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22 Apr 2014

obr1509_1

New movement detectors (PIR) represent a Professional solution with up to 30 m range and wide possibilities of assembly.

On the market, there are many movement detectors based on a PIR sensor. For a simple usage, like for example lighting of a garage entry. Probably, it´s not necessary to use a top quality sensor with exactly defined specification and with wide possibilities of adjustment if you´d like to use it for example for a simple lighting of a garage entry. But a for a frequented corridors, security devices, lighting switching, … it´s surely beneficial if having a detector which we can rely on. Detectors from company Finder belong to such category. Finder offers five basic series:

18.01/18.11 – detector with a wide detection angle and a universal assembly with a possibility of an easy selection of a spce to survey. Typ 18.01 is suitable for indoor applications, 18.11 also outdoor.

18.21/18.31 – detector for ceilings with a surface or recessed assembly

18.41 – detector for hotel or office corridors, up to 30x4m range (depending on a height of a ceiling)

18.51 – highly sensitive ceiling type with a square detection pattern (up to 8x8m), suitable for schools, offices and also low activity zones. High sensitivity enables operation in 2 modes – “presence” and “movement”. In this case even a minimum movement, like for example a work on a PC is sufficient to activate the detector. Such a sensitivity can help to prevent for example an unwanted locking of building and activation of alarm, when you already think, that there´s nobody inside (but in fact, somebody is still there :-)).

18.61 – specific product for a wall assembly, 180° angle of survey, detects a half-circle with up to 18m diameter.

All types have elements for adjustment – ambient light sensitivity and a switch-on time of a contact (from a last detection). New types – 18.41, 18.51 and 18.61 also have the third adjusting element – sensitivity of the sensor itself. Thanks to them, it´s possible to adjust a detector to meet requirements of a given application. Logic of switching is an “addition”, i.e. if in time of a switched-on contact occurs another detection, the sensor will prolong the switch-on time for the selected time, i.e. no switch-off of the output contact (neither a short one) will occur. All types are designed for mains applications (96-253VAC) and they have a relay output (10A contact). Contact at types 18.41, 18.51 and 18.61 is also able to switch 400VAC.

Types 18.41, 18.51 and 18.61 are supplied with a rich set of accessories enabling a comfortable and aesthetic mounting as suspended ceiling, recess mounting (for example into a wall) and surface mounting.
Detailed information will provide you the Finder 18.01-31 and Finder 18.41-61 datasheets as well as the Finder 18 flyer (DE) and the attached video.

Detectors Finder will detect you even if you don’t move - [Link]

20 Apr 2014

obr1510_p391

RFID keyboard emulators are able to significantly simplify tracking of goods.

“Replacemen” of a keyboard in a form of an RFID module connected to a USB port works very simply – UID of every tag, which will appear in its range will send to a computer – the same way as if we typed it in by a keyboard. SL040A also enables to choose, whether we want the reader to send only data, or also a „CR“ character after every UID (as if an Enter key was hit). It means, that if we already have a software to type in open (for example Excel), the reader itself will fill the cell with data and move the cursor to another cell. SL040A is even able to read data (not only UID) from Mifare tags.

SL040A is also interesting by one feature – on a request from our company SOS Electronic, the producer started to produce also the black version SL040A black.
Detailed information will provide you the SL040A user manual.

SL040A will load it to you directly into a table sheet - [Link]

18 Apr 2014

obr1507_1

New version of a favorite RFID module ID12LA will enable you to implement RFID into your device even more easily thanks to a wide range of supply voltage.

Literally “globally known” with an integrated antenna – ID12 and its familiar like for example ID2 or ID20 have earned a big popularity thanks to a flawless usage and reliability. Perhaps the only disadvantage of this module was narrow range of operating supply voltage, what in praxis enabled only usage of 5V DC. New version – ID12LA solves also this small drawback and the new module works in a range of 2.8-5VDC. This also enable their usage even with a 3.3V logic and for example in battery operated devices (3-4x NiMH, or 1x Lithium cell, …) without necessity of DC converters or a precise voltage regulation.

