Tantamount capacitors
02 February 2010
Vishay has announced a series of Tantamount low-ESR solid tantalum chip capacitors with a built-in fuse.
Offered in three moulded case sizes, the TF3 series is designed to provide a high level of protection against short circuits in safety-critical applications.
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.
With their low ESR down to 0.25 Ω at +25°C and 100kHz, the capacitors are 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.
The 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. They are 100% surge current tested and meet EIA 535BAAC requirements.
Samples and production quantities of the chip capacitors are available now, with lead times of six to eight weeks for larger orders.
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