Wet tantalum capacitor can be used as an exact drop-in replacement

06-06-2022 | Vishay | Passives

To satisfy the requirements of defence and avionics applications, Vishay Intertechnology, Inc has launched a new high energy wet tantalum capacitor that produces the industry's highest capacitance per voltage rating and case size for this type of device. Offered with radial through-hole terminations with a stud mount option in the B and C case codes, the EP2 can be employed as an exact drop-in replacement for competing parts or as a higher capacitance option in a mechanically equivalent package to lower component counts, save space, and decrease design costs.

Built on the company's SuperTan technology, the device provides ultra-high capacitance from 2,700µF to 48,000µF in the B case code and 3,600µF to 72,000µF in the C case code. Voltage ratings for the capacitor range from 25VDC to 125VDC. Its industry-leading values comprise a capacitance of 9,000µF at 80V and 58,000µF at 35V in the C case size. These values are 50% and 21% greater, respectively than those of the closest competing device. The capacitor offers a standard capacitance tolerance of ±20%, with ±10% tolerance available.

Optimised for pulse power and energy hold-up applications in laser guidance, radar, and avionics systems, the EP2 is housed in an all-tantalum, hermetically sealed case for increased reliability. Offering robust mechanical performance, the capacitor features high vibration (high frequency: 20g; random: 19.64g) and mechanical shock (50g) capabilities.

The device functions over a temperature range of -55C to +85C to +125C with voltage derating and offers maximum ESR down to 0.017-Ohm at 1kHz and +25C. The capacitor is provided with tin/lead (Sn/Pb) and RoHS-compliant 100% tin terminations.

By Natasha Shek