ADVERTORIAL TECHNOLOGY IN ACTION
Kemtron Introduce a new soft
orientated perpendicular to its surface. Excellent RFI/EMI/EMP shielding performance is achieved as the material has a wire density of up to 140 wires/ CM2 in solid silicone providing an environmental and RFI/ EMI seal when clamped between two metallic surfaces. These wires are crimped to aid compression and are chemically bonded to ensure their retention. They will also penetrate most light oxide layers, ensuring a low contact resistance path when suitably compressed. For applications with severe joint unevenness, low closure forces , and where greater compressibility is required, Kemtron have developed new grades 470/480 of material to fulfil a need that meets the performance of our oriented wire in silicone sponge but with improved environmental sealing qualities. We have achieved this by using a very soft solid silicone with a reduced wire count of 100 wires per cm2 the same as our silicone sponge. The advantages of these materials over silicone sponge are that we can manufacture sheet widths of 225mm with a minimum thickness of 0.8mm. Material consistency is a great advantage over silicone sponge as there is no uneven cell structure to consider that affects moisture ingress and closure force.
silicone flat EMI gasket material A
flat, sheet material, comprising a solid silicone rubber, embedded with Monel or Aluminium metal wires
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Kemtron Ltd u 01376 348115 u
www.kemtron.co.uk
Riedon expands high-power wirewound portfolio
iedon is expanding its extensive line of high-power wirewound resistors, with a new series of rugged metal-clad braking resistors that deliver high levels of performance and a reduction in the need for heatsinking.
The devices target a range of industrial and other commercial applications including motor drives, power conversion systems, HVAC systems and battery charging and monitoring applications.
Encased in aluminum, the new BR series offers power ratings from 60 to 500W and is available in three different mechanical constructions. Highly durable and rugged components, they provide improved heat transfer and short- circuit performance. They are also significantly less sensitive to heatsink requirements than a comparable TO- packaged device of a similar power rating, many of which may require a cold plate to operate at the same rated power.
The BR series’ high level of performance is largely due to the use of ceramic cores rather than fiberglass: ceramic delivers benefits over fiberglass in efficiency by dealing with heat more effectively with overload and current surge events. Although ceramic is traditionally a more expensive solution, the new series is highly competitive, thereby delivering an excellent performance/price option for industrial power designers and engineers.
Available in flat (BR) or tall (BRT) series versions, other features include: a resistance range from 0.1Ω to 1kΩ; tolerances of 1%, 5% and 10%, making the series suitable for a range of applications; a withstand voltage of 2500V AC; good long-term stability with a TCR of less than ±260ppm maximum; quick-connect terminations; and an operating temperature range from –55 to +200°C.
In addition, the BRS series is now available, which is an ultra-slim 12mm-high profile variant that offers power ratings from 100 to 500 watts and a resistance range from 1Ω to 5kΩ.
Riedon u +1 (626) 284-9901
Series 82 illuminated pushbutton – New stainless steel 316L version.
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eliably protected against corrosion and alkaline cleaning agents. The main function of strong alkaline-
based cleaning agents in the food and pharmaceutical industries is to remove organic contaminants, so that bacterial and fungal growth is prevented. This ensures that, food and medical products do not become contaminated. The equipment, machines and control units used in these industries must be able to withstand these types of cleaning agents. EAO is now offering a new stainless steel version for illuminated pushbuttons of Series 82, which has been developed with this in mind.
Advantages
• High quality stainless steel 316L • Protected against corrosion • Resistant to all alkaline cleaning agents
• Robust Tritan plastic ring illumination
• 22 mm standard versions available
The new metal fronts made from stainless steel 316L offer exceptional protection against corrosion. The illuminated versions are equipped with a robust Tritan plastic illumination ring. The 316L version is also suitable for marine applications, because the pushbutton is resistant to salt water.
EAO 38 JUNE 2019 | ELECTRONICS u 01444 236 000 u
www.eao.co.uk u
www.riedon.com
No set up fee, no MOQ customisation service from BCL Enclosures
offered by BCL Enclosures, the specialist UK manufacturer of standard and custom plastic enclosures. The company prides itself on the breadth of its standard product range, which it is then able to customise to suit virtually any application. “We have a great deal of experience and many satisfied
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customers using our customisation service on an ongoing basis, and it is cost-effective even on large order quantities. This is evidenced by the volume of repeat business we handle. ” says Sales Manager, Mandy Thompson. “We take care to get the samples right, and sometimes this can involve asking detailed questions at the initial design stage, but we are passionate about what we do and invest the time upfront to get the right result.”
BCL Enclosures u 01423 879787 u
www.bclenclosures.com
CONNECTINGINDUSTRY.COM/ELECTRONICS
specialist customisation service for ABS enclosures with no minimum order quantities or set up fee is
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