Supercapacitor backup electrolytic capacitor EB39449552# THT – rotary/through-hole module

Electrolytic backup supercapacitor EB39449552# in THT (through-hole) format is designed for board-level energy storage and short-term power backup. This through-hole electrolytic supercapacitor provides rapid charge and discharge capability and reliable buffering for real-time clock modules, volatile memory retention, and other low-power systems. Its rotary/through-hole module form factor allows secure soldered mounting on printed circuit boards for repair, prototyping or compact backup power solutions.

Advantages

The component offers high capacitance density for its size, fast response to load transients, and long cycle life compared to ordinary capacitors. Its through-hole mounting ensures mechanical robustness and ease of replacement on existing boards. The electrolytic construction provides stable performance over many charge/discharge cycles and helps maintain critical system data during short power interruptions.

Suitable for

• RTC (real-time clock) backup and timekeeping circuits
• Volatile memory retention in microcontroller systems
• Short-term power hold-up for sensors and low-power modules
• Board-level repairs and prototype development requiring a through-hole backup capacitor

Key specifications

• Package type: through-hole (THT) rotary/through-hole module suitable for PCB soldering
• Capacitance behavior: high-capacitance electrolytic supercapacitor optimized for short-term energy storage
• Charge/discharge characteristics: rapid charge and discharge suitable for transient buffering
• Mounting: axial/rotary through-hole leads for mechanical stability on boards
• Operating environment: intended for low-voltage board-level backup applications

How to use

Install the THT supercapacitor on the PCB by aligning the leads with the designated through-holes and perform standard soldering procedures compatible with through-hole electrolytic components. Observe polarity marking and circuit orientation to prevent reverse connection. For best results, ensure the capacitor is placed close to the circuit requiring backup power, such as the RTC or memory backup lines, and provide appropriate charge-limiting or current-control paths within the design.

Usage recommendations

Use appropriate soldering temperatures and avoid prolonged heating of the component. Verify polarity before powering the assembly. Implement an appropriate charging resistor or current-limiting circuit when integrating the supercapacitor into systems to control inrush current and extend component life.