SUNTAN TECHNOLOGY COMPANY LIMITED · ALL KINDS OF CAPACITORS

Ripple current failure in electrolytic capacitors originates from internal heating caused by AC ripple superimposed on DC bias. Ripple heating accelerates electrolyte evaporation, increases ESR drift, and reduces effective capacitance. When internal heating combines with elevated ambient temperature, service life decreases faster than predictions based only on rated voltage or ambient rating.

System-Level Reliability Issue in SMPS and LED Drivers

Radial aluminum electrolytic capacitors in output filters experience continuous ripple stress. In SMPS topologies operating above 50kHz, RMS ripple current can exceed thermal design assumptions. In LED drivers, enclosed fixtures create high ambient conditions, further elevating capacitor core temperature.

Typical field symptoms include ESR rise, capacitance drop, ripple voltage increase, LED flicker, and output instability. These failures are thermal wear-out mechanisms rather than dielectric breakdown.

Electrothermal Mechanism of Ripple Heating

P = I_ripple² × ESR

Ripple current generates heat internally in the electrolyte and foil structure. Poor thermal dissipation causes localized temperature rise. Elevated core temperature accelerates electrolyte loss and oxide layer degradation, increasing ESR, which in turn increases ripple heating in a feedback loop.

Lifetime Impact Under Combined Stress

Temperature acceleration models show lifetime approximately halves for every 10°C rise. Ripple-induced core heating adds to ambient temperature, effectively pushing capacitors toward their endurance limits. Continuous operation environments such as LED luminaires and industrial power supplies show highest vulnerability.

Engineering Selection Criteria for Ripple Environments

Series Comparison for Upgrade Without PCB Redesign

Environment-Based Selection Strategy

Reliable operation requires selecting capacitors based on combined ripple and temperature conditions rather than voltage rating alone.

For specification comparison based on ripple and temperature conditions, refer to official radial electrolytic capacitor specifications.

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SUNTAN TECHNOLOGY COMPANY LIMITED · ALL KINDS OF CAPACITORS

When evaluating polymer aluminum electrolytic capacitors for power supply designs, engineers and sourcing teams typically focus on three practical factors:

• Electrical performance suitable for modern power circuits
• Ease of sourcing with flexible lead time and MOQ
• Smooth design-in without unnecessary cost burden

Suntan Technology · All Kinds of Capacitors.
Polymer aluminum electrolytic capacitors designed for power supply and DC-DC applications.

Market Positioning of Suntan TS13 Polymer Series

Rather than competing purely at the premium end, the TS13 series targets engineers who need:

• High performance aligned with low ESR and high ripple current requirements
• Good availability, including flexible lead time and MOQ-friendly supply
• Easy design-in, with familiar form factors for power and filtering circuits

This makes the TS13 series a practical option when comparing polymer aluminum electrolytic capacitors for commercial, industrial, and consumer power designs.

TS13 Polymer Series Overview

Each model within the Suntan TS13 Polymer Aluminum Electrolytic Capacitors family is designed to support different power supply environments without adding unnecessary complexity to the design process.

Application-Oriented Selection Guide

When designing compact and reliable electronic devices, choosing the right capacitor is essential for achieving stable performance and long service life. Suntan’s TS13MA and TS13MB SMD Multilayer Solid Capacitors deliver exceptional electrical characteristics in space-saving packages, making them ideal for a wide range of compact power applications.

Key Features

• Long lifespan – 2,000 hours at 105 °C endurance for reliable performance.
• Low ESR – Supports high-frequency, low-impedance designs.
• Wide operating temperature range – -55 °C to +105 °C.
• Voltage range – 2 V to 25 V DC.
• RoHS compliant and lead-free – Environmentally friendly design.
• Versatile applications – Suitable for System Boards, Display Cards, Small Chargers, and Smart TVs.

TS13MA – Ultra-Low Profile for Space-Limited Designs

• Height: Only 1.9 mm, ideal for ultra-thin and compact layouts.
• Capacitance range: 2.2 µF to 470 µF.
• Lowest ESR: Down to 4.5 mΩ (100 kHz, 20 °C).
• Best for: Slim devices, display modules, and portable electronics where board height is critical.

TS13MB – Higher Capacity for Power-Intensive Circuits

• Height: 2.8 mm, allowing for higher capacitance values.
• Capacitance range: 6.8 µF to 680 µF.
• High ripple current capability: Up to 4,800 mArms at 100 kHz.
• Best for: Power supply boards, voltage regulator modules, and circuits demanding higher energy storage.

Why They’re Ideal for Compact Power Applications

• Space-saving footprint – Both models feature a 7.3 × 4.3 mm case size, minimizing PCB real estate.
• Stable performance across temperature – Low impedance variation from -55 °C to +105 °C ensures consistent operation.
• Flexible design options – Multiple voltage and capacitance combinations to meet different circuit requirements.

