3V Winding Type Super Capacitor

The Performance Characteristics of 3V Winding Supercapacitor：

High energy, high power series

Kamcap's supercapacitor 3V series is available in temperatures ranging from -40 to +65 °C and is suitable for long-term stability in high pressure environments.

SE/HE series kamcap super capacitor products use a temperature range of -25 ° C ~ 70 ° C low leakage, suitable for long-term continuous discharge of small current.

SP/HP/LR seires kamcap super capacitor products use a temperature range of -40 ° C ~ 70 ° C low internal resistance, providing instantaneous high current output.

3V High Power Series: The Advanced Energy Solution

Kamcap’s 3V winding type supercapacitors (HP Series) represent a significant voltage upgrade from standard 2.7V cells, providing higher energy density and stability for modern electronic systems. Engineered for long-term reliability in high-pressure environments, these capacitors are the preferred choice for engineers seeking a balance between high power output and robust thermal endurance.

Optimized Voltage: The 3.0V rated voltage offers a higher energy buffer, reducing the number of cells needed in series configurations.

Broad Capacity Range: From compact 1F units for RTC backup to massive 500F cells for industrial power bursts.

Dual-Series Advantage: We offer the SE/HE Series for low-leakage, small-current discharge and the SP/HP/LR Series for instantaneous high-current demands.

Why Choose 3.0V Supercapacitors Over 2.7V?

When designing modern energy storage systems, upgrading from 2.7V to 3.0V supercapacitors (HP Series) offers significant technical and economic advantages. Here is why engineers are making the switch:

Higher Energy Density (23% Increase)

According to the energy formula ($E = 1/2 CV^2$), energy storage is proportional to the square of the voltage. A 3.0V cell stores approximately 23% more energy than a 2.7V cell of the same capacitance. This allows for a more compact device design without sacrificing power performance.

Superior Cost Efficiency & Simplified PCB Design

In common 6V, 12V, or higher voltage systems, using 3V cells reduces the total number of components needed in series. For example, two 3.0V cells can achieve a 6.0V system, whereas 2.7V cells might require more complex management. This simplification lowers the Total Cost of Ownership (TCO) and reduces the complexity of PCB layouts.

Enhanced Reliability in High-Pressure Environments

The Kamcap 3.0V series is specifically designed to handle high-pressure stability. By providing a higher voltage ceiling, these capacitors offer a larger safety margin against voltage spikes, ensuring long-term durability in mission-critical applications.

Superior Temperature Resilience for Outdoor Use

Our 3V winding type capacitors operate reliably across a wide temperature range from -40°C to +65°C. This ensures that critical infrastructure, such as Power Distribution Terminals (TTU) and Smart Meters, remains fully functional in extreme outdoor climates and harsh industrial environments.

Specification & Drawing of 3V Winding Ultracapacitor Series

Series name	HP Series High power type ultracap
Type name	HP-3R0
Rated voltage VR	3.0V
Surge voltage	3.15V
Capacity range	1F-500F
Operating temperature range	-40 ~ +65℃
Product life	Normal temperature cycle life：25℃, 1 million cycles between VR and 1/2VR , Capacity attenuation≤30%, ESR change≤4 times.
	High temperature endurance life：Maximum temperature retention VR，1000 hours.Capacity attenuation≤30%, ESR change≤4 times.