Aluminium heat sinks - Import export

For applications involving very high currents and voltages, Seifert electronic provides heat sinks and mounting brackets designed to apply the appropriate pressure for optimal disc cell cooling. Presspack cells are employed in circuits where very high currents and voltages are present. In such scenarios, disc cell cooling is crucial for ensuring good electrical and thermal transfer. Achieving this goal primarily hinges on the connection between individual presspack cells and the heat sinks in disc cell cooling. This connection must be established with the clamping force specified by the manufacturer. With Seifert heat sinks and the accompanying mounting brackets, also known as clamping brackets, we offer professional equipment for maintaining the correct pressure in disc cell cooling applications. This ensures a high level of durability and robustness, contributing to an extended lifespan of the setup.

For forced cooling, Seifert electronic offers compact fan units in various performance classes. The variable fin spacing in the high-performance heat sinks ensures strong cooling during fan operation. In forced convection cooling, fans are required as separate sources of convection. To ensure optimal convection during fan operation, it is recommended to incorporate heat sink profiles. The fin spacing in heat sink profiles is particularly important, as increasing the surface area is key for forced cooling. To push this boundary further, we have continuously reduced the fin spacing in our profiles. Depending on the model, up to three fans per cooler are possible, which can optionally be equipped with pressure chambers for improved air guidance. Most heat sinks are already equipped with aerodynamically designed hollow fins. Additionally, air deflectors for air guidance are available for some heat sink profiles.

High-performance heat sinks from Seifert electronic are exclusively designed for forced cooling applications. The powerful heat sinks from the Vario and DKL series impress with their large cooling surfaces. Utilizing a finned construction, rib spacing can be manufactured that is not achievable with conventional extruded profiles. Thanks to maximized surface area with the same weight, a high-performance heat sink delivers above-average cooling performance per unit volume. We have patented our proprietary compression geometry at Seifert electronic. In this process, individual fins are precisely cold-pressed into a heat sink without the use of adhesives. Heat conduction in the finned heat sinks occurs directly from the base to the fins, without any thermal transition as seen with pressed-in ribs into a solid base. Custom mounting holes can be incorporated into the pressed, surface-milled base.

Seifert heat sinks are designed for both natural and forced cooling applications. From standard heat sinks to individually machined custom profiles, we offer the appropriate heat sink in the desired profile. The standard heat sinks from Seifert electronic GmbH are classic finned heat sinks, primarily intended for natural cooling. However, these heat sinks can also be utilized for forced cooling with airflow. Thanks to the extensive variety of profiles in our standard range, we can fulfill almost any heat sink requirement. From small transistor coolers to profile giants for IGBT cooling, measuring up to 900 mm in width, we provide the right profile for nearly every application. In addition to our standard profiles, we have access to open profiles, offering the possibility of further variations without incurring tooling costs.

Maximum heat dissipation using PC board heat sinks in minimal board space. Seifert electronic GmbH offers custom heat sinks for use in the board area – precisely measured and flexibly adapted to your requirements. The wide standard range of Seifert electronic includes PC heat sinks in all common designs. We provide various heat sink models such as snap-on heat sinks made of strip material, extruded heat sinks, die-cast heat sinks, as well as finger heat sinks and U-shaped heat sinks, along with the corresponding accessories like mounting clips for fastening. Extruded profile heat sinks are considered classics among PC board heat sinks. We gladly recommend them for use in the board area as they are versatile and can dissipate relatively large amounts of heat.

The fan and cooling specialist SEPA EUROPE unveils a true innovation this year: The RaAxial fan. This created term is a combination of the words radial and axial. The microfan with its dimensions of 17x17x4.5mm is ideal for compact, embedded applications and offers numerous possibilities, e.g. as an axial fan for the ventilation of housings or as a radial fan for blowing air onto the heat sink. A tailor-made „Kühligel®“ has already been developed for the latter which makes the cooling of hotspots child’s play when space is limited. Reliability has top priority at SEPA EUROPE. For this very reason the new fan is equipped with the tried and tested Magfix® bearing system. The life expectancy at 40 °C is 210 000 h (MTBF) or 40 000 h (L10).

