Tag Archives: soselectronic.com

Even you switch ecologically?


More exactly, we talk about switching-off a device. Marquardt 1550 Eco Switch enables this extraordinarily easily.

Do you know a situation, when a seemingly usual thing is fact not that usual… Whether it´s a car with a hybrid drive or a lot of devices which we meet every day – usually in every segment can be found something “inconspicuous” but in fact unusual and exquisite. This is exactly the case of the 1550 Eco Switch series.At the first sight – a usual rocker switch of this series is able to switch off a device in a pre-defined time or it can be switched off remotely – by a pulse (4A/250V, 10ms). Both cases result in a physical contacts disconnection, what´s advantageous from a safety point of view (total galvanic isolation and overvoltage protection) as well as from a zero power consumption point of view. In case of a remote-off version a given switch can be controlled also by the controlled device itself (which is powered through this switch). In this case it results to self “cut-off” of a device and it can be switched on again only physically by an operator. A typical example of use can be a safety function of temperature monitoring inside a device which is able to switch off itself in case of a fault.

1550 Eco Switch series can be used not only for power supply line. The contacts reliably switching even small DC voltages enable usage also for transition of various control signals and similar.

Detailed information will provide you the Marquardt 1550 Eco Switch datasheet and Marquardt 1550 versions.

Even you switch ecologically? – [Link]

“Non-breakable” interface converter combined with MCU? Wiznet is a solution.


In the last period we can see, that producers go on the way of processors combined with interface converters grouped into a single chip. Company Wiznet also goes this way.

At the end of May 2015, Wiznet launched on the market the new W7500, combining the HW TCP/IP interface converter W5x00 with an MCU. W7500 is a solution combining ARM Cortex-M0, 128kB Flash and the HW TCP/IP. It´s suitable for applications where you use TCP, UDP, IPv4, ICMP, ARP, IGMP and PPPoE. In these devices it´s usually undesired to upgrade SW resulting in resetting a device.MCU W7500 uses HW TCP/IP thus selecting data which arrived from allowed source. W7500 processes only desired data, so “only” 50 MHz is enough. That´s approximately half the power necessary for SW TCP/IP solutions and it also doesn´t require so big Flash and RAM – as illustrated on the picture.

When comparing all data with other MCU, you can notice that with a small power you can make the same things as with the Wiznet solution. This fact is associated with not only reliability and comfort but also with approximately half the price of the chip.

Please note, that parameters mentioned in the table below are substantially lower at SW TCP/IP, while HW TCP/IP is clearly winning.

To make your development easier, Wiznet has its „wikipedia“, where datasheets, schematics, news and user guides can be found.

“Non-breakable” interface converter combined with MCU? Wiznet is a solution – [Link]

Do you know, what´s a top-class programmable power supply capable of?


If you need to simulate overvoltage, slow start, fluctuations and other situations, which may occur in real life, then the TDK Lambda power supplies won´t disappoint you.

Imagine a laboratory (testing) power supply able to provide a virtually any function. Switching on, drop-out, repeated switch-on and many other functions, by which we can test our product in a „single shot“ – those are programmable laboratory power supplies from company TDK Lambda. Perhaps the biggest advantage of programmable power supply is the fact, that there´s no need to adjust, watch, set at testing itself. It´s obvious that this sophisticated device is feelingly more expensive than usual laboratory power supplies, however it´s able to bring enormous time savings and reliability into your work.
In majority of cases it´s possible to reach simulation of a real-life voltage fluctuations, dropouts, disturbances,… This „dynamic“ testing is also able to discover the risk of „freezing“ of your product (undervoltage lockout) at a short-time undervoltage..

Company TDK Lambda belongs to the very top in this segment and its devices provide a literally unlimited possibilities of usage, configuration and control. Whether it´s extremely fast response, possibility of a parallel operation of several units, control over LAN,USB, RS485, GPIB,… almost all possibilities and options known in this field can be found in the TDK Lambda power supplies.

