By Alix Paultre, contributing editor
Addressing the needs of military and avionics applications, Vishay Intertechnology’s new high-energy wet tantalum capacitor claims the highest capacitance per voltage rating and case size for this device type. For increased design flexibility, the EP1 is available with radial through-hole or surface-mount terminations in the A, B, and C case codes, each with a stud-mount option.
Built on Vishay’s proven SuperTan technology, the device features an ultra-high capacitance range from 2,000 µF to 30,000 µF in the A case and voltage ratings from 25 Vdc to 125 Vdc. The EP1’s industry-leading values include a capacitance of 13,000 µF at 50 V in the A case size, which is 18% greater than the closest competing device. The capacitor features a standard capacitance tolerance of ±20%, with ±10% tolerance available. C case ratings are expected in late 2017, with B case ratings expected in 2018.
Optimized for pulse power and energy hold-up applications in laser guidance, radar, and avionics systems, the EP1 is housed in an all-tantalum, hermetically sealed case for increased reliability. The device operates over a temperature range of –55°C to 85°C, to 125°C with voltage derating, and provides maximum ESR down to 0.030 Ω at 1 kHz and 25°C. The capacitor is available with tin/lead (Sn/Pb) and RoHS-compliant 100% tin terminations. Pricing for U.S. delivery starts at $350 each.
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