Ceramic Disc Capacitor
We offer ceramic disc capacitors, a reliable and robust solution for various electronic applications. These capacitors feature a simple structure with a ceramic disc sandwiched between two metal electrodes. They provide good stability and are suitable for applications requiring moderate capacitance values and higher voltages.
Buy Ceramic Disc Capacitors Wholesale with Good Price
We offer competitive wholesale pricing on a wide range of ceramic disc capacitors. Our extensive inventory ensures prompt delivery, and our experienced team provides expert guidance to help you select the right components for your specific needs.
ceramic disc capacitor identification
Ceramic disc capacitors are often identified by a code printed on the body. This code typically indicates the capacitance value, tolerance, and sometimes the voltage rating.
Capacitance: Usually represented by a three-digit code.
- The first two digits represent the significant figures.
- The third digit indicates the number of zeros to add.
- For example, “103” signifies 10,000 picofarads (10 pF).
Tolerance: May be indicated by a letter code (e.g., “K” for ±10%, “J” for ±5%).
Voltage Rating: Sometimes printed on the capacitor, but may require referring to datasheets or markings on the packaging.
Ceramic Disc Capacitor Datasheet
A ceramic disc capacitor datasheet provides detailed specifications and characteristics of a specific type or series of ceramic disc capacitors.
Key information typically included:
- Electrical Specifications: Capacitance, voltage rating, tolerance, temperature coefficient, dissipation factor (DF), insulation resistance.
- Physical Characteristics: Dimensions (diameter, thickness), lead spacing, lead material.
- Environmental Specifications: Operating temperature range, humidity, vibration resistance.
- Applications: Suitable applications for the capacitor (e.g., coupling, decoupling, filtering).
- Marking and Ordering Information: Part number, packaging, and other relevant information.
Datasheets are essential for engineers and designers to select the appropriate capacitors for their electronic circuits, ensuring proper performance and reliability.
1uf ceramic disc capacitor
We offer 1µF ceramic disc capacitors, ideal for general-purpose applications. These components are known for their reliability, stability, and compact size. They are suitable for a wide range of circuits, including filtering, coupling, and decoupling.
103 ceramic disc capacitor
We offer 103 ceramic disc capacitors, which are small, reliable components. They are typically used in low-voltage applications such as coupling, decoupling, and bypassing. These capacitors are known for their stability and cost-effectiveness.
104 ceramic disc capacitor
We offer 104 ceramic disc capacitors, indicating a capacitance value of 0.1µF (10 x 10^4 pF). These reliable components are ideal for general-purpose applications, providing good stability and performance in various electronic circuits.
FAQs
what is a ceramic disc capacitor?
A ceramic disc capacitor is a type of passive electronic component that utilizes a ceramic material as its dielectric.
It consists of a disc-shaped piece of ceramic sandwiched between two metal electrodes. These electrodes are typically made of silver or other conductive materials.
what does a ceramic disc capacitor do?
A ceramic disc capacitor is a type of passive electronic component that stores electrical energy.
It consists of a disc of ceramic material sandwiched between two metal electrodes. The ceramic material acts as a dielectric, a substance that can be polarized by an electric field.
The primary function of a ceramic disc capacitor is to store electrical charge. When a voltage is applied across the electrodes, an electric field is created within the ceramic material. This electric field causes the positive and negative charges within the ceramic to separate, creating a buildup of charge on the electrodes.
This stored charge can then be released when needed. For example, capacitors can be used to smooth out voltage fluctuations in power supplies, filter out unwanted frequencies in signals, and provide short bursts of energy.
In essence, ceramic disc capacitors act as temporary reservoirs for electrical energy, playing a crucial role in many electronic circuits.
How to Read Ceramic Disc Capacitor Values?
Ceramic disc capacitors often have a three-digit code printed on them to indicate their capacitance value. This is how to read ceramic disc capacitors.
This code follows a specific format:
- The first two digits represent the significant figures of the capacitance value.
- The third digit represents the number of zeros that follow the first two digits.
For example, a capacitor marked “103” would have a capacitance of 10,000 picofarads (pF), which is equivalent to 0.01 microfarads (μF).
- 10 (first two digits)
- 3 (add three zeros)
- 10,000 pF
This code provides a concise way to represent the capacitance value, especially for smaller capacitors where using full numerical values would be cumbersome.
Note: Capacitance is typically measured in picofarads (pF) for ceramic disc capacitors.
what is ceramic disc capacitor polarity?
Ceramic disc capacitors are non-polarized. This means they can be connected in any direction within a circuit without affecting their performance or causing damage.
Unlike polarized capacitors (like electrolytic capacitors), ceramic disc capacitors do not have a specific positive and negative terminal.
how to test a ceramic disc capacitor?
You can test a ceramic disc capacitor using a multimeter. Here’s how:
Check for Shorts:
- Set your multimeter to the resistance (ohm) setting.
- Touch the probes to the capacitor leads.
- A good capacitor will show high resistance (ideally an open circuit).
- If the meter shows low resistance (close to zero ohms), the capacitor is shorted and faulty.
Check for Opens:
- If the multimeter shows infinite resistance (no continuity) in the resistance test, the capacitor may be open.
Measure Capacitance (Optional):
- If your multimeter has a capacitance measurement setting, you can measure the actual capacitance of the capacitor.
- Compare the measured value to the marked value on the capacitor to see if it’s within an acceptable range.
Important Notes:
- Safety First: Always ensure the circuit is de-energized before testing components.
- Multimeter Accuracy: The accuracy of your multimeter will affect the reliability of your test results.
- Capacitor Values: For very small capacitance values, some multimeters may not provide accurate readings.
By performing these simple tests, you can quickly determine if a ceramic disc capacitor is functioning correctly or if it needs to be replaced.
Multilayer Ceramic Capacitor vs Ceramic Disc
Multilayer Ceramic Capacitors (MLCCs)
Structure:
- Consist of numerous thin layers of ceramic dielectric alternating with conductive layers.
- This layered structure allows for high capacitance values in a very small package.
Advantages:
- High Capacitance Density: Achieves large capacitance in a tiny footprint.
- Small Size: Ideal for surface-mount technology (SMT) and miniaturized electronics.
- Wide Range of Capacitance Values: Available in a vast array of capacitances.
Disadvantages:
- Can be fragile: Due to their thin layers.
- Temperature Sensitivity: Some types exhibit significant capacitance variation with temperature.
Ceramic Disc Capacitors
Structure:
- Simple design with two metal electrodes separated by a single disc of ceramic material.
Advantages:
- Robust: Generally more robust and less prone to mechanical damage than MLCCs.
- Higher Voltage Ratings: Can typically handle higher voltages.
Disadvantages:
- Larger Size: Compared to MLCCs for the same capacitance.
- Lower Capacitance Density: Cannot achieve the same high capacitance in a given volume as MLCCs.
Key Differences Summarized:
| Feature | MLCC | Ceramic Disc |
|---|---|---|
| Structure | Multi-layered | Single disc |
| Size | Very small | Larger |
| Capacitance Density | High | Lower |
| Fragility | Can be fragile | More robust |
| Voltage Rating | Generally lower | Generally higher |
| Temperature Stability | Can vary depending on type | Generally more stable |
In essence:
- Choose MLCCs when: Size is critical, high capacitance is needed in a small space, and cost is not the primary concern.
- Choose Ceramic Disc Capacitors when: Higher voltage ratings are required, robustness is paramount, or cost is a major factor.
