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/Categories/Connectors Interconnects/Circular Connector Adapters

Circular Connector Adapters

93 products

In real hardware assemblies, PCBs rarely operate in isolation. Power, signals, and communication lines must move between boards, external modules, and system backplanes. If connections rely on loose wiring or non-standard interfaces, they can introduce signal loss, mechanical instability, and assembly variation. Over time, vibration, temperature cycling, and repeated servicing can weaken these connections. Board connectors solve this by providing a structured, repeatable electrical interface directly on the PCB.

ImagePart Number / ManufacturerDescription / SpecsMOQDatasheetRFQ
1300390377
1300390377
Manufacturer: Molex
Category: Circular Connector Adapters
DEVICENET AUX PWR 4 PORT MPIS
1
1300390359
1300390359
Manufacturer: Molex
Category: Circular Connector Adapters
MC 6P MSPG 5-6 JPD BLK TERMIN
1
1300390358
1300390358
Manufacturer: Molex
Category: Circular Connector Adapters
MC 6P MSPG 1-6 JMPD TERMINATOR
1
1300390342
1300390342
Manufacturer: Molex
Category: Circular Connector Adapters
MC 5P TEE MICRO DROP SST
1
1300350115
1300350115
Manufacturer: Molex
Category: Circular Connector Adapters
DEVICENET 4P AUX POWER TEE BLACK
1
1300350114
1300350114
Manufacturer: Molex
Category: Circular Connector Adapters
MINI-CHANGE 2-POLE TEE
1
1300350096
1300350096
Manufacturer: Molex
Category: Circular Connector Adapters
MC DNET 2-WAY BUS PWR TEE
1
1300350081
1300350081
Manufacturer: Molex
Category: Circular Connector Adapters
EMERGENCY STOP & AUX.POWER TEE
1
1300350076
1300350076
Manufacturer: Molex
Category: Circular Connector Adapters
MC 5P TEE MICRO DROP SST
1
1300350067
1300350067
Manufacturer: Molex
Category: Circular Connector Adapters
MC DEVICENET SEGMETED PWR TEE
1
1300350066
1300350066
Manufacturer: Molex
Category: Circular Connector Adapters
MC 5P TEE PASSIVE
1
1300350063
1300350063
Manufacturer: Molex
Category: Circular Connector Adapters
MC 5P TEE PASSIVE 316 SS
1
1300350030
1300350030
Manufacturer: Molex
Category: Circular Connector Adapters
MC 6P ESTOP-IN TEE SPCL RED
1
1300180204
1300180204
Manufacturer: Molex
Category: Circular Connector Adapters
MC 2P MF 90DEG ADAPTER
1
1200680050
1200680050
Manufacturer: Molex
Category: Circular Connector Adapters
MIC 5P/5W AC SPLT ST/FP'S
1
1200680044
1200680044
Manufacturer: Molex
Category: Circular Connector Adapters
MIC 5P/5W AC SPLT ST/FP'S 1FT
1
1200680028
1200680028
Manufacturer: Molex
Category: Circular Connector Adapters
MC/MIC 3P FP/M/MP ST/ST 18/2PU
1
0848569105
0848569105
Manufacturer: Molex
Category: Circular Connector Adapters
NMEA MINI, 5/C, M/F/F WITH M12 D
1
500-303T-W05
500-303T-W05
Manufacturer: CNC Tech
Category: Circular Connector Adapters
CONN T-ADPT 5P-5/5P M-F/F INLINE
1
1410630
1410630
Manufacturer: Phoenix Contact
Category: Circular Connector Adapters
CONN Y-ADPT 8P-4/4P M-F/M INLINE
1
Showing 1-20 of 93 results

Applications of Board Connectors

  • Industrial automation control boards and expansion modules
  • Embedded processor and carrier board connections
  • Automotive electronic control units and subsystems
  • Telecom and networking equipment backplane connections
  • Medical electronics and diagnostic equipment
  • Consumer electronics with modular PCB assemblies
  • Data acquisition and signal interface modules

Key Technical Specifications

  • Contact pitch and pin count
  • Current and voltage rating
  • Signal integrity and impedance characteristics
  • Mechanical retention and locking method
  • Connector mating cycle life
  • Operating temperature and environmental rating
  • PCB mounting style and soldering method

Types of Board Connectors

  • Board-to-board connectors
  • Wire-to-board connectors
  • Backplane connectors
  • High-speed signal board connectors
  • High-current power board connectors

Lifecycle and Replacement Considerations

Board connectors are usually selected early during PCB layout and mechanical design because board spacing, signal routing, and enclosure design depend on them. When a connector reaches end-of-life, finding a drop-in replacement can be difficult. Differences in footprint, height, or pin layout may require PCB redesign and mechanical validation.

This is common in industrial automation, telecom infrastructure, and embedded computing equipment where products remain in operation for many years. Maintenance teams often require the same board connector to maintain compatibility with installed hardware without redesign.

Delays in sourcing compatible board connectors can result in production delays, increased maintenance costs, and system downtime in field deployments.

Maketronics assists global engineering and procurement teams with reliable sourcing of both active and obsolete Board Connectors.

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FAQs

What are board connectors?

Board connectors are electrical connectors mounted on PCBs that enable power, signal, and data transfer between boards, cables, or system modules.

Why are board connectors important in PCB design?

They provide reliable electrical connections, improve assembly consistency, maintain signal integrity, and support modular product architecture.

Where are board connectors commonly used?

They are widely used in industrial automation, telecom equipment, automotive electronics, medical devices, and modular embedded systems.

What should be checked when replacing a board connector?

Verify footprint compatibility, pitch, height, pin layout, current rating, and mechanical locking features to ensure a proper fit and reliable performance.