YTF Capacitor & Resistor Brand Supplier
YTF Capacitor & Resistor Brand Supplier
How to check the life of the SMD capacitor?
SMD capacitors are mainly used to eliminate crosstalk of various high-frequency signals generated by the chip itself to other chips, so that each chip module can work normally without interference. In the high-frequency electronic oscillation circuit, the chip capacitor and the crystal oscillator and other components form an oscillation circuit to provide the required clock frequency for various circuits.
Test method of SMD capacitor service life
1.The test method
Low-voltage chip capacitor (≤100V) 
Voltage: 1.5 times the rated operating voltage.
Time: 1000 hours.
Temperature: 125 ° C (NPO, X7R) 85 ° C (X5R, Y5V).
Charging current: should not exceed 50mA.
Storage conditions: room temperature.
Storage time: 24 hours (type I), or 48 hours (type II).
2.Test Standards:
ΔC / C
Class I: ≤ ± 2% or ± 1pF, whichever is greater
Class Ⅱ: B, X: ≤ ± 20%; E, F: ≤ ± 30%
ΔC / C:
Class I: ≤ ± 2% or ± 1pF, whichever is greater
Type II: B, X: ≤ ± 20%; E, F: ≤ ± 30%
DF:
≤2 times the initial standard
3. The aging life of the chip capacitor is generally of little practical significance. Even if a capacitor is produced for many years, it can still be used normally.
Shenzhen Jinmaoyuan Technology Co., Ltd. is a professional aluminum electrolytic capacitor manufacturer. “YTF capacitor” is our own brand. We will divide the YTF capacitor series according to the length of capacitor life. Our company also has a complete and scientific quality management system to ensure product quality.
