Passives

Aluminium capacitors get new lease of life

13th April 2017
Mick Elliott
0

The useful life of its 500V devices in its 159 PUL-SI series of snap-in power aluminium capacitors has been extended by Vishay Intertechnology. For solar PV inverters, industrial motor control, and power supplies, the Vishay BCcomponents devices now offer a useful life of 5,000 hours at +105°C.

Featuring a cylindrical aluminium case with a pressure relief valve, insulated with a blue sleeve, 159 PUL-SI capacitors are available in a variety of case sizes ranging from 22x25mm to 35x60mm.

Offering rated voltages from 200 to 500V, the devices feature high ripple current to 2.80A, maximum ESR down to 150mΩ at 100Hz, and a maximum operating temperature to +105°C.

As polarised aluminium electrolytic capacitors with a non-solid electrolyte, the 159 PUL-SI series devices are ideally suited for smoothing, filtering, and energy storage in pulsed power applications.

The RoHS-compliant capacitors are also available in a keyed polarity snap-in version.

Samples and production quantities of the 159 PUL-SI series capacitors are available now, with lead times of 12 to 14 weeks.

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