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Eaton B0820-2R5225-R Supercapacitor 2.2 F / 2.5 V Cylindrical Cell
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pEaton B0820-2R5225-R — supercapacitor, 2.2 F, 2.5 V rated./p
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Eaton B0820-2R5225-R Supercapacitor 2.2 F / 2.5 V Cylindrical Cell
Eaton B0820-2R5225-R Supercapacitor 2.2 F / 2.5 V Cylindrical Cell belongs to the Eaton range. It stores 2.2 F, rated 2.5 V, ESR 0.2 Ω.
Technical Data
| Parameter | Rating |
|---|---|
| Parameter | Value |
| Orderable part number | B0820-2R5225-R |
| Capacitance | 2.2 F |
| Maximum working voltage | 2.5 V |
| Stored energy | 1.91 mWh at rated voltage |
| Maximum ESR | 0.2 Ω |
| Capacitance tolerance | -20%/+80% |
| Case | Ø8 x 20 mm (nominal) |
| Operating temperature | -25 to +70 °C |
| Terminals | axial lead |
| Series | B - Cylindrical Cell |
| RoHS | Compliant (-R suffix) |
Design Notes
- Watch the voltage derating curve before sizing the bank.
- Series resistance and cell balancing affect usable life.
- Confirm terminal torque and busbar alignment at assembly.
- Cells in series need balancing — imbalance shortens the whole string.
- Keep the string voltage under the module rating at end of charge, not just nominal.
Where It Is Used
Typical places this supercapacitor turns up:
- battery
- EV
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