CGA4J1X8R1E105K125AD CGA4J1X8R1E105K125AD Ceramic Capacitor (MLCC)

CGA4J1X8R1E105K125AD

Overview

CGA4J1X8R1E105K125AD is a high-performance, automotive-grade multilayer ceramic capacitor (MLCC) manufactured by TDK, a global leader in electronic components. This passive component is designed to store and release electrical energy, filter noise, and stabilize voltage in demanding automotive and industrial applications. Its robust construction and adherence to stringent quality standards make it an ideal choice for critical circuits requiring reliability under harsh environmental conditions. As a ceramic capacitor, it offers excellent frequency response, low equivalent series resistance (ESR), and compact size, making it indispensable in modern electronic designs.

Key Specifications

The CGA4J1X8R1E105K125AD boasts a set of specifications tailored for high-reliability applications:

• Apps. (Automotive Grade): This designation signifies that the capacitor is specifically designed and tested for use in automotive electronics, where components must withstand extreme temperatures, vibrations, and electrical stresses. It ensures compliance with industry-specific reliability standards.
• Brand (TDK): TDK is a renowned Japanese electronics company known for its high-quality passive components. Specifying TDK assures engineers of the component’s manufacturing excellence, consistent performance, and long-term reliability.
• Feature (AEC-Q200, 150°C, Glue): This capacitor is AEC-Q200 qualified, meaning it meets the Automotive Electronics Council’s rigorous stress test qualification for passive components. The 150°C rating indicates its capability to operate at elevated temperatures, crucial for under-the-hood automotive environments. The ‘Glue’ feature suggests it’s suitable for adhesive mounting, enhancing mechanical stability against vibration.
• AEC-Q200 (YES): Explicitly confirming AEC-Q200 qualification, this ensures the component has undergone and passed a comprehensive set of tests for reliability in automotive applications, including temperature cycling, humidity, and vibration.
• Tolerance (±10%): This indicates the permissible deviation of the actual capacitance value from its nominal value. A ±10% tolerance is standard for many general-purpose and automotive applications, providing a good balance between precision and cost-effectiveness.
• L x W Size (2.0mm x 1.25mm [EIA 0805]): This specifies the physical dimensions of the capacitor. The EIA 0805 package size is a common surface-mount technology (SMT) footprint, offering a compact solution for space-constrained PCBs while being relatively easy to handle during assembly.
• Capacitance (1μF): The nominal capacitance value of one microfarad. This value is suitable for various applications, including decoupling, filtering, and energy storage in power supply circuits, offering significant charge storage capacity in a small package.
• T(Max.) / mm (1.5): This refers to the maximum thickness of the component, which is 1.5mm. This dimension is critical for mechanical design and ensuring the component fits within specific height constraints on a PCB.
• Temp. Chara. (X8R): X8R is a specific dielectric material classification for ceramic capacitors. It indicates a capacitance change of ±15% over an operating temperature range of -55°C to +150°C, making it suitable for high-temperature applications where stable capacitance is required.
• Component Type (Ceramic Capacitor (MLCC)): This confirms it is a multilayer ceramic capacitor, known for its compact size, high-frequency performance, and reliability.
• Product Status (Production): This indicates that the component is actively being manufactured and is readily available for purchase and integration into new designs, ensuring long-term supply.
• Rated Voltage [DC] / V (25): The maximum DC voltage that can be continuously applied across the capacitor without causing damage. A 25V rating is common for various automotive and industrial control applications.
• Cap.Change or Temp.Coef. (±15%): This reiterates the capacitance change over the specified temperature range, directly linked to the X8R dielectric characteristic, highlighting its stability under varying thermal conditions.
• Operating Temp. Range / °C (-55 to 150): This defines the full temperature range over which the capacitor is designed to operate reliably, from extreme cold to very high temperatures, crucial for automotive and harsh industrial environments.

Features and Benefits

• Exceptional Temperature Stability: With an X8R dielectric and an operating temperature range of -55°C to 150°C, the CGA4J1X8R1E105K125AD maintains stable capacitance values even in extreme thermal conditions, ensuring reliable circuit performance in demanding environments.
• AEC-Q200 Qualified for Automotive Reliability: This capacitor meets the rigorous AEC-Q200 standard, making it highly suitable for critical automotive applications where components must withstand severe operational stresses, vibrations, and temperature fluctuations.
• Compact 0805 Package Size: The 2.0mm x 1.25mm (EIA 0805) footprint allows for high-density mounting on PCBs, contributing to miniaturization and space-saving in modern electronic designs without compromising performance.
• High Capacitance in a Small Form Factor: A 1μF capacitance in an 0805 package provides significant energy storage and filtering capabilities, enabling effective power supply decoupling and noise suppression in compact circuits.
• Robust Construction for Harsh Environments: Designed with a ‘Glue’ feature for enhanced mechanical stability and rated for high temperatures, this TDK MLCC offers superior durability and long-term reliability in applications exposed to vibration and elevated heat.

Typical Applications

• Automotive Engine Control Units (ECUs): The CGA4J1X8R1E105K125AD is ideal for filtering and decoupling in ECUs, where its high-temperature capability and AEC-Q200 qualification ensure reliable operation in the harsh under-the-hood environment, stabilizing power rails and suppressing electrical noise.
• LED Lighting Systems for Vehicles: In automotive LED lighting modules, this capacitor can be used for voltage regulation and ripple current filtering, contributing to stable light output and extended lifespan of the LED drivers, especially in high-temperature headlight or taillight assemblies.
• Industrial Control Systems: Its robust design and wide operating temperature range make it suitable for power supply filtering and signal conditioning in industrial automation equipment, sensors, and motor control circuits that operate in challenging factory environments.
• Advanced Driver-Assistance Systems (ADAS): For ADAS modules such as radar, lidar, and camera systems, the CGA4J1X8R1E105K125AD provides crucial decoupling for sensitive digital and analog circuits, ensuring stable power delivery and signal integrity for critical safety functions.
• Infotainment and Telematics Systems: Within vehicle infotainment and telematics units, this capacitor can be employed for power rail stabilization and noise reduction, enhancing the performance and reliability of communication modules, displays, and audio systems.

Summary

The CGA4J1X8R1E105K125AD from TDK is a top-tier automotive-grade ceramic capacitor, engineered for superior performance and reliability in the most demanding applications. Its robust specifications, including AEC-Q200 qualification, X8R dielectric, and wide operating temperature range, make it an indispensable component for critical electronic designs. This part is stocked and shipped across India by Cirkit Electro Components, Mumbai, ensuring prompt availability for your project needs.

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