Wet tantalum capacitor is mechanically robust for hi-rel systems
Able to be used as a drop-in replacement or as a higher capacitance alternative in military and avionics applications, a high energy wet tantalum capacitor by Vishay Intertechnology is claimed to deliver the industry’s highest capacitance per voltage rating and case size for this device type. The EP2 is available with radial through-hole terminations with a stud mount option in the B and C case codes.
It can be used as a drop-in replacement for competing parts or as a higher capacitance alternative in a mechanically equivalent package to reduce component counts, save space and lower design costs.
The capacitor is built on Vishay’s SuperTan technology for capacitance ranging from 2,700 to 48,000 microF in the B case code and 3,600 to 72,000 microF in the C case code. Voltage ratings are from 25 to 125V DC. Capacitance is up to 9,000 microF at 80V and 58,000 microF at 35V in the C case size, which is 50 and 21 per cent greater, respectively, than those of the closest competing device, said Vishay. The capacitor features a standard capacitance tolerance of ± 20 per cent with ± 10 per cent tolerance available.
The EP2 is optimised for pulse power and energy hold-up applications in laser guidance, radar, and avionics systems, Vishay recommended. It is housed in an all-tantalum, hermetically sealed case for increased reliability. Robust mechanical performance parameters are high vibration (high frequency: 20 g; random: 19.64 g) and mechanical shock (50 g) capabilities.
The device operates over a temperature range of -55 to +85 degrees C, to +125 degrees C with voltage derating. Maximum ESR is down to 0.017 Ohm at 1.0kHz and +25 degrees C. The capacitor is available with tin / lead (Sn / Pb) and RoHS-compliant 100 per cent tin terminations.
Samples and production quantities of the EP2 are available now, with lead times of 16 weeks for larger orders.
Vishay claims to manufacture one of the world’s largest portfolios of discrete semiconductors and passive electronic components for innovative designs in the automotive, industrial, computing, consumer, telecommunications, military, aerospace and medical markets.
