Vishay introduces new 550 V and 600 V capacitors offering higher ripple current and simplified design for power applications.
Quiver AI Summary
Vishay Intertechnology, Inc. has announced an expansion of its 193 PUR-SI series of miniature snap-in power aluminum electrolytic capacitors, introducing new voltage ratings of 550 V and 600 V. These capacitors provide up to 30% higher ripple current and a longer lifespan compared to standard options, enabling designers to simplify their circuits by using fewer components without the need for voltage balancing resistors. This innovation helps save space on PCBs and reduces bill of materials costs while enhancing reliability and extending capacitor life in high-demand applications. The capacitors are suitable for a variety of uses, including in electric vehicles, industrial equipment, and medical devices. They are available in multiple sizes, with production quantities ready for shipping.
Potential Positives
- The introduction of new voltage ratings of 550 V and 600 V for the 193 PUR-SI series capacitors enhances the product's capability to meet higher DC bus voltages, simplifying design for engineers.
- These capacitors provide up to 30% higher ripple current compared to standard solutions, improving performance in power management applications.
- By reducing the need for multiple capacitors in series and eliminating voltage balancing circuits, the new offerings decrease design complexity, save PCB space, and lower BOM costs.
- The long useful life of 5000 hours at +105 °C ensures reliability for demanding applications and positions Vishay's products as suitable for critical sectors such as automotive and medical equipment.
Potential Negatives
- Extended lead times of 18 weeks for production quantities may hinder customers' ability to quickly procure components, potentially impacting project timelines.
FAQ
What are the new voltage ratings for the 193 PUR-SI series capacitors?
The new voltage ratings for the 193 PUR-SI series are 550 V and 600 V.
How do the 193 PUR-SI capacitors improve design complexity?
The 193 PUR-SI capacitors reduce design complexity by eliminating the need for voltage balancing circuits.
What applications are suitable for the 193 PUR-SI series capacitors?
These capacitors are ideal for switch mode power supplies, battery management systems, and electric vehicle applications.
What is the expected lifespan of the 193 PUR-SI series capacitors?
The capacitors have a useful life of 5000 hours at +105 °C, suitable for over 25 years of operation.
Where can I find samples of the 193 PUR-SI series capacitors?
Samples are available from catalog houses in small quantities, with production quantities available now.
Disclaimer: This is an AI-generated summary of a press release distributed by GlobeNewswire. The model used to summarize this release may make mistakes. See the full release here.
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Full Release
MALVERN, Pa., Jan. 14, 2026 (GLOBE NEWSWIRE) -- Vishay Intertechnology, Inc. (NYSE: VSH) today announced that the company has extended its 193 PUR-SI series of miniature snap-in power aluminum electrolytic capacitors with new voltage ratings of 550 V and 600 V. The Vishay BCcomponents devices deliver up to 30 % higher ripple current than standard solutions in similar case sizes and offer a longer useful life.
Traditionally, designers have used three 400 V to 450 V capacitors in series, with voltage balancing resistors across each device, to handle DC bus voltages up to 1100 V — an approach that adds design complexity and potential failure points. With their higher voltage ratings up to 600 V, the enhanced 193 PUR-SI series devices released today allow designers to achieve this voltage range with fewer components, while eliminating the need for voltage balancing circuits — saving PCB space and reducing BOM costs. In addition, the added voltage headroom extends capacitor lifetimes and enhances overall system reliability.
Designed to withstand the demanding switching currents of today’s high power converters, the 193 PUR-SI series devices handle ripple currents up to 3.27 A. Their long useful life of 5000 hours at +105 °C permits use in demanding applications requiring more than 25 years of operation from capacitors in ambient temperatures up to +60 °C. Featuring a cylindrical aluminum case insulated with a blue sleeve, the devices offer capacitance from 47 µF to 820 µF in 25 compact case sizes ranging from 22 mm x 25 mm to 35 mm x 60 mm. The RoHS-compliant capacitors are also available with 3-pin keyed polarity snap-in terminals for more stable PCB mounting.
As polarized aluminum electrolytic capacitors with a non-solid electrolyte, the devices are ideally suited for smoothing, buffering, and DC-Link filtering in switch mode power supplies; chargers, battery management systems (BMS), and motor controls in electric (EV) and hybrid electric (HEV) vehicles; industrial motor drives and air conditioners; solar inverters; medical equipment; UPS; and welding equipment.
Device Specification Table:
| Case size (D x L in mm) | 22 x 25 to 35 x 60 | |
| Capacitance range | 47 µF to 820 µF | |
| Tolerance | ± 20 % | |
| Rated voltage | 400 V to 450 V | 500 V to 600 V |
| Category temperature range | -40 °C to +105 °C | |
| Useful life at +105 °C | 5000 h | |
| Max. ESR at 100 Hz | 120 mΩ to 3365 mΩ | |
| Max. impedance at 10 kHz | 80 mΩ to 2700 mΩ | |
| Sectional specification | IEC 60384-4 / EN130300 | |
| Climatic category IEC 60038 | 40 / 105 / 56 | 25 / 105 / 56 |
Samples of the extended 193 PUR-SI series capacitors are available from catalog houses in small quantities. Production quantities are available now, with lead times of 18 weeks.
Vishay manufactures one of the world’s largest portfolios of discrete semiconductors and passive electronic components that are essential to innovative designs in the automotive, industrial, computing, consumer, telecommunications, military, aerospace, and medical markets. Serving customers worldwide, Vishay is The DNA of tech. ® Vishay Intertechnology, Inc. is a Fortune 1000 Company listed on the NYSE (VSH). More on Vishay at www.Vishay.com .
The DNA of tech ® is a registered trademark of Vishay Intertechnology, Inc.
Vishay on Facebook:
http://www.facebook.com/VishayIntertechnology
Vishay Twitter feed:
http://twitter.com/vishayindust
Links to product datasheets:
http://www.vishay.com/ppg?28458
(193 PUR-SI)
Link to product photo:
https://www.flickr.com/photos/vishay/albums/72177720331387944
For more information please contact:
Vishay Intertechnology
Peter Henrici, +1 408 567-8400
[email protected]
or
Redpines
Bob Decker, +1 415 409-0233
[email protected]
