C317C101K2R5TA vs FK28C0G1H681J
| Part Number |
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| Category | Ceramic Capacitors | Ceramic Capacitors |
| Manufacturer | KEMET | TDK Corporation |
| Description | CAP CER 100PF 200V X7R RADIAL | CAP CER 680PF 50V C0G RADIAL |
| Package | Bulk | Radial |
| Series | GoldMax 300 Comm X7R | FK |
| Features | - | - |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | Radial | Radial |
| Applications | General Purpose | General Purpose |
| Tolerance | ±10% | ±5% |
| Temperature Coefficient | X7R | C0G, NP0 |
| Size / Dimension | 0.150" L x 0.100" W (3.81mm x 2.54mm) | 0.157" L x 0.098" W (4.00mm x 2.50mm) |
| Voltage - Rated | 200V | 50V |
| Lead Spacing | 0.200\" (5.08mm) | 0.197" (5.00mm) |
| Thickness (Max) | - | - |
| Ratings | - | - |
| Height - Seated (Max) | 0.200\" (5.08mm) | 0.217" (5.50mm) |
| Capacitance | 100 pF | 680pF |
| Lead Style | Formed Leads | Formed Leads - Kinked |
| 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. 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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3. Do ceramic capacitors degrade over time?
The capacitance value of ceramic capacitors may decrease slightly over time and environmental factors, but this is usually a slow process.
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4. Can ceramic capacitors be used for audio?
Ceramic capacitors can be used in audio circuits, but care needs to be taken to select the right type to avoid introducing unnecessary noise or distortion.

