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Vishay Intertechnology Extends Rated Voltage of 157 PUM-SI Snap-in Power Aluminum Electrolytic Capacitors to 500 V for Solar Inverters and Industrial Motor Control
Space- and Cost-Saving Devices Offer Long Useful Life of 5,000 h or More
MALVERN, Pa. — July 28, 2015 — Vishay Intertechnology, Inc. (NYSE: VSH) today announced that it has extended its 157 PUM-SI series of ultra-miniature snap-in power aluminum electrolytic capacitors with a higher rated voltage of 500 V. Designed for power supplies, industrial motor controls, and solar PV inverters, the enhanced devices save board space and lower costs by allowing designers to utilize one component instead of two 250 V capacitors.
Featuring a cylindrical aluminum case, insulated with a blue sleeve, the Vishay BCcomponents snap-in capacitors are available in 23 case sizes ranging from 22 x 25 mm to 35 x 60 mm. At 500 V, the devices feature a maximum operating temperature to +85 °C and a long useful life of ≥ 5,000 hours.
As polarized aluminum electrolytic capacitors with a non-solid electrolyte, 157 PUM-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 2200 µF|
|Tolerance||± 20 %|
|Ripple current at 120 Hz and +85 °C||0.68 A to 3.68 A|
|Rated voltage||200 V, 250 V||400 V, 450 V, 500 V|
|Category temperature range||-25 °C to +85 °C|
|Useful life at +85 °C||5,000 h|
|Max. ESR at 100 Hz||150 mΩ to 3540 mΩ|
|Max. impedance at 10 kHz||105 mΩ to 2930 mΩ|
|Sectional specification||IEC 60384-4/EN130300|
|Climatic category IEC 60038||25/85/56|
Samples and production quantities of the 157 PUM-SI series capacitors are available now, with lead times of 10 to 14 weeks.
Vishay Intertechnology, Inc., a Fortune 1000 Company listed on the NYSE (VSH), is one of the world's largest manufacturers
of discrete semiconductors (diodes, MOSFETs, and infrared optoelectronics) and passive electronic components (resistors, inductors,
and capacitors). These components are used in virtually all types of electronic devices and equipment, in the industrial,
computing, automotive, consumer, telecommunications, military, aerospace, power supplies, and medical markets. Vishay’s product
innovations, successful acquisition strategy, and "one-stop shop" service have made it a global industry leader. Vishay can
be found on the Internet at www.vishay.com.