The module ID12LA (range approx. 12cm), as well as ID20LA (range approx.16cm) are in our stable stock offer, similarly also the Mifare version (13,56 MHz) – ID20MFIA. In case, that you prefer the maximum range, it´s possible to use module ID2 supplied with an external antenna (range up to 30 cm).

Detailed information will provide you datasheets at particular types below the article.

RFID module ID12LA will also abide a lower voltage … – [Link]

18 Apr 2014

obr1506_uvod

A flux in a spray from company Kontakt Chemie is a very useful helper for development and production.

Everyone, who´ve ever tried to solder without a flux and then with a flux, probably has seen a big difference in solder spreading and in a resulting joint quality. This effect is very visible on a PCB with bare copper tracks without any surface treatment (for example at DIY production of prototypes) but there´s also a significant difference at boards with a surface treated by tin (HAL) or by gold (Flash, chemical gold,..).

Maybe you have a question, whether it makes sense to add a flux when it already is in a solder wire? Naturally, fluxes in soldering wires are of a high quality and producers of solders (Stannol, Koki, Multicore,…) try hard to reach uniform releasing at soldering and to show a minimum spatter. Mainly at soldering of small joints this spatter often causes, that a flux won´t get to a solder pad, what significantly embarrasses solderability. The charm of a flux is based on the fact, that it is directly on a solder pad and in the desired thickness, which can be influenced by application.Especially at soldering of SMT components it´s often even impossible to solder by a method “solder wire in one hand, soldering tool in another”, because we usually need one hand to hold a component in tweezers and moreover – often even a 0.5mm solder wire is too thick to precisely dose a solder directly to a small component in for example an 0402 package. That´s why we usually solder SMT components by a method of taking a little bit of solder on a soldering tip and then applying to a component. But here´s a problem, that a flux won´t survive this a few seconds long “journey” but it will degrade by evaporation, oxidation,… In contrast a flux applied directly to a PCB will replace a missing flux from a solder wire and the difference in spreading of a solder is really huge.

FLUX SK 10 (originally called also a LOTLACK SK10) is based on the natural rosin (colophony) and after application it creates a thin layer. This layer makes soldering significantly easier and at the same time it protects from corrosion. That´s why the FLUX SK 10 has wide possibilities of usage as an agent for temporary protection and significant improvement of solderability of PCBs, various contacts, cable assemblies, terminals of batteries,…

A big advantage is, that in a dry environment the FLUX SK 10 can be left on a PCB as a final protective layer. However in a humid environment it undergoes hydrolysis and degrades. In such environment, it´s better to use Plastik 70, Urethan 71 or Silisol 73.  Detailed information will provide you the FLUX SK10 datasheet.

Make your soldering easier with a Flux SK10 spray - [Link]


16 Apr 2014

Spring offer of company Wago brings you a price gainful set of favorite terminal blocks together with a novelty – quality clamp multimeter.

Installation terminals Wago 2273 series are becoming a standard in installations and they gradually replace their predecessors – series 273. They´re well known, but if you by a happen don´t know them yet, you can get a brief description for example in a video below this article.So why do we mention them? Because company Wago comes as usually in spring, with a special offer, when you can buy a set of Wago terminal blocks Wago together with some useful tool, multimeter and similar. This time it´s a really attractive offer, because in a set containing 950 pcs of installation terminal blocks you will gain a novelty from Wago – a professional clamp true RMS multimeter type 206-816 (CAT III). Besides a majority of common function it´s also able to measure capacity, frequency, wide measuring range (600V, 600A, 60 MOhm) and also for example a very useful complement at measuring in dark environment – an integrated LED torch.

For the price of 149 Eur you can gain a set of 950 pcs terminal b locks and a universal professional measuring tool. Set of 950 pcs terminal blocks consists of 100 pcs 224-112, 100 pcs 2273-202, 300 pcs 2273-203, 100 pcs 2273-204, 300 pcs 2273-205 and 50 pcs 2273-208.

Fresh offer of Wago terminal blocks with a clamp TRMS multimeter - [Link]

14 Apr 2014

obr1504_1

If you´re deciding, which fan to use in your application, we have for you a good hint.

