. 2. **Point of Load (POL) Converters:** Converting 12V or 5V rails down to lower voltages (1.2V, 0.8V). 3. **Battery Powered Devices:** High-current buck converters in laptops and tablets.