Tag Archives: soselectronic.com

Have you tried Serial to Ethernet communication?


More than 50 developers tested Wiznet modules during Pizza workshops in Brno, Bratislava and Budapest.

The main topic of Pizzaworkshop was Ethernet communication via Wiznet modules. Developers had a chance to test how fast and simple it is to connect the device to Ethernet and all of this was led by Joachim Wülbeck from Wiznet.Developers also tried working with EVB kits WIZ550S2E, as well as innovative WiZwiki-W7500. There were also answers for many questions about settings, programming, sending and receiving serial data via Ethernet, as well as troubleshooting the proposed applications.

Pictures will tell you more about how it looked like during the workshop… :-)

Do you like our Pizzaworkshops?

Do not miss our next workshop in October with Lantronix. Sign up today. Number of seats is limited.

Have you tried Serial to Ethernet communication? – [Link]

Don’t be afraid of heatsinks modifications


If you´d like to use some of standard heatsink profiles, but you need for example an extra opening, we´ll supply it to you customized according to your needs.

Perhaps everyone of us is familiar with a sentence mentioned in various catalogues, á la “upon request we can supply you a customized version”. Naturally that sounds good, but sometimes it is associated with a significantly higher price or with a considerable minimum order quantity (MOQ). That´s why we don´t want to generalize, as every producers behaves differently, but we´d rather like to mention one concrete example – on a heatsink.Aluminium heatsinks certainly belong to a group of components, where a small mechanical modification is very often required. Length, openings, threads, milled ribs,… In fact a small modification, which can make a production of your device significantly easier is available for a quite affordable charge. For example drilling of two openings upon request plus 2x M2,5 threads into some of standard heatsinks costs approx. 0.6-1 Eur, already at 50 pcs order (depending on a producer and a heatsink type).

In case, you don´t have a precise CNC equipment for accurate work with metals ( what´s perhaps the status of majority of small and mid-size companies), a possibility to get such a custom-modified heatsink is usually highly welcome. Maybe it´s worth mentioning, that it´s not about drilling of openings “somewhere” on a heatsink with a questionable position and accuracy, but a quite precise CNC operation.
Small price difference is usually acceptable for every product and you – as a producer – are relieved of further complications with a mechanical modification “in house” or at your local companies.

That´s why, next time you´ll face a question, how to modify a given heatsink, let us know – maybe you´ll be pleasantly surprised.

Don’t be afraid of heatsinks modifications – [Link]

One case – over 100 possibilities of usage


We speak about the practical case CTK110EU full of high quality CrV tools sufficient for majority of common operations.

CTK110EU tools set might be easily called as “all-in-one”. Naturally, such all-in-one solution won´t help in all situations which we may face at production or servicing, but very probably it is more than suitable for a vast majority of common operations. Perhaps the biggest advantage of this solution is, that everything is clearly packed in a practical carrying case. So if you have such a case of tools by your hand – in a workshop or car, it´s very probable, that it will be your first choice for any situation.Why just the CTK110EU? Because it is a case from a renowned producer Crescent (a member of APEX tool group, where also the Weller belongs) and contains 110 tools of a guaranteed quality (CrV/ CrNi) and also ergonomically on a very good level.
All, what the case contains can be found in the CTK110EU datasheet.

One case – over 100 possibilities of usage – [Link]

Get rid of unpleasant odors easily and effectively


USM-MEMS-VOC module evaluates rate of air pollution by contaminants such as cigarette smoke and cooking odors and allows control of air ventilation system on demand.

Modul USM-MEMS-VOC is based on the innovative and highly stable TGS 8100 MEMS semiconductor sensor TGS8100 from Figaro. In the presence of detectable gas, sensor resistance decreases depending on gas concentration in the air. New technology allows very rapid response to gas concentration change. The USM-MEMS-VOC reacts within 8 seconds.

The module evaluates ratio of sensor resistance in clean air (base level) to sensor resistance in polluted air and calculates air quality in range 0 to 100%. It communicates through UART interface. Besides that it provides PWM signal (185Hz) with pulse width proportional to air quality and three binary outputs which turns on when air quality reach 25%, 50% and 75%.

The module allows using of external I2C temperature/humidity sensor for measuring and also to temperature/humidity compensation of TGS8100. USM-MEMS-VOC and TGS8100 can be found in our standard stock offer.

Get rid of unpleasant odors easily and effectively – [Link]

Can a current flow even up the hill?


Of course it can, even apeak. So if you connect leads from the bottom side via a PCB connector, you don´t have to worry about the current…

Should you however be afraid of accidental fall off of the connector (it will certainly hold on if there are no vibrations, shocks or unpredictable tension to leads), then for your peace of mind we recommend you to use connectors that can be secured by a screw.

