The identifier **162J20** typically refers to a specific type of **Film Capacitor**, often used in power supplies, audio circuits, and general electronics. In electronics nomenclature, these alphanumeric codes describe the component's electrical characteristics. --- ### 1. Decoding the Part Number (162J20) The code is broken down into three primary specifications: **Capacitance**, **Tolerance**, and **Voltage Rating**. | Segment | Meaning | Value / Description | | :--- | :--- | :--- | | **162** | Capacitance Code | **1600 pF** (1.6nF). The "2" is the multiplier ($10^2$). | | **J** | Tolerance | **±5%**. This is the standard tolerance for film capacitors. | | **20** | Voltage Rating | **2000 Volts (2kV)**. (Note: In some series, this represents 200V). | ### 2. Physical Characteristics These parts are usually **Polyester Film** or **Polypropylene Film** capacitors. * **Encapsulation:** Often "dipped" in epoxy resin (typically maroon, brown, or green). * **Lead Type:** Radial leads (two wires coming out of the bottom). * **Non-Polarized:** They can be inserted into a circuit in either direction. ### 3. Technical Specifications | Parameter | Standard Value | | :--- | :--- | | **Capacitance** | 1.6 nF / 0.0016 µF | | **Dielectric Material** | Polyester or Polypropylene | | **Operating Temp** | -40°C to +85°C (standard) | | **Dissipation Factor** | Low (typically < 1.0% at 1kHz) | | **Insulation Resistance** | Very high (> 30,000 MΩ) | --- ### 4. Common Applications Due to their ability to handle high voltages and provide stable capacitance, the 162J20 is commonly found in: 1. **CRT Monitors/TVs:** Used in the horizontal deflection circuits. 2. **Lighting Ballasts:** Found in high-intensity discharge or fluorescent lighting circuits. 3. **Snubber Circuits:** Used to suppress voltage spikes in switching power supplies. 4. **Coupling/Decoupling:** Filtering high-frequency noise in audio or radio equipment. --- ### 5. Identification Comparison If you are looking for a replacement, ensure the voltage and capacitance match exactly. ```markdown # Replacement Check: - 162J = 1.6nF (Must match) - J = 5% (Can be replaced by 'G' 2% or 'F' 1%, but not 'K' 10%) - 20 = 2000V (Replacement must be equal to or higher than original voltage) ``` ---