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Low-ESR tantalum capacitors target safety-critical apps

Posted: 18 Feb 2010     Print Version  Bookmark and Share

Keywords:tantalum capacitor  data storage  chip 

TF3 TANTAMOUNT capacitors

Vishay Intertechnology Inc. has rolled a series of TANTAMOUNT low-ESR solid tantalum chip capacitors with a built-in fuse. With their low ESR down to 0.25Ω at + 25°C and 100kHz, the TF3 series of capacitors are is designed to provide a very high level of protection against short circuits in safety-critical applications.

Offered in three moulded case sizes, the TF3 series is optimised for high-current applications (>10A) requiring this level of safety, including industrial applications, medical instrumentation, diagnostic and control equipment, high-end computing and data storage, and telecom base stations.

TF3 series devices feature an internal electronic fusing mechanism that activates within 0.1 second with a minimum of 5A applied at +25°C. In the event of a failure due to excessive current flow, this fusing prevents damage to circuit components.

The TF3 devices offer a capacitance range of 0.47µF to 470µF in the C, D, and E case codes. The capacitors provide a high ripple current carrying capability and feature a voltage range from 4V to 50V over an operating temperature range of—55°C to + 125°C.

Compatible with high-volume automatic pick-and-place equipment, the TF3 series features standard RoHS-compliant tin terminations, with Sn/Pb terminations available. The devices are 100 per cent surge current tested and meet EIA 535BAAC requirements.

Samples and production quantities of the new low-ESR TF3 solid tantalum chip capacitors are available now, with lead times of six to eight weeks for larger orders.

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