Better said, we have any “ideas for top-level types” and they have a name in common – EBM Papst. Fans of German company EBM Papst were introduced to you for example in our article Fans able to operate continuously for 30 years. We´re pleased to announce you, that we gradually increase number of stock types, what will hopefully make your choice of a suitable fan easier and it should also help you in the consequent production thanks to an immediate availability.

To the new types recently added to our stock belong for example:

  • 4650N - universal all-metal AC fan (230V/50Hz/19W) with an air flow up to 160 m3/h, Sintec sleeve bearing. Static pressure up to 80 Pa
  • G2E120-AR38-A4 - powerful radial (centrifugal) fan with a massive aluminium body and a galvanized steel impeller. Also suitable for a continuous operation (S1) and it can be mounted in any position. Frequently used type for example at gas heaters etc.
  • W2S130-AA03-01 - universal powerful AC fan (D 150mm, 230V/50Hz/45W) with an air flow of up to 325 m3/h and a static pressure up to 80 Pa. All-metal construction, maintenance-free ball bearings. Also suitable for a continuous operation (S1)

… and other, which can be found below this article.

Detailed information can be found in the datasheets at particular types.

EBM Papst – the highest quality for an acceptable price - [Link]

10 Apr 2014

obr1503_3

New antenna 2J620P will provide you a high quality GSM and GPS signal at once, moreover with a very simple assembly.

Tracking of vehicles or goods is still more used what naturally results into a requirement for a suitable antenna. One of them can be the 2J620P. It offers a very simple and elegant solution, as in fact it is “2 in 1” – two antennas in one enclosure, each with a separate RG174 cable and SMA connector. Assembly is absolutely simple – by means of included double-sided foam pad. Also supplied is even a small towel filled by isopropanol for cleaning of a place of assembly as well as antenna itself.

2J620P has a 2.14 dBi gain for GSM and 26-28 dB for GPS. The GPS portion is equipped by an active amplifier, that´s why requires 2.7-5.5V/15-25 mA power supply. In many applications can be also advantageous a flat shape without any nibs.

Detailed description of the antenna can be found in the 2J620P datasheet.

2J620P antenna – GSM and GPS under one roof - [Link]

8 Apr 2014

obr1502_5

New GSM/GPRS/GPS/GNSS modules Quectel offer also special functions, able to make your product exquisite.

Development in the field of communication modules is fast and there are still more segments for their applications. That´s why company Quectel always comes with novelties or at least with enhanced versions of existing modules. This is also the case of two novelties M95EB and UC15.

Module M95 is certainly familiar to you from several our articles like for example Even the Vodafone confirmed quality and reliability of Quectel M95 GSM module. M95 belongs to a TOP in the segment and recently we announced you an eCall support. Meanwhile, this version came to a mass production and we can easily differentiate it by the „EB“ suffix. New version M95EB also supports Dual SIM function (DSSS), what makes it extra reliable even for emergency systems and similar applications. A previous M95 as well as new M95EB are compatible and they will be on the market in parallel, that´s why company Quectel recommends to use the new version (EB) only for applications where you plan to use these new functions.The second novelty is the UC15 module (UMTS/ HSDPA), which is similar to UC15 in many respects, but it´s smaller (29x29x2.5mm) and it has only 66 pins. The main difference is that UC15 doesn´t support GPS/ GNSS and it´s also somewhat slower (upload). UC15 is cheaper than UC20 and in many applications it can represent a very interesting alternative for a very attractive price.

A comprehensive description and comparison of Quectel modules can be found in the Quectel brochure as well as in the datasheets in particular types.

With modules Quectel UC15 and M95EB you’ ll gain Dual SIM, eCall, HSDPA and other functions - [Link]

5 Apr 2014

obr1501_1

With its width of only 5mm is this relay able to switch 6A/250VAC, moreover at a minimum coil power consumption.

Thin as about a block of “Domino” and still so powerful and for a reasonable price – these are narrow relays series FTR-LY. Powerful and still so easily usable even in circuits with a 5V logic … Somehow this way could be described the well proven relays of FTR-LY series.