Main series:

  • Z+ (200-800W) – extraordinarily low and compact series. Arbitrary functions generator with 16 bit resolution (+ inner memory), max. output voltage 10-650 VDC. RS232/485, USB and analogue interface. Active PFC (typically 0,99). Advanced parallel master/slave mode.
  • ZUP (200-800W) – max. out voltage 6-120V, max 132A. CC/CV, software calibration, last setting memory, active PFC. RS232/485 and analogue interface.
  • GENESYS (750-15000W) – extraordinary reliability and power. Max 650V, max 1000A. Auto-restart or safe start (user selectable). Last setting memory, available in four sizes – GENH, GEN 1U, GEN 2U and GEN 3U. Optional USB or LAN interface and further accessories.

Possibilities of power supplies are really extensive what´s illustrated in enclosed pictures. Detailed information will provide you the catalogue of programmable laboratory power supplies as well as in the TDK Lambda powers supplies and DC-DC converters brochure.

We´re able to supply you TDK Lambda products within 4-12 weeks at advantageous conditions.

Do you know, what´s a top-class programmable power supply capable of? – [Link]

BE220 – intelligent embedded platform for even better price!




Well-proven embedded mini PC with Windows CE – BEGA220 are now available in the IP66 protection class.

Bega220 as a universal microcomputer with an OS and a 7“ touch display already found its place in many applications. Now company Bolymin launched on the market an improved version resistant to dust and water (IP66) – the BE220C module. IP66 resistance applies to a front side and a bezel, what´s in the vast majority cases fully sufficient, because in praxis the module is always installed into a target device.

BE220C maintains all features of the Bega220 series. Functionality, interfaces and pinout of a communication protocol are the same. BE220C is supplied with a cable for connection to a communication connector on a bottom side of the module and also with a USB reduction (for connection of a keyboard or a mouse). The module should be powered by a 12V/1-1,2A adapter with a 5,5/2,5 mm DC connector. Also supplied is the CD with a user manual, software development kit (SDK) and code examples.

BE220C can be used (similarly like Bega220) for control of any devices or processes while maintaining an advantage of an easy programming in the Windows environment and compatibility with widely available software for a PC.

Detailed information will provide you the BE220C flyer and the BEGA220 user manual.

BE220 – intelligent embedded platform for even better price! – [Link]

Gain the intelligent display module suitable also for use with Raspberry Pi




Set uLCD-43PT-PI from 4D Systems allows to use the display module in any application and in addition, also with the popular micro PC Raspberry Pi. Using the included serial adapter and connecting cord it´s possible to start programming the display module within few seconds.

Gain set of uLCD-43PT-PI in value of 150, – EUR for free!

All that is necessary is to answer us a simple question:

What is the name of the graphics processor used in display uLCD-43PT?

uLCD-43PT-PI module (driven by a Picaso processor) includes a rich set of serial commands that can accept the Raspberry PI to draw basic shapes (lines, rectangles, circles), text, images, sound and writing data to the USD. 5V power supply is taken over the bus directly from the Raspberry Pi (or PC USB port) and therefore requires no external power adapter.

The display can be programmed using the (free) software 4D Systems Workshop 4 IDE Software. To program through regular PC you need to purchase 4D programming cable. For use in real applications a quality frame 4DBEZEL-43 can be a useful. It´s a ready-made solution with brass bushings and accurately designed metal spring clips.

Gain the intelligent display module suitable also for use with Raspberry Pi – [Link]

Do you want to speed up to a “Long Term Evolution”? With Quectel modules it´s already possible…




Company Quectel brings to a market its first high-speed module EC20 which you can try yourself. More than fifty developers worked for over ten months on this module.

We´d like to share with you its parameters, as well as hints, which can make your work with this module easier – this is our biggest bonus to sale of modules from company Quectel.

Are you interested in compatibility with previous modules?

Module EC20 arises from the M10 GPRS module and the UC20 UMTS module. These modules can be designed to a PCB in a way that you have ensured variability and a possible replacement in case, that you wish to have one board for several solutions …

From theory to the praxis…

Discussions about LTE already last for some time. One LTE transmitter (800MHz) manages up to six times bigger area than one UMTS transmitter (2100MHz). LTE protocol is already from the beginning (in contrast to UMTS) written as a high-capacity with a fast response. The first phase of area coverage is usually equal to speed of UMTS uplink/downlink. After reaching almost a 100% coverage, then usually starts the second phase, which actually speeds up to current theoretical speeds of 172,8Mbps (downlink) and 57,6Mbps (uplink).

