Capacitors Temperature Codes and Characteristics
Very often you will see a three digit code next to the capacitance value and voltage for a capacitor. That three digit code can help you understand the temperature characteristics for that capacitor.
Some of the most common codes are:
X7R (minimum temp is -55°C; maximum temp is +125°C; value change over temperature is ±15%)
Y5V (minimum temp is -30°C; maximum temp is +85°C; value change over temperature is -82%, +22%)
Z5U (minimum temp is +10°C; maximum temp is +85°C; value change over temperature is -56%, +22%)
Use the chart below to find the temperature characteristics for your capacitor.
| Temperature Characteristic Code | |||||
|---|---|---|---|---|---|
| Minimum Temperature | Maximum Temperature | Value Change over Temperature | |||
| X | -55oC | 2 | +45oC | A | ± 1% |
| Y | -30oC | 4 | +65oC | B | ± 1.5% |
| Z | +10oC | 5 | +85oC | C | ± 2.2% |
| - | - | 6 | +105oC | D | ± 3.3% |
| - | - | 7 | +125oC | E | ± 4.7% |
| - | - | - | - | F | ± 7.5% |
| - | - | - | - | P | ± 10% |
| - | - | - | - | R | ± 15% |
| - | - | - | - | S | ± 22% |
| - | - | - | - | T | - 33%, + 22% |
| - | - | - | - | U | - 56%, + 22% |
| - | - | - | - | V | - 82%, + 22% |