Naturally, devices exposed to vibrations are much more frequent (for example with a motor) or even devices which are often subjeted to transport – for all such cases a connector with a flange (and integrated screw) finds its place.

Such solution is also offered by a well-known producer of terminal blocks – EUROCLAMP. For example for currents up to 8 Amps and voltages to 160V, these novelties from our stock are suitable:

  • SH04-3,5-K (4-pole plug-in connector for cable, with a 3.5 mm pitch, with a flange and screw)
  • PV04-3,5-V-K (a mating piece to SH04-3,5 for a PCB with a flange and screw) For a real certain feeling, this component can be screwed to a PCB by a self tapping screw ( ISO1481-ST 2,2×4,5(6,5)C screw, not included)

A screw also prevents accidental disconnection (it´s only possible with a screwdriver). In extreme case, the screws can be replaced by security head screws… (but this perhaps no – if you deal with a critical device – then use some more efficient precautions).

Detailed information can be found in the SHxx-3,5-K and PVxx-3,5-V-K datasheets.

Can a current flow even up the hill? – [Link]

1A from the sugar cube sized module


With continuous improvement TRACO unveils the SMD version of enormously successful 1A DC/DC converter, the TSR1SM.

The TSR1SM series models of step-down switching regulators (non isolating – POL) have a high efficiency up to 96 % which allows full load operation up to +65°C ambient temperature without the need of any heat transmission layer. Excellent output voltage accuracy (±2%) and low standby current (~1 μA) are features that distinguish these switching regulators from linear regulators.To make a SMD version of such a DC/DC converter is not a simple task, the package should withstand temperatures up to 245°C, used in a lead free soldering ovens. TRACO solved successfully this problem and the TSR1SM is qualified for lead free soldering processes as per J-STD-020D.01 (to find at: www.jedec.org – free registration required) with max. peak body temperature 245°C. Also low MSL level 1 allows PCB washing after soldering with baking at 100°C for 30min.

For applications which require lower supply currents up to 0,5Amps, there is a TSR0,5(SM)series of DC/DC converters with better price level available.

1A from the sugar cube sized module – [Link]

Simplify yourself a mechanical design of a device


With suitable spacers and other fastening technology you´ll use a space optimally while gaining a stable and professional construction at the same time.

Success and reliability of a device depends not only on laboratory tests in “ideal conditions” but also on its mechanical construction. Elimination of mutual influence (EMC), optimal space usage, resistance to vibrations, easy assembly at production are one of factors why it´s worth to design mechanical part of a device into details.

At production of prototypes or small series it may be not that important how demanding is to assemble the device into a final form. However at bigger series, the time- and cost-effectivity of every production step will be visible very soon. Suddenly you´ll find out, that for example 1000 pcs of a given device can be finalised (mechanically) within a week, but by simplifying a mechanical design it might be done substantially sooner.

Also for this reason a huge amount of mechanical and electro-mechanical components can be found on the market. If your company grows and your production batches getting bigger, probably you´ve already found out, that certain mechanical component (spacer, cable gland, insulating washer, …)which seemed to you to be a kind of “useless” would save you a lot of time and made a production more effective. This finding is typical if you start to produce hundreds to thousands of pieces.

Our aim is to always provide you complete solution from development up to final production, that´s why in our portfolio can be found lots of mechanical and electromechanical components, mainly marks EttingerKeystone electronics and Toolcraft.

A few attached images may be more illustrating than thousand words. So if you´re searching for any component for construction of your device, try to look at the “assembling material” segment and if you´ll find what you´re searching for, we´ll deliver it to you immediately from our stock or in a short lead-time at favourable conditions (items on request).

Simplify yourself a mechanical design of a device – [Link]

Freeze 75 – and you have a temperature under control


Freeze 75 spray will enable you to find faulty component or also to protect components from overheating during soldering.

A device operates OK until it reaches stable operating temperature … a typical situation in praxis usually caused by a faulty component or faulty (cold) joint. Localization of such a fault is easy only if we can cool down (locally) a given component or a given joint. It´s often possible to suppose a source of malfunction, but to be able to localize it exactly, we´d need to change temperature of only one component or only a small PCB area. Right for this purpose a well known spray Freeze 75, is designed, able to cool down (freeze) a given component very significantly – in laboratory testing down to -52°C. And what about other possibilities of usage?
There are a lot of them. For example a local (preventive) cooling at soldering of temperature-sensitive components like temperature fuses or cooling of sensitive components near a soldered joint (for example soldering of a relatively bulky RF connector at a sensitive RF component, protection of plastic parts etc.) Another unusual help is at removing a rubber-like sticky substances from various places and textile. A typical example is removing of a chewing gum. Freeze 75 is also used in medicine, in machine engineering for shrinkage of small components etc.

