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Vishay Extends Hi-Rel COTS T97 Series to Offer Industry’s First Solid Tantalum Chip Capacitor With 63-V Rating and 22-μF Capacitance
Series Offers High-Reliability Screening and Surge Current Testing Options With ESR Values Down to 0.015 Ω in Five Case Sizes
MALVERN, PENNSYLVANIA — Aug. 8, 2008 — Vishay Intertechnology, Inc. (NYSE: VSH) today announced that has extended its TANTAMOUNT® Hi-Rel COTS T97 series to offer the industry’s first solid tantalum chip capacitor with a 63-V rating to meet derating requirements in +28-V power supply designs.
Lacking alternatives for +28-V applications, until now designers have been forced to rely on 50-V tantalum capacitors, which are unable to meet derating requirements (both military and best-commercial-practices) of 50 % of the rated voltage. With a 63-V rating and capacitance of 22 μF, the new T97 device in the "F" case size solves this long-standing issue by allowing designers to incorporate solid surface-mount tantalum capacitors into their +28-V power supply designs while fully complying with derating requirements. In addition to the T97 Hi-Rel series, these ratings are also available in a commercial version, the 597D series.
Featuring a dual anode construction to ensure the lowest ESR in its class, the T97 series is 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 devices offer 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.
These conformal-coated capacitors with wrap-around terminations offer high-reliability screening options including Weibull grading, and surge current testing options in accordance with MIL-PRF-55365 in five case sizes. This differentiates T97 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 series has a capacitance range of 15 μF to 1500 μF and a voltage range from 4 V to 63 V. It offers ultra-low ESR values, which range from 0.015 Ω to 0.30 Ω at +25 °C and 100 kHz. Devices in the T97 series operate over a temperature range of −55 °C to +85 °C, +125 °C with voltage derating.
Samples and production quantities of the new 63-V T97 are available now, with lead times of 7 to 10 weeks, depending on the level of reliability screening requested.
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.
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