## Overview of the ASTC-03-R68 The **ASTC-03-R68** is a specialized electronic component, typically categorized as a high-frequency, surface-mount (SMD) **Chip Inductor** (specifically a Power Inductor). It is designed for use in power management circuits, DC-DC converters, and signal filtering applications where a compact footprint and high reliability are required. --- ### Technical Specifications The following table outlines the primary electronic characteristics of the ASTC-03-R68: | Parameter | Value/Specification | | :--- | :--- | | **Inductance** | 0.68 µH (indicated by "R68") | | **Tolerance** | ±20% (Typical for this series) | | **Mounting Type** | Surface Mount (SMD/SMT) | | **Current Rating (Isat)** | High Saturation Current (Specific to package size) | | **DC Resistance (DCR)** | Low (Designed for high efficiency) | | **Operating Temperature** | -40°C to +125°C (Standard industrial range) | --- ### Key Electronic Features 1. **Magnetic Shielding:** Most components in the ASTC series feature a shielded construction. This minimizes Electromagnetic Interference (EMI), preventing the inductor's magnetic field from affecting neighboring components on a crowded PCB. 2. **Low DCR (DC Resistance):** By using high-quality copper windings, the part minimizes power loss through heat, which is critical for extending battery life in portable electronics. 3. **High Saturation Current:** The "R68" (0.68 µH) value is often chosen for high-speed switching regulators. The core material is engineered to maintain inductance even as the current increases, preventing "roll-off" or circuit failure. --- ### Common Applications * **DC-DC Converters:** Used in Buck or Boost regulators to store energy. * **Mobile Devices:** Power management for smartphones, tablets, and wearables. * **Computing:** Localized power supply (VRM) for CPUs or GPUs. * **Noise Filtering:** Suppressing high-frequency noise in power lines. --- ### Part Number Breakdown Understanding the nomenclature helps in identifying variants: * **ASTC:** The product series (High-current shielded inductor). * **03:** Refers to the physical dimensions (Case size). * **R68:** The Inductance value. "R" acts as a decimal point, resulting in **0.68 microhenries (µH)**.