GQM1885C2A4R7BB01D vs GQM2195C2A5R0CB01D
| Part Number |
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| Category | Ceramic Capacitors | Ceramic Capacitors |
| Manufacturer | Murata Electronics | Murata Electronics |
| Description | CAP CER 4.7PF 100V C0G/NP0 0603 | CAP CER 5PF 100V C0G/NP0 0805 |
| Package | 0603 (1608 Metric) | 0805 (2012 Metric) |
| Series | GQM | GQM |
| Features | High Q, Low Loss | High Q, Low Loss |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C |
| Mounting Type | Surface Mount, MLCC | Surface Mount, MLCC |
| Package / Case | 0603 (1608 Metric) | 0805 (2012 Metric) |
| Applications | RF, Microwave, High Frequency | RF, Microwave, High Frequency |
| Tolerance | ±0.1pF | ±0.25pF |
| Temperature Coefficient | C0G, NP0 | C0G, NP0 |
| Size / Dimension | 0.063" L x 0.032" W (1.60mm x 0.80mm) | 0.079" L x 0.049" W (2.00mm x 1.25mm) |
| Voltage - Rated | 100V | 100V |
| Thickness (Max) | 0.035" (0.90mm) | 0.037" (0.95mm) |
| Capacitance | 4.7pF | 5pF |
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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 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. -
3. Does the voltage of ceramic capacitors matter?
Voltage ratings are critical to ensure safe operation. Using a capacitor below the rated voltage may cause premature failure; using a capacitor above the rated voltage may cause immediate damage.
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4. Which side of a ceramic capacitor is the positive side?
Ceramic capacitors are non-polarized, so there is no positive or negative side.
