The new Raychem MTCT high-performance modular rectangular connectors accept standard ARINC 801 LuxCis™ optical termini in a compact, lightweight design. Since many common applications in aerospace and military applications use four optical fibers, the four-position MTCT connector eliminates the need to plug or seal unused contact cavities as would be required with common 12-termini systems. The result is significant space and weight savings.
The connectors are available with either aluminum or corrosion-resistant steel shells, quarter-turn bayonet quick disconnect or jackscrew mating hardware, keying, and a fluorosilicone interfacial seal. An enhanced mating interface ensures optical alignment of the termini. Only commonly available tools are required for installation.
The MTCT connector is based on the popular Raychem MTC product family of compact modular connectors. For high-density application, the MTC family uses a rectangular geometry that saves space compared to circular connectors. The MTCT uses the family's 1-inch shell size.
Hermetically Sealed 50-Amp Relays
The new FCA-150 and FCAC-150 series of relays from Tyco Electronics are designed to perform under the most demanding environmental conditions of temperature, altitude, shock, vibration, and salt spray. Meeting the requirements of Mil-R-6106, the hermetically sealed, non-latching relays offer a 50-A switching capability in a compact package only one cubic inch in size and weighing less than 90 grams. This compact package size offers considerable size and weight savings over other 50-amp devices on the market.
Rated for temperatures from -70° to +125°C and operation to 300,000 feet in high-vibration and high-shock environments, the FCA-150 and FCAC-150 series are available with optional diode for transient protection. The FCAC-150 series offers auxiliary contacts with single-pole, double-throw operation at 2 A. Excellent isolation is maintained between main and auxiliary contacts. All current paths are welded and free of mechanical fasteners for additional robustness.
A polarized, single-side stable design results in appreciably increased contact pressure in both states compared to that of a spring-return non-polar design. The relays are configured as single-pole, single-throw devices with normally open contacts. A choice of three coil voltages is available: 6, 12, and 28 VDC.
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