CGJ4J2X7R1A475K125AA CGJ4J2X7R1A475K125AA Ceramic Capacitor (MLCC)

CGJ4J2X7R1A475K125AA

Overview

CGJ4J2X7R1A475K125AA is a high-reliability grade 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 various electronic circuits. Its specific characteristics make it suitable for demanding applications where stability and performance are critical. As an MLCC, it offers a compact form factor and excellent electrical properties, making it a cornerstone in modern electronics design.

Key Specifications

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

• Applications: High Reliability Grade – This designation indicates that the capacitor is engineered for environments and systems where failure is not an option, such as automotive, industrial control, and medical devices. It implies rigorous testing and adherence to stringent quality standards.
• Brand: TDK – TDK is a renowned Japanese multinational electronics company known for its high-quality electronic components, including capacitors, inductors, and magnetic products. Their brand signifies reliability and innovation in the electronics industry.
• Feature: AEC-Q200 General – The AEC-Q200 standard is a global stress test qualification for passive electronic components used in automotive applications. “General” implies it meets the baseline requirements for automotive-grade components, ensuring robustness in harsh automotive environments.
• AEC-Q200: YES – Explicitly confirming its AEC-Q200 qualification, this capacitor is certified for use in automotive electronics, which demand high reliability, extended temperature ranges, and resistance to vibration and shock.
• Tolerance: ±10% – This specifies the permissible deviation of the actual capacitance value from its nominal value. A ±10% tolerance is common for general-purpose and many high-reliability applications, indicating a reasonable degree of precision.
• L x W Size: 2.0mm x 1.25mm [EIA 0805] – This describes the physical dimensions of the component. The 0805 EIA (Electronic Industries Alliance) standard size is a widely adopted surface-mount technology (SMT) package, indicating a compact footprint suitable for miniaturized electronic assemblies.
• Capacitance: 4.7μF – The nominal capacitance value of 4.7 microfarads. This relatively high capacitance for an MLCC in this size makes it suitable for power supply decoupling, filtering, and energy storage applications where significant charge storage is required.
• T(Max.) / mm: 1.45 – This refers to the maximum thickness of the component, which is 1.45mm. This dimension is crucial for mechanical design and ensuring proper fit within constrained spaces on a printed circuit board (PCB).
• Temp. Chara.: X7R – X7R is a common temperature characteristic for ceramic capacitors. It indicates a capacitance change of ±15% over an operating temperature range of -55°C to +125°C. This makes it suitable for a wide range of industrial and automotive applications where temperature stability is important but not ultra-critical.
• Component Type: Ceramic Capacitor (MLCC) – This confirms it is a Multi-Layer Ceramic Capacitor, known for its small size, high frequency performance, and excellent reliability.
• Product Status: Obsolete – This status indicates that the manufacturer no longer produces this specific part. While still available through distributors with existing stock, it is advisable for new designs to consider alternative, currently active components.
• Rated Voltage [DC] / V: 10 – This is the maximum DC voltage that can be continuously applied across the capacitor without causing damage. A 10V rating is suitable for low-voltage digital and analog circuits.
• Cap.Change or Temp.Coef.: ±15% – This reiterates the capacitance change over the operating temperature range, consistent with the X7R dielectric characteristic.
• Operating Temp. Range / °C: -55 to 125 – This wide operating temperature range signifies the capacitor’s ability to perform reliably in extreme hot and cold conditions, making it ideal for robust industrial and automotive applications.

Features and Benefits

• AEC-Q200 Qualified: Ensures robust performance and reliability in demanding automotive environments, making it suitable for critical vehicle electronics.
• High Reliability Grade: Designed and tested to meet stringent quality standards, offering enhanced durability and long-term stability in critical applications.
• Wide Operating Temperature Range: Capable of functioning effectively from -55°C to +125°C, allowing for use in diverse and harsh environmental conditions.
• Compact 0805 Package: The small surface-mount footprint (2.0mm x 1.25mm) enables miniaturization of electronic designs and efficient use of PCB space.
• X7R Dielectric: Provides stable capacitance over a broad temperature range, crucial for applications requiring consistent performance despite temperature fluctuations.
• TDK Quality: Backed by the reputation of TDK, a leading manufacturer known for its high-quality and reliable electronic components.

Typical Applications

The CGJ4J2X7R1A475K125AA ceramic capacitor, with its high reliability and automotive qualification, finds use in a variety of demanding applications:

• Automotive Electronics: Essential for engine control units (ECUs), infotainment systems, advanced driver-assistance systems (ADAS), and body electronics, where its AEC-Q200 qualification ensures performance under harsh conditions.
• Industrial Control Systems: Used in PLCs (Programmable Logic Controllers), motor drives, and sensor interfaces, providing stable power filtering and signal coupling in factory automation environments.
• Power Supply Decoupling: Critical for filtering noise and stabilizing voltage rails in DC-DC converters and power management units, ensuring clean power delivery to sensitive ICs.
• Medical Devices: Integrated into diagnostic equipment, patient monitoring systems, and portable medical devices where high reliability and stable performance are paramount for patient safety and accurate readings.
• Telecommunications Infrastructure: Employed in base stations, network equipment, and data centers for signal conditioning, impedance matching, and power supply filtering, contributing to reliable communication networks.

Summary

The CGJ4J2X7R1A475K125AA from TDK is a high-reliability, AEC-Q200 qualified ceramic capacitor, offering a 4.7µF capacitance at 10V in a compact 0805 package. Its X7R dielectric ensures stable performance across a wide -55°C to +125°C operating temperature range, making it ideal for demanding automotive, industrial, and medical applications. Although the product status is obsolete, existing stock continues to serve critical repair and maintenance needs. This component is stocked and shipped across India by Cirkit Electro Components, Mumbai, ensuring prompt delivery for your project requirements.

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