If you´d like to use a relay of this shape, then the FTR-LY series will probably also fulfill all your expectations regarding lifetime, reliability, low power consumption and other. When selecting a suitable type, it´s good to take in mind a material of contacts – on stock we keep three types (5V, 12V and 24V DC). A novelty in our portfolio – type FTR-LYCA005V has a „V“ suffix, what means AgSnO2 + Au (0.3µm) contacts. The biggest advantage of a golden layer on contacts is a very low minimum switching current through contacts (10mA/5VDC), in comparison to types with a suffix „E“ or „Y“, which have a minimum switching current 100mA/5VDC. Types FTR-LYCA012Y and FTR-LYCA024Y have in summary the same good properties, only they´re not suitable for switching of currents below 100mA (worse self-cleaning ability of contacts).

An advantage is up to 4000VAC (coil/ contacts) isolation and an isolation distance (clearance/ creepage) is 8/ 8 mm. To a reliability even in tiny areas on a PCB also contributes a max. operating temperature up to +85°C and a low power consumption (approx. 170 mW). Types, which we keep in stock are with one changeover contact (1CO, SPDT), that´s why they can be freely used in application where you need an NO or NC contact.

Upon order, there are also available types for socket and the PCB socket (JM-6N). It´s beneficial for applications, where we want to maintain a possibility to easily exchange a relay.

Detailed description can be found in the Fujitsu FTR-LY datasheet.

Narrow but strong – relay Fujitsu FTR-LY - [Link]

2 Apr 2014

4.1.1

High color fidelity approaching an ideal is a common feature of „high CRI“ Osram LEDs with CRI up to 96.

When you recall to lessons of physics from your basic- or grammar-school, probably you´ve heard a term „black body radiation”. As we know, each object with a given temperature radiates in a wide range of wave lengths, while a maximum of a radiation depends on its temperature. We mention it because the Sun also operates on this “principle” and its spectrum (light) depends mainly on its surface temperature. Temperature of an object is also the most important factor influencing whether the light will be “warm” or “cold”, that´s why a term color (chromacity) temperature CCT is used.

Even though a portion of radiation (some wave lengths) is absorbed in atmosphere, it can be said that it is very near to a black body spectrum and it´s ideal for us in respect to a pleasant and true color perception.

There are several methods to evaluate color fidelity and one of the most important is so called CRI (color rendition index, maximum = 100). To an ideal light source with CRI =100 is very near a classic incandescent bulb, even though it´s spectrum is shifted towards warmer tones. Unfortunately a light spectrum gained from hot surfzce object also contains a large portion of thermal (infrared) radiation, what causes a low efficiency of incandescent bulbs. However LEDs deploy emission of photons on an other principle (change of electrons energy), so their surface is in fact “cold” in comparison to what temperature a black body radiator should have to gain a similar spectrum.

Modern LEDs have a high CRI, usually over 70. But among LEDs we can find types with even higher CRI (above 80) , as well as “color champions” with even higher CRI. To such champions also belong LEDs from the OSLON Square series, which we introduced to you in our article New LED OSRAM OSLON Square withstands up to 1.5A. Since then company Osram advanced in development and was able to make types with a typical CRI 96 (!), for example LCWCQAR.CC-MPMR-5J7K-1 (4500K).

Light fidelity of this LED is extremely high and such light is very suitable for lighting of areas with high requirements for a light quality, like for example: galleries, museums, shops, photographic ateliers as well as for an everyday work. Despite a high CRI, this particular type also features a considerable efficiency of 180-224 lm/700 mA and a max. current up to 1500 mA.

Among novelties from company Osram can also be found the Oslon Square 2nd generation with even betterthermal features increasing lifetime and efficiency at high temperatures. Moreover this new 2-nd version is sorted (binning) at 85°C, what ensures minimum color in a real operation.

Detailed information will provide you the OSLON Square high CRI (LCW_CQAR.CC) and Oslon Square new (GW_CSSRM1.EC) datasheets.

Almost perfect light from the Oslon Square LED - [Link]



 
 
 

 

 

 

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