B43742B9398M657 B43742B9398M657 Aluminum Electrolytic Capacitor

B43742B9398M657 is a high-performance aluminum electrolytic capacitor manufactured by TDK, a global leader in electronic components. This specific model is designed for demanding applications requiring robust energy storage and filtering capabilities. As a passive component, its primary function is to store electrical energy electrostatically and then release it when needed, making it crucial for power supply smoothing, energy storage, and filtering in various electronic circuits. TDK’s reputation for quality ensures that this capacitor delivers reliable performance and a long operational lifespan, making it a preferred choice for industrial and professional electronics designs.

Key Specifications

The B43742B9398M657 capacitor boasts several critical specifications that define its performance and suitability for various applications. The Brand, TDK, signifies a commitment to high-quality manufacturing and engineering excellence, assuring designers of the component’s reliability and adherence to industry standards. Its classification under Category: Capacitors and Sub Category: Aluminum Electrolytic Capacitors immediately identifies its core function and construction type. Aluminum electrolytic capacitors are known for their high capacitance values in a relatively compact size, making them ideal for power applications. The Component Type: Aluminum Electrolytic Capacitor further specifies its fundamental nature. The Product Status: Production indicates that this part is actively manufactured and readily available for new designs and ongoing production, ensuring long-term supply stability. The Product Name (TDK): Capacitors with Screw Terminals highlights a key physical feature; screw terminals provide a secure and robust electrical connection, particularly important for high-current applications where reliable contact is paramount and traditional solder connections might be insufficient or impractical. The Main Characteristic 1: 3900µF/400V DC is perhaps the most critical electrical specification. 3900 microfarads (µF) represents a substantial capacitance value, indicating its ability to store a significant amount of charge, essential for power supply filtering and energy storage. The 400V DC voltage rating signifies the maximum continuous DC voltage that can be applied across the capacitor without damage, making it suitable for high-voltage power conversion and industrial power supply applications. Finally, Main Characteristic 2: 76.9mm dia x 96.7mm length provides the physical dimensions of the capacitor. These dimensions are crucial for mechanical design and PCB layout, ensuring proper fit and thermal management within the intended enclosure or system.

Features and Benefits

• High Capacitance and Voltage Rating: With 3900µF and 400V DC, this capacitor offers excellent energy storage and filtering capabilities for high-power and high-voltage applications, ensuring stable power delivery.
• Robust Screw Terminals: The inclusion of screw terminals provides a highly reliable and secure electrical connection, crucial for applications involving high currents or vibrations, enhancing overall system integrity.
• TDK Quality and Reliability: Manufactured by TDK, a renowned leader in passive components, this capacitor guarantees superior quality, consistent performance, and a long operational life, reducing maintenance and replacement costs.
• Optimized for Power Applications: Its design and specifications make it particularly well-suited for demanding power supply units, inverters, and industrial control systems where stable and clean power is essential.
• Production Status Availability: Being in active production ensures consistent supply and support for both current and future projects, providing peace of mind for long-term product lifecycles.

Typical Applications

The B43742B9398M657 aluminum electrolytic capacitor is versatile and finds extensive use in various demanding electronic systems. One primary application is in Industrial Power Supplies, where it is critical for smoothing rectified AC voltage into stable DC power, reducing ripple, and storing energy to handle transient load changes. Its high voltage and capacitance make it ideal for the DC link in switch-mode power supplies (SMPS) used in factory automation and machinery. Another significant use case is in Motor Drives and Inverters. In these systems, the capacitor acts as a DC bus capacitor, filtering the rectified AC input and providing a stable DC voltage for the inverter section that controls motor speed and torque. Its robust construction can withstand the high ripple currents often encountered in such applications. Furthermore, it is commonly employed in Renewable Energy Systems, specifically in solar inverters and wind turbine converters. Here, it helps to stabilize the DC voltage generated by solar panels or wind generators before it is converted into AC for grid connection or battery charging, contributing to the efficiency and reliability of the energy conversion process. Lastly, the B43742B9398M657 is suitable for Uninterruptible Power Supplies (UPS), where it provides critical energy storage to bridge short power interruptions or smooth the output of battery-based systems, ensuring continuous operation of sensitive equipment during power fluctuations or outages.

In summary, the B43742B9398M657 is a premium TDK aluminum electrolytic capacitor offering high capacitance and voltage ratings, robust screw terminals, and proven reliability. This component is an excellent choice for demanding power electronics applications across various industries. It is stocked and shipped across India by Cirkit Electro Components, Mumbai, ensuring prompt delivery for your project needs.

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