The fan and cooling specialist SEPA EUROPE has now added three further models to its slimline radial fan series. The latest additions impress with their compact dimensions of 38 x 40 x 5 mm, 54 x 52 x 6 mm and 45 x 45 x 4 mm and have more than deserved the name „slimline“. All fans are equipped with the reliable Magfix sleeve bearings and have a service life of 210 000 h (MTBF) and 40 000 h /L10) at 40 °C. The PWM input in combination with the tacho output enables the speed to be controlled and monitored. It is not obvious at first glance, but the Model HY45AB05PNK00A tops with a pressure of 143 Pa. The new models will be included in the standard range and will therefore be available shortly from stock. SEPA EUROPE specializes in customized cooling solutions. Thanks to over 25 years of experience, SEPA EUROPE can offer you the appropriate solution for virtually every task.

Chip cooling with the aid of heat sinks usually requires a lot of space and is not only heavy but also expensive. The specialists at SEPA EUROPE have developed a chip cooler with minimum space requirements for compact designs. The core component of the compact cooler is the ultra-flat blower HY40H that is combined with a Kühligel® of pure aluminium. The special feature of the new cooling solution is its variability which means that the size and shape of the heat sink can be freely chosen. Users can thus assemble the cooler to optimally fulfil their requirements. With a thermal resistance of a mere 2.5 K/W, the new chip cooler withstands a power dissipation of up to 15 W and in doing so guarantees the operational safety of the entire embedded system. The blower is equipped with the highly durable Magfix® sleeve bearing and has an impressive service life expectancy of von 210 000 h (MTBF) at 40 °C.

SEPA EUROPE offers a 40 mm frameless fan especially for embedded systems. It is 10 mm high and provides a compact solution for chip cooling when used in combination with the appropriate heat sink. In addition to the 50 mm frameless fan which is already on the market, the new round 40 mm fan is also a much sought-after model for embedded systems. This is because many standard cooling solutions in this business sector are based on the 40 x 10 mm fan. Strictly speaking, the 40 mm fan has a rotor diameter of 37 mm. The version offered by SEPA EUROPE is equipped with two ball bearings and can boast a remarkable service life of 70.000 h at a temperature of 40°C. In addition to an impulse output for speed monitoring, it also has a PWM input for speed setting in the range of approx. 35 – 100% of the nominal speed. In conjunction with the power block pin-fin heat sink, this virtually silent fan with 22 dB(A) is also available ready for connection in the „Kühligel“ version.

The chip cooler of the HXB series by SEPA EUROPE is a compact combination of fan and heat sink and is an attractively priced combination with an adequate cooling capacity. But the development engineers at SEPA EUROPE wanted to go further and this pushing ahead marked the birth of the 3DQler. The cooperation with the experts of APWORKS provided the decisive impulse. Due to the metal 3D printing, also known as additive manufacturing, APWORKS is in the position to produce geometrically highly complex heat sinks. Without having to change the external dimensions or make the fan more powerful, the additively manufactured version can be realized with 30% more efficient waste heat. With the 3DQler, SEPA EUROPE and APWORKS have developed a modern and active cooling concept that offers numerous advantages: Freedom of design with regard to installation space and a reduction of the manufacturing costs.

One of the most popular SEPA EUROPE fans is the axial fan with the dimensions 40x40x10 mm and the popular Magfix® sleeve bearing. This year it underwent complete revision and further development. The new fan generation is known as the LF40P and with the same external dimensions is installed in the same way as the previous model. The new and currently unique rotor geometry is obvious at first sight. It is completely different from the previous shape and layout. Thanks to the distinctive rotor blade with a cut, either a clear noise reduction can be achieved at the same speed or the same noise level as previous generations with 25% more air performance. The current model is equipped with the SEPA MagFix® bearing and PWM input with which the speed can be set to meet the necessary requirements. The LF40P is an excellent example for the permanent further development of products at SEPA EUROPE.

The new super flat active chip cooler of the cooling specialist SEPA EUROPE is a convincing solution for applications in the embedded computing sector, in particular for single board computers. The HZ25B05 with its dimensions of 25x25x6.5 mm can be installed even in flat applications and ensures highly effective heat dissipation. The size of this super flat design is not its only advantage, but also its exceptionally low noise level. The heat sink is made of high-purity aluminium and has low thermal resistance. The integrated micro fan is also equipped with a special, highly durable MagFix® sleeve bearing designed for operating temperatures of up to 80°C. Particularly noteworthy is the fact that the micro fan which is operated with a voltage of 5VDC, has a power input of only 0.3 W and a life expectancy of 400000 hours. The fan can also be equipped, if necessary, with a tacho output for monitoring the function. Both and the fan and the heat sink are available separately.

