Power aluminium capacitors suit solar applications
Expanding its portfolio of snap-in power aluminium capacitors, Vishay Intertechnology has introduced 159 PUL-SI series devices with voltage ratings of 500V at +105 °C. Featuring a long useful life, high ripple current to 2.80A at +105 °C, and maximum ESR down to 150 mΩ at 100Hz, these capacitor are designed for solar PV inverters, industrial motor controls, and power supplies.
Available in a selection of case sizes ranging from 22x25mm to 35x60mm, the snap-in capacitors are suppplied in a cylindrical aluminium case with a pressure relief valve, insulated with a blue sleeve. Operating over a temperature range from -25 to +105°C, the 159 PUL-SI series offers a capacitance range of 56-1800µF, useful life of 3,000-5,000 hours, and maximum impedance at 10kHz of 130-1950mΩ.
The 159 PUL-SI series are polarised aluminium electrolytic capacitors with a non-solid electrolyte. Therefore they are suited for smoothing, filtering, and energy storage in pulsed power applications. The capacitors are also available in a keyed polarity snap-in version.
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Case size (D x L in mm) |
22 x 25 to 35 x 60 |
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Capacitance range |
56 µF to 1800 µF |
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Tolerance |
± 20 % |
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Ripple current at 120 Hz and + 105 °C |
0.48 A to 2.80 A | |
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Rated voltage |
200 V to 450 V |
500 V |
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Category temperature range |
-25 °C to +105 °C |
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Useful life at +105 °C |
5,000 hours |
3,000 hours |
| Max. ESR at 100 Hz |
150 mΩ to 3200 mΩ |
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| MAx. impedance at 10 kHz |
130 mΩ to 1950 mΩ |
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Sectional specification |
IEC 60384-4/EN130300 |
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Climatic category IEC 60068 |
25/105/56 |
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With lead times of 10-12 weeks, the 159 PUL-SI series capacitors are available now for sampling and in production quantities.
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