Panasonic Supercapacitor Technical Specifications

A Detailed Guide to Capacitance, Voltage, Temperature and More

panasonic supercapacitor physical components and circuits

Key Highlights

Wide Capacitance Range: Models from 0.22 F up to 50 F and beyond.
Robust Voltage & Temperature Ratings: Voltage ratings typically 2.3V to 5.5V and operational temperatures from -40°C to +85°C.
Diverse Series Options: Highlighting specialized performance with various series for high energy density, low ESR, and long life spans.

Overview of Panasonic Supercapacitors

Panasonic’s supercapacitors, also referred to as Electric Double Layer Capacitors (EDLCs) or "Gold Capacitors," are engineered to offer exceptional performance in applications involving rapid charge/discharge cycles, energy storage, and memory backup systems. Utilizing sophisticated technology and advanced materials such as activated carbon electrodes and organic electrolytes, these components provide high energy density and efficiency. Designed for integration into a host of electronic devices, they play a critical role in power smoothing, renewable energy systems, and high-current applications.

Capacitance Specifications

Range and Diversity

One of the most attractive features of Panasonic supercapacitors is their wide range of capacitance values. The devices are available in models that start at as low as 0.22 F and extend up to 50 F or more in some high-capacity offerings. This expansive range allows designers and engineers to select the appropriate model for applications that require anything from rapid bursts of energy to sustained power delivery.

Typical Capacitance Examples

Examples of capacitance ratings include:

0.22 F at 3.6V for compact designs where space is a premium.
0.33 F models designed for general energy storage and backup purposes.
1.5 F models which balance size and energy requirements.
High-capacity devices reaching up to 50 F, which are suited for applications requiring more substantial energy delivery.

Voltage and Electrical Characteristics

Voltage Ratings and Performance

Voltage rating is another critical specification in Panasonic supercapacitors. These devices are generally rated for voltages ranging from 2.3V to 5.5V. The selected voltage is often determined by the requirements of the application and the design constraints of the overall system.

Detailing Voltage Ratings

The voltage characteristics include:

Standard Ratings: Most models come with ratings such as 2.7V and 5.5V, ensuring compatibility with common electronic components.
Specialized Applications: Some series may offer specific ratings to cater to niche applications, ensuring optimal performance.

In addition to the nominal voltage ratings, internal resistance characteristics such as Equivalent Series Resistance (ESR) are also critical. Panasonic devices are noted for having relatively low ESR, which promotes efficient energy transfer during rapid charging or discharging.

Operating Temperature and Endurance

Temperature Range and Lifespan

Panasonic supercapacitors are engineered to function under a wide variety of environmental conditions. They typically offer an operating temperature range from as low as -40°C to as high as +85°C. This adaptability makes them particularly valuable in applications where the device may be exposed to varying temperatures.

Longevity and Endurance

Endurance is measured in how many hours the supercapacitor can operate reliably under specified conditions. Several models are rated for:

1,000 hours at 70°C, providing robust performance in high-temperature applications.
Up to 6,000 hours at 85°C, which can equate to over 10 years of operational life at reduced temperatures.

This level of endurance is particularly beneficial for memory backup uses, automotive systems, and industrial applications where stable performance over long periods is necessary.

Physical Dimensions and Terminal Configurations

Size, Mounting, and Connection Options

The physical dimensions of Panasonic supercapacitors vary widely depending on their capacitance and intended use. They are offered in different package types such as through-hole components, radial leaded formats, and even stacked coin configurations for low-profile applications.

Practical Considerations

Important considerations include:

Compact Size: Smaller models are ideal for devices where space is at a premium, such as portable electronics.
Thermal Management: The physical design often incorporates features to effectively manage heat in high-power applications.
Terminal Types: Options include PC pin terminals and radial leaded terminals, allowing for versatile mounting solutions that integrate seamlessly into existing designs.

Series Variations and Specialized Features

Distinct Series for Different Applications

Panasonic offers several series of supercapacitors, each designed to meet the requirements of distinct use cases. These series provide enhanced features that cater to specific performance parameters:

Highlighted Series Features

LF Series: Recognized for their high volumetric efficiency, these are excellent for applications where space and power density are critical.
HL Series: These models emphasize low ESR and temperature guarantee, making them well-suited for high-current applications such as motor driving.
HW Series: Designed explicitly for high-temperature and high-humidity conditions, ensuring reliable operation in challenging environments.
SP-Cap Series: These low-profile capacitors offer high ripple current capacity and are commonly implemented in high-performance, space-limited electronic devices.

