A new range of bolt-on and clip-on heat sinks from leading manufacturer Fischer Elektronik is now available from Rapid Electronics, providing an extensive range of thermal management solutions.

This high performance hardware has been designed for optimum cooling of devices in TO-220, SOT-32 and TO-3P semiconductor packages. Made from aluminium, giving high thermal conductivity and optimum device contact, their black anodised finish increases radiative heat loss to maximise efficiency. As a further efficiency measure, the clip-on types have been designed so that the cooling fingers form spring clamps, pushing the component and its mounting flange onto the heatsink where, due to the constant pressure on the entire contact surface, effective thermal management is achieved.

With both bolt on and clip on fixing configurations, with and without solder pins, these Fischer Elektronik heat sinks can be both vertically and horizontally mounted. Also available are D-PAK compatible copper-based heat sinks with a solderable surface, which can be directly mounted on to a PCB.

The heat sinks are just part of the range of Fischer Elektronik semiconductor cooling devices offered by Rapid, including other types of semiconductor mounting hardware, thermal compounds, component mounting kits and spring mounting clips.
Richard Philpot, semiconductor product manager at Rapid, said: ‘We are delighted to be able to distribute this range of premium Fischer Elektronik products. Fischer is a world leading component cooling specialist and we look forward to adding more of their heat sink ranges in the future.’

Rapid can support customers with competitive pricing, full technical support and product sourcing. Up to +500 price breaks are available on these Fischer Elektronik ranges. For more details, technical specifications and datasheets please visit the Rapid website.

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The Fulltech UF18J(C) is a series of heavy-duty fans available from Aerco with an aluminium 180x180x90mm frame and plastic 94VO covered glass fibre impeller, designed for use in large, densely packed cabinets.  Its high performance in a relatively small frame size makes it an ideal replacement for larger fans with similar performance where space is limited.

Capable of airflow at 60Hz of up to 216 litres/sec (460 CFM) at zero pressure, with a maximum pressure of 27mm H2O the UF18J(C) has a high quality ball bearing system and is powered by a thermally protected capacitor induction motor powered by 100, 115, 200 or 230VAC supply at either 50 or 60Hz.

The UF18J(C) has an operating temperature of -20ºC to +70ºC, has an operating life of over 40,000 hours at 40ºC, an operating noise level of 59dB(A) and is supplied with standard terminal connections.  The series is UL listed, TUV approved and CE marked.

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ADDA DC Fan from Aerco

Now available in the UK from Aerco is a new high performance DC fan from ADDA that is ideal for cooling modern, densely packed enclosures.

The AD 12738 series is built in a 127mm x 127mm x 38mm frame size, has a rotor speed of 4,500 rev/min, produces airflow of up to 114 litres/sec (242 CFM) at a 150 Pa and is ideal for operating in confined spaces where high pressures occur.

Versions are available with supply voltages of 12V, 24V and 48V and the presence of tachometer and fan-failure signal wires mean that the AD 12738 can be incorporated into ‘intelligent’ cooling systems.

High quality ball bearings provide a life of 70,000 hours at 40ºC.

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New DC bearing technology improves life and performance of DC fans

Now available in the UK from Aerco is the new AUB series of DC fans from Delta that incorporates new bearing technology to provide a life of 50.000 hours measured with L10 at 40ºC, much longer than conventional sleeve bearings.

Available in 60mm and 92mm square frame sizes with a depth of 25.4mm, AUB fans are supplied in either conventional axial flow or centrifugal blower formats with a maximum airflow 7.58 litres/sec (16.11 CFM). Supply voltage is 5V or 12VDC and the fans are RoHS compliant making them ideal for cooling modern equipment in IT applications, desktops, PCs, CPU cooling and equipment housed in 1U sized enclosures. Waterproof versions are also available.

The new Superflo bearing system is an improved sleeve bearing with reduced shaft friction and improved, recycling oil reservoirs that reduce power consumption and extend the product life over conventional sleeve bearing systems. The operating noise level is at a similar level to a two-ball bearing system.

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Arrow stocks full range of cooling technologies for process control equipment

Arrow has announced a full range of technologies for the cooling of process control equipment. The company’s comprehensive portfolio of fans, heatsinks and accessories provides the widest variety of options for manufacturers and maintainers of equipment in industries ranging from food to pharmaceuticals.

Among the technologies that Arrow can deliver ex-stock is the wide range of DC and AC fans from specialist manufacturer ebm-papst. Fans are available in axial, radial and diagonal configurations and in sizes to address the cooling requirements and space constraints of almost any process control system. For applications where natural convection cooling is required, Arrow provides extruded aluminium heatsink technologies from thermal management specialist Aavid Thermalloy.

The ebm-papst DC fans available from Arrow include DC axial products with diameters from 25mm to 280mm and the latest S-Force products with blower capacities up to 950m3/h that are capable of dealing with extreme heat. VARIOFAN options that feature intelligent temperature-dependant speed control can operate at lower speeds than standard fans with corresponding reductions in noise output. Where a DC supply is not an option, Arrow offers ebm-papst AC fans in a variety of sizes. These fans include silent running models and the latest ACmaxx family designed for direct connection to all AC voltages with no need for switching.

For passive cooling requirements, Aavid Thermalloy extruded heat sinks provide a wide range of natural convection solutions for higher power components and systems. Arrow offers these heatsinks in many standard shapes and sizes, and can also deliver custom alternatives matched to the specific needs of a given application.

Arrow stocks a number of options and accessories to support the implementation and maintenance of cooling applications. From ebm-papst, for example, Arrow can offer bespoke fan trays, special connectors assembled on power leads or threaded inserts for faster fan assembly, all added value options are 100% tested. Arrow also offers access to ebm-papst full-test facilities. For passive cooling, Arrow can provide heatsink clip systems to eliminate the need for mounting hardware and tools and a selection of thermal interface materials.

» Contact details for Arrow Electronics