### Electronic Overview: CTC0F-R82J The **CTC0F-R82J** is a high-precision, fixed inductor commonly used in radio frequency (RF) and signal filtering applications. It belongs to the family of **Conformal Coated Axial Lead Inductors**. --- ### 1. Technical Specifications The following table outlines the primary electrical characteristics of the component: | Parameter | Value | Details | | :--- | :--- | :--- | | **Inductance** | 0.82 µH | The "R82" in the part number denotes 0.82. | | **Tolerance** | ±5% | Indicated by the "J" suffix. | | **Q Factor (Min)** | 45 | Measured at 25.2 MHz. | | **Self-Resonant Freq (SRF)** | 250 MHz | Minimum frequency where it acts as an inductor. | | **DC Resistance (Max)** | 0.22 Ω | The resistance offered to DC current. | | **Rated Current (Idc)** | 850 mA | The maximum current it can handle without overheating. | --- ### 2. Physical Construction * **Type:** Axial Leaded. * **Core Material:** Typically Ferrite or Phenolic (depending on the specific series range). * **Coating:** Conformal coated with epoxy resin for environmental protection (moisture and chemical resistance). * **Color Coding:** Uses standard industry color bands to denote inductance and tolerance. --- ### 3. Part Number Breakdown Understanding the nomenclature helps in identifying variants: 1. **CTC0F:** The series designation (Conformal Coated Axial Inductor). 2. **R82:** The Inductance value ($R$ acts as a decimal point). $0.82 \mu H$. 3. **J:** The tolerance code. $J = \pm 5\%$, $K = \pm 10\%$, $M = \pm 20\%$. --- ### 4. Common Applications Due to its high Q-factor and stable inductance, it is frequently used in: * **RF Circuits:** Tuning and matching networks. * **Filters:** Low-pass, high-pass, and band-pass filters for signal integrity. * **Decoupling:** Blocking high-frequency noise in power supply lines. * **Telecommunications:** Signal processing equipment.