C907U390JZSDCA7317 vs C907U470JZSDCA7317
| Part Number |
|
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| Category | Ceramic Capacitors | Ceramic Capacitors |
| Manufacturer | KEMET | KEMET |
| Description | CAP CER 9PF 440VAC SL RADIAL | CAP CER 47PF 440VAC SL RADIAL |
| Package | Tape & Box (TB) | Tape & Box (TB) |
| Series | C900AC SFTY X1-440 Y2-300 | C900AC SFTY X1-440 Y2-300 |
| Features | - | - |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | Radial, Disc | Radial, Disc |
| Applications | Safety | Safety |
| Tolerance | ±5% | ±5% |
| Temperature Coefficient | SL | SL |
| Size / Dimension | 0.276\" Dia (7.00mm) | 0.276\" Dia (7.00mm) |
| Voltage - Rated | 440VAC | 440VAC |
| Lead Spacing | 0.295\" (7.50mm) | 0.295\" (7.50mm) |
| Thickness (Max) | - | - |
| Ratings | X1, Y2 | X1, Y2 |
| Height - Seated (Max) | - | - |
| Capacitance | 9 pF | 47 pF |
| Lead Style | Formed Leads - Kinked | Formed Leads - Kinked |
| 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. 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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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. 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.
