DDC / North Hills RT500078 Terminator

The DDC / North Hills RT500078 is a 78 ohm terminator engineered for MIL-STD-1553 data bus systems. It has impedance matching and eliminates signal reflections, maintaining signal integrity across the bus. The terminator features a hot-tinned cold rolled steel case with solder sealing, delivering superior environmental, EMI, and corrosion resistance suitable for airborne and test environments. ## Technical Specifications • **Impedance:** 78 ohm
• **Application Standard:** MIL-STD-1553B and Notice 2
• **Common Mode Rejection:** Better than 45 dB
• **Case Material:** Hot-tinned cold rolled steel
• **Sealing Method:** Solder-sealed
• **Enclosure Type:** Box-type, multi-stub series
• **Connector Type:** Compatible with Trompeter PL-75-47 types ## Key Features • Direct plug-in compatibility with North Hills coupler bus ports
• Superior environmental and corrosion protection through solder-sealed construction
• Enhanced EMI shielding for signal fidelity in demanding applications
• Side sleeve marking for clear identification (left/right designation)
• Alternative 70 ohm version available for MIL-STD-1553A systems ## Typical Applications • MIL-STD-1553 avionics data bus test setups and simulation environments
• Lab development and system validation for military airborne platforms
• Integration into complete North Hills test kits combining couplers, cables, and bulkhead jacks ## Compatibility & Integration The RT500078 integrates into MIL-STD-1553B systems and pairs directly with North Hills coupler products. Stub port cabling must not exceed 20 feet in length; cable runs should be sized only as long as mechanically necessary to minimize reflections and maintain impedance continuity. The terminator operates as part of the multi-stub architecture supporting distributed bus topologies in test and operational configurations.