2x FA405 TOUCH SWITCH (ON/OFF)12VDC RELAY 5A,ELECTRO CIRCUIT BOARD,ASSEMBLED KIT, US $23.70 – Picture 0

2x FA405 TOUCH SWITCH (ON/OFF)12VDC RELAY 5A,ELECTRO CIRCUIT BOARD,ASSEMBLED KIT, US $23.70 – Picture 1

2x FA405 TOUCH SWITCH (ON/OFF)12VDC RELAY 5A,ELECTRO CIRCUIT BOARD,ASSEMBLED KIT, US $23.70 – Picture 2

2x Fa405 Touch Switch (on/off)12vdc Relay 5a,electro Circuit Board,assembled Kit

US $23.70

Bangkapi, BA, Thailand
Jun 9th

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2x FK405 TOUCH SWITCH (ON/OFF)12VDC RELAY 5A,ELECTRONIC CIRCUIT BOARD, ASSEMBLED KIT (2 Pcs.) It is a night light automatic switch that facilitates people's daily life. The light automatically turns on in nighttime and turns off in daytime, so it is suitable to mount it in at the gate. The circuit consumes trifling household power supply so no extra power required at its standby condition. Technical data - A circuit capable of opening or closing by touching its contacts. - Able to reverse the operation modes according to our requirement. - Power supply : 12VDC. - Electric current consumption : 45mA. max. - Maximum load : 10A@125VAC and 5A@220VAC - IC board dimension : 3.17 in x 1.56 in. How does it work The functionality of this circuit base mainly on the flip-flop action of TR3 and TR4. There are two options of the application i.e. Purely touch switch (on-off) and semi-action. The explanation will begin with. Purely touch switch (on-off) : (J is left opened). When the circuit is first activated (by supplying the voltage) the LED remain dark. By touching the T terminal TR1 and TR2 start to conduct the current which make TR3 inaction while TR4 on the contrary begin to let the current pass through. The LED finally begin to grow. On the contrary, if the T terminal is touched again the flip-flop action of TR1 and TR2 make TR3 action while put TR4 in standby. The LED them give no light. Semi-action : (J is connected). In this mode, the T terminal must have a constant contact with the finger in order to turn the LED on. As soon as the T terminal lost contact with the finger the light from LED goes out. The explanation of why LED is on while T terminal is touched can be found in purely touch situation. When T terminal left open (no finger on T) both TR1 and TR2 are in stand by mode TR3 then begin to conduct the current which make TR4 into sleep mode. When this happen LED then shows no light. This logic is possible because of J terminal is connected. Circuit Assembly The assembly of components is shown in Fig. 2. For good looking and easy assembly, the shorter components should be first installed - starting with low resistant components and then the higher. An important thing is that diodes, electrolyte capacitors, and transistors shall be carefully assembled before mounting them onto their right anode/cathode of the IC board otherwise it might cause damage to the components or the circuit. Configuration of the anode and the cathode is shown in Fig 3. Use the soldering iron/gun not exceeding 40 watts and the solder of tin-lead 60:40 with flux within. Recheck the correctness of installation after soldering. In case of wrong position, just use lead absorber or lead extractor wire to avoid probable damage to the IC. Testing Do not connecting J to each other. Connect the power supply 12VDC to circuit. Touching T sensor 1 time, LED displays and relay works. Taking supply off and connecting J together. Connect power supply again. Now LED does not display. Touching T sensor, LED and relay is start working and will stop when touching T sensor again. Selecting desired function types, if requires 1 touch start and 1 touch stop, do not connecting J together. If requires touching switch on and untouched for switch off, connecting J together. Free Shipping Handling WORLDWIDE. The package will be shipped directly from Thailand via Economy/Standard Small package Airmail, and it will take about 11-23 Business Days (or about 2-5 Weeks) **Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility. **Please check with your country’s customs office to determine what these additional costs will be prior to bidding / buying Return Policy 100% Satisfaction Guarantee: If you are not satisfied with the product you purchased for any reason, please contact us for a return instruction within 30 days Shipping Handling costs are not refundable. Return shipping cost will be paid by buyer. We accept ONLY PayPal for payment. Contact us Please contact us by eBay message only.

Condition:	New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. ...	Brand	Future Kit
MPN	FA405
Model	FA405
Country/Region of Manufacture	Thailand
UPC	Does not apply