CGA4J3X7R1E155M125AB CGA4J3X7R1E155M125AB Ceramic Capacitor (MLCC)

CGA4J3X7R1E155M125AB

CGA4J3X7R1E155M125AB is a high-performance multilayer ceramic capacitor (MLCC) manufactured by TDK, a global leader in electronic components. This specific model is designed for demanding automotive applications, offering exceptional reliability and stability. As a passive component, its primary function is to store and release electrical energy, filter noise, and stabilize voltage in electronic circuits. The CGA4J3X7R1E155M125AB belongs to the ceramic capacitor category, known for its compact size, high frequency response, and robust performance in various environmental conditions. Its automotive-grade qualification ensures it meets stringent industry standards for safety and operational integrity.

Key Specifications

• Apps. (Automotive Grade): This designation signifies that the capacitor is specifically designed and tested to meet the rigorous demands of automotive electronics. Components used in vehicles must withstand extreme temperatures, vibrations, and electrical stresses, making automotive-grade parts crucial for reliability and safety in critical systems like engine control units, infotainment, and advanced driver-assistance systems (ADAS).
• Brand (TDK): TDK is a renowned Japanese multinational electronics company known for its high-quality passive components, including capacitors, inductors, and ferrites. Their brand presence assures engineers of reliable performance and adherence to international manufacturing standards.
• Feature (AEC-Q200General): AEC-Q200 is a global standard for stress test qualification for passive components used in automotive applications. The “General” aspect indicates it meets the broad requirements for passive components in this sector, ensuring the part’s robustness and longevity under typical automotive operating conditions.
• AEC-Q200 (YES): Explicitly stating “YES” confirms that this capacitor has successfully passed all the necessary tests and qualifications outlined by the Automotive Electronics Council’s AEC-Q200 standard, making it suitable for use in automotive environments.
• Tolerance (±20%): This indicates the permissible deviation of the actual capacitance value from its nominal value. A ±20% tolerance for a 1.5μF capacitor means its actual capacitance will fall between 1.2μF and 1.8μF. This level of tolerance is common for X7R dielectric materials and is acceptable for many decoupling and filtering applications where precise capacitance is not critical.
• L x W Size (2.0mm x 1.25mm [EIA 0805]): This specifies the physical dimensions of the surface-mount device (SMD) capacitor. The 0805 EIA (Electronic Industries Alliance) standard package size is widely used, offering a balance between compactness and ease of handling during automated assembly processes. Its small footprint is ideal for space-constrained PCBs.
• Capacitance (1.5μF): This is the nominal electrical charge storage capacity of the capacitor. A capacitance of 1.5 microfarads (μF) makes this component suitable for various applications, including power supply filtering, decoupling, and energy storage in medium-frequency circuits.
• T(Max.) / mm (1.45): This refers to the maximum thickness of the component, which is 1.45mm. This dimension is important for mechanical design considerations, ensuring adequate clearance and proper fit within an enclosure or on a PCB, especially in compact designs.
• Temp. Chara. (X7R): X7R is a common dielectric material used in ceramic capacitors, known for its stable performance across a wide temperature range. It is considered a “temperature stable” dielectric, making it suitable for applications where capacitance variations due to temperature changes need to be minimized.
• Component Type (Ceramic Capacitor (MLCC)): This confirms the fundamental type of the component. MLCCs are constructed from multiple layers of ceramic dielectric and metal electrodes, offering high capacitance in a small volume, excellent high-frequency characteristics, and high 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 and support.
• Rated Voltage [DC] / V (25): This is the maximum DC voltage that can be continuously applied across the capacitor without causing damage or premature failure. A 25V rating is suitable for many low-voltage power rails and signal processing applications in automotive and industrial electronics.
• Cap.Change or Temp.Coef. (±15%): For X7R dielectrics, this specifies that the capacitance will not vary by more than ±15% over its full operating temperature range (-55°C to 125°C). This stability is crucial for maintaining circuit performance in environments with fluctuating temperatures.
• Operating Temp. Range / °C (-55 to 125): This defines the ambient temperature range within which the capacitor is designed to operate reliably and meet its specified performance characteristics. The wide range from -55°C to 125°C is typical for automotive-grade components, allowing them to function in extreme cold and hot conditions found in vehicle interiors and under-hood applications.

Features and Benefits

• Automotive Grade (AEC-Q200 Qualified): The CGA4J3X7R1E155M125AB is rigorously tested to AEC-Q200 standards, ensuring superior reliability and performance in harsh automotive environments, including resistance to vibration, thermal shock, and humidity. This qualification is critical for safety-related and mission-critical systems in vehicles.
• Stable X7R Dielectric: Utilizing an X7R dielectric, this capacitor offers excellent capacitance stability across a broad operating temperature range (-55°C to 125°C), with only a ±15% change in capacitance. This ensures consistent circuit performance even under varying thermal conditions.
• Compact 0805 Package: The industry-standard 0805 (2.0mm x 1.25mm) surface-mount package allows for high-density board designs, saving valuable PCB space and facilitating automated assembly processes, leading to reduced manufacturing costs and smaller end products.
• High Capacitance in Small Size: With a capacitance of 1.5μF in a compact 0805 footprint, this MLCC provides effective decoupling and filtering capabilities, contributing to stable power delivery and reduced noise in electronic circuits without requiring larger, bulkier components.
• TDK Quality and Reliability: Manufactured by TDK, a leader in passive components, this capacitor benefits from stringent quality control and advanced manufacturing processes, guaranteeing a robust and long-lasting component for demanding applications.

Typical Applications

• Automotive Engine Control Units (ECUs): The CGA4J3X7R1E155M125AB is ideal for use in ECUs for filtering power lines, decoupling ICs, and stabilizing voltage rails. Its automotive-grade qualification ensures it can withstand the extreme temperatures and vibrations present in the engine compartment, contributing to reliable engine performance and emissions control.
• Infotainment and Navigation Systems: In modern vehicle infotainment systems, these capacitors can be used for power supply filtering, audio signal coupling/decoupling, and noise suppression. Their stable performance across temperature variations ensures clear audio and reliable operation of navigation and communication modules.
• Advanced Driver-Assistance Systems (ADAS): Critical ADAS modules, such as those for adaptive cruise control, lane keeping assist, and parking assist, rely on stable power and signal integrity. This TDK capacitor can be employed for local decoupling of microcontrollers and sensors, ensuring the precise and reliable operation of these safety-critical systems.
• LED Lighting Modules (Automotive): For automotive LED lighting applications, including headlights, taillights, and interior lighting, the CGA4J3X7R1E155M125AB can be used for smoothing rectified DC voltage and filtering switching noise from LED drivers, contributing to flicker-free and reliable illumination.
• Industrial Control Systems: Beyond automotive, its robust design and wide operating temperature range make it suitable for industrial control systems, factory automation, and power management modules where components are exposed to harsh environments and require high reliability.

The CGA4J3X7R1E155M125AB from TDK is a highly reliable and versatile automotive-grade ceramic capacitor, perfectly suited for a wide array of demanding electronic applications. This component is stocked and shipped across India by Cirkit Electro Components, Mumbai, ensuring prompt delivery for your project needs.

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