Vishay Intertechnology has introduced a new series of ruggedized ENYCAP™ Electrical Double-Layer Capacitors (EDLCs) for energy harvesting and power back-up applications in harsh and humid environments.
The Vishay 225 EDLC-R ENYCAP capacitors are the industry’s first to offer useful life of 2,000 hours at 85°C, and to meet the requirements of the toughest test of moisture resistance: the biased 85°C/85% relative humidity 1,000-hour test.
The long useful life of the devices is double that of standard EDLCs, giving scope for OEMs to design for maintenance-free operation.
Available in eight small case sizes ranging from 16mm x 20mm to 18mm x 40mm, the 225 EDLC-R ENYCAP capacitors offer high power density of as much as 4.1Wh/kg.

ENYCAP EDLCs: Range of cylindrical case sizes
| Part Number | Capacitance | Package (mm) |
| MAL222591003E3 | 20F | 16 x 20 |
| MAL222591006E3 | 25F | 16 x 25 |
| MAL222591004E3 | 25F | 18 x 20 |
| MAL222591007E3 | 30F | 18 x 25 |
| MAL222591002E3 | 35F | 16 x 31 |
| MAL222591001E3 | 40F | 18 x 31 |
| MAL222591008E3 | 50F | 18 x 35 |
| MAL222591009E3 | 60F | 18 x 40 |
Features
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