Snap-In Power Aluminum Capacitors have rated voltage of 500 V.

Press Release Summary:

Designed for solar PV inverters, industrial motor controls, and power supplies, 159 PUL-SI series feature ripple current from 0.48–to 2.80 A at 120 Hz and +105°C. Cylindrical aluminum case comes in 22 x 25 mm to 35 x 60 mm sizes and features pressure relief valve and insulating blue sleeve. At 500 V, devices feature max operating temperature of +105°C and useful life of >3,000 hr. Capacitance range is 56–1,800 µF, and max ESR is down to 150 mΩ at 100 Hz.

Original Press Release:

Vishay Intertechnology Extends 159 PUL-SI Snap-in Power Aluminum Capacitors With Rated Voltage to 500 V at +105°C

Devices Offer High Ripple Current to 2.80 A Over Full Lifetime for Solar Inverter and Industrial Motor Control Applications

MALVERN, Pa. — Vishay Intertechnology, Inc. (NYSE: VSH) today announced that it has extended its 159 PUL-SI series of snap-in power aluminum capacitors to a high rated voltage of 500 V at +105 °C. Designed for solar PV inverters, industrial motor controls, and power supplies, the enhanced devices feature a long useful life, high ripple current to 2.80 A and +105 °C, and max. ESR down to 150 mΩ at 100 Hz.

Featuring a cylindrical aluminum case with a pressure relief valve, insulated with a blue sleeve, the new Vishay BCcomponents snap-in capacitors released today are available in a variety of case sizes ranging from 22 x 25 mm to 35 x 60 mm. At 500 V, the devices feature a maximum operating temperature to +105 °C and useful life of >3,000 hours.

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 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


± 20 %

Ripple current at 120 Hz and + 105 °C

0.48 A to 2.80 A

Rated voltage

200 V to 450 V

500 V

Category temperature range

-25 °C to +105 °C

Useful life at +105 °C

5,000 hours

3,000 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


Samples and production quantities of the 159 PUL-SI series capacitors are available now, with lead times of 10 to 12 weeks. Pricing for U.S. delivery depends on type and quantity and ranges from $1 to $10 per piece.

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

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