0603J1000121KXR vs 0603J0630681KXR
| Part Number |
|
|
| Category | Ceramic Capacitors | Ceramic Capacitors |
| Manufacturer | Knowles Syfer | Knowles Syfer |
| Description | CAP CER 120PF 100V X7R 0603 | CAP CER 680PF 63V X7R 0603 |
| Package | 0603 (1608 Metric) | 0603 (1608 Metric) |
| Series | - | - |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C |
| Mounting Type | Surface Mount, MLCC | Surface Mount, MLCC |
| Package / Case | 0603 (1608 Metric) | 0603 (1608 Metric) |
| Applications | General Purpose | General Purpose |
| Tolerance | ±10% | ±10% |
| Temperature Coefficient | X7R (2R1) | X7R (2R1) |
| Size / Dimension | 0.063" L x 0.032" W (1.60mm x 0.80mm) | 0.063" L x 0.032" W (1.60mm x 0.80mm) |
| Voltage - Rated | 100V | 63V |
| Thickness (Max) | 0.032" (0.80mm) | 0.032" (0.80mm) |
| Capacitance | 120pF | 680pF |
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1. Can I replace film capacitors with ceramic capacitors?
In many cases, ceramic capacitors can be used to replace film capacitors, especially when smaller size and lower cost are required. However, it is important to note that ceramic capacitors may have different temperature coefficients and self-healing characteristics, which may affect performance in a specific application.
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2. How do I know if my ceramic capacitor is bad?
Visual inspection: Check for cracks, bulges, or other physical damage.
Multimeter test: Measure the capacitance value to see if it is close to the nominal value, and check for shorts or opens. -
3. Why are mica capacitors so expensive?
Mica capacitors are expensive because of their excellent electrical properties (such as very low dissipation factor and stable temperature coefficient) and their high production costs.
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4. Do ceramic capacitors degrade over time?
The capacitance value of ceramic capacitors may decrease slightly over time and environmental factors, but this is usually a slow process.

