SDA

SDA Series Supercapacitors: Ushering in a New Era of Efficient Energy Storage and Release

In today's era of pursuing efficient and sustainable energy solutions, the limitations of traditional batteries are becoming increasingly apparent: slow charging, limited cycle life, and insufficient power density. The SDA series 2.7V radial lead supercapacitors (also known as electric double-layer capacitors, EDLCs) launched by Shanghai YMIN Electronics Co., Ltd. are revolutionary products designed to overcome these bottlenecks. It is not merely a capacitor, but a bridge connecting instantaneous high-power demands with stable energy supply, redefining energy management in numerous fields with its superior performance.

I. Core Technology: A Solid Foundation for Superior Performance

The core advantage of the SDA series supercapacitors stems from its precise materials science and rigorous manufacturing process. Unlike traditional batteries that rely on chemical reactions, supercapacitors store energy by physically forming an electric double layer at the electrode-electrolyte interface. This fundamental difference endows the SDA series with unparalleled characteristics.

1. Exceptional Power Density and Rapid Charge/Discharge Capability:

SDA supercapacitors possess extremely low equivalent series resistance (ESR), with some models as low as tens of milliohms. This means that internal energy loss is minimal during charging and discharging, enabling energy absorption and release at an astonishing rate. This characteristic makes it ideal for applications requiring instantaneous bursts of high current, a feat unmatched by any traditional chemical battery.

2. Ultra-long cycle life and superior durability:

Because the charging and discharging process is a highly reversible physical process, rather than a chemical change accompanied by side reactions, the SDA series supercapacitors boast a cycle life of hundreds of thousands or even millions of cycles. Official data indicates that even at +70°C, with a continuously applied rated voltage of 2.7V, its lifespan is still guaranteed for 1000 hours. This ultra-long lifespan significantly reduces the overall lifespan maintenance costs and replacement frequency, making it particularly suitable for embedded systems or hard-to-reach locations.

3. Wide operating temperature range and stable reliability:

The SDA series can operate stably within a harsh temperature range of -40°C to +70°C. Whether in the frigid winters of the north or the high temperatures generated inside industrial equipment, it maintains stable performance. Its products have undergone rigorous high-temperature storage, load life, and humidity resistance tests, ensuring that the capacitance change rate and ESR remain within specified ranges even in harsh environments, demonstrating extremely high environmental adaptability and reliability.

4. Safety and Environmental Protection:

As a physical energy storage device, SDA supercapacitors do not contain heavy metals or other harmful substances, are RoHS and REACH compliant, and meet the environmental requirements of modern electronic products. Furthermore, their operating method avoids the risks of overheating, leakage, and even explosion that may occur with traditional batteries, resulting in higher safety.

II. Practical Applications: "Energy Spirits" Empowering Thousands of Industries

The technical characteristics of the SDA series supercapacitors make them indispensable in many cutting-edge and critical fields.

1. Automotive Electronics and Transportation: The "Instantaneous Power Core" of Intelligent Start-Stop Systems

In modern automotive intelligent start-stop systems, when the vehicle encounters a red light or traffic jam, the engine automatically shuts off to save fuel; when the green light comes on or when it needs to move forward, the engine must be instantly restarted. Traditional batteries are slow to respond when providing the large starting current required for instantaneous startup, and frequent high-current discharges severely shorten their lifespan. SDA supercapacitors perfectly fulfill this task. Connected in parallel with the battery, they are charged by the battery when the engine is stopped. At startup, the SDA responds in milliseconds, releasing a huge starting current to ensure a smooth and rapid engine start. This not only protects the vehicle's main battery and improves the driving experience but is also a key technology for achieving energy conservation and emission reduction goals.

2. Industrial Automation and Robotics: A "Buffer" and "Backup Power" for Peak Power

Industrial robots and intelligent robotic arms require instantaneous peak power for their drive motors when performing actions such as grasping, lifting, and sudden stopping. Directly supplying this power from the mains would impact the power grid and cause system voltage drops. Placing SDA supercapacitor banks in the motor drive system allows them to store energy during normal operation and release it rapidly when peak power is needed, smoothing load demands and protecting the mains power system. Meanwhile, as a backup power source, it can provide sufficient energy to the control system when the main power supply is suddenly interrupted, complete emergency data saving or execute safety shutdown procedures, prevent production interruption and data loss, and ensure the safety of equipment and personnel.

3. New Energy Sector: The "Power Smoothing Guardian" for Wind and Solar Power

Wind and solar power generation is inherently intermittent and unstable. A strong gust of wind or a passing cloud can cause drastic fluctuations in output power, posing a challenge to the stability of the power grid. Applying SDA supercapacitor arrays to wind turbine pitch systems or solar inverters can quickly absorb or release energy, effectively smoothing short-term power fluctuations in the output of wind turbines or photovoltaic panels. It can compensate for power spikes caused by gusts of wind or supplement power when sunlight is temporarily reduced, ensuring a more stable and reliable power quality supplied to the grid.

4. Smart Meters and Communication Equipment: The "Guardian" of Never-Loss Data

For IoT terminals such as smart meters, water meters, and gas meters, as well as the memory and real-time clock circuits in communication base stations, data preservation during power outages is crucial. SDA supercapacitors, with their extremely low self-discharge characteristics, serve as ideal backup power sources. While the main power supply is functioning normally, they are charged; in the event of a main power failure, they immediately power SRAM and RTC chips, ensuring critical metering data and clock information are not lost for days or even weeks, far exceeding the retention time of ordinary batteries or electrolytic capacitors.

5. Consumer Electronics and Smart Home: An "Accelerator" for Enhanced User Experience

In products such as power tools, high-speed USB PD chargers, and smart home devices, SDA supercapacitors can be used to achieve "instantaneous acceleration." For example, they can provide additional torque at the moment of starting a drill, or supplement power when a charger requires high power output, preventing device throttling or slowed charging speeds due to power adapter limitations, thus significantly improving the user experience and performance.

III. Product Series and Selection Flexibility

Shanghai YMIN Electronics offers a wide range of SDA series models to meet the capacity and size requirements of different application scenarios. From the compact SDA2R7L1050812 (1F, 8mm diameter) to the high-energy SDA2R7L1672255 (160F, 22mm diameter), customers can flexibly choose the most suitable model based on their specific requirements for capacitance, size, ESR, and leakage current. This diverse product portfolio ensures that the SDA series can be seamlessly integrated into various designs, from micro consumer electronics to large industrial equipment.

Conclusion

In summary, YMIN's SDA series 2.7V radial lead supercapacitors, with their core advantages of high power density, ultra-long lifespan, wide operating temperature range, and high reliability, have become a strategic component in modern electronic engineering for solving energy storage and release challenges. They are not only a powerful supplement to traditional battery technology but also an irreplaceable preferred solution in many situations. With the rapid development of the Internet of Things, Industry 4.0, new energy vehicles, and renewable energy, the SDA series supercapacitors will undoubtedly continue to provide strong and lasting power for innovative applications in various industries with their superior performance, working hand in hand with engineers to create a more efficient, intelligent, and reliable future.