C2012X8R1E684K125AC C2012X8R1E684K125AC Ceramic Capacitor (MLCC)

C2012X8R1E684K125AC

C2012X8R1E684K125AC is a high-performance multilayer ceramic capacitor (MLCC) manufactured by TDK, a global leader in electronic components. This passive component is specifically designed for commercial-grade applications requiring stable capacitance over a wide temperature range. As a ceramic capacitor, its primary function is to store and release electrical energy, filter noise, and stabilize voltage in electronic circuits. TDK’s expertise ensures this MLCC delivers exceptional reliability and performance, making it an ideal choice for demanding electronic designs.

Key Specifications

The attributes of the C2012X8R1E684K125AC are crucial for understanding its capabilities and suitability for various applications:

• Apps.: Commercial Grade – This designation indicates the capacitor is engineered for general electronic equipment, offering a balance of performance and cost-effectiveness for a broad spectrum of commercial products, unlike automotive or military-grade components which have more stringent requirements.
• Brand: TDK – TDK is a renowned Japanese multinational electronics company known for its high-quality passive components, magnetic products, and other electronic devices, ensuring reliability and adherence to industry standards.
• Feature: 150°C – This highlights its capability to operate at elevated temperatures, making it suitable for applications where heat generation is a concern or ambient temperatures are high, such as power supplies or automotive electronics (though this is commercial grade).
• Tolerance: ±10% – This specifies the permissible deviation of the actual capacitance value from its nominal value (680nF). A ±10% tolerance is common for general-purpose applications where precise capacitance is not overly critical but still requires reasonable accuracy.
• L x W Size: 2.0mm x 1.25mm [EIA 0805] – This denotes the physical dimensions of the surface-mount component. The 0805 EIA standard size is a widely adopted footprint, offering a good balance between miniaturization and ease of handling during assembly, making it suitable for compact designs without being excessively small.
• Capacitance: 680nF – This is the nominal capacitance value, indicating its ability to store 680 nanofarads of electrical charge. This value is suitable for various filtering, decoupling, and timing applications in electronic circuits.
• T(Max.) / mm: 1.45 – This refers to the maximum thickness of the component, which is important for mechanical design and ensuring it fits within specified height constraints on a PCB.
• Temp. Chara.: X8R – X8R is a specific dielectric material classification according to EIA standards. It signifies a temperature characteristic where the capacitance change is within ±15% over an operating temperature range of -55°C to +150°C. This makes it highly stable across a very wide temperature spectrum, superior to X7R or X5R for high-temperature environments.
• Component Type: Ceramic Capacitor (MLCC) – This identifies it as a multilayer ceramic capacitor, known for its small size, high frequency performance, and excellent reliability, making it a cornerstone component in modern electronics.
• Product Status: Production – This indicates that the component is actively being manufactured and is available for purchase in volume, ensuring long-term supply for product designs.
• Rated Voltage [DC] / V: 25 – This is the maximum DC voltage that can be continuously applied across the capacitor without risk of dielectric breakdown. Operating within this voltage limit is crucial for the longevity and reliability of the component.
• Cap.Change or Temp.Coef.: ±15% – This reiterates the capacitance change over the specified operating temperature range, directly correlating with the X8R dielectric characteristic, confirming its stable performance even at extreme temperatures.
• Operating Temp. Range / °C: -55 to 150 – This specifies the full range of ambient temperatures within which the capacitor is designed to operate reliably and meet its electrical specifications. The extended upper limit of 150°C is a key feature for demanding thermal environments.

Features and Benefits

• Exceptional Temperature Stability (X8R Dielectric): The C2012X8R1E684K125AC utilizes an X8R dielectric, guaranteeing a capacitance change of only ±15% across a broad operating temperature range from -55°C to +150°C. This ensures consistent circuit performance even in thermally challenging environments, reducing the need for temperature compensation.
• High Reliability from TDK: Manufactured by TDK, a leader in passive components, this MLCC benefits from stringent quality control and advanced manufacturing processes, resulting in a highly reliable component with a long operational lifespan, critical for industrial and commercial applications.
• Compact 0805 Package: With its 2.0mm x 1.25mm (EIA 0805) footprint, the capacitor offers a balance between miniaturization and ease of assembly. This compact size allows for higher component density on PCBs, contributing to smaller and lighter end products without compromising performance.
• Versatile Commercial Grade Application: Designed for commercial-grade use, this capacitor is suitable for a wide array of electronic devices, offering a cost-effective yet robust solution for general-purpose filtering, decoupling, and energy storage needs in various consumer and industrial electronics.
• High-Temperature Operation up to 150°C: The ability to operate reliably at temperatures up to 150°C makes this component ideal for applications exposed to significant heat, such as LED lighting drivers, power supply units, and certain automotive (non-critical) or industrial control systems where standard capacitors might fail.

Typical Applications

• Power Supply Units (PSUs): In power supplies, the C2012X8R1E684K125AC can be used for input and output filtering, decoupling ICs, and voltage stabilization. Its high-temperature capability is particularly beneficial in PSUs where heat generation is common, ensuring stable operation and ripple reduction.
• LED Lighting Drivers: Modern LED lighting systems often operate at elevated temperatures. This capacitor’s 150°C rating and stable X8R dielectric make it an excellent choice for filtering and smoothing circuits within LED drivers, contributing to the longevity and consistent performance of lighting fixtures.
• Industrial Control Systems: In industrial environments, electronic equipment can be exposed to wide temperature fluctuations. This MLCC is suitable for use in sensors, programmable logic controllers (PLCs), and motor control circuits, providing reliable signal integrity and power filtering under harsh conditions.
• Telecommunications Equipment: For base stations, routers, and other communication infrastructure, stable power delivery and noise suppression are paramount. The C2012X8R1E684K125AC can be employed in various filtering and decoupling roles, ensuring clean power rails for sensitive RF and digital circuitry.
• Consumer Electronics (High-Performance): While commercial grade, its robust specifications make it suitable for high-performance consumer devices that generate heat, such as high-end gaming consoles, smart home hubs, or multimedia systems, where reliable operation over time is crucial.

The C2012X8R1E684K125AC from TDK is a robust and reliable ceramic capacitor, perfectly suited for demanding commercial applications requiring stable performance across a wide temperature range. This component is stocked and shipped across India by Cirkit Electro Components, Mumbai, ensuring prompt delivery for your project needs.

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