C0603X123J4JAC7867 vs C0603X122J3JAC7867
| Part Number |
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| Category | Ceramic Capacitors | Ceramic Capacitors |
| Manufacturer | KEMET | KEMET |
| Description | CAP CER 0.012UF 16V U2J 0603 | CAP CER 1200PF 25V U2J 0603 |
| Package | Tape & Reel (TR) | Tape & Reel (TR) |
| Series | SMD Comm U2J Flex | SMD Comm U2J Flex |
| Features | Low ESL, Soft Termination, Low Dissipation Factor | Low ESL, Soft Termination, Low Dissipation Factor |
| 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 | Boardflex Sensitive | Boardflex Sensitive |
| Tolerance | ±5% | ±5% |
| Temperature Coefficient | U2J | U2J |
| Size / Dimension | 0.063" L x 0.031" W (1.60mm x 0.80mm) | 0.063" L x 0.031" W (1.60mm x 0.80mm) |
| Voltage - Rated | 16V | 25V |
| Lead Spacing | - | - |
| Thickness (Max) | 0.034\" (0.87mm) | 0.034\" (0.87mm) |
| Ratings | - | - |
| Height - Seated (Max) | - | - |
| Capacitance | 0.012 µF | 1200 pF |
| Lead Style | - | - |
| Failure Rate | - | - |
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1. What are ceramic capacitors used for?
Ceramic capacitors are widely used in various electronic devices, mainly for:
Coupling and decoupling: used in circuits to isolate DC signals while transmitting AC signals.
Filtering: remove noise from the power supply or smooth the output voltage.
Resonant circuit: such as oscillators in radio frequency (RF) circuits.
Temperature compensation: some types of ceramic capacitors have temperature coefficients that can be used to stabilize circuit performance.
Bypass: provide a low impedance path for high-frequency signals, thereby reducing the impact on other parts. -
2. 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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3. 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. -
4. Which side of a ceramic capacitor is the positive side?
Ceramic capacitors are non-polarized, so there is no positive or negative side.
