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Filter connectors endure repeated shock, vibration

Posted: 01 Nov 2007 ?? ?Print Version ?Bookmark and Share

Keywords:filter connector? thermal shock testing?

ITT Electronic Components has tested its Chip on Flex (CoF) filter connector technology to 1,000 cycles of thermal shock from -55C to 125C per MIL-STD-1344. ITT claims the CoF connector is the first military connector to pass 1,000hrs of thermal shock testing.

Compared to the ceramic planar array block capacitor used in conventional filter connectors, the Cannon CoF connector uses a state-of-the-art flexible circuit where individual chip capacitors are surface mounted on a pad adjacent to the feed thru contact. ITT said this has eliminated the stress points that impact performance under shock and vibration by flex mounting the feed thru contacts rather than soldering them directly to the capacitor. The result is a life cycle that is about 20 times better than other filter connectors that typically have life spans of around 50 cycles, said ITT.

The robust connector design is also said to provide superior reliability and protection in harsh environments. In MIL-DTL-38999 configurations, the Chip on Flex connector has passed MIL-STD-1344 and MIL-DTL-38999 Series III testing for mechanical shock, random vibration, humidity and high altitude. The connector features a voltage rating of 200Vdc-120Vac rms 400Hz. Current ratings are 15A, 7.5A and 5A for sizes 16, 20 and 22, respectively. The CoF connector is suitable for high-reliability military, aerospace and industrial applications including integrated avionics, radio and navigation systems, fire control devices, electronic counter measures, satellite communications and data transmitters.

Pricing ranges from $125 to $175 each in quantities of 100. Lead time is from 12 to 14 weeks.

- Gina Roos

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