The **1008HT-R24T_L** is a high-temperature, high-performance **Wirewound Chip Inductor** typically manufactured by companies like Coilcraft. It is part of the 1008HT series, designed specifically for high-frequency applications where thermal stability is critical. --- ### 1. Key Technical Specifications | Parameter | Value / Description | | :--- | :--- | | **Inductance** | 240 nH (Nanohenries) | | **Tolerance** | ±10% (Indicated by 'K') or ±5% (Indicated by 'J') | | **Case Size** | 1008 (2.5 x 2.0 mm) | | **Core Material** | Ceramic | | **Max Operating Temp** | +155°C (High-Temperature Rated) | | **Termination** | RoHS Compliant (Lead-free) | --- ### 2. Breakdown of the Part Number Understanding the nomenclature helps in identifying the specific variant: * **1008**: The physical footprint size (0.10 x 0.08 inches). * **HT**: High Temperature. These parts use a specialized potting compound and high-temp wire insulation to survive up to 155°C. * **R24**: The inductance value. "R" acts as the decimal point for microhenries ($0.24 \mu H$), which equals $240 \text{ nH}$. * **T**: Tolerance code (Commonly $\pm 5\%$). * **L**: Termination style (usually indicating Silver-Palladium-Platinum-Glass Fritt or Matte Tin over Nickel). --- ### 3. Electrical Characteristics Because this inductor uses a **ceramic core**, it offers excellent $Q$ (Quality Factor) and high Self-Resonant Frequency (SRF), but it does not provide the high inductance values found in ferrite cores. * **Low DCR (DC Resistance):** Minimizes power loss and heat generation within the circuit. * **High Q Factor:** Ensures low signal loss in RF (Radio Frequency) applications. * **High SRF:** Allows the component to behave as an inductor at very high frequencies before parasitic capacitance takes over. --- ### 4. Typical Applications The 1008HT-R24T_L is primarily used in demanding environments such as: 1. **Automotive:** Engine control units (ECUs) and sensors where under-the-hood temperatures are high. 2. **Aerospace:** Communication equipment subjected to extreme thermal cycling. 3. **RF Circuits:** Impedance matching, resonance circuits, and high-frequency filtering. 4. **Industrial:** High-power transmitters and heavy machinery monitoring. ---