JQC-3FF DATASHEET PDF

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I’ve tested components on board and can confirm it has: Normally closed, which means that when the relay is off a digital low “0” is received from Arduino the device is ON Out1: I am interpreting the picture of the printed circuit board of the relay module with accompanying notes as follows: Please be vary carful not to play with live circuits! Above is relay I’m using and everything works as expected using diagram below.

From the trace on the board it would seem that the middle resistor 1 kOhm is attached to the “IN” pin serving exactly this purpose. Using single 5V relay jqc-3ff-s-z – safety advice required Ask Question.

We recommend using a swappable cable to do this with, as using a relay requires you to perform some minor surgery on the appliance’s cable. Signal Vcc Ground On the appliance side there is: Sending a digital low or “0” will disable the relay. Home Questions Tags Users Unanswered. Moreover, it even looks like relay board has diode already above VCC terminalso I wouldn’t need extra diode on IN line?

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This voltage is consistent with the operating voltage on the relay”. The relay in use is: I know people recommend having resistor and transistor on IN line too, but are these necessary in this particular type of relay? I’ll already tested wiring and relay using LED before posting. Normally open, which means that when the relay is on a digital high “1” is received from Arduino the device is ON. Sign up using Email and Password. The diagrams below should help you understand the layout of the relay board.

As Ghanima was a bit more explicit I’ve marked his answer as accepted.

Thank you very much for your answer, I hope this topic will be helpful for others too. So, using Out1 dagasheet “1” will turn on the device and a “0” will turn off the device.

Xiamen Hongfa Electroacoustic JQC-3FF/12VDC-1ZS() – PDF Datasheet – Relays In Stock |

I understand such a question can sound silly for electrical engineer, but I’m software engineer venturing in electrical world and need some guidance. Email Required, but never shown.

Sending a digital high or a “1” will trigger the relay. Retrieved from ” https: Sign up using Facebook.

I am interpreting the picture of the printed circuit board of the relay module with accompanying notes as follows:.

Jqx-3ff I need to add anything else for relay to work safely and reliably?

Post as a guest Name. Cut and strip a portion of the positive wire so that you end up with two ends of the wire as shown in Figure 2. Discussion View source History.

No large currents here, nothing to worry. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

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If it does – no need for any external components. Thank you for the answer. Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

Tutorial: DFR0017 V2 Relay

The relay should have the positive wire of the device being used connected to “IN” and to “Out 1” as shown in figure 2, and any digital signal pin on the arduino end For example pin By clicking “Post Your Answer”, you acknowledge that you have read our jqc3-ff terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. This page was last modified on 13 Juneat On the Arduino side there is: Make sure the appliance to be tinckered with is unplugged from mains.

You could easily check this with an Ohmmeter or following the traces on the board. We will use “out1” for our example, using “out2” will simply reverse the logic, as explained above. Sign up or log in Sign up using Google.