The **AM20-R22K-RC** is a high-reliability, axial-leaded molded inductor manufactured by **Bourns**. It belongs to the **AM20** series, which is designed for applications requiring high stability and precision in a compact, leaded package. --- ### ## Technical Specifications The following table summarizes the key electrical and physical parameters for this specific part number: | Parameter | Value / Specification | | :--- | :--- | | **Inductance** | 0.22 µH (Microhenries) | | **Tolerance** | ±10% (Indicated by 'K') | | **Inductance Code** | R22 (R = Decimal point) | | **Current Rating (Idc)** | 1350 mA (1.35 A) | | **DC Resistance (DCR)** | 0.12 Ω (Maximum) | | **Self-Resonant Frequency (SRF)** | 400 MHz (Minimum) | | **Q Factor (Min)** | 45 (at 25.2 MHz) | | **Operating Temperature** | -55°C to +105°C | | **Termination/Plating** | Tin (RoHS Compliant - 'RC') | --- ### ## Part Number Breakdown Understanding the nomenclature helps in identifying variants within the same series: 1. **AM20**: The series name (Axial Molded, small form factor). 2. **R22**: The inductance value ($0.22\mu H$). 3. **K**: The tolerance rating ($\pm 10\%$). 4. **RC**: Indicates RoHS Compliance. --- ### ## Key Features and Construction * **Molded Construction:** The internal coil is encapsulated in a rugged epoxy resin. This protects the component from environmental factors like moisture, mechanical shock, and vibration. * **Axial Leaded:** It features two wire leads extending from opposite ends, making it suitable for **Through-Hole Technology (THT)** mounting on PCBs. * **High Q Factor:** Offers low energy loss at high frequencies, which is essential for RF and signal processing circuits. --- ### ## Common Applications Due to its high resonant frequency and stable inductance, the AM20-R22K-RC is typically used in: * **RF Tuning:** Used in radio frequency circuits for filtering and impedance matching. * **Signal Decoupling:** Preventing high-frequency noise from entering sensitive power rails. * **Oscillators:** Serving as a frequency-determining element in LC circuits. * **Communication Equipment:** Modems, routers, and handheld transceivers.