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

**URL:** https://aio.lv/en/product--supercapacitor-backup-electrolytic-capacitor-eb39449552-tht-rotarythrough-hole-module--6636756
**Data updated:** 2026-02-12 14:21 (EET)
**Category:** Other Repair Parts
**Manufacturer code:** EB39449552#
**EAN:** 3100000931537
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 4.34 €
**Prices and availability valid until:** 2026-08-14 23:59
**Price without VAT (21%):** 3.59 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--supercapacitor-backup-electrolytic-capacitor-eb39449552-tht-rotarythrough-hole-module--6636756

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

Electrolytic backup supercapacitor EB39449552# in THT (through-hole) format designed for board-level energy storage and short-term power backup. As a through-hole electrolytic supercapacitor, it provides rapid charge/discharge capability and reliable buffering for RTC, memory retention, and low-power systems. Suitable for repair, prototyping and applications requiring compact board-mounted backup power.

## Long description

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.

## FAQ

### How much does the Supercapacitor EB39449552# THT cost, and is it available for purchase?

The price is 4.34 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 23.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/6636756/49253755_large.webp