DPXBMA-A106-33P-03-F0 – ITT Cannon DPX Series ARINC Connector
Available now for order through the Aerospace and Avionics Interconnect Marketplace.
Overview Section
The DPXBMA-A106-33P-03-F0 is a high-density, blind-mate rectangular connector from the ITT Cannon DPX series (distributed by PEI-Genesis). This connector is a staple of the aerospace industry, specifically designed for ARINC 404 applications where avionics units must be "slid" into a rack and mated automatically without the technician being able to see or manually align the connection.
The part number identifies a DPXB (Single-shell) configuration with a high-density 106-contact insert. The "33P" indicates a plug arrangement with pin contacts, and the "F0" suffix signifies that the connector is supplied without contacts, allowing for custom crimp termination based on the specific wire gauges required for the aircraft’s mission system.
Key Features Section
Blind-Mate Architecture: Features guide pins and a floating mounting design to compensate for misalignment when an avionics box is pushed into a rack.
106-Contact High Density: Provides a massive amount of signal and low-power throughput in a compact rectangular footprint.
Crimp Termination: Designed for removable crimp contacts, facilitating easier field repairs and allowing for selective loading of circuits.
Environmental Resistance: The "MA" (Little Caesar) contact retention assembly provides superior environmental sealing and high-vibration stability.
Standardized ARINC 404 Fitment: Ensures total compatibility with industry-standard avionics racks and trays used in commercial and military aircraft.
Polarization System: Utilizes a programmable polarization post system to prevent the "cross-mating" of incorrect avionics units into the same rack slot.
Technical Specifications Section
Part Number: DPXBMA-A106-33P-03-F0
Manufacturer: ITT Cannon / PEI-Genesis
Series: DPX (ARINC 404)
Shell Style: DPXB (Single Shell, Rectangular)
Insert Arrangement: A106 (106 Contacts)
Contact Gender: Pin (P)
Modification Code: 03 (Standard mounting/hardware variation)
Contact Status: F0 (Contacts not included)
Shell Material: Aluminum Alloy with Cadmium or Zinc plating.
Operating Temperature: -65°C to +125°C.
Applications Section
Avionics Rack Integration: Connecting Flight Management Systems (FMS), VHF radios, and Transponders to the aircraft's main wiring bus.
Black Box Interfaces: The primary interface for Flight Data Recorders (FDR) and Cockpit Voice Recorders (CVR).
Radar and Navigation Units: High-density signal routing for weather radar and GPS sensor units.
Military Mission Computers: Ruggedized data links for tactical processing units in fixed-wing and rotary aircraft.
Why Choose the DPXBMA-A106-33P-03-F0?
The DPXBMA-A106-33P-03-F0 is the industry standard for high-reliability rack-and-panel interconnects. In the aerospace environment, a connector must withstand decades of vibration and temperature cycling without a single signal drop. The "Little Caesar" (MA) contact retention system used in this unit is world-renowned for its ability to lock contacts in place even under extreme G-loads. Choosing this ITT Cannon assembly ensures that your avionics suite remains fully integrated and maintains its airworthiness certification through a proven, standardized interface.
For the DPXBMA-A106-33P-03-F0, precision polarization is critical. The "03" modification code refers to the hardware used to mount the connector to the tray. Technicians must ensure the polarization posts are set to the correct position (indicated in the aircraft's wiring diagram) before installation. Because this is an F0 (no contacts) unit, you will need to procure the correct size 22 crimp contacts (typically M39029/11-144 or equivalent) and use a high-quality M22520/2-01 crimp tool with the appropriate positioner to ensure signal integrity.