What is 1200uf 400v Capacitor?
The 1200uf 400v capacitor is an electrolytic capacitor designed for applications requiring a high capacitance value (1200 microfarads) and a voltage rating of up to 400 volts. It's a passive electronic component that stores energy electrostatically in an electric field. Typically constructed with an aluminium electrolytic solution, it’s commonly used in power supplies, inverters, and various electronic circuits for smoothing, filtering, and energy storage. Common brands include EPCOS (TDK), Nichicon, Rubycon, and Samwha. These capacitors are available in different physical sizes and lead configurations. Due to its higher voltage and capacitance, it’s often found in heavier-duty applications compared to lower-rated capacitors. It is crucial to ensure proper polarity when installing electrolytic capacitors to prevent damage or explosion.
Key Features & Specifications
This 1200uf 400v capacitor boasts several key features: * **Capacitance:** 1200uf (Microfarads) ±20% * **Voltage Rating:** 400V DC (Direct Current) * **Operating Temperature:** -25°C to +105°C (depending on the brand and series) * **Leakage Current:** Typically less than 0.01CV or 3mA (whichever is smaller, where C is capacitance in uF and V is voltage in volts). Varies by manufacturer. * **Equivalent Series Resistance (ESR):** This is an important parameter for high-frequency applications. Typical ESR ranges from 0.1 to 0.5 ohms. Higher ESR can lead to heat dissipation and reduced performance. * **Life Expectancy:** Ranging from 2000 to 5000 hours at rated temperature, depending on the manufacturer and series. Longer life series are available. * **Dimensions:** Diameter typically ranges from 22mm to 35mm, and Height from 30mm to 50mm, depending on the specific model and manufacturer. * **Lead Type:** Radial or Snap-in.
Use Cases & Applications
The 1200uf 400v capacitor finds extensive use in power electronics. It's commonly employed in switched-mode power supplies (SMPS) to smooth the rectified DC voltage, reducing ripple and providing a stable voltage output. In inverters (such as those used in solar power systems or motor drives), it serves as a DC link capacitor, storing energy and ensuring a constant voltage supply to the inverter stage. Audio amplifiers also use these capacitors for power supply filtering and decoupling. DIY electronics enthusiasts use them in projects requiring higher voltage and capacitance, such as custom power supplies or high-power LED drivers. Technicians often need to replace these capacitors in faulty electronic equipment like TVs, computers, and industrial machinery.
Buying Guide - How to Choose
When purchasing a 1200uf 400v capacitor, verify the datasheet to ensure it meets your application's specific requirements. Crucially, check the operating temperature range and ESR. For high-frequency applications, a low ESR capacitor is essential. Ensure the capacitor's dimensions fit your circuit board or enclosure. Always double-check the polarity before installation. Using a capacitor with a lower voltage rating than required can lead to catastrophic failure. Consider purchasing from reputable brands like EPCOS or Nichicon for higher reliability. Avoid buying from unverified sources to prevent receiving counterfeit or substandard components. Check the date code to ensure the capacitor is relatively new, as electrolytic capacitors have a limited shelf life.
Why Buy from Nilgiri Stores?
At Nilgiri Stores, we understand the importance of reliable electronic components. That's why we offer only authentic 1200uf 400v capacitors sourced directly from trusted manufacturers. We provide fast and reliable delivery across India, ensuring your components arrive quickly and safely. Our competitive pricing makes us the ideal choice for both hobbyists and professionals. We stand behind the quality of our products with a satisfaction guarantee. Our dedicated customer support team is always available to assist you with any questions or concerns. Shop with confidence at Nilgiri Stores and experience the difference!
Quality & Authenticity
Nilgiri Stores is committed to providing only genuine electronic components. We source our 1200uf 400v capacitors from authorized distributors and directly from manufacturers. We implement rigorous quality control checks to ensure that every capacitor meets the specified standards. Many of our capacitors come with manufacturer warranties, providing you with added peace of mind. Our commitment to quality and authenticity ensures that you receive a reliable and long-lasting component for your projects.
What Our Customers Say
Customers consistently praise the 1200uf 400v capacitors for their reliable performance and long lifespan. Many report that these capacitors effectively filter power supply noise and improve the stability of their electronic circuits. Customers appreciate the excellent value for money and the fast delivery provided by Nilgiri Stores. Several reviews mention the high build quality and the capacitors' ability to withstand demanding operating conditions. Positive feedback also highlights the helpfulness of Nilgiri Stores' customer support team.