Switching of three-phase motors or a realization of a sophisticated installation is a breeze with industrial relays Finder.
As we know, a relay is a very versatile component, able to realize also various “sequential” circuits, when for example by switching one relay we´ll switch on a target device and at the same time we´ll enable (or disable) switching of another relay. In these case, it´s an often demand for a relay to have a sufficient number of poles. Majority of such “logic” circuits can be realized even with a common 1-2 pole relays, but it´s not always economical and it also brings another costs for solution of supplying and protection of logic circuits.
- Finder 55 – miniature industrial relay for a PCB or for socket, 2-4 poles, 7-10A (switching current up to 20A), 250/400VAC,
- Finder 60 – a more robust industrial relay for a socket, 2-3 poles, 10A (switching current up to 20A), 250/400VAC,
In the series 55 can be found types which can be soldered directly into a PCB (without a socket) or to insert into some of many available sockets (for PCB, with soldering pins or on a DIN rail). Types from series 60 need to be inserted into a socket (for PCB, with soldering pins or on a DIN rail). Naturally, for eventual repair/maintanance, it´s much better to use a socket. Sockets can be equipped with metal or a plastic clip. Also exists a socket 94.94.3 with a safety separation of an input and output part. Similarly like at majority of Finder types, sockets can be equipped with optional protection and indication modules. Read the rest of this entry »
Low losses, precise design, low power consumption and moreover a very affordable price are one of several reasons saying for the signal relays from Fujitsu.
Despite a big advance in a segment of semiconductors, there are still many reasons for usage of electromechanical relays. Galvanic isolation of a driving signal from a switched signal, resistance to surges, minimum crosstalk among switched signals and a minimal or no distortion are main arguments for a classic relay.
In fact a word “classic” even isn´t appropriate, because development of relays is still in progress and it brings results in a form of small dimensions, higher lifetime, low power consumption, high isolation strength etc., that´s why many modern types overcome their predecessors quite significantly.
We´d like to focus your attention for example to series FTR-B3 and FTR-B4. Both are ultra- miniature with a low power consumption and highly reliable bifurcated gold-plated contacts. A big advantage is, that both series also contain latching types with a „zero“ power consumption, thus requiring only a short pulse at switching. In respect to miniature dimensions and an affordable price, their usage is beneficial not only for a signal transmission, but also for example for driving/ switching of various processes and similar.
Connect a signal without distortion – via a Fujitsu relay - [Link]
From time to time I get requests to make some high power switching, so I decided to design a solid-state relay that could handle a lot of different situations. The most common use for it I have is refurbishing old ceramic kilns. Since our technical life is close to the stage (both theatre and music), I also wanted it to be usable as a dimmer module. And, just for kicks, as a single phase AC motor speed controller, in case we would want that.
A solid-state relay with I2C interface - [Link]
Web-based relay controller for home automation.
Home automation is getting increasingly popular these days mainly due to reduced cost and simplicity through web or smartphone connectivity. Here’s a DIY version of web-based home automation controller that allows you to have a set of six relays connected to the end of a piece of Ethernet cable that can be accessed from a web browser anywhere from your house. You can use it to control or program the operation of lights, water pumps, or any other electrical appliances at home. The project uses Arduino (Atmega328) microcontroller and the ENC28J60 ethernet controller chipset.
Web-based relay controller for home automation - [Link]
500, 400, 300 mW are common values of coils power consumption of mid-power relays. But JV-xS settles for 200mW and operates even at 113 mW!
Power consumption of for example 500 mW is low at the first sight and it may seem, that at a power consumption of other power circuitry it somehow “disappears”. Sometimes it maybe really is a relatively negligible value, but in many cases the power consumption matters very much. Apart from a general trend of power consumption reduction, a lower consumption enables for example a longer operation from a backup source at a voltage dropout. Moreover at arrays with several relays an overall consumption easily reaches even tens of Watts, what may bring for example problems with heat dissipation in summer season and similar.
Relays Fujitsu series JV-xS are quality relays of a mid power (5A) with a maximum switching voltage of 250VAC/ 1250VDC with a very sensitive coil. Small dimensions and a low profile (only 12.5 mm) contribute to versatility of the relay. Despite small dimensions provides JV-xS a high level of safety thanks to 5000VAC isolation strength (coil/ contacts) and construction from a self-extinguishing plastic.
JV-xS series is available with DC coils from 3 to 24V (JV-3S… JV-24S). Besides common versions for 5, 12 and 24V it´s possible to find in our store also the 9V version JV-9S-KT. Uponrequest we´re able to provide you also any other available versions. Detailed information will provide you the Fujitsu JV datasheet.
