CGA4J3X7R1C155K125AB CGA4J3X7R1C155K125AB Ceramic Capacitor (MLCC)

CGA4J3X7R1C155K125AB

Overview

The CGA4J3X7R1C155K125AB is a high-performance multilayer ceramic capacitor (MLCC) manufactured by TDK, a global leader in electronic components. This passive component is specifically designed for demanding automotive applications, offering exceptional reliability and stability. As a ceramic capacitor, its primary function is to store and release electrical energy, filter noise, and stabilize voltage in electronic circuits. The MLCC construction allows for high capacitance values in a compact form factor, making it ideal for space-constrained designs. TDK’s commitment to quality ensures that this component meets stringent industry standards, providing robust performance in critical systems.

Key Specifications

• Apps.: Automotive Grade

  This attribute signifies that the capacitor is specifically engineered and tested to meet the rigorous demands of automotive electronics. Components designated as ‘Automotive Grade’ must withstand harsh environmental conditions, including extreme temperatures, vibrations, and electrical stresses, ensuring reliable operation in vehicles.

• Brand: TDK

  TDK is a renowned Japanese multinational electronics company known for its high-quality electronic components and materials. Their brand signifies reliability, innovation, and adherence to strict manufacturing standards, making them a trusted choice for critical applications.

• Feature: AEC-Q200General

  This indicates compliance with AEC-Q200, a global standard for stress test qualification for passive components used in automotive applications. ‘General’ implies it meets the broad requirements of this standard, ensuring suitability for a wide range of automotive electronic systems.

• AEC-Q200: YES

  Explicitly confirms that the component has successfully passed the AEC-Q200 qualification tests. This certification is crucial for designers specifying parts for automotive systems, guaranteeing the component’s robustness and longevity under typical automotive operating conditions.

• Tolerance: ±10%

  This specifies the permissible deviation of the actual capacitance value from its nominal value. A ±10% tolerance is common for X7R dielectric capacitors, indicating a reasonable level of precision suitable for many filtering, coupling, and bypass applications where exact capacitance is not hyper-critical but stability is important.

• L x W Size: 2.0mm x 1.25mm [EIA 0805]

  This defines the physical dimensions of the capacitor. The 2.0mm x 1.25mm size corresponds to the industry-standard EIA 0805 package code, which is a very common surface-mount technology (SMT) footprint. This compact size is beneficial for miniaturization and high-density circuit board designs, particularly in automotive modules where space is often at a premium.

• Capacitance: 1.5μF

  This is the nominal electrical capacitance of the component, measured in microfarads (μF). A capacitance of 1.5μF is a relatively high value for an MLCC of this size, making it suitable for applications requiring significant energy storage, effective ripple filtering, or robust decoupling in power supply lines.

• T(Max.) / mm: 1.45

  This indicates the maximum thickness of the component, 1.45 millimeters. This dimension is critical for mechanical design and ensuring the component fits within specific height constraints on a printed circuit board (PCB), especially in thin or compact electronic modules.

• Temp. Chara.: X7R

  X7R is a common dielectric material classification for ceramic capacitors, known for its stable performance across a wide temperature range. X7R capacitors are considered ‘temperature stable’ and are suitable for bypass, decoupling, and filtering applications where capacitance changes with temperature are acceptable within defined limits.

• Component Type: Ceramic Capacitor (MLCC)

  Confirms that this is a multilayer ceramic capacitor, a widely used type of capacitor due to its small size, high capacitance density, and excellent high-frequency characteristics.

• Product Status: Production

  Indicates that the component is actively being manufactured and is readily available for purchase and integration into new designs, ensuring long-term supply and support.

• Rated Voltage [DC] / V: 16

  This is the maximum continuous DC voltage that can be applied across the capacitor without causing damage or premature failure. A 16V rating is common for automotive 12V systems, providing a sufficient safety margin for voltage fluctuations.

• Cap.Change or Temp.Coef.: ±15%

  For X7R dielectric, this specifies that the capacitance will not vary by more than ±15% from its nominal value over the full operating temperature range (-55°C to 125°C). This characteristic is important for applications where predictable performance across temperature variations is required.

• Operating Temp. Range / °C: -55 to 125

  This defines the extreme temperatures within which the capacitor is designed to operate reliably. A range from -55°C to 125°C is typical for automotive-grade components, reflecting the demanding thermal environments found in vehicles, from cold starts to under-hood operation.

Features and Benefits

• Automotive Grade Reliability: Designed and qualified to AEC-Q200 standards, ensuring exceptional robustness and long-term reliability in harsh automotive environments, including extreme temperatures, vibrations, and humidity.
• Stable Performance with X7R Dielectric: The X7R temperature characteristic provides stable capacitance over a wide operating temperature range (-55°C to 125°C) with a maximum capacitance change of ±15%, making it suitable for critical filtering and decoupling applications where consistent performance is essential.
• Compact 0805 Package: With dimensions of 2.0mm x 1.25mm, this MLCC offers a high capacitance of 1.5μF in a small, surface-mount 0805 footprint, enabling high-density PCB designs and miniaturization of electronic modules in modern vehicles.
• High Capacitance for Effective Filtering: The 1.5μF capacitance value, combined with a 16V rated voltage, provides significant energy storage and effective ripple reduction, crucial for stable power supply lines and noise suppression in automotive electronic control units (ECUs).
• Trusted TDK Quality: Manufactured by TDK, a leading global electronics component supplier, guaranteeing superior quality, consistent performance, and adherence to stringent manufacturing processes.

Typical Applications

• Automotive Engine Control Units (ECUs): The CGA4J3X7R1C155K125AB is ideal for power supply decoupling and filtering in engine control units, where stable voltage rails are critical for precise engine management, fuel injection, and emission control systems operating under extreme temperatures.
• Infotainment and Advanced Driver-Assistance Systems (ADAS): This capacitor can be used in ADAS modules for radar, camera, and sensor systems, as well as in automotive infotainment systems, providing stable power and noise suppression for reliable data processing and multimedia functionality.
• Electric Vehicle (EV) Battery Management Systems (BMS): In EV BMS, the capacitor can support voltage stabilization and noise filtering for sensor interfaces and communication lines, ensuring accurate battery monitoring and efficient power distribution.
• Automotive Lighting Systems: Suitable for LED driver circuits and other lighting control modules in vehicles, where it helps in smoothing power delivery and filtering out electrical noise to ensure consistent and flicker-free illumination.
• Body Electronics and Chassis Control: Used in various body electronics applications such as power window controls, central locking systems, and chassis control modules like ABS/ESP, providing essential decoupling and filtering to ensure reliable operation of microcontrollers and other integrated circuits.

Summary

The CGA4J3X7R1C155K125AB from TDK is a robust, automotive-grade MLCC designed for critical applications requiring high reliability and stable performance across a wide temperature range. Its 1.5μF capacitance in a compact 0805 package, coupled with AEC-Q200 qualification, makes it an excellent choice for demanding automotive and industrial electronics. This component is stocked and shipped across India by Cirkit Electro Components, Mumbai, ensuring prompt availability for your projects.

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