Let´s have look at frequencies

In presence, 4 bands are functional – on frequencies 800/900/1800/2100MHz and the 2600MHz band is not used so far. EC20 manages all these bands. EC20 will be produced in 2 versions, as EC20-E (for Europe) and EC20-A (for USA). Do you know that in USA also the 1559 to 1610 MHz band was approved, which however should interfere GPS signal in 1525 – 1559 MHz band, according to measurements?

And at last – advantages of EC20
  • No doubt and after experience with developers – the LCC package offering a possibility to assemble by hand or by machine.
  • Module is not the smallest LTE module in the world, but belongs to the smallest LTE ones. EC 20 also incorporates implemented GPS/GLONASS receiver.
  • Supports MIMO technology – multiple-input multiple-output, i.e. – multi antenna systems.
  • The EC20 module is able to communicate via USB port in Windows, LINUX, as well as in Android.
Frequently discussed eCall

The EC20 module also supports „emergency call“. In the time of creation of this article it was decided that eCall will be compulsory in vehicles from April 2018. In every way, company Quectel is already prepared and supports this system in almost all its modules.

The eCall function also related to another advantages and functions in the module, for example:

  • Low power consumption
  • High RF power and high sensitivity <-108.5dBm
  • Fimware can be updated remotely – DFOTA (firmware over the air)

Do you want to speed up to a “Long Term Evolution”? With Quectel modules it´s already possible… – [Link]

Add a fuse where it´s desirable




Without problems and directly at connecting a device. How? With a new Euroclamp MPF03 terminal block with integrated fuse holder.

Nowadays, when “almost everything” works on electricity we can see still more devices connected to mains line. That´s why it often happens, that many small-power devices are connected to one (circuit breaker fused) line. To increase a safety, it´s usually advantageous to fuse particular devices separately – for example by small glass fuses. Somewhere it´s advantageous on a panel or directly on a PCB, elsewhere directly in a control relay interface module and in many cases directly in a place of connection.

For this purpose a novelty in our offer is very suitable – 3-pole terminal block MPF03-10, where one of poles is fused by a glass tube fuse 5x20mm. In praxis it can look so, that on a place where you so far used a classic (“chocolate”) terminal block, you can use MPF03 and insert a suitable fuse.

In the MPF series can be found series with 1-5 poles. As already a name says, pin spacing (pitch) of the MPF series is 10mm. On stock we have the 3-pole version MPF03-10 ideally suitable for mains line appliances (L,N,PE). Exact dimensions and further parameters can be found in the Euroclamp MPF03-10 datasheet.

Add a fuse where it´s desirable – [Link]

Cliff knobs – a pleasure to touch




In our portfolio can be found quality knobs from company Cliff suitable for a wide range of potentiometers and encoders.

A device with excellent specification, quality components used, …., but a one step is still missing to reach a great overall impression – it is to use a quality and aesthetic control components.

Probably you´ll agree, that knobs for potentiometers and encoders belong to a “group of critical components”, determining a resulting look of a device. Company Cliff specializes on development and production of these components already from 1977 and considerable experience are reflected in a precise construction and a wide portfolio of components produced.

Directly from our stock, we´re able to offer you a few interesting series:

  • K87MAR – plastic two-color knob with a colored top part and a side line. Available in 8 standard color versions. Thanks to a big popularity and a mass production, their price is very affordable. User friendly, soft – “rubber-feel” surface. Excellent for color coding of potentiometers groups in equipment with many knobs. 6mm „D“ shaft.
  • K87MBR – plastic two-color knob, very similar to series K87MAR, but only a side line is in color. Affordable price and a mild “rubber-feel” surface. 6mm splined shaft or 6 mm “D” shaft.
  • K18 – universal plastic knob for electronic encoders. Available in 5 colors and 3 weight categories. In our stock can be found 2 heavier versions (35 and 50g) in a grey and black color.
  • KMK – universal aluminium knob with a machined aluminium shell and a molded plastic inner. Available in a black or natural anodized surface. Push-on installation. In our stock can be found 4 versions with a 25 mm diameter – KMK25 in a black and silver (natural) color, with a 6mm splined as well as “D” shaft.

