CGA4J1X8R1E105M125AC CGA4J1X8R1E105M125AC Ceramic Capacitor (MLCC)

CGA4J1X8R1E105M125AC

Overview

CGA4J1X8R1E105M125AC is a high-performance multilayer ceramic capacitor (MLCC) manufactured by TDK, a global leader in electronic components. This specific MLCC is designed for demanding applications, particularly within the automotive sector, where reliability and performance under extreme conditions are paramount. As a passive component, its primary function is to store and release electrical energy, filter noise, and stabilize voltage in electronic circuits. Its robust construction and adherence to stringent automotive standards make it an ideal choice for critical systems requiring stable capacitance over a wide temperature range.

Key Specifications

Applications: Automotive Grade
This designation signifies that the capacitor is specifically engineered and tested to meet the rigorous demands of automotive electronics. Components with this rating are subjected to extensive qualification processes to ensure reliability and performance in harsh automotive environments, including wide temperature fluctuations, vibrations, and electrical transients.

Brand: TDK
TDK is a renowned Japanese multinational electronics company known for its high-quality electronic components. Their expertise in materials science and manufacturing processes ensures that products like the CGA4J1X8R1E105M125AC meet stringent performance and reliability standards.

Feature: AEC-Q200 150°C
The AEC-Q200 standard is a global stress test qualification for passive electronic components used in automotive applications. The ‘150°C’ indicates that this capacitor is qualified to operate and maintain its specified performance at temperatures up to 150 degrees Celsius, which is crucial for components located in engine compartments or other high-temperature zones within a vehicle.

AEC-Q200: YES
Explicitly stating ‘YES’ confirms that this component has successfully passed all the necessary tests and qualifications outlined by the Automotive Electronics Council’s AEC-Q200 standard, guaranteeing its suitability for automotive use.

Tolerance: ±20%
This value indicates the permissible deviation of the actual capacitance from its nominal value. A ±20% tolerance for a 1μF capacitor means its actual capacitance will fall between 0.8μF and 1.2μF. This level of tolerance is common for general-purpose and decoupling applications where precise capacitance is not as critical as stability and reliability.

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) package code is a standard size, indicating a length of 0.08 inches and a width of 0.05 inches, which translates to 2.0mm by 1.25mm. This compact size is ideal for space-constrained PCB designs.

Capacitance: 1μF
This is the nominal electrical capacitance of the component, meaning it can store 1 microfarad of electrical charge. This value is suitable for a wide range of applications, including power supply decoupling, filtering, and timing circuits.

T(Max.) / mm: 1.45
This indicates the maximum thickness of the component, which is 1.45 millimeters. This dimension is important for mechanical design considerations, ensuring proper fit within enclosures and clearance on printed circuit boards.

Temp. Chara.: X8R
X8R is a specific dielectric material classification according to EIA standards. It denotes a ceramic capacitor that can operate over a temperature range of -55°C to +150°C with a maximum capacitance change of ±15% over that range. This characteristic is particularly valuable in automotive and industrial applications where stable performance across extreme temperatures is essential.

Component Type: Ceramic Capacitor (MLCC)
This identifies the fundamental type of component. MLCCs are known for their small size, low equivalent series resistance (ESR), low equivalent series inductance (ESL), and excellent high-frequency characteristics, making them suitable for a broad spectrum of electronic circuits.

Product Status: Production
This indicates that the component is actively being manufactured and is readily available for purchase, 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. For the CGA4J1X8R1E105M125AC, a 25V rating provides ample headroom for typical 12V automotive systems and many other industrial applications.

Cap.Change or Temp.Coef.: ±15%
This reiterates and specifies the maximum change in capacitance over the operating temperature range for the X8R dielectric, confirming its stable performance from -55°C to +150°C.

Operating Temp. Range / °C: -55 to 150
This defines the full temperature range within which the capacitor is designed to operate reliably and meet its specified electrical characteristics. The wide range from -55°C to +150°C highlights its suitability for harsh environments.

Features and Benefits

• Automotive Grade Reliability: Fully qualified to AEC-Q200 standards, ensuring exceptional reliability and performance in demanding automotive environments, including under-the-hood applications.
• Extended High-Temperature Operation: With an X8R dielectric and an operating temperature range up to 150°C, this capacitor maintains stable capacitance and performance even in extreme thermal conditions.
• Compact 0805 Package: The industry-standard 0805 case size (2.0mm x 1.25mm) allows for space-efficient PCB layouts, crucial for modern miniaturized electronic modules.
• Stable Capacitance (±15%): The X8R temperature characteristic provides a stable 1μF capacitance with only ±15% variation across the entire -55°C to 150°C operating range, critical for consistent circuit performance.
• Trusted TDK Quality: Manufactured by TDK, a leader in passive components, guaranteeing high-quality materials, robust construction, and consistent electrical characteristics.

Typical Applications

• Automotive Engine Control Units (ECUs): Essential for filtering noise and stabilizing power lines in ECUs, where high temperatures and vibrations are common, ensuring reliable operation of critical engine functions.
• LED Lighting Systems (Automotive & Industrial): Used in power conditioning and filtering for automotive LED headlights, taillights, and interior lighting, as well as industrial high-power LED luminaires, where temperature stability is key.
• Industrial Power Supplies and Converters: Ideal for input/output filtering and decoupling in DC-DC converters and power supplies used in industrial automation, robotics, and heavy machinery, requiring robust components.
• Advanced Driver-Assistance Systems (ADAS): Integrated into ADAS modules for radar, camera, and sensor signal processing, providing stable power and noise reduction for critical safety features that operate under varying environmental conditions.
• Telematics and Infotainment Systems: Utilized in automotive infotainment and telematics units for filtering and decoupling, ensuring clear audio, stable data transmission, and reliable system operation in the vehicle cabin.

Summary

The CGA4J1X8R1E105M125AC TDK Ceramic Capacitor is a robust and reliable solution for a wide array of demanding electronic applications, particularly those within the automotive sector. Its AEC-Q200 qualification, X8R dielectric, and wide operating temperature range ensure stable and consistent performance in harsh environments. This high-quality 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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