Typical Applications

• System Boards & Motherboards – Stable power delivery for processors and controllers.
• Graphics & Display Cards – Supports high-speed data processing with low ESR.
• Portable Chargers & Adapters – Maintains efficiency in compact designs.
• Smart TVs & Home Appliances – Reliable filtering and energy storage.

Conclusion

For engineers seeking a balance between compact size, low ESR, and long-term reliability, Suntan’s TS13MA and TS13MB SMD Multilayer Solid Capacitors offer the perfect solution. Whether your design prioritizes ultra-low profile or higher capacity, these capacitors deliver dependable performance in demanding applications.

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When designing compact power systems, engineers often face the challenge of balancing performance, footprint, and reliability. The Suntan TS13C Series SMD Aluminum Electrolytic Capacitors are engineered to solve this problem by delivering stable performance in high-density layouts — without compromising on ripple endurance or temperature stability.

Compact Size Meets High Ripple Capability

The TS13C series is ideal for applications where board space is limited, but current demands are high. Key features include:

• Case sizes as small as Φ4×5.4mm
• Rated ripple current up to 1190mA (TS13CY)
• Extra low impedance options for switching power designs
• Stable ESR across a wide frequency range

This makes TS13C an excellent fit for compact devices such as adapters, display cards, and embedded system boards.

Sub-Series for Targeted Applications

• TS13C9: Extremely low leakage current, ideal for sensitive circuits
• TS13CD: Rated up to 400VDC, with 5,000-hour endurance
• TS13CW: Offers up to 10,000 hours of stable operation at 105°C
• TS13CR / TS13CY: Designed for high ripple, solvent-resistant environments
• TS13CJ: Specifically optimized for LED display boards

This modular approach ensures engineers can select the exact match for their application — whether it's for high-frequency ripple handling or extended service life in high-temperature conditions.

Proven Performance in Harsh Conditions

• Endurance from 2,000 to 10,000 hours
• Heat and reflow resistance
• Ripple current stability
• Low-temperature impedance consistency

These capacitors are suitable for reflow soldering and ensure minimal ESR drift, even after prolonged exposure to heat cycles and ripple load.

Application Scenarios

• Compact switching power supplies
• System boards and communication modules
• LED backlighting circuits
• Automotive and industrial controllers
• Power decoupling in high-speed digital circuits

---- All Kinds of Capacitors

  In industrial power management, system reliability is crucial for ensuring continuous and efficient operation. Whether it's an uninterruptible power supply (UPS), power inverter, or motor drive, power systems must be designed to perform under demanding conditions. Low-ESR (Equivalent Series Resistance) capacitors are key components that help address these challenges, optimizing the performance and longevity of these systems.

Why Low-ESR Capacitors Are Essential in Industrial Power Systems

Low-ESR capacitors are specially designed to minimize internal resistance, allowing them to handle higher currents with reduced power loss. This feature makes them highly effective in industrial power applications, where efficiency and reliability are paramount. When used in devices like UPS, inverters, and motor drives, low-ESR capacitors help ensure stable power supply, reduce heat generation, and extend the lifespan of critical components.

In high-frequency circuits and power conversion systems, the ability to maintain stable voltage output without excessive energy loss is crucial. Low-ESR capacitors are the perfect solution for these demands, enabling more efficient energy use and better overall system performance.

Key Benefits of Low-ESR Capacitors

• Reduced Power Loss: Low ESR minimizes energy loss, making power conversion systems more efficient and reducing heat buildup in industrial applications.
• Improved Voltage Stability: Low-ESR capacitors help ensure stable voltage output, which is vital for sensitive electronic components in UPS systems and inverters.
• Longer Lifespan: With reduced heat and stress on components, low-ESR capacitors can last much longer than traditional capacitors, often surviving up to 5000 hours at 105°C.
• Reliable Performance in Harsh Environments: These capacitors can operate in extreme temperatures ranging from -55°C to +105°C, making them ideal for industrial settings where temperature fluctuations are common.
• Efficient Power Conversion: Low ESR improves power conversion efficiency, allowing for better energy use in motor drives, power storage, and other industrial systems.

Low-ESR Capacitors for UPS, Inverters, and Motor Drives

In critical applications like uninterruptible power supplies (UPS) and power inverters, a stable and continuous power source is necessary. Low-ESR capacitors are essential in these systems, helping to ensure that they can handle the high-frequency switching and variable loads without failure. These capacitors contribute to overall system reliability, reduce energy loss, and protect sensitive equipment from power surges.