Types for splined arbors have 3 relatively robust juts (as visible on a Picture), that´s why they´re suitable only for potentiometers with deeper splines, or with a lower splin count. From our offer they´re suitable for example for Taiwan-Alpha potentiometers and they´re not suitable for potentiometers Piher series PC16.

Further information will provide you the K87MAR, K87MBR, K18 and KMK datasheets. Upon request, we´re able to deliver you more types from the portfolio of Cliff knobs.

Cliff knobs – a pleasure to touch – [Link]

OLED displays for still better prices!


Maybe it´s the right time for you to also consider usage of OLED displays in your applications.

The most advanced display technology – OLED, goes ahead into many industrial products thanks to its advantages. From a certain point of view exactly the industrial environment properly checks features of displays and especially in critical applications extreme thermal resistance a big advantage (immediate response even in frost).

As it uses to be, new technologies are rarely cheap. In case of OLED we can say about significantly more affordable price than a few years ago. For example even despite currently disadvantageous EUR/USD exchange rate, when many components become more expensive, renowned OLED character displays from company Electronic Assembly became cheaper during last weeks.

Naturally even LCD displays still have their undisputed advantages, for example a very low power consumption (EADOG series) and depending on type also a legibility even without a backlight. However in applications where you consider OLED vs. LCD (with a backlight), in majority of cases an OLED is a better choice. OLED is a better choice mainly because of unbelievably wide viewing angle, immediate response and a great contrast, where a black is truly black.

In our offer we have character OLED displays EAW series but also other universally usable OLED displays.
Some types of the EAW series are available in 2 versions – yellow/green and ice white. Detailed information will provide you the EAW flyer and the EAW datasheet.

OLED displays for still better prices! – [Link]

TE Connectivity Power Tripple Lock – locked three times, for ever


Audible click, protection against backing out and disengagement together with many versions and attractive price – these are the Power Tripple Lock connectors.

Universal connectors for interconnection of leads (wire-to-wire) as well as leads to a PCB (wire-to-board) are necessary every day and practically everywhere. In industrial applications we usually need various connectors. “Various” usually means almost uncountable amount of types, that´s why it´s usually a big advantage if it´s possible the same connector for several applications. This “versatility” is considerably met by a new series of connectors Power Tripple Lock. Commercial products, industry, transportation – all these segments are addressed by Power Tripple Lock from company TE Connectivity.What does the „Tripple Lock“ mean?
As already the name says, it is a triple locking – protection against disconnection. The basic and the most important is a sophisticated design with exactly mating parts and a reliable lock. Audible click is a discreet but very useful feature contributing to a correct connector assembly.

Optional protections are „CPA“ and „TPA“

  • CPA (connector position assurance) is an optional plastic part – additional lock against mistaken disengagement.
  • TPA (terminal position assurence) is an optional plastic part used from the rear connector side (from leads) ensuring a 100% exact leads, helps precise mating and improves overall reliability and immunity to vibrations and stresses.

Connectors are available with pins in a single row (2,3,4,5), two rows (2×3,2×4,2×5,2×6) and in a matrix (3×3,3×4,3×5) with 6mm pin spacing. Basic parameters are 20A/600VAC or DC. Also interesting is the fact, that connectors are available in three material versions with a different thermal resistance (all are UL 94V-0):

  • PBT standard (-55…105°C)
  • high temperature (-55…150°C)
  • „Glow wire“ (750°C no flame) according to IEC 60335-1

Prevention against improper connectors assembly is a different colour coding of particular material versions. Another factor preventing improper connection are 4 possibilities of keying (necessary if the same connectors are in one device). Power Tripple Lock is a big family of connectors containing connectors “wire-to-wire“ (free hanging leads),“wire-to-board“ as well as panel mount versions.

Versatility of Power Tripple Lock connectors is also underlined by a wide range of usable wires cross sections in a range of 0,34-3,3mm2 (12-22 AWG). A comprehensive overview of Power Tripple Lock connectors can be found in the „Improving appliance connector designs“ flyer and in the „Quick Reference Guide“.

TE Connectivity Power Tripple Lock – locked three times, for ever – [Link]