The **PIT04012SP-R15N** is a high-performance, surface-mount (SMD) power inductor typically used in high-frequency DC-DC converters and power supply modules. It belongs to the family of molded power inductors, characterized by their low profile and high current handling capabilities. ### 1. Key Technical Specifications Below are the primary electrical and physical characteristics of the component: | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.15 µH | | **Tolerance** | ±30% (indicated by 'N') | | **DC Resistance (DCR)** | ~0.80 mΩ (Typical) / 0.96 mΩ (Max) | | **Saturation Current (Isat)** | ~55.0 A | | **Heat Rating Current (Irms)** | ~30.0 A | | **Operating Temperature** | -55°C to +125°C | | **Package Size** | 4.0 x 4.0 x 1.2 mm | --- ### 2. Part Number Breakdown Understanding the nomenclature helps in identifying the component's physical and electrical limits: * **PIT**: Series identifier (typically indicating a Metal Alloy Molded Inductor). * **04012**: Physical dimensions. 04 denotes ~4.0mm length/width, and 012 denotes ~1.2mm height. * **SP**: Specific material or performance characteristic (often referring to standard/high performance). * **R15**: Inductance value. "R" acts as a decimal point, so R15 = **0.15 µH**. * **N**: Tolerance code. 'N' usually represents **±30%**. --- ### 3. Core Features and Benefits * **Shielded Construction:** The molded metal powder construction provides magnetic shielding, which significantly reduces EMI (Electromagnetic Interference). * **Low DCR:** The extremely low DC resistance minimizes power loss due to heat, increasing the overall efficiency of the power circuit. * **Soft Saturation:** Unlike ferrite cores that drop inductance sharply at high currents, the metal alloy core provides a "soft" saturation curve, making the circuit more stable under heavy loads. * **Compact Footprint:** The 4x4x1.2mm size is ideal for space-constrained applications like smartphones, tablets, and thin laptops. --- ### 4. Typical Applications This inductor is designed for high-current power rails where efficiency and space are critical: 1. **Voltage Regulator Modules (VRM):** Used in CPU and GPU power delivery. 2. **DC/DC Converters:** Point-of-load (POL) converters for telecommunications. 3. **Portable Electronics:** Power management in high-end mobile devices. 4. **Automotive Infotainment:** Compact power filtering in dashboards.