The **TPI13067F-R68M** is a high-current, flat-wire power inductor typically used in automotive and industrial power electronics. It belongs to a category of "Power Inductors" designed for high-frequency DC-DC converters. --- ### 1. Technical Specifications The part number follows a specific nomenclature. Here are the core electronic characteristics: | Parameter | Value / Specification | | :--- | :--- | | **Inductance** | 0.68 µH (indicated by "R68") | | **Tolerance** | ±20% (indicated by "M") | | **DCR (Direct Current Resistance)** | Very Low (typically < 1.0 mΩ) | | **Saturation Current ($I_{sat}$)** | Very High (typically 40A - 60A range) | | **Operating Temperature** | -40°C to +125°C or +150°C | | **Construction** | Shielded, Flat-wire winding | --- ### 2. Key Internal Components The performance of this part is driven by two main physical aspects: * **Magnetic Core Material:** Usually composed of a high-permeability metal alloy powder. This material allows for soft saturation, meaning the inductance doesn't drop off instantly when high current is applied. * **Flat-Wire Winding:** Unlike traditional round wire, flat copper wire increases the cross-sectional area while keeping the component height low. This significantly reduces **DCR**, minimizing heat loss ($P = I^2 R$). * **Molded Shielding:** The coil is encapsulated in the magnetic powder, providing excellent EMI (Electromagnetic Interference) shielding and structural integrity. --- ### 3. Typical Applications Because of its high current handling and low profile, the TPI13067F-R68M is found in: 1. **Voltage Regulator Modules (VRMs):** Powering CPUs and GPUs in industrial servers. 2. **Automotive Electronics:** Infotainment systems and ADAS (Advanced Driver Assistance Systems). 3. **DC-DC Converters:** Point-of-Load (POL) converters where high efficiency is required. --- ### 4. Circuit Representation In a schematic, this component is represented as a standard inductor, but with specific emphasis on its polarity (if marked) and current rating. ```spice * Example SPICE sub-circuit representation L1 Node1 Node2 0.68u R_series Node2 Node3 0.0005 ; Representing the low DCR ```