How does the Freeze 75 function?
Again we´ll call for help a grammar school physics. When we go out of a swimming pool, we usually feel cold, even though there´s a warm weather outside. The reason is the water evaporating from our skin. Evaporating liquid consumes heat from a given surface. This is also a case of Freeze 75, which is filled by liquids with boiling point deeply below the frost point thus taking a lot of heat from a surface on which it is applied. Freeze 75 is non-flammable, non-explosive at all usual conditions and it also doesn´t attack plastics. It´s only advisable to be careful at components sensitive to sudden temperature changes. For absolutely highest safety in critical applications, the Freeze 75 Super is available, which is non-explosive at any circumstances.

After application of Freeze 75 in moisty environment a small amount of water can condense on a given component, consequently freezing into a whitish coating. This coating will gradually defreeze and evaporate or it can be readily removed by a water miscible solvent like for example Kontakt WL. Freeze 75 (originally marked as Kalte 75) we keep on stock in 200ml as well as 400 ml package. Detailed information will give you the Freeze 75 datasheet.

Freeze 75 – and you have a temperature under control – [Link]

Phoenix EH basic is more than just a “basic” enclosure


If you´re searching for an enclosure with a high variability and for a reasonable price, then we can recommend you the EH basic series enclosures.

Searching for a compromise between the quality (materials, design,…) and production costs is a theme at development of every device and naturally – also at development of components. Also from this reason on the market can be found enclosures with a various wall thickness, with various temperature resistance, etc. and so everyone can choose according to requirements of a designed/produced device. EH basic series from company Phoenix Contact addresses everyone who wants a quality enclosure for a reasonable price. We can say, that EH basic series is not designed for absolutely highest rigidity but for a reasonable compromise among strength and the price. However in every way, we don´t deal with a “paper-like” enclosure but with a solid enclosure suitable for a vast majority of applications with modular devices.
EH basic is designed in a way to reach a maximum user comfort and versatility, i.e. to have a possibility to choose optimum size and version.

Versatility is also supported for example by these facts:

  • 2 mounting possibilities – on a DIN rail or on a wall
  • available in 2 various heights (110,5/54mm)
  • available in 7 various widths (22,5-90mm)
  • parts of enclosure mating without use of tools
  • 3 various cover versions (closed, 1-sided connection, 2-sided connection) in two colors
  • integrated (recessed) field for marking (labels) on the side of enclosure
  • over 100 combinations is possible
  • PCB mounting is possible in all 3 ways

EH basic enclosures enable to use various connection technologies, including RJ45 and USB connectors, as illustrated at attached pictures. EH basic enclosures will soon be our standard stock item. Upon order, we´re able to supply you all versions.

Further details can be found in the Phoenix Contact electronic enclosures overview.

Phoenix EH basic is more than just a “basic” enclosure – [Link]

Würth Elektronik – a huge range of inductive components


Würth Elektronik is one of the largest European manufacturers of passive and electromechanical components. The range is really wide, judge for yourself.

Let us mention at least two types from a wide range:

  • WE-PD – is a popular “standard” series of SMD inductors. Also available with white coating in the sizes 7332 (7,3×7,3×3,2mm), 7345, 1260 and 1280 for use in applications with LED.
  • WE-HCI – series is designed for high current switching regulators. Standard operating temperature range is -40 °C to +125°C, for some types up to +155°C. The inductors are wound by a flat wire.
    This allows optimal use of space inside the core and thus achieves extremely low DC resistance of the winding while reducing winding losses caused by the skin effect.
    As an example 744355122 type features saturation current 65A, winding DC resistance 0,35mOhm and operating temperature range -40 °C to +155°C.

In addition to the power coils we have included to our portfolio also RF inductors, dual coil power inductors, common mode chokes, ferrite beads, ferrites for cable assembly, transformers for SMPS and coils for wireless power chargers.

We have extended our offer of power coils by 23 SMD series and 4 TH series. Series

  • SMD, non-shielded – WE-PD4, WE-PD2, WE-LQ, WE-LQS, WE-PD2A, WE-PD2 HV
  • TH, shielded – WE-TIS
  • TH, non-shielded – WE-TI, WE-SI, WE-TI HV

Würth Elektronik – a huge range of inductive components – [Link]