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Based on the standard component nomenclature for capacitors, the code **162J48** represents a specific type of film or ceramic capacitor. Below is the breakdown of what these numbers and letters signify in the context of electronic engineering.
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### 1. Decoding the Part Number
Electronic components use standardized shorthand codes to denote their electrical properties. Here is the analysis of **162J48**:
| Segment | Value | Meaning |
| :--- | :--- | :--- |
| **162** | 1,600 pF | **Capacitance:** 16 followed by 2 zeros (1,600 picofarads or 1.6nF). |
| **J** | ±5% | **Tolerance:** The allowable variance from the rated capacitance. |
| **48** | 4,800V or Series | **Voltage/Series:** Often refers to the voltage rating (4.8kV) or a specific manufacturer series code. |
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### 2. Technical Specifications
| Parameter | Specification |
| :--- | :--- |
| **Component Type** | High-Voltage Film or Ceramic Capacitor |
| **Capacitance (C)** | 1.6 nF (Nanofarads) |
| **Tolerance** | J-Class (Tight tolerance for precision circuits) |
| **Typical Use Cases** | Pulse circuits, snubbers, and high-frequency filtering. |
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### 3. Application Examples
Parts with these specific ratings (High voltage, low capacitance) are typically found in the following electronic environments:
* **Switching Power Supplies (SMPS):** Used as "snubber" capacitors to protect transistors from voltage spikes.
* **CRT/Displays:** Historical use in high-voltage deflection circuits.
* **RF Equipment:** Used in impedance matching or as high-frequency bypass components.
* **Lighting Ballasts:** Found in high-intensity discharge (HID) or fluorescent starters.
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### 4. Identification Code Table (Reference)
If you are reading this code off a component, use this table to verify other similar parts:
| Code | Multiplier | Resulting Value |
| :--- | :--- | :--- |
| 102 | $10 \times 10^2$ | 1,000 pF (1nF) |
| **162** | **$16 \times 10^2$** | **1,600 pF (1.6nF)** |
| 103 | $10 \times 10^3$ | 10,000 pF (10nF) |
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How do I determine the voltage rating if '48' is not the voltage?
- ⤷ What are the physical dimensions typical for a 162J capacitor?
- ⤷ Can a 162J capacitor be replaced with a 202J in a circuit?