## Technical Overview of ASPI-2410-R68 The **ASPI-2410-R68** is a surface-mount (SMD) power inductor manufactured by **Abracon**. It belongs to the ASPI-2410 series, which is characterized by a small footprint and high current handling capabilities, commonly used in DC-DC conversion circuits. ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.68 µH | | **Tolerance** | ±30% (denoted by 'N') | | **DC Resistance (DCR)** | 35 mΩ (Max) | | **Saturation Current (Isat)** | 2.90 A | | **Temperature Rise Current (Irms)** | 2.20 A | | **Operating Temperature** | -40°C to +125°C | | **Package Size** | 2.4 x 2.4 x 1.0 mm | --- ### 2. Physical Construction * **Form Factor:** The "2410" in the part number refers to its dimensions (2.4mm length/width and 1.0mm height). * **Shielding:** It is a **shielded** inductor. This is critical for high-density PCB layouts as it minimizes electromagnetic interference (EMI) with neighboring components. * **Core Material:** Typically utilizes a ferrite drum core with a magnetic epoxy resin shield. ### 3. Part Number Breakdown The part number `ASPI-2410-R68-N-T` can be decoded as follows: * **ASPI:** Series prefix (Surface Mount Power Inductor). * **2410:** Dimensions (2.4 x 2.4 x 1.0 mm). * **R68:** Inductance value (R68 = 0.68 µH). * **N:** Tolerance (±30%). * **T:** Packaging (Tape & Reel). --- ### 4. Common Applications Due to its low profile (1.0mm) and high efficiency, this component is found in: 1. **Mobile Devices:** Smartphones and tablets where board space is limited. 2. **DC/DC Converters:** Used in switching regulators to smooth out current. 3. **Portable Electronics:** Digital cameras, GPS units, and wearable tech. 4. **Computer Peripherals:** SSDs and compact power modules. ### 5. Design Considerations * **Saturation Current:** When designing, ensure the peak circuit current does not exceed the `Isat` (2.90A), or the inductance will drop significantly, potentially damaging the regulator. * **Self-Resonant Frequency (SRF):** Ensure the switching frequency of your converter is well below the SRF of the inductor to maintain inductive behavior.