10F Supercapacitor - 2.7V Ultracapacitor for Backup Power
10F Supercapacitor ā 2.7V Ultracapacitor for Reliable Energy Storage
This 10 Farad supercapacitor offers massive capacitance in a compact cylindrical package for short-term energy storage. Use it for real-time clock backup, solar-powered circuits, or to buffer peak current in battery-less designs. Its low internal resistance ensures efficient charge/discharge cycles, making it a durable alternative to small batteries in many applications.
Key Specifications
| Specification | Value |
|---|---|
| Capacitance | 10 Farads |
| Rated Voltage | 2.7 V DC |
| ESR | <30 mĪ© |
| Operating Temperature | -40Ā°C to +85Ā°C |
| Leakage Current | <0.5 mA after 72h |
| Dimensions | 10 mm Ć 30 mm (approx.) |
What You Can Build With This
- RTC or SRAM power backup for microcontrollers
- Solar garden light or IoT sensor node power buffer
- Motor driver surge current supply to protect lithium cells
- DIY spot welder capacitor bank (use appropriate balancing circuit)
Compatibility
This 2.7V supercapacitor interfaces with any circuit that stays below its maximum voltage. It pairs with low-voltage boards like ESP8266 or Arduino (with a regulator) for backup power, or with boost converters to step up voltage. For higher voltage systems, place multiple units in series with balancing resistors.
Wiring Notes
Observe polarity: the longer lead is positive. Never apply reverse voltage. When charging from a constant current source, keep current below 500 mA unless specified. For series banks, add a voltage divider or active balancing IC to prevent overvoltage on individual cells.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.
Is this compatible with Arduino Uno?
Yes, but its 2.7V maximum is below the 5V logic level. Use a boost converter (e.g., TP4056 with BMS) to charge from a 5V USB port and power the Arduino's 3.3V rail.
How do I charge this supercapacitor safely?
Use a dedicated supercapacitor charger IC (like the BQ24210) or a simple series resistor. For a 5V source, start with a 10Ī© resistor and monitor voltage until it reaches 2.5V, then disconnect.
Can I replace a coin cell with this capacitor?
Absolutely. It provides far more cycles than a CR2032 and can be recharged thousands of times. Just ensure your circuit can run down to 2.7V and you add a charging path.
š¦ Free Setup Handoff Document Included
Every Compoden order includes a free setup handoff document ā step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.
Shipping Information
- Prepaid Orders: ā¹75 for orders up to ā¹999, FREE shipping above ā¹999
- COD Orders: ā¹125 shipping + ā¹50 COD fee = ā¹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items