The **AISC-Q0603HQ-R11** is a high-performance electronic component belonging to the **Surface Mount (SMD) Wire-Wound Inductor** family. Specifically, it is designed for High-Q (high-quality factor) applications in Radio Frequency (RF) circuits. Below is a detailed breakdown of its specifications and characteristics. --- ### 1. General Specifications The part number follows a specific nomenclature that defines its physical and electrical properties: | Feature | Specification | | :--- | :--- | | **Series** | AISC-Q (Automotive Grade, High-Q) | | **Case Size** | 0603 (EIA) / 1608 (Metric) | | **Inductance** | 110 nH (indicated by "R11") | | **Tolerance** | Typically ±2% or ±5% (standard for this series) | | **Mounting Type** | Surface Mount (SMD) | --- ### 2. Key Electrical Characteristics These inductors are engineered for precision and stability in demanding environments. * **High Q-Factor:** The "HQ" designation stands for High-Q. This means the inductor has very low energy loss (low internal resistance) at high frequencies, making it ideal for filters and oscillators. * **Self-Resonant Frequency (SRF):** Because it is an RF component, it has a high SRF, ensuring it maintains inductive behavior into the Gigahertz (GHz) range. * **Wire-Wound Construction:** Unlike multilayer inductors, the wire-wound construction allows for higher current carrying capacity and lower Direct Current Resistance (DCR). * **Automotive Grade:** The "AISC" prefix often denotes compliance with **AEC-Q200** standards, meaning it is tested for high vibration, thermal shock, and reliability in automotive systems. --- ### 3. Physical Dimensions The **0603** footprint is one of the most common sizes in modern electronics, balancing performance with miniaturization. | Dimension | Measurement (approx.) | | :--- | :--- | | **Length (L)** | 1.60 mm | | **Width (W)** | 0.80 mm | | **Height (H)** | 0.80 mm to 1.00 mm | --- ### 4. Typical Applications The AISC-Q0603HQ-R11 is commonly found in the following circuits: 1. **RF Matching Networks:** Matching impedance between antennas and power amplifiers. 2. **Wireless Communication:** Used in Bluetooth, Wi-Fi, and LTE modules. 3. **Automotive Telematics:** GPS units, Infotainment systems, and ADAS sensors. 4. **Frequency Filters:** Band-pass or Low-pass filters where sharp signal cut-offs are required. ---