In case of interest, please contact us at firstname.lastname@example.org.
Save energy with sensitive relays Fujitsu JV series - [Link]
drj113 @ instructables.com
Yep – One of those! This Instructable extends my Arduino Ethernet controller to control a set of up to 6 relays, but that’s not the neat bit. The neat bit is that there is a web based state machine in the AtMega chip so that the relays will operate in whatever sequence with whatever timing you want – all by themselves. This allows you to have a set of relays connected to the end of a piece of Ethernet cable that can be accessed from a web browser anywhere from your house.
A Remotely Programable Relay Controller - [Link]
A well known reliable PCB relay can be now found in our store in the version V23084-C2002, fully usable in demanding automotive applications.
Previous version of widely used relay V23084-C2001 we introduced to you in the article Automotive relay for PCB used by leading world producers. However after many years of production this relay has appeared in the obsolete category, that´s why we enriched our stock with its near relative – V23084-C2002-A403, TE Connectivity ordering no. 1393267-2. The difference is in the coil sensitivity and in the material of contacts. New type has a coil switching already at 5,8 V and contacts are on the AgSnO2 basis. Because of different contacts material, the maximum continuous current is 2x18A, what is in about 10% lower than at previous version, but in praxis this limitation shouldn´t occur in the most of applications. A good information is a considerably lower price of this version.
Specified temperature range corresponds to industrial range -40 to +85°C. Typical segments of usage are car alarms, door control and locking, control of seats, windows and wipers, and various other low voltage applications with higher current demands.
Detailed information will provide you the V23084-C2002-A403 datasheet. In case of interest, please contact us at email@example.com.
Favorite automotive relay V23084 in a new cloth – [Link]
It is known, that it is ideal to protect every controlled peripherial separately. DIN Rail-mounted relay interface module Finder Master Plus 39.3x integrates function of a switching and protective element into one component.
Finder Master Plus was in detail described to you in our article Relay interface module with a fuse module. Thanks to a growing interest, we incorporated to our standard stock offer the first type from this series – 39.31.0.024.0060. Despite the fact, that Finder Master Plus series offers more than for example Finder 38.51 series, the price of the new type is even more favorable. In its basic version, the Master Plus module is without a fuse holder (type 093.63, upon order). To deploy the fusing function, all that is necessary is to simply push-in this holder into the module, what connects the fuse in series with the switched circuit.
Condition of the fuse is easily visible through a window. At width of a relay module only 6.2 mm, it is an interface with a separated protection, occupying only a minimum space on the rail. Interconnections in a distribution box can be further simplified and be more transparent thanks to a possibility to use interconnection jumper links. Finder Master Plus 39.3x are available in several versions, EMR or SSR, at the type 39.3x.3 also with a leakage current suppression. Detailed information will provide you the Finder S39 datasheet.
In case of interest, please contact us at firstname.lastname@example.org
Finder Master Plus ensures it – [Link]
0.01A, 10mV but even 2A are no problem for the AxW-K series Fujitsu relay. That´s why they´re a reliable component for a linear-undistorted transfer of diverse signals.
AxW-K relay series are well-proven 2-pole relays (DPDT) reliable switching even very small signals, already from 0,01mA/10mV DC, but they won´t be scared of 1A/30VDC (0,5A/125VAC). Reliable switching is ensured by bifurcated silver-based contacts plated by gold. As, circuits for signal processing usually consist of SMD components, neither a relay intended for such applications shoudn´t be too high. With the height of only 5 mm, AxW-K relay series meet this requirement very well and a standard DIL pitch makes their usage and PCB design easier at the same time.
In the AxW-K series can be found several types – with 1.5V – 48V coils, and also bistable (latching) types (with 1 or 2 coils). Types A3W,A5W,AL-D5W-K,A12W and A24W are kept in stock, other types we´re able to provide you upon order. Further features of the AxW-K series relays result from their construction as a classic electromagnetic relay – high isolation, galvanic isolation from a control circuit, ability to transfer small signals without distortion, resistance to various surges and other. Besides telecommunication circuits, AxW-K series relays are ideal for switching of signals from a wide range of industrial detectors and sensors, audio devices and other.
Small signal relay AxW-K won’t refuse any signal - [Link]
In an effort to bring the advantages of relay logic to the modern world of miniaturized devices, research groups in various parts of the world are exploring ways to develop nanoscale mechanical relays that can be used to build process controllers. Although typically slower than semiconductor logic devices, relays have the advantage of very low quiescent power and bidirectional current flow. Nanoscale relays can additionally achieve significantly higher switching rates than their normal-scale cousins. [via]
Relay Logic Goes Nano - [Link]