C4520C0G3F820K200KA C4520C0G3F820K200KA Ceramic Capacitor (MLCC)

C4520C0G3F820K200KA is a high-quality ceramic capacitor (MLCC) manufactured by TDK, a global leader in electronic components. This specific component, while now obsolete, was designed for commercial-grade applications requiring stable capacitance and high voltage handling. As a Multilayer Ceramic Capacitor (MLCC), it functions as an essential passive component in electronic circuits, storing and releasing electrical energy, filtering noise, and stabilizing voltage. Its robust design and precise electrical characteristics made it suitable for a wide array of demanding commercial electronics before its obsolescence.

Key Specifications

This TDK ceramic capacitor boasts several critical specifications that define its performance and suitability for various applications:

Apps. (Commercial Grade): This attribute signifies that the capacitor was engineered to meet the reliability and performance standards typically required for commercial electronic products. This includes a broad range of devices from consumer electronics to industrial control systems, where consistent operation is paramount but extreme military-grade specifications are not necessary.

Brand (TDK): TDK is a renowned Japanese multinational electronics company known for its high-quality electronic components, including passive components like capacitors, inductors, and ferrites. The TDK brand assures a certain level of engineering excellence and manufacturing quality.

Feature (High): While somewhat generic, this typically refers to the capacitor’s high performance in specific parameters, often implying high reliability, high voltage handling, or high stability, which are critical for demanding commercial applications.

Tolerance (±10%): This indicates the permissible deviation of the actual capacitance value from its nominal value. A ±10% tolerance is common for general-purpose capacitors, offering a good balance between precision and cost-effectiveness for many commercial applications where exact capacitance is not hyper-critical but stability is important.

L x W Size (4.5mm x 2.0mm [EIA 1808]): This specifies the physical dimensions of the surface-mount component. The 4.5mm length by 2.0mm width corresponds to the EIA 1808 standard package size, which is a relatively large footprint for an MLCC, often indicating higher capacitance or voltage ratings compared to smaller packages. This size is important for PCB layout and automated assembly processes.

Capacitance (82pF): This is the nominal capacitance value, indicating the component’s ability to store an electrical charge. 82 picofarads is a relatively small capacitance, typically used in high-frequency circuits for filtering, coupling, or resonant applications rather than bulk energy storage.

T(Max.) / mm (2.2): This refers to the maximum thickness of the component, 2.2 millimeters. This dimension is crucial for mechanical design, ensuring the component fits within specific height constraints on a printed circuit board or within an enclosure.

Temp. Chara. (C0G): C0G (also known as NP0) is a highly stable dielectric material. Capacitors with C0G dielectric exhibit extremely stable capacitance over a wide temperature range, low dielectric loss, and negligible aging effects. This makes them ideal for precision timing, filtering, and resonant circuits where temperature stability is critical.

Component Type (Ceramic Capacitor (MLCC)): This clearly identifies the component as a Multilayer Ceramic Capacitor, a type of fixed capacitor where ceramic material acts as the dielectric. MLCCs are widely used due to their small size, high reliability, and excellent frequency response.

Product Status (Obsolete): This indicates that the manufacturer no longer produces this specific part. While it may still be available through distributors with existing stock, it is not recommended for new designs.

Rated Voltage [DC] / V (3000): This is the maximum DC voltage that can be continuously applied across the capacitor without causing dielectric breakdown. A 3000V rating is exceptionally high for an MLCC, making this component suitable for high-voltage power supplies, industrial equipment, and other applications where significant voltage levels are present.

Cap.Change or Temp.Coef. (0±30ppm/°C): This specification, directly related to the C0G dielectric, indicates a very low capacitance change over temperature. A coefficient of 0±30 parts per million per degree Celsius signifies excellent temperature stability, ensuring consistent performance even with significant temperature fluctuations.

Operating Temp. Range / °C (-55 to 125): This defines the ambient temperature range within which the capacitor is designed to operate reliably. A wide range from -55°C to 125°C highlights its robustness and suitability for harsh environmental conditions, common in industrial and automotive applications.

Features and Benefits

• Exceptional Temperature Stability: The C0G dielectric ensures minimal capacitance variation (0±30ppm/°C) across a broad operating temperature range of -55°C to 125°C, making it ideal for precision applications.
• High Voltage Handling: With a rated voltage of 3000V DC, this capacitor can withstand significant electrical stress, providing reliability in high-voltage power conversion and distribution systems.
• Compact and Robust Design: The EIA 1808 package (4.5mm x 2.0mm) offers a balance between physical size and electrical performance, suitable for surface-mount assembly in commercial-grade equipment.
• Reliable TDK Quality: Manufactured by TDK, a leader in passive components, this capacitor benefits from stringent quality control and advanced manufacturing processes, ensuring consistent performance.
• Precision Capacitance: The 82pF capacitance with ±10% tolerance is well-suited for high-frequency filtering, resonant circuits, and impedance matching applications where stable, low capacitance is required.

Typical Applications

Despite its obsolete status, the C4520C0G3F820K200KA was designed for a range of demanding commercial applications due to its high voltage rating and stable characteristics:

High-Voltage Power Supplies: Its 3000V rating makes it suitable for filtering and decoupling in the high-voltage sections of power supplies used in industrial equipment, medical devices, and specialized test and measurement instruments. It helps in smoothing rectified DC voltage and suppressing transient spikes.

Resonant Circuits and Oscillators: The C0G dielectric’s excellent temperature stability and low loss tangent are crucial for maintaining frequency accuracy in resonant circuits and oscillators. This could include applications in RF communication systems, timing circuits, and signal generators where precise frequency control is essential.

Industrial Control Systems: In environments with significant electrical noise or voltage fluctuations, this capacitor could be used for noise suppression, signal coupling, or voltage stabilization in industrial automation, motor control, and sensor interface circuits, benefiting from its robust operating temperature range.

Medical Diagnostic Equipment: High-voltage components are often found in medical imaging devices (like X-ray machines or MRI scanners) and therapeutic equipment. The C4520C0G3F820K200KA could have been utilized in power conditioning or high-voltage signal paths where reliability and stability are paramount for patient safety and diagnostic accuracy.

Test and Measurement Instruments: Precision instruments often require components with stable characteristics across varying conditions. This capacitor’s C0G dielectric and high voltage rating would make it suitable for input conditioning, filtering, or calibration circuits in high-end oscilloscopes, spectrum analyzers, or voltage meters.

In summary, the C4520C0G3F820K200KA TDK Ceramic Capacitor (MLCC) is a high-performance, high-voltage component designed for commercial-grade applications requiring exceptional temperature stability and reliability. While now obsolete, its specifications highlight its suitability for demanding electronic designs. This component is stocked and shipped across India by Cirkit Electro Components, Mumbai.

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