The 0402 is a surface-mount ceramic capacitor. Ceramic capacitors are made of ceramic material and are commonly used in electronic circuits for filtering,...
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The 0402 is a surface-mount ceramic capacitor. Ceramic capacitors are made of ceramic material and are commonly used in electronic circuits for filtering, coupling, and decoupling applications. They are known for their high insulation resistance, low leakage current, and relatively low cost. The '0402' part of the designation refers to the component's size in inches, specifically 0.04 inches by 0.02 inches, which is a common size for surface-mount components.
| Parameter | Value |
|---|---|
| Operating Temperature | -55°C to +125°C |
| Storage Temperature | -55°C to +150°C |
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Capacitance | At 1kHz, 1Vrms | 90pF | 100pF | 110pF | pF |
| Dissipation Factor | At 1kHz, 1Vrms | 0.001 | 0.002 | 0.003 |
When designing with ceramic capacitors, consider the voltage and capacitance requirements of your application. Ensure the capacitor's voltage rating exceeds the maximum voltage it will be exposed to. Also, consider the temperature range and the potential for voltage coefficient effects on capacitance.
For surface-mount components like the 0402, proper soldering techniques are crucial. Ensure the PCB is clean, and the solder paste is applied correctly. Follow recommended soldering profiles to avoid damaging the component.
Ceramic capacitors can be sensitive to mechanical stress. Avoid flexing or bending the PCB near the capacitor. Also, be mindful of the capacitor's position relative to other components to minimize electromagnetic interference.