CGA4J1X8R1E105M125AD CGA4J1X8R1E105M125AD Ceramic Capacitor (MLCC)

CGA4J1X8R1E105M125AD

Overview

CGA4J1X8R1E105M125AD is a high-performance ceramic capacitor, specifically a Multilayer Ceramic Capacitor (MLCC), manufactured by TDK, a global leader in electronic components. This particular component is engineered for demanding applications, primarily within the automotive sector, where reliability and stability under harsh conditions are paramount. As a passive component, its fundamental function is to store and release electrical energy, playing a critical role in filtering, bypassing, coupling, and timing circuits. Its robust design and adherence to stringent automotive standards make it an ideal choice for critical electronic systems.

Key Specifications

• Applications: Automotive Grade – This designation signifies that the capacitor is specifically designed and tested to meet the rigorous demands of automotive electronics, including extreme temperatures, vibrations, and electrical transients, ensuring long-term reliability in vehicles.
• Brand: TDK – TDK is a renowned Japanese multinational electronics company known for its high-quality passive components, magnetic products, and advanced electronic devices. Their brand signifies innovation, reliability, and adherence to global manufacturing standards.
• Feature: AEC-Q200 150°C Glue – This feature highlights two critical aspects: AEC-Q200 certification, which is the automotive industry standard for passive electronic components, guaranteeing reliability and quality; and the ability to operate at 150°C, indicating exceptional thermal resilience, further enhanced by the use of specialized glue for robust mounting.
• AEC-Q200: YES – Confirmation of AEC-Q200 qualification means this capacitor has undergone extensive stress testing to ensure its suitability and reliability for use in automotive environments, where component failure can have severe consequences.
• Tolerance: ±20% – This specifies the permissible deviation of the actual capacitance value from its nominal value (1μF). A ±20% tolerance is common for general-purpose and decoupling applications where precise capacitance is not as critical as stability and cost-effectiveness.
• L x W Size: 2.0mm x 1.25mm [EIA 0805] – This indicates the physical dimensions of the capacitor. The 0805 package size, according to the Electronic Industries Alliance (EIA) standard, is a widely adopted surface-mount technology (SMT) footprint, offering a balance between miniaturization and ease of handling during assembly.
• Capacitance: 1μF – This is the nominal electrical charge-storing capacity of the capacitor. A 1μF capacitance is suitable for a wide range of applications, including power supply decoupling, filtering low-frequency noise, and energy storage in various circuits.
• T(Max.) / mm: 1.5 – This refers to the maximum thickness of the component, which is 1.5 millimeters. This dimension is crucial for mechanical design and ensuring proper fit within compact electronic assemblies, especially in space-constrained automotive modules.
• Temp. Chara.: X8R – X8R is a specific dielectric material classification according to EIA standards. It denotes a ceramic capacitor capable of operating over a wide temperature range of -55°C to +150°C with a capacitance change of no more than ±15%, making it highly stable across extreme thermal variations.
• Component Type: Ceramic Capacitor (MLCC) – This identifies the capacitor as an MLCC, which utilizes multiple layers of ceramic dielectric and metal electrodes to achieve high capacitance values in a small form factor, offering excellent frequency response and reliability.
• Product Status: Production – This indicates that the component is actively being manufactured and is readily available for mass production, ensuring long-term supply and support for new and existing designs.
• Rated Voltage [DC] / V: 25 – This is the maximum DC voltage that can be continuously applied across the capacitor without causing damage or degradation. A 25V rating is suitable for many automotive low-voltage power rails and signal conditioning applications.
• Cap.Change or Temp.Coef.: ±15% – This reiterates the capacitance change over the specified operating temperature range for the X8R dielectric, confirming its excellent stability and predictability under varying thermal conditions.
• Operating Temp. Range / °C: -55 to 150 – This wide operating temperature range is a critical specification for automotive components, allowing the capacitor to function reliably in environments from extreme cold starts to high-temperature engine compartments.

Features and Benefits

• Exceptional Thermal Stability: With an X8R temperature characteristic and an operating range of -55°C to 150°C, this capacitor maintains its capacitance reliably across a broad spectrum of temperatures, crucial for automotive systems exposed to varying environmental conditions.
• AEC-Q200 Qualified: The rigorous AEC-Q200 certification ensures that the CGA4J1X8R1E105M125AD meets the highest standards of reliability and quality required for automotive applications, minimizing the risk of field failures.
• Compact 0805 Package: The small 2.0mm x 1.25mm footprint allows for high-density circuit board designs, enabling more compact and lightweight electronic modules, which is a significant advantage in modern vehicle design.
• High Reliability with TDK Quality: Manufactured by TDK, a leader in passive components, this MLCC benefits from advanced manufacturing processes and stringent quality control, ensuring consistent performance and a long operational lifespan.
• Robust Construction for Harsh Environments: Designed with features like 150°C glue, the capacitor offers enhanced mechanical and thermal robustness, making it resistant to vibrations and thermal cycling commonly encountered in automotive settings.

Typical Applications

• Automotive Engine Control Units (ECUs): Used for power supply decoupling and filtering noise on critical sensor and microcontroller lines, ensuring stable operation of engine management systems under varying loads and temperatures.
• Automotive Infotainment Systems: Employed in audio amplifiers, display drivers, and communication modules for signal coupling, bypassing, and filtering, contributing to clear audio and reliable data transmission within the vehicle’s cabin.
• Advanced Driver-Assistance Systems (ADAS): Integrated into radar, camera, and lidar modules for power conditioning and noise suppression, ensuring the accurate and reliable operation of safety-critical features like adaptive cruise control and lane-keeping assist.
• LED Lighting Modules: Utilized in automotive LED headlamps, taillamps, and interior lighting for smoothing power delivery and filtering switching noise, contributing to flicker-free illumination and extended LED lifespan.
• Electric Vehicle (EV) Battery Management Systems (BMS): Essential for filtering noise on voltage and current sensing lines, as well as decoupling power to microcontrollers, ensuring precise battery monitoring and safe operation of high-voltage systems.

Summary

The CGA4J1X8R1E105M125AD is a robust and reliable automotive-grade ceramic capacitor from TDK, designed to meet the demanding requirements of modern vehicle electronics. Its excellent thermal stability, AEC-Q200 qualification, and compact form factor make it an ideal choice for critical applications. This component is stocked and shipped across India by Cirkit Electro Components, Mumbai, ensuring prompt availability for your design and production needs.

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