C0603X123J3JAC7867 vs C0805C124K8RACTU
| Part Number |
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| Category | Ceramic Capacitors | Ceramic Capacitors |
| Manufacturer | KEMET | KEMET |
| Description | CAP CER 0.012UF 25V U2J 0603 | CAP CER 0.12UF 10V X7R 0805 |
| Package | Tape & Reel (TR) | 0805 (2012 Metric) |
| Series | SMD Comm U2J Flex | C |
| Features | Low ESL, Soft Termination, Low Dissipation Factor | Low ESL |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C |
| Mounting Type | Surface Mount, MLCC | Surface Mount, MLCC |
| Package / Case | 0603 (1608 Metric) | 0805 (2012 Metric) |
| Applications | Boardflex Sensitive | General Purpose |
| Tolerance | ±5% | ±10% |
| Temperature Coefficient | U2J | X7R |
| Size / Dimension | 0.063" L x 0.031" W (1.60mm x 0.80mm) | 0.079" L x 0.049" W (2.00mm x 1.25mm) |
| Voltage - Rated | 25V | 10V |
| Lead Spacing | - | - |
| Thickness (Max) | 0.034\" (0.87mm) | 0.035" (0.88mm) |
| Ratings | - | - |
| Height - Seated (Max) | - | - |
| Capacitance | 0.012 µF | 0.12µF |
| Lead Style | - | - |
| Failure Rate | - | - |
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1. Is ceramic capacitor AC or DC?
Ceramic capacitors can be used in both AC and DC circuits. They have no polarity, so they can be installed at will.
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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 do ceramic capacitors make noise?
Some types of ceramic capacitors (particularly Class 2 ceramic capacitors) produce micro-vibrations when the voltage changes due to their material properties, which in turn cause faint mechanical noise.
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4. Can I replace ceramic capacitors with film capacitors?
Film capacitors can be used to replace ceramic capacitors in some application scenarios, especially when better temperature stability and lower losses are required.
