Malvern, Pa. Vishay Intertechnology, Inc. has extended its TANTAMOUNT Hi-Rel COTS T97 series, claiming 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, said Vishay. With a 63-V rating and capacitance of 22 uF, the new T97 device in the "F" case size solves this challenge 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.
The T97 series offers a capacitance range of 15 uF to 1500 uF and a voltage range from 4 V to 63 V. It offers ultra-low ESR values, which range from 0.015Ω to 0.30Ω at +25°C and 100 kHz. Devices operate over a temperature range of -55°C to +85°C, +125°C with voltage derating.
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. 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.
Pricing: Starts at $3.10 for U.S. delivery and varies depending on rating and screening options.
Availability: Samples and production quantities are available now, with lead times of 7 to 10 weeks, depending on the level of reliability screening requested.
Datasheet: T97 series
Vishay Intertechnology, www.vishay.com