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Murata Electronics DEHR33D471KA3B Environmental and export classification status description

Overview of muRata Manufacturing DEHR33D471KA3B The muRata DEHR33D471KA3B is a type of aluminum electrolytic capacitor. This component is typically used in various electronic applications for energy storage, filtering, and decoupling. It is especially suited for applications where high capacitance values are required in conjunction with a compact form factor. Functions 1. Energy Storage: It stores electrical energy, which can be released when needed in circuits. 2. Smoothing: It reduces voltage fluctuations in power supplies by smoothing out ripples. 3. Coupling and Decoupling: It allows AC signals to pass while blocking DC, and can decouple different stages of circuits to prevent interference. 4. Timing Applications: It can be used in timing circuits due to its ability to charge and discharge at predictable rates. Applications - Power Supply Circuits: Commonly used in switch-mode power supplies (SMPS) to filter out noise and stabilize voltage. - Audio Equipment: Used in audio amplifiers and mixers for signal coupling and decoupling. - Consumer Electronics: Found in televisions, computers, and other consumer devices for energy storage and filtering functions. - Industrial Devices: Implemented in industrial electronics for controlling and stabilizing power systems. - Automotive Applications: Helps in stabilizing and filtering in automotive electronic circuits. Alternative Components - Ceramic Capacitors: Smaller in size and offer lower capacitance values but have better high-frequency performance. - Tantalum Capacitors: Offer higher capacitance in smaller sizes but can be more expensive and have different failure modes. - Film Capacitors: Known for their stability and low-loss characteristics, suitable for high-voltage applications. - Supercapacitors: Provide higher capacitance and energy density, suitable for applications requiring rapid charge and discharge cycles. Embedded Modules - Capacitor Networks: Combinations of capacitors (including DEHR33D471KA3B) in parallel or series for specific capacitance needs. - Integrated Circuits with Capacitive Sensing: Modules utilizing the DEHR33D471KA3B for timing and stable operation in microcontrollers. - Power Management Modules: Using capacitors in conjunction with inductors and other components for efficient power distribution. Related Q&A Q1: What voltage rating does the muRata DEHR33D471KA3B have? A1: The voltage rating would need to be checked in the specific data sheet, but electrolytic capacitors typically have voltage ratings ranging from 6.3V to several hundred volts. Q2: What is the temperature range for the DEHR33D471KA3B? A2: The temperature range can vary by model, but many aluminum electrolytic capacitors operate effectively between -40°C to +105°C. Q3: How long does the muRata DEHR33D471KA3B typically last in a circuit? A3: The lifespan is often rated in hours at a certain temperature, typically at 105°C, and can range from 1,000 to 10,000 hours depending on the application and conditions. Q4: Can the muRata DEHR33D471KA3B be used in high-frequency applications? A4: While it can be used in many applications, aluminum electrolytic capacitors are generally less effective at high frequencies compared to ceramic or tantalum capacitors. Q5: What happens if the DEHR33D471KA3B is operated outside its voltage rating? A5: Operating a capacitor outside its voltage rating can lead to dielectric breakdown, resulting in loss of capacitance, leakage, or even catastrophic failure. Always ensure that the ratings match the application requirements.