SDL

Empowering the Future, Unleashing Moments of Power: The Superior Performance and Application Prospects of YMIN SDL Series Supercapacitors

In today's technologically advanced era, driven by the pursuit of efficiency, energy conservation, and reliability, innovation in energy storage technology is a key force propelling progress across all industries. Between batteries and traditional capacitors, supercapacitors occupy an indispensable position with their unique advantages. YMIN, a leading capacitor manufacturer in China, has launched its SDL series Electric Double Layer Capacitors (EDLCs), a prime example in this field. It is not only a highly efficient energy carrier but also a "momentary power engine" that solves the power bottleneck of modern electronic systems.

The core value of the SDL series supercapacitors lies in filling the performance gap between traditional aluminum electrolytic capacitors and chemical batteries. Compared to batteries, while its energy density is lower, its power density is extremely high, enabling rapid charging and discharging on a second- or even millisecond-level scale. Compared to ordinary capacitors, its capacity is enormous, reaching farad (F) levels or even hundreds of farads, capable of storing and releasing considerable energy.

This unique combination of performance makes the SDL series more than just a simple circuit element; it is a highly efficient "energy hub." Its main technical features can be summarized as follows:

• High power density and fast response: Capable of instantly providing or absorbing huge peak currents to meet the instantaneous high power demands of equipment during startup, braking, or handling sudden loads.

• Ultra-long cycle life: Up to 500,000 charge-discharge cycles, far exceeding the lifespan of any chemical battery, truly achieving the design goals of "maintenance-free" or "lifespan equal to that of the equipment."

• Wide operating temperature range: Stable operation in harsh environments from -40℃ to +70℃, especially suitable for starting equipment in low-temperature environments, where the performance of chemical batteries degrades drastically at low temperatures.

• High safety and reliability: Utilizing physical energy storage principles, there is no chemical reaction, eliminating the risks of combustion or explosion, and complying with RoHS and REACH environmental directives.

• Excellent self-discharge characteristics: After 24 hours of rest, its terminal voltage still remains above 80% of the rated voltage, ensuring effective energy preservation.

The superior performance of YMIN SDL series supercapacitors stems from its careful material selection, rigorous manufacturing process, and strict quality control.

1. Low ESR Design: Key to Power Output

A significant advantage of the SDL series products is their extremely low equivalent series resistance (ESR). As shown in the product specifications, their ESR value can be as low as 10mΩ. Low internal resistance means minimal energy loss during charging and discharging, resulting in higher efficiency. This not only reduces heat buildup and improves reliability, but more importantly, it ensures that the voltage does not drop sharply when a large instantaneous current is required, thus guaranteeing stable and powerful power support for the downstream load.

2. Stringent Lifetime Testing Standards: Guarantee of Reliability

YMIN has set lifetime testing standards for the SDL series products that far exceed industry standards. For example, after 1000 hours of full-load operation at 70°C, the rate of change of capacity (ΔC) is still less than 30% of the initial value, and the increase in internal resistance is less than four times the initial value. In addition, there are steady-state damp heat life tests (40°C, 90-95% RH, 240 hours) and 50,000 charge-discharge cycle life tests. These stringent test data provide engineers with solid confidence when designing highly reliable systems.

3. A Refined Product Matrix: Meeting Diverse Needs

The SDL series offers a wide capacitance range from 1.0F to 160F, and diameter sizes from 8mm to 22mm. This refined product matrix allows engineers to flexibly select based on specific space constraints, energy requirements, and power demands. Whether needing tiny capacities for RAM data backup or ultra-large capacities for energy recovery, the SDL series provides precise solutions.

The characteristics of the SDL series supercapacitors make them shine in many cutting-edge technology fields.

1. Automotive Electronics: Intelligent Start-Stop and Energy Recovery

In new energy vehicles and intelligent vehicles, SDL supercapacitors are ideal for intelligent start-stop systems. When the car is temporarily stopped and the engine is off, the supercapacitor can instantly power systems such as air conditioning and audio systems; when starting is needed, it can instantly provide a large current to drive the starter motor, reducing the impact on the battery and extending battery life. In brake energy recovery systems, it can efficiently capture and quickly store the instantaneously generated braking energy for the next acceleration, effectively improving energy utilization efficiency.

2. AI Data Servers and Communication Equipment: Handling Instantaneous Power Peaks

AI servers, 5G base stations, and other devices generate instantaneous high-power pulses during computation or signal processing. Traditional power systems struggle to respond to such rapid demand changes, potentially leading to voltage drops, system instability, or even system crashes. Connecting SDL supercapacitors in parallel with the main power supply acts as an "instantaneous power pool," quickly filling the gap when the system requires peak power, maintaining voltage stability, and ensuring 24/7 uninterrupted operation of critical equipment.

3. Robotics and Industrial Automation: Ensuring Safety and Precision

In industrial robots, AGVs (Automated Guided Vehicles), and drones, SDL supercapacitors can be used as emergency backup power. When the main power supply is unexpectedly interrupted, it can immediately provide power, allowing the robot to complete its current action and stop safely, or enabling the drone to make an emergency landing, avoiding property damage and personal injury. Simultaneously, it provides peak power in motor drives, ensuring the speed and precision of robot movements.

4. Smart Meters and IoT Devices: Ensuring "Data Preservation"

In smart meters, water meters, and gas meters, SDL supercapacitors can serve as a power source for power outage protection. When the mains power fails, it immediately takes over the power supply, allowing the meter to complete its final data recording and upload alarm information, ensuring the integrity and accuracy of the metering data. Its ultra-long lifespan fully matches the meter's own service life of over 10 years.

5. New Energy and Energy Storage Systems: Smoothing Power Fluctuations

In systems such as solar streetlights and wind power generation, the instability of sunlight and wind can lead to fluctuations in output power. SDL supercapacitors can charge and discharge rapidly, smoothing out these fluctuations and providing a more stable energy source for subsequent batteries or the power grid. This protects batteries from damage caused by frequent charging and discharging, extending the lifespan of the entire system.

IV. Reasons to Choose YMIN SDL Series

YMIN not only provides high-performance SDL series products but also offers one-stop capacitor solutions. The company has a comprehensive quality management system, strong R&D capabilities, and a rich product line, from aluminum electrolytic capacitors to MLCCs and supercapacitors, capable of meeting diverse customer needs. Its Shanghai-based production base ensures stable production capacity and supply chain. Choosing YMIN means choosing a reliable technology partner, not just a component supplier.

Conclusion

YMIN's SDL series supercapacitors, with their high power, long lifespan, high reliability, and fast response capabilities, are becoming indispensable key components in modern electronic system design. They cleverly solve the balance between high-power instantaneous demands and long-term reliability, providing engineers with greater design flexibility. Under the major trends of intelligentization, electrification, and connectivity, the SDL series supercapacitors will undoubtedly empower innovative applications across more industries with their superior performance, unleashing unlimited technological potential.