Browse Categories
PayPal Accept credit cards with QuickBooks Payments
Mailing Lists

Technical Blog

An Update About Daburn Electronics and Polytron Devices Operations During COVID-19
Published Friday, 24 April 2020 4:40 PM

Daburn Electronics and its Polytron Devices division would like to update you on our response to COVID-19. As a supplier to critical industries, we remain open during our normal business hours and are maintaining our normal shipping hours. 

Our management team has been monitoring the situation and adjusting operations so we can continue to ship and fulfill orders with minimal disruption. The company communicates constantly with our raw material suppliers to maintain the inventories necessary to satisfy customer demand. Most importantly, we are taking action to mitigate the spread of the virus to ensure the health and safety of our employees. Our measures include: 

  • Following CDC guidelines as we conduct our business.
  • Elevating cleaning and sanitation activities in our facilities.
  • Increasing employee engagement and communicating any risks that require preventative actions. 

The coronavirus situation is changing on a constant basis, and we will continue to stay on top of the events to ensure the safety of our employees and their families. As long as conditions allow, Daburn Electronics and Polytron Devices are doing everything necessary to ensure customers in critical industries receive the components they need so they can carry out their vital work.

To contact our sales and customer service staff, visit our Contact Us page.


Ultra-flexible Miniature Cables Offer Good Flexibility to Satisfy Space-constrained Designs

Published: Monday, 20 April 2020 4:30 PM

When it comes to flexible cable, the first thought that comes to mind may be large cable carriers or large robots in an automated manufacturing environment. However, an increasing need for repetitive motion in smaller devices is challenging designers across industries as diverse as military, consumer, computers and IT, telecom, biomedical and medical. Not only must cables in small devices provide good flexibility over many cycles, they also have to provide an ultra-tight bending radius. Recently ultra-flexible cables have become an attractive option, allowing engineers designing devices as small as a wristwatch to realize the benefits of flexible cables. Here’s what to look for when selecting flexible cables for your space-constrained design:

  • Miniature size. Smaller AWG sizes and diameters than conventional flexible cables.
  • Flexible conductor. Fine wire copper conductors that tolerate flex cycles in the millions.
  • High strand count. When more fine wire strands absorb bending stress, the entire conductor is subject to less strain.
  • Flexible insulation. Silicone rubber offers the most desirable flexibility among insulation materials, followed by flexible formulations of PVC, and thinly insulated FEP and PTFE. 
  • Durability. Cables should withstand harsh conditions such as chemicals, abrasion, moisture and flames to operate over a long lifetime.
  • High temperature resistance. Various flexible cable applications, such as medical, may require resistance to high temperatures.  

Daburn Electronics’ DAFLEX ultra-flexible miniature cables combine small AWG sizes and wire diameters with high strand-count copper conductors that stand up to the stress of repetitive flexing. With sizes down to 42 AWG and several cable options within the family, reliable, long-lasting cable can be designed into miniature-size devices. Available conductors include bare, tinned, and silver plated copper, and DaflexAlloy14 — a high-strength copper alloy. The series also offers various insulation and jacketing choices to address environmental challenges like flexibility in low temperatures and resistance to chemicals, abrasion, moisture and flames. Among the insulators, silicone rubber is popular thanks to its high flexibility and lower cost, while FEP’s non-toxicity makes it appropriate for biomedical applications. FEP’s lubricity also helps designers route the cables into tight spaces. There’s a DAFLEX ultra-flexible miniature cable type that can satisfy your application needs:

RoHS-compliant DAFLEX ultra-miniature flexible cables are available in a variety of AWG sizes and thin wire diameters with voltages from 70 to 600V. Special custom designs can be quoted, mixing AWGs within a cable or twisted pair configurations.

When selecting flexible cables for your space-constrained design, be sure to choose from a lineup of miniature cables that offers a wide array of options to satisfy the unique requirements of a broad range of applications. Daburn Electronics’ DAFLEX ultra-flexible miniature cables come in small diameters, exhibit tight bending radii, stand up to high flexing cycles and resist harsh conditions to satisfy the needs of most any application.

For more information about Daburn Electronics’ DAFLEX ultra-flexible miniature cables, visit the product page:   DAFLEX Ultra-Flexible Miniature Cables   


How to Make Reliable Ethernet Connections Using RJ45 Jacks With Magnetic Modules

Published: Friday, 25 September 2020  

The RJ45 connector is the most widely used connector type—enabling Ethernet networking across a wide spectrum of devices from routers, switches, VDSL digital equipment, network set-top boxes, PCBs and other home and commercial hardware. When transferring signals across Ethernet devices, your connection must incorporate magnetics to protect against electromagnetic interference (EMI) and common mode signals and meet Base-T isolation requirements.

RJ45 Magnetic Component Advantages Versus Discretes

One of the most common ways to make the connection while meeting the Ethernet standard is to integrate magnetics with an RJ45 jack. While it’s possible to create an all-discrete design, RJ45 jacks with magnetic modules—also known as integrated connector modules, or ICMs—offer clear benefits.

Here are just some of the advantages of using RJ45 jack and connector modules for your Ethernet devices:

  • Broad acceptance. ICMs are appropriate for a wide range of Ethernet systems.

  • Less design effort. Because the magnetics are integrated into the jack, they can be added to a design more quickly and easily than separate, discrete components.

  • Space savings. The total package with integrated magnetics is typically the same size as the connector itself. The modules also reduce the amount of discrete components required for the design, which lowers space requirements, component count and assembly costs.

  • Efficiency gains. In addition to a quicker design process, the reduced component count also speeds up manufacturing.

Considerations for Selecting an RJ45 Jack With Integrated Module
ICMs have one potential design concern: the tightly arranged copper components within the module can create crosstalk, so be sure to look for an RJ45 magnetic module with good shielding. RJ45 magnetic modules for Power over Ethernet (PoE) applications must also handle higher currents and offer stronger isolation capability.

We offer integrated RJ45 jack and connector modules with shielding to satisfy a variety of Ethernet-enabled devices. The RJ45 products can be applied to various transport requirements, such as 10Base, 10/100Base, 1000Base (1G), 10G and PoE. Highlights of the lineup include:

  • 12F/14F-1X Series. This 10BASE-T RJ45 jack and magnetic module’s integrated filter is the same size as the RJ45 connector, saving PCB space while reducing EMI radiation and improving EMI performance.

  • 13F/6X Series. Designed for 100BASE-T transmission over UTP-5 cable, this RJ45 jack and magnetic module series offers designs to support every PHY. It also meets or exceeds IEEE 802.3 and ANSI X.3263 standards.

  • 13F-67 Series (PoE and PoE+). This version of the 13F/6X Series is designed to provide the higher current and isolation required for PoE applications.

Make Your Ethernet Connections Fast and Reliable
A wide range of Ethernet-enabled devices across industries have one thing in common: RJ45 technology. To meet the prevailing Ethernet standards for isolation, the connection must include magnetics. RJ45 jacks with integrated modules can meet Ethernet connection needs while speeding up design and manufacturing time and saving PCB space.

Our RJ45 magnetic modules provide various transmission speeds and design options to ensure fast, reliable signal transmission for any Ethernet networked device.

For more information about Daburn-Polytron RJ45 jacks with integrated modules, visit our product page:  RJ45 Magnetics.