**Understanding the 474 Capacitor Code**

### What is a 474 Capacitor Code?

A 474 capacitor code is a three-digit code used to identify the characteristics of a capacitor. It is commonly used in the electronics industry to specify the capacitance value, tolerance, and voltage rating of a capacitor.

### Breaking Down the 474 Capacitor Code

The 474 capacitor code consists of three digits: the first two digits represent the capacitance value, and the third digit represents the tolerance.

**Capacitance Value (First Two Digits)**

The first two digits of the 474 capacitor code represent the capacitance value in picofarads (pF). The capacitance value is calculated by multiplying the two digits together and adding a multiplier based on the third digit.

For example, if the first two digits are 47, the capacitance value would be:

47 x 10^(-2) = 470 pF

**Tolerance (Third Digit)**

The third digit of the 474 capacitor code represents the tolerance of the capacitor. The tolerance indicates the percentage of variation in the capacitance value from the nominal value.

Here is a common tolerance chart for capacitors:

- 0: ±0.25%
- 1: ±1%
- 2: ±2%
- 3: ±3%
- 4: ±4%
- 5: ±5%
- 6: ±10%
- 7: ±20%
- 8: ±30%
- 9: ±50%

For example, if the third digit is 5, the tolerance would be ±5%.

### Example of a 474 Capacitor Code

Let's take the example of a capacitor with the code 474. Breaking down the code, we get:

- First two digits: 47, which represents a capacitance value of 470 pF
- Third digit: 4, which represents a tolerance of ±4%

Therefore, the capacitor has a capacitance value of 470 pF with a tolerance of ±4%.

### Conclusion

The 474 capacitor code is a simple and effective way to identify the characteristics of a capacitor. By understanding the code, you can easily determine the capacitance value, tolerance, and voltage rating of a capacitor, making it easier to select the right component for your electronic project.