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Vishay Extends Useful Life of 500V Snap-in Power Aluminum Capacitors to 5,000 h at +105 °C

18.4.2017
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source: Vishay news

MALVERN, Pa. — April 12, 2017 — Vishay Intertechnology, Inc. (NYSE: VSH) today announced that the company has extended the useful life of 500 V devices in its 159 PUL-SI series of snap-in power aluminum capacitors. 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.

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Featuring a cylindrical aluminum 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 22 x 25 mm to 35 x 60 mm. Offering rated voltages from 200 V to 500 V, the devices feature high ripple current to 2.80 A, maximum ESR down to 150 mΩ at 100 Hz, and a maximum operating temperature to +105 °C.

As polarized aluminum 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.

Device Specification Table

Case size (D x L in mm) 22 x 25 to 35 x 60
Capacitance range 56 µF to 1800 µF
Tolerance ± 20 %
Ripple current at 120 Hz and + 105 °C 0.48 A to 2.80 A
Rated voltage 200 V to 500 V
Category temperature range -25 °C to +105 °C
Useful life at +105 °C 5,000 hours
Max. ESR at 100 Hz 150 mΩ to 3200 mΩ
Max. impedance at 10 kHz 130 mΩ to 1950 mΩ
Sectional specification IEC 60384-4/EN130300
Climatic category IEC 60068 25/105/56

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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