The **AISC-0805-R91** is a specific surface-mount electronic component, primarily known as a **Wire-Wound Ceramic Chip Inductor**. It is widely used in high-frequency applications due to its high Q-factor and stable performance. ### 1. Component Identification Breakdown The part number follows a standard industry naming convention: | Part Segment | Meaning | Description | | :--- | :--- | :--- | | **AISC** | Series | Abracon Inductor Series (Ceramic) | | **0805** | Case Size | Dimensions: 0.08 x 0.05 inches (2.0 x 1.25 mm) | | **R91** | Inductance | **0.91 µH** (910 nH) | --- ### 2. Technical Specifications Below are the typical electrical characteristics for this specific value (0.91 µH): | Parameter | Value (Typical) | | :--- | :--- | | **Inductance** | 0.91 µH (910 nH) | | **Tolerance** | Usually ±5% (J) or ±10% (K) | | **Quality Factor (Q)** | High (Minimum 25-35 at test frequency) | | **Self-Resonant Frequency (SRF)** | ~400 MHz to 600 MHz | | **Max DC Resistance (DCR)** | ~1.5 to 2.2 Ω | | **Max Rated Current** | ~150 mA to 200 mA | | **Operating Temperature** | -40°C to +125°C | --- ### 3. Key Features & Construction * **Wire-Wound Technology:** Unlike multilayer inductors, these use a copper wire wound around a ceramic core. This results in much lower DC resistance and higher current handling. * **Ceramic Core:** The non-magnetic core provides excellent thermal stability and very high SRF, making it suitable for RF (Radio Frequency) circuits. * **Small Footprint:** The 0805 package is standard for automated PCB assembly (SMT). --- ### 4. Common Applications Due to its high frequency and high Q characteristics, the AISC-0805-R91 is typically found in: 1. **RF Matching Circuits:** Used to match impedance between different stages of an RF amplifier or antenna. 2. **Filters:** Low-pass, high-pass, and band-pass filters in wireless communication devices. 3. **Bluetooth & Wi-Fi Modules:** For signal tuning and noise suppression. 4. **Oscillators:** To provide stable frequency generation. ---