mobile | classic
Dataweek Electronics & Communications Technology Magazine





Follow us on:
Follow us on Facebook Share via Twitter Share via LinkedIn


Search...

Electronics Buyers' Guide

Electronics Manufacturing & Production Handbook 2019


 

Receptacle carriers promote efficient assembly
8 April 2015, Interconnection

A receptacle carrier is a convenient way to pick up and place individual sockets (receptacles) as a group. It is essentially an assembly fixture having an array of protruding pins onto which individual receptacles are pushed. The receptacles are held in place by their internal spring contacts.

The carrier assembly is placed into a corresponding group of holes on a circuit board, and the carrier holds the receptacles in position during the wave or reflow soldering cycle. The carrier is then removed after soldering, leaving behind a group of receptacles to be used as a socket for a leaded component.

Many formats of carrier are available to match the footprint of the device being socketed, e.g. DIP, SIP, PGA, DC-DC converter, custom etc. Carriers can be categorised as three types:

1. Reusable carriers having a moulded plastic or machined epoxy frame with durable metal carrier pins. The carrier pins are machined from brass and nickel plated. The nickel plating is passivated (oxidised) to make it ‘non-stick’ to solder. All standard component footprints are available, and this type of construction is readily adapted for custom footprints.

2. Disposable metal carriers are one-piece stamped brass or aluminium lead frames used for DIP and SIP IC footprints.

3. Disposable plastic carriers are one-piece injection moulded frames with integral plastic posts to hold the receptacles.

Cost savings are available when Type 1 carriers are returned to the factory for reloading.

The benefits of using receptacle carriers include the convenience over placing individual sockets on a circuit board by hand with a pair of tweezers. At the other extreme, they do not require the expense of building a fully automatic assembly machine with a programmable X-Y table.

Using a receptacle carrier eliminates the insulator of a traditional socket. For high-speed circuitry, this results in a shorter electrical path (lower inductance) and reduced propagation delay (no socket dielectric). Elimination of the insulator also provides a lower socket profile. This is important for handheld devices such as mobile phones and PDAs, where space is at a premium and sockets are required for components that cannot go through reflow, i.e. speakers and microphones.

Receptacle carriers are also ideal for socketing DC-DC converters. One carrier can place the two different sizes of receptacle required by the power and control pins, while the receptacles themselves add very little to the height of the converter.

Carriers are used primarily for wave soldering receptacles into plated through-holes. The added weight of the carrier holds down the components as the circuit board passes over the solder wave. They are also used for surface mount assembly; this technique is called intrusive reflow. The carrier assembly is placed into plated through-holes on the circuit board, and solder paste adjacent to the holes is then reflowed before the carrier is removed.

Anatomy of a receptacle

Receptacles are discrete sockets used for plugging leaded components into printed circuit boards. They are made by press-fitting a stamped beryllium copper spring contact into a precision-machined housing. Pre-tooled are 35 sizes of contacts (3, 4 or 6 finger) to accept pins ranging in diameter from 12 mil to 102 mil, as well as square and rectangular component leads.

Heat-treated beryllium copper is the best choice of spring material to assure contact reliability. The receptacle’s two-piece construction provides the advantage of selective plating when a gold-plated contact is installed in a tin-plated housing.


Credit(s)
Supplied By: Spectrum Concepts
Tel: +27 11 425 1400
Fax: 086 520 5995
Email: sales@spectrumconcepts.co.za
www: www.spectrumconcepts.co.za
  Share on Facebook Share via Twitter Share via LinkedIn    

Further reading:

  • Solderless PCB connectors
    27 February 2019, TRX Electronics, Interconnection
    Amphenol SV Microwave’s LiteTouch solderless PCB connectors offer a complete line of high-frequency coaxial/surface-mount PCB connectors that meet the industry’s need for high performing, highly reliable ...
  • Secure locking coax connector
    27 February 2019, MB Silicon Systems, Interconnection
    Gradconn has extended its coaxial cable assembly range by introducing the I-PEX MHF I LK micro connector. This option can now be specified on assemblies to connect antennas to wireless modules and other ...
  • Millimetre-wave end launch connectors
    27 February 2019, RF Design, Interconnection
    Pasternack has launched a new extended series of millimetre-wave, removable, end launch PCB connectors that are ideal for SERDES applications like high-speed networking, cloud servers and supercomputing. ...
  • Industrial bayonet lock connector
    27 February 2019, Otto Marketing, Interconnection
    Hirose Electric’s new robust, lightweight EM30M circular connector series is designed for connecting wind power generation systems, medical equipment and factory automation machinery applications. The ...
  • Reverse fix screw-lock connectors
    27 February 2019, TRX Electronics, Interconnection
    New reverse fix Gecko-SL connectors from Harwin give design engineers additional options and flexibility by allowing the exact choice of male/female fixing combinations. This is particularly useful in ...
  • Environmentally resistant circular connectors
    30 January 2019, TRX Electronics, Interconnection
    TTI is stocking a broad selection of ITT Cannon’s Trident Neptune metal connectors. The Trident series is a versatile range of electrical connectors with fully interchangeable contacts, designed to perform ...
  • Board-to-board coax connectors
    30 January 2019, Actum Electronics, Interconnection
    The Rosenberger SMP spectrum contains an innovative coaxial series of PCB connectors to enable multifunctional board-to-board connections. The latest innovation in this family, the SMP Infinity connector ...
  • In-line power connectors
    30 January 2019, Otto Marketing, Interconnection
    Hirose has introduced the EF1 series to meet the requirement for smaller yet higher-performing power connectors for industrial applications. The EF1 series consists of a DIN-rail mount type in-line receptacle ...
  • Industrial Ethernet interface
    14 November 2018, RS Components (SA), Interconnection
    Harting’s ix Industrial range of Ethernet interfaces set a high standard for Ethernet interfaces and respond to the future challenges posed by Industry 4.0 and the IoT (Internet of Things). The interface ...
  • Screw fixing connectors
    14 November 2018, TRX Electronics, Interconnection
    Harwin’s Gecko range was expanded to include screw fixings variations, known as Gecko Screw-Lok (or Gecko-SL). Developed to meet customer demand, the series features ruggedised screw fixings for increased ...
  • Power contacts for 2 mm pitch connectors
    14 November 2018, TRX Electronics, Interconnection
    Harwin has announced the introduction of a new female contact for its Datamate connectors that enables significant increases in power delivery levels to be realised. Utilising a unique, proprietary 6-finger ...
  • 10 Gbps backplane Ethernet connectors
    14 November 2018, RS Components (SA), Interconnection
    RS Components has introduced the Hirose ER8 series of 0,8 mm board-to-board connectors for industrial and medical applications. ER8 series PCB connectors combine rugged construction with high-speed transmission ...

 
 
         
Contact:
Technews Publishing (Pty) Ltd
1st Floor, Stabilitas House
265 Kent Ave, Randburg, 2194
South Africa
Publications by Technews
Dataweek Electronics & Communications Technology
Electronic Buyers Guide (EBG)

Hi-Tech Security Solutions
Hi-Tech Security Business Directory

Motion Control in Southern Africa
Motion Control Buyers’ Guide (MCBG)

South African Instrumentation & Control
South African Instrumentation & Control Buyers’ Guide (IBG)
Other
Terms & conditions of use, including privacy policy
PAIA Manual





 

         
    Classic | Mobile

Copyright © Technews Publishing (Pty) Ltd. All rights reserved.