Application-Specific Considerations

The selection of a particular series or model is often dictated by the intended application. Panasonic supercapacitors are extensively used in:

Memory Backup Systems: Ensuring data integrity during power outages by providing a reliable secondary power source.
Industrial Automation: Stabilizing power supplies in complex systems requiring rapid charge and discharge cycles.
Automotive Applications: From start-stop systems to energy recovery systems, these capacitors are engineered for durability under repetitive load cycles.
Consumer Electronics: Enhancing the energy efficiency of high-output devices such as LED lighting and audio systems.

Technical Table: Comparison of Key Specifications

Series	Capacitance Range (F)	Voltage Rating (V)	Operating Temperature	Endurance	Applications
LF Series	Various, high density	Typically 2.7V - 5.5V	-40°C to +85°C	Up to 6000 hours at 85°C	Compact, high-voltage-density systems
HL Series	Mid-range values e.g., 0.33F to 1.5F	2.7V to 5.5V	-40°C to +85°C	1000 to 6000 hours, depending on model	High-current, motor driving applications
HW/High-Temp Series	Various, optimized for energy density	Typically 5.5V (special ratings available)	-25°C to +85°C	Up to 6000 hours at elevated temperatures	Automotive, industrial, high-humidity environments
SP-Cap Series	Lower F values with compact size	2.3V - 3.6V typically	-40°C to +70°C	Customized for long-term backup	Low-profile electronic devices, memory backup

Evaluating Key Technical Parameters

Understanding ESR and High Energy Density

The Equivalent Series Resistance (ESR) plays an essential role in the performance of supercapacitors. A lower ESR ensures that the capacitor can efficiently deliver energy during rapid charge or discharge cycles, minimizing energy loss. Panasonic’s devices are engineered to maintain low ESR values, which is vital in high-frequency applications and scenarios requiring instant power delivery.

High Energy Density

In addition to low ESR, many Panasonic supercapacitors boast an energy density that can exceed 4 Wh/Kg, with some models even surpassing 5 Wh/Kg. This high energy density signifies that these capacitors can store a substantial amount of energy relative to their mass, which is a crucial factor in applications such as electric vehicles and portable electronics.

Specialized Application Features

Memory Backup and Secondary Power Supply

Among the many uses for Panasonic supercapacitors, one of the most significant is their role in memory backup systems. In these scenarios, the capacitor provides a vital secondary power source to ensure that sensitive data remains intact during temporary power failures or system resets. This feature is especially critical in industries such as computing, telecommunications, and industrial automation.

Application in Renewable Energy Systems

The integration of supercapacitors into renewable energy systems further underscores their versatility. Acting as stabilizers, these components help smooth out power fluctuations, thereby enhancing the overall efficiency and reliability of energy storage and distribution systems. Their ability to rapidly charge and discharge is highly valued in settings where power consistency is crucial, such as wind and solar power installations.

Broader Implications for Circuit Design and Integration

Design Considerations

When incorporating Panasonic supercapacitors into circuit designs, engineers must consider several factors:

Voltage Matching: Ensure that the operating voltage of the capacitor aligns with the system requirements to prevent overvoltage damage.
Thermal Management: Given the variations in operating temperatures, incorporate appropriate cooling or heating measures where necessary.
Physical Integration: With varying dimensional footprints and terminal configurations, selecting the appropriate mounting method is essential to maximize performance.

These design considerations are vital in ensuring system reliability and enhancing the performance of the overall electronic solution.

Additional Performance Metrics and Considerations

Endurance and Life Span

The endurance ratings of Panasonic supercapacitors, ranging from 1,000 hours in high-temperature applications to up to 6,000 hours at elevated conditions, play a pivotal role in their selection for long-term usage scenarios. These metrics reflect not only the capability of the capacitor to withstand numerous charge/discharge cycles but also its ability to perform reliably over the extended operational periods required in critical tasks such as automotive utilities and industrial machinery.

Temperature Endurance

The supercapacitors are designed to tackle extreme temperatures. With operational boundaries typically stretching from -40°C to +85°C, design engineers can confidently employ these devices in a wide range of environmental conditions without worrying about premature performance degradation.