BFC238314394 vs T523J227M016APE0707280
| Part Number |
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| Category | Film Capacitors | Film Capacitors |
| Manufacturer | Vishay Beyschlag/Draloric/BC Components | KEMET |
| Description | CAP FILM 0.39UF 5% 400VDC RADIAL | CAP TANT POLY 220UF 16V 2924 |
| Package | Bulk | Tape & Reel (TR) |
| Series | MMKP383 | KO-CAP® T523 |
| Features | - | General Purpose |
| Operating Temperature | -55°C ~ 105°C | -55°C ~ 85°C |
| Mounting Type | Through Hole | Surface Mount |
| Package / Case | Radial | 2924 (7360 Metric) |
| Applications | High Pulse, DV/DT | - |
| Tolerance | ±5% | ±20% |
| Size / Dimension | 1.024" L x 0.394" W (26.00mm x 10.00mm) | 0.287" L x 0.236" W (7.30mm x 6.00mm) |
| Termination | PC Pins | - |
| Voltage Rating - AC | 200V | - |
| Voltage Rating - DC | 400V | - |
| Lead Spacing | 0.886\" (22.50mm) | - |
| Ratings | - | - |
| Height - Seated (Max) | 0.768\" (19.50mm) | 0.059\" (1.50mm) |
| Capacitance | 0.39 µF | 220 µF |
| ESR (Equivalent Series Resistance) | - | 70mOhm @ 100kHz |
| Dielectric Material | Polypropylene (PP), Metallized | - |
| Type | - | Molded |
| Voltage - Rated | - | 16 V |
| Lifetime @ Temp. | - | 2000 Hrs @ 85°C |
| Manufacturer Size Code | - | J |
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1. What are the uses of power film capacitors?
Power film capacitors are widely used in power systems, communication equipment, automotive electronics and household appliances.
Power system
In power systems, power film capacitors are mainly used in high-voltage direct current transmission (HVDC) and reactive power compensation devices. HVDC transmission has the advantages of long transmission distance, low loss and small impact on the environment. Power film capacitors can effectively improve the voltage stability of the system, reduce voltage fluctuations and improve the quality of electric energy. In addition, power film capacitors can also be used in reactive power compensation devices. By adjusting the reactive power in the power grid, the power factor of the power grid can be improved, line loss can be reduced and the utilization rate of electric energy can be improved.
Communication equipment
In communication equipment, power film capacitors are mainly used in devices such as filters, couplers and isolators. Filters are key components in communication equipment, which are used to eliminate noise and interference in signals. Power film capacitors are small in size, light in weight and have good frequency characteristics, which can effectively improve the performance of filters. Couplers and isolators are used for signal transmission and isolation. Power film capacitors can achieve high-frequency and high-isolation coupling and isolation functions to meet the high-performance requirements of communication equipment.
Automotive electronics
In the field of automotive electronics, power film capacitors are used in electronic control units (ECUs), motor controllers, and battery management systems. ECUs are the core components of automotive electronic systems and are responsible for controlling various functions of the car. Power film capacitors can improve their reliability and stability. Motor controllers are key components of electric vehicles and are responsible for controlling the speed and torque of the motor. Power film capacitors can achieve efficient and high-precision motor control functions. Battery management systems are responsible for monitoring and managing battery status. Power film capacitors can improve their accuracy and stability.
Household appliances
In the field of household appliances, power film capacitors are mainly used in home appliances such as air conditioners, refrigerators, and washing machines. These home appliances usually require high power and high-frequency applications. The high-frequency filtering and bypass characteristics of power film capacitors make them perform well in these applications. -
2. Are film capacitors suitable for audio?
Suitable
Film capacitors are very suitable for audio applications. Film capacitors perform well in audio circuits and have the following advantages:
Non-polarity: Film capacitors have no positive or negative poles, which gives them greater flexibility in circuit design.
High insulation impedance: The insulation impedance of film capacitors is very high, which can effectively reduce leakage current in the circuit and improve the stability of the circuit.
Excellent frequency characteristics: Film capacitors have a wide frequency response and can provide stable capacitance performance in the high and low frequency ranges, which is suitable for various frequency changes in audio circuits.
Low dielectric loss: The dielectric loss of film capacitors is very small, which means that during the transmission of audio signals, less energy is lost and the integrity of the signal is maintained.
Self-healing properties: Film capacitors have self-healing properties and can automatically repair internal defects when they occur, extending their service life. -
3. Are film capacitors better than electrolytic capacitors?
Not necessarily
Film capacitors and electrolytic capacitors each have their own advantages and disadvantages, and the specific choice depends on the application scenario.
Advantages of film capacitors
Non-polarity: Film capacitors are non-polar, and there is no need to distinguish between positive and negative poles, avoiding the risk of capacitor explosion due to reverse connection.
Long life: Film capacitors have significantly longer life and better stability.
Wide temperature range: Film capacitors have a wide operating temperature range, generally -40℃~+105℃/110℃, suitable for various ambient temperatures.
High withstand voltage: Film capacitors can withstand overvoltages higher than 1.5 times the rated voltage in a short period of time, and have strong withstand voltage.
Low loss: Film capacitors have low loss and are suitable for high-frequency circuits, especially for occasions requiring low loss and high-frequency applications.
Advantages of electrolytic capacitors
Large capacity: Electrolytic capacitors usually have large capacitance and are suitable for occasions requiring large amounts of energy storage.
Low cost: The cost of electrolytic capacitors is relatively low, suitable for occasions with strict cost requirements.
High energy density: Electrolytic capacitors are a strong choice when cost-effective, high-capacity energy storage is required, especially when maintaining DC output voltage during power outages.
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4. What is the difference between foil capacitors and film capacitors?
Electrode materials, structure, and application areas
The main difference between foil capacitors and film capacitors lies in electrode materials, structures, and application areas.
Electrode materials and structures
Foil capacitors: Foil capacitors usually use metal foil as electrodes. This electrode is formed on a plastic film by vacuum evaporation, which is called a metallized film. This structure can save the thickness of the electrode foil, thereby reducing the volume of the capacitor and making it more miniaturized.
Film capacitors: Film capacitors use plastic films as dielectrics. Common plastic films include polyethylene, polypropylene, polystyrene or polycarbonate. These films overlap at both ends and are rolled into a cylinder to form a capacitor.
