Conductive Compounds Reduce Static Noise

Connectors Unlimited has worked with RTP Company to formulate and supply plastic materials for a shielding solution for analogue cable and circuit connectors. Several static dissipative and conductive compounds were chosen for the improved static control they provided. 'The fundamental reason for using RTP Company's conductive plastics in our analogue connectors is to minimise noise interference in the electronic signal, which is primarily caused by static charge,' explained Marty Ignasiak, president of Connectors Unlimited.

'By effectively reducing static charges, we're able to improve the signal-to-noise ratio in our connectors and thus upgrade overall performance of devices,' he added. When selecting a supplier of conductive plastic compounds, Connectors Unlimited engineers kept three critical requirements in mind: thermal conductivity, electrical conductivity and structural rigidity. Maintaining dimensional stability of the analogue circuits during manufacturing was a huge concern for their engineers, according to Ignasiak.

Company engineers ended up choosing several different RTP Company conductive compounds that provide varying levels of static protection to circuit connectors. Base resins for the compounds are RTP 300 Series polycarbonate and RTP 3400 Series liquid crystal polymer. To maintain rigidity during assembly that may include soldering processes, glass and carbon fibre reinforcement are utilised along with flame-retardant packages to meet UL94 flammability requirements.

The LCP materials are suitable when components must undergo electronic or solvent cleaning. 'The RTP Company materials we chose maintain excellent stiffness, while at the same time providing an array of static reduction levels, ranging from slightly static dissipating to fully conductive,' said Ignasiak.

Comments

Post a Comment

Popular posts from this blog

What is Class I Division 2?

Image
A Class I Division 2 is a location: (1) In which volatile flammable gases, flammable liquid-produced vapors, or combustible liquid-produced vapors are handled, processed, or used, but in which the liquids, vapors, or gases will normally be confined within closed containers or closed systems from which they can escape only in case of accidental rupture or breakdown of such containers or systems or in case of abnormal operation of equipment, or (2) In which ignitable concentrations of flammable gases, flammable liquid-produced vapors, or combustible liquid-produced vapors are normally prevented by positive mechanical ventilation, and which might become hazardous through failure or abnormal operation of the ventilating equipment. Class I Division 2 Classification Class I Division 2 refers to the ANSI/ISA 12.12.01 standard. This standard was previously UL1604 until UL recommended the newer ANSI/ISA standard be used and that all hazardous location products be certified under this standa
Read more

FUSE SIZING CONSIDERATIONS FOR HIGHER EFFICIENCY MOTORS

Image
When selecting the proper fuse for short circuit protection in motor starting applications, it is important to not only ensure that the fuse will not nuisance open during motor start up times, but also that the fuse will coordinate as required with overload relays. When sizing fuses between 125% and 150% of the motor nameplate current, several advantages, including ease of coordination with an overload device, a smaller disconnect, and increased short circuit protection from a lower fuse rating, can be achieved. However, if sizing at this level prevents the motor from starting, it may then be necessary to increase the fuse ampere rating and it then becomes important to know the NEC sizing limitations. As of June 1, 2016, the US Department of Energy has mandated that newly manufactured electric motors will need to meet NEMA Premium® efficiency standards. As motor efficiencies increase, motor locked rotor currents can also be expected to increase. In addition to this, with across-the-lin
Read more

7/8 16UN Connectors that Provide 600 Volts and 15 Amps

TURCK announces new A-Size 3 and 4-pin 7/8 16UN powerfast™ connectors that provide up to 600 Volts and 15 Amps of power. These IP67 rated connectors provide a modular wiring system designed to handle high current applications for machine power distribution, while providing resistance to vibration commonly associated with conveyors, motors and material handling applications. The cordsets are available with a tray rated, exposed run PVC flexlife ® cable, with or without STOOW rating, and 14 AWG wires that allow you to replace hard wiring with a robust, quick disconnect system that saves the time and money spent installing a conduit system. The A-Size powerfast line offers male and female, straight connectors, standard and custom lengths, and pigtails or extensions. To make the system complete, fully encapsulated mating receptacles, with 1/2”-14 NPT mounting threads are available.
Read more