The significance of air quality measurements whether in industry, households or in vehicles is constantly increasing. Manufacturers therefore, should equip their applications with the optimal sensor fan and in this respect SEPA EUROPE is exactly the right partner! SEPA EUROPE has complemented its range of microfans with the radial fan HY20A with the dimensions of 20 x 20 x 6.3 mm. The air intake of the radial fan which is on one side is 2 l/min and with a sound pressure level of 5dB(A) at a distance of 1m, it is virtually inaudible. As is the case with all microfans, the HY20A is equipped with the reliable Magfix sleeve bearing and has a service life of 400 000 h (MTBF) or 50 000 h (L10) at 40°C. The tachometer output constantly monitors the speed at which the fan is running. The HY20A is also an interesting solution for the cooling of hot spots in embedded applications. This compact blower ensures that optimal use is made of limited installation space.

Even the micro fan MF17B05 from the RaAxial range was a true innovation simply because it can be used not only as an axial fan but also as a radial fan. The micro fan has now a „big brother“– the LF40E05. The LF40E05 provides numerous possibilities for embedded applications. It can be used either as an axial fan with integrated finger guard or as a radial fan in combination with a heat sink. Together with a matching Kühligel® the flat cooling units have a height of approx. 12 mm. In other words, they are ideal for compact applications. In order to achieve the optimum size and heat dissipation, customized dimensions and shapes can be realized. The new model with its 0.15 W power input during operation, is extremely economical with regard to its diverse application possibilities. And that’s not all, the new RaAxial fan has aerodynamically optimized blades that have a significant effect on the noise behaviour. The LF40E05 is thus exceptionally quiet.

The aluminum nitride (AlN) ceramic has high thermal conductivity(5-10 times as the alumina ceramic), low dielectric constant and dissipation factor, good insulation and excellent mechanical properties, non-toxic, high thermal resistance, chemical resistance ,and the linear expansion coefficient is similar with Si,which is widely used in communication components, high power led, power electronic devices and other fields.Special spec products can be produced upon requests. Product Features 1.Uniform microstructure 2.High thermal conductivity* (70-180 Wm-1K-1), tailored via processing conditions and additives 3.High electrical resistivity 4.Thermal expansion coefficient close to that of Silicon 5.Resistance to corrosion and erosion 6.Excellent thermal shock resistance 7.Chemically stable up to 980°C in H2 and CO2 atmospheres, and in air up to 1380°C (surface oxidation occurs around 780°C; the surface layer protects the bulk up to bulk up to 1380°C).

Aluminium nitride (AlN) is one of the best materials to use if high thermal conductivity is required. When combined with its excellent electrical insulation properties, aluminium nitride is an ideal heat sink material for many electrical and electronic applications.

Aluminum nitride ceramic thermal insulator pads are ceramic materials with outstanding properties such as high thermal conductivity and high electrical resistance. In addition, it is featured advantages such as high hardness, corrosion resistance, low dielectric constant and dielectric loss, and low CTE. Aluminum nitride ceramics have excellent thermal conductivity (7-10 times that of alumina ceramics), as the thermal expansion coefficient of silicon is similar, as a new generation of ceramic materials, more and more people pay attention to it. Regular Size： For Package Type: TO-3P / TO-220 / TO-247 / TO-264 / TO-3/TO-254/TO-257/TO-258, With Hole or Without Hole. TO – 3P, 25*20*1mm (other thickness is available, too); TO-220, 20*14*1mm (other thickness is available, too); TO-247, 22*17*0.635mm (other thickness is available, too); TO-264, 28*22*1mm (other thickness is available, too); TO-3, 39.7*26.67*1mm (Rhombus shape).

Inspired by customer inquiries, SEPA EUROPE has developed a new, modular assembly for the efficient cooling of chips. The core component is a SEPA axial fan that is mounted on a 40 mm pure aluminium heat sink – a so-called Kühligel®. It is equipped with a finger guard and a double-sided adhesive heat pad for screwless mounting on the housing or inside the device. Thanks to the compact design, the light weight and the screwless mounting, this assembly enables accurate positioning and thus effective cooling of the hot spot. The chip cooler HXB40FGK is equipped with a high precision ball bearing and can be used at ambient temperatures between -10 and +85 °C thus opening up a wide range of application possibilities. A further advantage is the long service life of the fan with 350 000 h (MTBF) at 40°C. The chip cooler assembly HXB40FGK is supplied as a standard component. It can however, be customized.

