SOURCE: Vishay Intertechnology, Inc.

Vishay Intertechnology, Inc.

July 08, 2010 11:00 ET

Vishay Extends TANTAMOUNT® Hi-Rel COTS T97 and Industrial-Grade 597D Series to Offer Industry's First Solid Tantalum Chip Capacitors With 75-V Rating

Capacitors Feature Ultra-Low ESR Values Down to 0.015 Ohms in Nine Case Sizes While T97 Devices Offer High-Reliability Screening and Surge Current Testing Options

MALVERN, PA--(Marketwire - July 8, 2010) -  Extending its leadership position in high-voltage solid tantalum chip capacitors, Vishay Intertechnology, Inc. (NYSE: VSH) today announced that the company's TANTAMOUNT® Hi-Rel COTS T97 and commercial, industrial-grade 597D series have been enhanced with an industry-high 75-V rating.

For decades, 50 V had represented the limit for rated voltage capability in solid tantalum chip capacitors. In 2008, Vishay broke through this performance barrier with the introduction of 63-V ratings, and the company now builds upon this patented technology with the introduction of the industry's first 75-V solid tantalum chip capacitors.

With a 75-V rating and capacitance of 10 microfarads in the "R" case size, the T97 and 597D series provide high reliability in circuits with applied voltages between 25 V and 40 V, a performance level that has previously been available only with through-hole technology.

The conformal-coated capacitors with wrap-around terminations feature a dual anode construction to ensure the lowest ESR in their class. The 597D capacitors are optimized for industrial automation and control systems, and the T97 devices are designed for safety-critical applications, such as those found in the military and aerospace industries, including dc-to-dc converters and power distribution in weapons and radar systems, avionics, and space-based electronics. The T97 series offers designers a wide array of ratings not found in available MIL specifications, combining the flexibility and convenience of a commercial product with the reliability needed in demanding applications.

The T97 series offers high-reliability screening options including Weibull grading and surge current testing options in accordance with MIL-PRF-55365. This differentiates these devices from commercial- grade capacitors by featuring the required reliability and surge screening options necessary to ensure performance in Hi-Rel applications while still maintaining a maximum capacitance-voltage product, a figure of merit that measures the amount of energy a capacitor can store, and helps designers choose the best capacitor for their applications.

Part of Vishay's TANTAMOUNT tantalum capacitor family, the T97 and 597D series feature a capacitance range of 10 to 1500 microfarads and a voltage range from 4 to 75 V in nine case sizes, including the "V" case with a low 2-mm profile. The devices offer ultra-low ESR values down to 0.015 ohms at + 25 deg. C and 100 kHz, and high ripple currents to 4.1 A. The capacitors operate over a temperature range of - 55 to + 85 deg. C, to + 125 deg. C with voltage derating.

Samples and production quantities of the new 75-V capacitors are available now, with lead times of eight to 10 weeks for larger orders. Follow TANTAMOUNT capacitors for military applications at

Vishay Intertechnology, Inc., a Fortune 1,000 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

TANTAMOUNT is a registered trademark of Vishay Intertechnology, Inc.

Links to datasheets: (597D) (T97)

Link to product photo (click ALL SIZES for hi-res version):