1808J5000123JDR vs 1808J5000273JDR
| Part Number |
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| Category | Ceramic Capacitors | Ceramic Capacitors |
| Manufacturer | Knowles Syfer | Knowles Syfer |
| Description | CAP CER 0.012UF 500V X7R 1808 | CAP CER 0.027UF 500V X7R 1808 |
| Package | 1808 (4520 Metric) | 1808 (4520 Metric) |
| Series | - | - |
| Features | High Temperature | High Temperature |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C |
| Mounting Type | Surface Mount, MLCC | Surface Mount, MLCC |
| Package / Case | 1808 (4520 Metric) | 1808 (4520 Metric) |
| Applications | High Reliability | High Reliability |
| Tolerance | ±5% | ±5% |
| Temperature Coefficient | X7R | X7R |
| Size / Dimension | 0.177" L x 0.079" W (4.50mm x 2.00mm) | 0.177" L x 0.079" W (4.50mm x 2.00mm) |
| Voltage - Rated | 500V | 500V |
| Thickness (Max) | 0.079" (2.00mm) | 0.079" (2.00mm) |
| Capacitance | 0.012µF | 0.027µF |
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1. Do ceramic capacitors deteriorate over time?
While ceramic capacitors are relatively stable, their capacitance value may decrease slightly over time, especially under extreme environmental conditions. However, this change is usually small and will not significantly affect most applications.
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2. Why do ceramic capacitors short?
Overvoltage: Exceeding the rated voltage may cause internal breakdown.
Mechanical damage: External impact or pressure.
Manufacturing defects: Problems with the internal structure. -
3. 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. -
4. Do ceramic capacitors have a shelf life?
Ceramic capacitors themselves do not have a strict shelf life, but after long-term storage, testing is recommended to confirm their performance.
