Product Details:
TQW19: Conductive Tantalum Capacitors that Inject Stable Power into High-Density, High-Reliability Electronic Systems
Modern electronic devices, from ultra-thin PD fast-charging plugs to highly integrated robot control motherboards, calculate internal space with millimeter-level precision. Traditional electrolytic capacitors often hinder engineers' layout due to their bulky size. The TQW19, with its slim 7.3mm x 6.0mm x 4.2mm profile, completely breaks this limitation.
This compact bottom electrode design not only significantly saves valuable PCB space, allowing for more complex functional circuit designs, but also achieves excellent low-profile characteristics, making it ideal for applications in space-constrained portable devices and modular products. However, the TQW19's small size does not come at the expense of performance; on the contrary, it maximizes energy storage and filtering performance within a minimal space. Its nominal capacitance of 100μF (35V) is outstanding among capacitors of similar size, providing instantaneous and sufficient energy replenishment for chips.
The core value of the TQW19 lies in its superior electrical characteristics, which directly determine the performance and stability of end products.
In switching power supply circuits and digital chip power supply networks, ripple current is unavoidable. Excessive ESR can cause capacitors to overheat, reduce efficiency, and in severe cases, even lead to thermal runaway. The TQW19 uses advanced conductive polymers as its cathode material, achieving an extremely low ESR value. This characteristic brings two core advantages:
• High-efficiency filtering: Low ESR means the capacitor exhibits lower impedance to high-frequency noise, more effectively filtering high-frequency noise on the power line. This provides extremely clean and stable voltage for core chips such as CPUs, GPUs, and ASICs, significantly reducing system error rates and downtime risks. This is crucial for high-speed AI data servers and communication base station equipment.
• High Reliability: Low ESR directly reduces the internal power loss (I²R) of capacitors when carrying large ripple currents, thereby reducing temperature rise. Combined with its rated ripple current withstand capability of up to 2000mA, the TQW19 maintains low temperature and high efficiency even under harsh load fluctuations, significantly improving the reliability and lifespan of the entire power system.
Electronic devices operate in diverse environments, from frigid outdoor environments to hot automotive engine compartments, placing extremely high demands on the temperature adaptability of components. The TQW19 boasts a wide operating temperature range of -55°C to +105°C and can withstand continuous operation at its rated temperature up to 105°C. Its ripple current rating features a clearly defined segmented temperature coefficient, allowing engineers to accurately calculate its actual operating capacity under different ambient temperatures, ensuring sufficient design margin. This wide temperature stability makes it ideal for extreme environments such as automotive electronics (e.g., ECUs, ADAS modules), industrial automation (motor drives, robotics), and military projects.
ymin Electronics' quality requirements for the TQW19 exceed industry standards, having passed a series of rigorous durability tests to provide users with long-term quality assurance.
• 2000-hour Durability Test: After continuous operation at rated voltage under the highest rated temperature for 2000 hours, its capacity change rate, loss tangent, and leakage current were all controlled within extremely small ranges, demonstrating its excellent long-term stability.
• High Temperature and Humidity Load Test: After being stored in a harsh environment of 60°C and 90%-95% humidity for 500 hours, the TQW19 still maintained its performance parameters within safe ranges, demonstrating its strong environmental resistance and anti-aging capabilities, making it ideal for use in new energy fields (such as photovoltaic inverters and energy storage systems) or in humid environments.
Based on these characteristics, the TQW19 shines in numerous high-end application areas:
• Automotive Electronics: In automotive engine control units (ECUs), infotainment systems, and advanced driver assistance systems (ADAS), the TQW19 provides clean power to the core processors, ensuring stable operation of the vehicle under harsh environments such as vibration and high temperatures, thus guaranteeing driving safety.
• AI Data Servers/Communication Equipment: As a decoupling capacitor for FPGA, CPU, and ASIC chips on server motherboards and switch boards, the TQW19's low ESL/ESR characteristics are crucial for maintaining high-speed signal integrity and system stability, making it a key component for ensuring 24/7 uninterrupted operation of data centers.
• Robotics and Drones: In compact robot joint drive controllers and drone flight control systems, the TQW19's small size and high reliability save space and reduce weight while handling the huge current surges caused by motor start-stop.
• Industrial Motor Drives and Smart Meters: In motor drives that frequently switch power and smart meters that are exposed to the outdoors for extended periods, the TQW19's wide operating temperature range and long lifespan ensure durability in both industrial and natural environments.
Conclusion
The TQW19 is more than just a capacitor; it's a product of Sunmax Electronics' deep expertise in electronic components and its profound understanding of market demands and technological trends. It combines numerous advantages, including a thin profile, low ESR/ESL, high ripple current, high reliability, and a wide operating temperature range, perfectly aligning with the modern trend towards high performance, high density, and high reliability in electronic devices. Choosing the TQW19 means choosing a powerful and stable "heart" for your product, safeguarding your innovative designs, and helping you gain a competitive edge in the fierce market. For more technical details or to obtain samples, please contact the Sunmax Electronics team.