Product Features: • The Sink Box series is a British designed extruded aluminium enclosure (originally sold under the West Hyde Enclosures Ltd. name). • Ideally suited for mounting small printed circuit boards or chassis horizontally. • The enclosure body is formed from a single hollow aluminium extrusion. This gives the unit high strength as well as simplifying assembly. • The aluminium extrusion has fins on one side (the top) which act as a heat sink. Aluminium end panels are attached to each end. • Extrusions are anodised in a choice of either black or clear. • The interior of the enclosure contains: • Numerous slots on both of the shorter sides to accept a P.C. board or chassis • Three "T" slots (one in the top and two in the bottom) which provide an alternative method of mounting chassis or components that need to be cooled by conduction • The single "T" slot in the top takes an M3 half-nut • The two "T" slots in the bottom take M4 half-nuts

There are two models of compact NVR, NSBon-45 and NSBon-44 with PoE ports. It can work with all ONVIF-compliant IP cameras, supporting dual stream and up to 4K definition. NVR can be used for offline recording with supporting 8x 1080P or 9x 720P network cameras, or as a required element for LTE/4G Router connecting. It supports recording by manual, by timing and by motion detection. It also supports pre-record and post-record time for motion detection, alarm recording, motion and/or alarm recording. Various PTZ protocols and PTZ operations such as preset, patrol, etc. The total hard disk storage up to 10TB or 4TB. 1*SATA HDD(3.5”) or 2*SATA HDD(2.5”) are supported. NVR can work and intelligently switches between H.264 and H.265 compressions. Compact device design allows DIN rail mounting. The aluminum casing serves as a heat sink. General features of both NVR: Network Video Input: 9 (5MP); Maximum Resolution: 8MP; Video Compression: H.265/H.264; Audio Compression

The lightning system 9450 for greater distances consists of robust 1510 suitcase and 16 x 1-Watt Luxeon LEDs, which are installed in an aluminium heat sink. All parts are placed in suitcase and can be fixed within minutes. The aluminium pole can be extended to a height of 210cm in order to lighten long distances with 1280 lumen light. The 9450 lightning system runs by a rechargeable battery with 17 hours lifetime, which supplies up to 9 hours light at maximum power and is charged in only six hours. As soon as (if included in delivery) the diffusor is mounted the focussed light beam develops to scattered one. Datenblatt

ETC Source Four Fresnel, silvergrey With the Source Four HID you have the power of a Source Four fixture with 575 watt available, the service life of 2000 hours shall be extended by a further 10000th This provides 150W metal halide lights you all the advantages that made ​​the Source Four famous habem: the cool beam, the sharp and clear image and a bright, uniform light field Technical data: Lamp 70W metal halide Color Temperature: 3000K interchangeable Linsenset HID versions: Source Four with fixed focus and zoom electronic ballast with 120V, 230V or 277V on the bracket mounted 12,000 hrs lamp life for architectural applications Color: black (other colors upon request) Delivery includes: color frame, Linsenset, 1.5 m cable without plug, with bulb SPECIFICATIONS > Rugged die-cast aluminium construction > Convenient full-size zoom adjustment knob > Unique HPL Quick eXchange socket enables easy lamp changes > Sliding yoke mount for variable balance point > Fully enclosed accessory slots for no light leak > CE compliant ELECTRICAL > 230V-240V, 50/60Hz > High temperature silicone-rubber 1.5m power cable OPTICAL > 175mm aperture > Zoom Range: 9 ° -52 ° beam angle; 20 ° -65 ° field angle > True fresnel optical system for good barn door beam shaping characteristics > Glass reflector with dichroic coating optimized for HPL lamp performance LAMP > HPL - compact tungsten filament contained in a krypton/xenonfilled quartz glass envelope (see table for suitable lamp types) > Uses same lamp type as all Source Four fixtures for common inventory > 375W, 575W and 750W (max.) lamp options > Patented filament geometry makes for extremely efficient light collection and transmission > Integral die-cast aluminium heat sink lamp base

