The **LSW-1008-R75K-B** is a specific part number for a **Surface Mount (SMD) Wire-Wound Inductor**. These components are essential in radio frequency (RF) and power management circuits for filtering and energy storage. --- ### 1. Part Number Deciphering While naming conventions can vary slightly by manufacturer (commonly associated with brands like **Lichtzen** or similar RF component specialists), the code typically breaks down as follows: | Segment | Meaning | Description | | :--- | :--- | :--- | | **LSW** | Series Type | Likely "L" (Inductor) "SW" (Surface Wire-wound). | | **1008** | Case Size | 1.0 x 0.8 inches (approx. 2.5 x 2.0 mm). | | **R75** | Inductance Value | **0.75 µH** (Microhenries). The 'R' acts as a decimal point. | | **K** | Tolerance | **±10%**. | | **B** | Packaging/Special | Often denotes Bulk or a specific termination material. | --- ### 2. Technical Specifications Based on the standard parameters for the 1008 wire-wound series, here are the typical electrical characteristics: * **Inductance:** 0.75 µH (750 nH). * **Tolerance:** ±10% (denoted by 'K'). * **Structure:** Ceramic or Ferrite core with a copper wire winding. Wire-wound inductors generally offer much higher **Q-factors** (Quality factor) than multilayer inductors. * **Operating Temperature:** Typically -40°C to +125°C. --- ### 3. Key Applications Because this is a wire-wound component in a 1008 package, it is designed for: 1. **RF Matching:** Used in wireless communication devices to match impedance between stages. 2. **Filtering:** Acting as a Low Pass or Band Pass filter to remove high-frequency noise. 3. **Signal Conditioning:** Used in GPS, Bluetooth, and Wi-Fi modules where high signal integrity is required. 4. **Decoupling:** Preventing high-frequency interference from affecting power rails. --- ### 4. Comparison: Wire-Wound vs. Multilayer | Feature | Wire-Wound (LSW Series) | Multilayer Inductors | | :--- | :--- | :--- | | **Q-Factor** | High (Better for RF) | Lower | | **Current Handling** | Higher | Lower | | **DC Resistance (DCR)** | Lower | Higher | | **Cost** | Slightly higher | Lower |