C2012X8R1C105K125AB C2012X8R1C105K125AB Ceramic Capacitor (MLCC)

C2012X8R1C105K125AB

Overview

C2012X8R1C105K125AB is a high-performance Multilayer Ceramic Capacitor (MLCC) manufactured by TDK, a global leader in electronic components. This passive component is designed for commercial-grade applications requiring stable capacitance over a wide temperature range, particularly in environments up to 150°C. As a ceramic capacitor, its primary function is to store and release electrical energy, filter noise, and stabilize voltage in electronic circuits. TDK’s commitment to quality ensures this MLCC delivers reliable performance in demanding conditions.

Key Specifications

• Apps. (Commercial Grade): This designation indicates that the capacitor is suitable for a broad range of general electronic applications, offering a balance of performance and cost-effectiveness. It is designed to meet the rigorous demands of commercial products, ensuring reliability in typical operating environments.
• Brand (TDK): TDK is a renowned Japanese multinational electronics company known for its high-quality electronic components, including capacitors, inductors, and magnetic products. Choosing a TDK component assures engineers of robust design, superior manufacturing, and consistent performance.
• Feature (150°C): This is a critical attribute highlighting the capacitor’s ability to operate reliably at elevated temperatures up to 150°C. This makes it ideal for applications in harsh thermal environments where standard capacitors would fail.
• Tolerance (±10%): The capacitance tolerance specifies the permissible deviation from the nominal capacitance value. A ±10% tolerance is common for general-purpose capacitors, indicating a reasonable degree of precision suitable for most commercial circuits.
• L x W Size (2.0mm x 1.25mm [EIA 0805]): This refers to the physical dimensions of the surface-mount device (SMD) capacitor. The 0805 EIA standard size is widely adopted, making it compatible with standard PCB footprints and automated assembly processes, balancing miniaturization with ease of handling.
• Capacitance (1μF): The nominal capacitance value of 1 microfarad (µF) is a common and versatile value, suitable for various decoupling, filtering, and timing applications in electronic circuits.
• T(Max.) / mm (1.45): This indicates the maximum thickness of the component, which is 1.45mm. This dimension is crucial for PCB layout and ensuring adequate clearance in compact designs.
• Temp. Chara. (X8R): The X8R temperature characteristic defines the capacitor’s performance over its operating temperature range. X8R capacitors exhibit a capacitance change of no more than ±15% from -55°C to +150°C, making them highly stable for high-temperature applications.
• Component Type (Ceramic Capacitor (MLCC)): This specifies that it is a Multilayer Ceramic Capacitor, known for its small size, high frequency response, and excellent reliability due to its ceramic dielectric material and multilayer construction.
• Product Status (Production): This indicates that the component is actively being manufactured and is readily available for new designs and mass production, ensuring long-term supply stability.
• Rated Voltage [DC] / V (16): The rated DC voltage of 16V is the maximum continuous DC voltage that can be applied across the capacitor without risk of breakdown. It is important to select a capacitor with a rated voltage significantly higher than the maximum expected circuit voltage.
• Cap.Change or Temp.Coef. (±15%): This reiterates the capacitance change over the specified temperature range, confirming the X8R characteristic’s stability. It means the capacitance will remain within ±15% of its nominal value from -55°C to 150°C.
• Operating Temp. Range / °C (-55 to 150): This specifies the full range of ambient temperatures over which the capacitor is designed to operate reliably, from extreme cold to very high heat, underscoring its robustness for demanding environments.

Features and Benefits

• Extended High-Temperature Operation: With an operating temperature range up to 150°C and an X8R temperature characteristic, the C2012X8R1C105K125AB offers exceptional stability and reliability in high-heat environments, outperforming standard ceramic capacitors.
• Compact 0805 EIA Size: The industry-standard 0805 footprint (2.0mm x 1.25mm) allows for efficient use of PCB space, facilitating miniaturization in electronic designs while remaining manageable for automated assembly.
• Reliable TDK Quality: Manufactured by TDK, a leader in electronic components, this MLCC guarantees high quality, consistent performance, and long-term reliability, reducing the risk of component failure in critical applications.
• Versatile 1µF Capacitance: The 1µF capacitance value, combined with a 16V rated voltage and ±10% tolerance, makes this component highly versatile for a wide array of filtering, decoupling, and energy storage tasks in various commercial-grade circuits.
• Stable Capacitance (X8R): The X8R dielectric ensures that the capacitance value remains highly stable across the entire wide operating temperature range (-55°C to 150°C), minimizing performance drift and enhancing circuit predictability.

Typical Applications

• Automotive Electronics: Given its 150°C operating temperature and robust X8R characteristics, this capacitor is ideal for use in under-the-hood automotive applications such as engine control units (ECUs), transmission control units (TCUs), and sensor modules, where high temperatures are common.
• Industrial Control Systems: In industrial environments, equipment often operates in conditions with elevated temperatures. The C2012X8R1C105K125AB can be used in power supplies, motor drives, and sensor interfaces for industrial automation, ensuring stable operation and longevity.
• Power Supplies and DC-DC Converters: Its 1µF capacitance and 16V rating make it suitable for input/output filtering and decoupling in various power conversion circuits, including switch-mode power supplies (SMPS) and DC-DC converters, especially those operating in thermally challenging enclosures.
• LED Lighting Systems: High-power LED drivers and lighting fixtures can generate significant heat. This TDK MLCC can be integrated into the control circuitry of LED drivers for filtering and smoothing, contributing to the overall reliability and lifespan of the lighting system.
• High-Temperature Sensor Interfaces: For applications involving sensors located near heat sources, such as exhaust gas sensors or industrial process monitoring, this capacitor provides stable performance for signal conditioning and data acquisition circuits.

Summary

The C2012X8R1C105K125AB from TDK is a robust and reliable ceramic capacitor engineered for demanding commercial-grade applications requiring stable performance at high temperatures up to 150°C. Its 1µF capacitance, 16V rating, and X8R dielectric make it an excellent choice for automotive, industrial, and power management systems. This high-quality component is stocked and shipped across India by Cirkit Electro Components, Mumbai.

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