RS PRO 1 Farad Electric Double Layer PCB Supercapacitor, 5.5V DC, SG Series, -20 to 80% Tolerance, 184-5511

The RS PRO 184-5511 is a high-performance 1 farad supercapacitor designed with electric double layer (EDLC) technology. This component is part of the SG series and is engineered for PCB mounting, making it ideal for compact installations in electronics, industrial controllers, and power backup systems.

This supercapacitor delivers a rated capacitance of 1F and operates at 5.5V DC, allowing it to provide quick charge and discharge cycles for energy-smoothing, power hold-up, and memory retention functions. Its broad tolerance of -20% to +80% accommodates demanding applications where energy characteristics may vary.

Notably, it offers a very low leakage current (20μA typical) and an equivalent series resistance (ESR) of 30Ω, supporting efficient charge storage and release. The robust lifetime rating of up to 200,000 cycles ensures continual operation in backup power roles, such as in uninterruptible power supplies (UPS), solar-powered circuits, rapid-charging motor drives, and advanced metering infrastructure.

Thanks to its compact dimensions - 19mm diameter, 9.2mm height and PCB-mount form factor with 19mm lead pitch - this capacitor is easily integrated into densely populated circuit boards where space and stability are critical. Its wide operating temperature range from -40°C to +70°C enhances reliability for applications exposed to challenging environments or variable climates.

As a polarized, 2-pin device, the 184-5511 simplifies installation while reducing risks of incorrect integration. Compliance with BS EN 61340-5-1:2007 and ANSI/ESD S20.20:2014 standards grants extra confidence for use in sensitive or mission-critical equipment.

This capacitor is commonly used in electronics requiring short-term high-power bursts or in scenarios where battery replacement is impractical. Industrial and commercial roles include use in backup power supplies, solar circuit energy storage, fast-charging motor drives, and smart metering electronics.

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