In motor drives and industrial equipment, low-ESR capacitors help reduce energy consumption and improve overall efficiency by maintaining a consistent voltage output. This is especially important in environments that require continuous operation, as it reduces downtime and extends the lifespan of both power supplies and connected devices.

How to Choose the Right Low-ESR Capacitors

When selecting low-ESR capacitors for industrial applications, consider the following factors:

• Temperature Tolerance: Ensure the capacitor can operate within the required temperature range for your application.
• Lifetime: Look for capacitors with a long operational lifespan, especially if the system runs continuously for long hours.
• Voltage Rating: Choose capacitors with a voltage rating that suits the power supply requirements of your equipment.
• Capacitance and ESR: Select capacitors with appropriate capacitance values and low ESR to meet the specific needs of your power system.

Conclusion

Low-ESR capacitors are vital for improving the reliability, efficiency, and longevity of industrial power systems. Whether you’re working with UPS, inverters, motor drives, or power converters, incorporating low-ESR capacitors can ensure stable voltage regulation, reduce power loss, and enhance overall system performance.

For high-performance low-ESR capacitors designed for industrial power applications, explore Suntan’s TS13C7 series. With exceptional temperature tolerance, long lifespan, and low ESR, Suntan’s capacitors provide the reliability you need for critical industrial systems.

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All Kinds of Capacitors – Your Trusted Partner in Electronic Component

---- All Kinds of Capacitors

In today's rapidly advancing consumer electronics market,efficient power management is more important than ever. From portable devices to high-power electronics, every device requires capacitors that can deliver optimal performance without compromising on size, efficiency, or lifespan. This is where Suntan’s SMD capacitors, such as the TS13C4 and TS13C5, come into play. These capacitors are specifically designed to meet the evolving needs of modern consumer electronics, offering high stability, long lifespan, and low impedance—making them ideal for a wide range of applications.

Why SMD Capacitors Are Key to Modern Consumer Devices

The demand for consumer electronics capacitors has skyrocketed as device manufacturers continue to push for higher efficiency, smaller form factors, and better performance. Suntan SMD capacitors, including the TS13C4 and TS13C5, provide an unmatched solution to meet these challenges, enhancing everything from portable electronics to home appliances.

The Role of Low ESR and High Stability in Consumer Electronics

One of the standout features of the TS13C4 and TS13C5 is their low ESR (Equivalent Series Resistance). This characteristic significantly reduces power losses, ensuring that devices run efficiently while minimizing heat generation. Whether it's a high-power device like fast-charging power supplies or gaming consoles (TS13C5) or a low-power device like smart home gadgets and LED products (TS13C4), low ESR capacitors are crucial for ensuring stable power delivery and long-term reliability.

How Suntan Capacitors Support Modern Power Demands

• TS13C5 Capacitors: These capacitors are engineered for high-power applications such as fast-charging power supplies, where stable voltage regulation is key. They help minimize energy loss, improve the charging efficiency of USB-C PD chargers, and support high-power devices like gaming consoles.
• TS13C4 Capacitors: Designed for low-power applications, these capacitors ensure stable current supply and prevent power fluctuations in devices like smart home systems, LED products, and wearable technologies. They provide the reliability needed to keep these devices running smoothly.

Compact Design for High-Density Circuit Boards

One of the significant benefits of Suntan's SMD capacitors is their compact SMD design, making them perfect for high-density circuit boards in portable electronics and wearable technology. This space-saving design allows manufacturers to create smaller, more efficient devices without sacrificing performance.

Versatile Applications Across Consumer Electronics

1. Mobile Power Banks & Charging Devices: Efficient charging is essential in today’s fast-paced world. Suntan capacitors help ensure stable operation of fast-charging systems and power delivery for USB-C PD chargers, increasing charging efficiency.
2. Audio & Smart Home Devices: Suntan SMD capacitors also play a critical role in reducing electromagnetic interference (EMI), which is vital for providing clear sound quality in audio systems and stable voltage output in smart home devices.

Why Choose Suntan SMD Capacitors?

With high stability, long-life, and low-impedance characteristics, Suntan SMD capacitors are an essential choice for anyone working in the consumer electronics industry. The TS13C4 and TS13C5 capacitors are designed to enhance power management, minimize energy loss, and increase the overall lifespan of devices, making them the ideal choice for modern consumer electronics.

Discover More About Suntan SMD Capacitors

Looking to improve your products’ power efficiency, reliability, and lifespan? Suntan offers high-quality consumer electronics capacitors that deliver superior performance for today’s demanding applications. Learn more about our TS13C4 and TS13C5 capacitors and how they can elevate your devices’ performance.

Datasheet: Learn more about Suntan's SMD capacitors and explore our full range of products.

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info@suntan.com.hk
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All Kinds of Capacitors – Your Trusted Partner in Electronic Components