Passives

Chip capacitors for military and aerospace systems

1st May 2014
Nat Bowers
0

 

Available with high-reliability screening and surge current testing options in accordance with MIL-PRF-55365, Vishay has introduced the T42 series Hi-Rel series of TANTAMOUNT surface-mount solid tantalum molded chip capacitors for military and aerospace applications.

Suited for filtering, decoupling, and energy storage applications in weapons and radar systems, avionics and space-based electronics, the T42 series combines a built-in fuse for fail-safe operation with high capacitance and voltage ratings and low ESR down to 80mΩ at +25°C and 100kHz. To protect against catastrophic failures in these safety-critical applications, the devices' built-in fuse guarantees protection at 5 A for 10 ms and is optimised to ensure activation while avoiding false triggering. The T42 employs a multi-anode "mirror" structure that reduces ESR by at least 50%. Each internal anode within the device has a dedicated fuse, allowing unaffected anodes to maintain capacitance in the unlikely event of a failure. Depending on the application, this fault-tolerant design allows for a degraded mode of operation rather than a complete loss of functionality.

Offered in the M2 case code, T42 series capacitors utilise Vishay's patented leadframeless multi-array packaging (MAP) technology for increased volumetric efficiency. Built on a glass-reinforced resin base, the device eliminates the problematic J-lead construction and associated current-loops, thereby reducing ESL by two thirds that of traditional capacitors. The result is high capacitance of 10-470 μF, with tolerances of ±10 and ±20%, and voltage ratings of 16-75V DC. With higher capacitance than traditional devices, the capacitors reduce the overall component count and simplify designs.

The T42 series offers an operating temperature range from -55 to +85°C (+125°C with voltage derating) and maximum ripple current of 0.7-1.8A. RoHS-compliant, the devices are available with 100% tin or tin/lead terminations. Samples and production quantities of the T42 series are available now, with lead times of 14 weeks for larger orders.

Product Spotlight

Upcoming Events

View all events
Newsletter
Latest global electronics news
© Copyright 2024 Electronic Specifier