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.

npPS_Vishay-Tantalum

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.