C947U472MZVDAAWL20 vs CGA4J3X8R1C684K125AD
| Part Number |
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| Category | Ceramic Capacitors | Ceramic Capacitors |
| Manufacturer | KEMET | TDK Corporation |
| Description | CAP CER 4700PF 440VAC Y5V RADIAL | CAP CER 0.68UF 16V 0805 EPOXY |
| Package | Tape & Reel (TR) | Tape & Reel (TR) |
| Series | C900AC SFTY X1-440 Y2-300 | CGA |
| Features | - | Epoxy Mountable, High Temperature |
| Operating Temperature | -40°C ~ 125°C | -55°C ~ 150°C |
| Mounting Type | Through Hole | Surface Mount, MLCC, Epoxy |
| Package / Case | Radial, Disc | 0805 (2012 Metric) |
| Applications | Safety | Automotive |
| Tolerance | ±20% | ±10% |
| Temperature Coefficient | Y5V (F) | X8R |
| Size / Dimension | 0.433\" Dia (11.00mm) | 0.079" L x 0.049" W (2.00mm x 1.25mm) |
| Voltage - Rated | 440VAC | 16V |
| Lead Spacing | 0.295\" (7.50mm) | - |
| Thickness (Max) | - | 0.059\" (1.50mm) |
| Ratings | X1, Y2 | AEC-Q200 |
| Height - Seated (Max) | - | - |
| Capacitance | 4700 pF | 0.68 µF |
| Lead Style | Straight | - |
| Failure Rate | - | - |
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1. Why are ceramic capacitors better?
Small size: suitable for high-density circuit board design.
Good temperature resistance: can work over a wide temperature range.
High reliability: no electrolyte, so it is not easy to age.
Good frequency response: suitable for high-frequency applications.
Low ESR: low equivalent series resistance, which helps to improve efficiency. -
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. Which side of a ceramic capacitor is the positive side?
Ceramic capacitors are non-polarized, so there is no positive or negative side.