ETC Source Four Fresnel, black With the Source Four HID you have the power of a Source Four fixture with 575 watt available, the service life of 2000 hours shall be extended by a further 10000th This provides 150W metal halide lights you all the advantages that made ​​the Source Four famous habem: the cool beam, the sharp and clear image and a bright, uniform light field Technical data: Lamp 70W metal halide Color Temperature: 3000K interchangeable Linsenset HID versions: Source Four with fixed focus and zoom electronic ballast with 120V, 230V or 277V on the bracket mounted 12,000 hrs lamp life for architectural applications Color: black (other colors upon request) Delivery includes: color frame, Linsenset, 1.5 m cable without plug, with bulb SPECIFICATIONS > Rugged die-cast aluminium construction > Convenient full-size zoom adjustment knob > Unique HPL Quick eXchange socket enables easy lamp changes > Sliding yoke mount for variable balance point > Fully enclosed accessory slots for no light leak > CE compliant ELECTRICAL > 230V-240V, 50/60Hz > High temperature silicone-rubber 1.5m power cable OPTICAL > 175mm aperture > Zoom Range: 9 ° -52 ° beam angle; 20 ° -65 ° field angle > True fresnel optical system for good barn door beam shaping characteristics > Glass reflector with dichroic coating optimized for HPL lamp performance LAMP > HPL - compact tungsten filament contained in a krypton/xenonfilled quartz glass envelope (see table for suitable lamp types) > Uses same lamp type as all Source Four fixtures for common inventory > 375W, 575W and 750W (max.) lamp options > Patented filament geometry makes for extremely efficient light collection and transmission > Integral die-cast aluminium heat sink lamp base

ETC Source Four Fresnel, white With the Source Four HID you have the power of a Source Four fixture with 575 watt available, the service life of 2000 hours shall be extended by a further 10000th This provides 150W metal halide lights you all the advantages that made ​​the Source Four famous habem: the cool beam, the sharp and clear image and a bright, uniform light field Technical data: Lamp 70W metal halide Color Temperature: 3000K interchangeable Linsenset HID versions: Source Four with fixed focus and zoom electronic ballast with 120V, 230V or 277V on the bracket mounted 12,000 hrs lamp life for architectural applications Color: black (other colors upon request) Delivery includes: color frame, Linsenset, 1.5 m cable without plug, with bulb SPECIFICATIONS > Rugged die-cast aluminium construction > Convenient full-size zoom adjustment knob > Unique HPL Quick eXchange socket enables easy lamp changes > Sliding yoke mount for variable balance point > Fully enclosed accessory slots for no light leak > CE compliant ELECTRICAL > 230V-240V, 50/60Hz > High temperature silicone-rubber 1.5m power cable OPTICAL > 175mm aperture > Zoom Range: 9 ° -52 ° beam angle; 20 ° -65 ° field angle > True fresnel optical system for good barn door beam shaping characteristics > Glass reflector with dichroic coating optimized for HPL lamp performance LAMP > HPL - compact tungsten filament contained in a krypton/xenonfilled quartz glass envelope (see table for suitable lamp types) > Uses same lamp type as all Source Four fixtures for common inventory > 375W, 575W and 750W (max.) lamp options > Patented filament geometry makes for extremely efficient light collection and transmission > Integral die-cast aluminium heat sink lamp base

Characteristic Features : high corrosion durability, high welding capability; especially high durability against industrial atmosphere and sea water. Suitable for cold shaping, high fatigue strength, suitable for coating. Warnings : During cold shaping, stabilized form should be preferred, if remains unprotected above 65 degree, gets exposed to corrosion, if non-appropriate heat treating is applied, stress and corrosion among particles occur.

We specialize in engineering high quality composites for management of heat in electronics packages, particularly Integrated Circuit (IC) packaging. These composite materials are comprised of Molybdenum Copper (AMC) and Tungsten Copper (AWC). Turnkey Solution for Production Ready Pedestals Our advanced thermal management materials are offered both in a raw form such as block or sheet for finished machining at our customers’ facilities or their sub-tier suppliers. We also offer turnkey finished products completed through machining, plating and customer specified packaging. Sizes Our heat spreader materials for IC packages are offered in a wide breadth of sizes including: Standard blocks of 3” (76 mm) x 4” (102 mm) x 12” (304.8mm) Down to finished machined and plated products in 0.015” (0.381mm) cubes Hermetic Housings and Heat Sinks These thermal management products are used as both the hermetic housings and as the expansion-matched