Bottom View. Yueqing Qianji Relay Co,. Over 20 years,it has always stuck to enterprise spirit pf basing on credit,factualism and innovation,. Company professionally produces more than 50series and more than specifications for Qianji production technology, testing equipment,scientific managment and effective,in order to provide a reliable production line. CQC certification. Southeast Asia,Taiwan, Korea,Australia,Europe and Amercia country;they are always popular with at home and aborad customers.

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Ningbo Shenle Relay Mfg. Relays include general-purpose use relays, auto relays, high power relays, signal relays and reed relays. Products are mainly exported to India, south America and southeast Asian markets. Our company specializes in various relays and alarm products magnet contacts. Only minimal assembly is required! The relay is controlled by 5V logic through a transistor, and an LED tells you when the relay is closed.

This is a kit, so it comes as through-hole parts with assembly required, which makes for some nice soldering practice. Screw terminal connectors on either side of the board make it easy to incorporate into your project. There are some pretty beefy traces connecting the relay to the load pins, but the 3-pin terminals are only rated for 15A max!

If you plan on connecting a larger load, you'll need to solder directly to the board. As always with high current and voltage, play it safe and use your judgment when deciding how much of a load you want to put on a board -- in open airflow the PCB can handle the full 20A for a few minutes at a time, but in an enclosed area heat can build up.

Note: Please keep in mind that this board is really meant for someone with experience and good knowledge of electricity. If you're uncomfortable soldering or dealing with high voltage, please check out the IoT Power Relay. The IoT Power Relay is fully enclosed, making it a lot safer. Flyback diode includedZener recovery diode included decreases turn-off time Heavy 2 oz. It might be a couple simple solder joints, or require special reflow tools.

You might need solder wick or flux. See all skill levels Core Skill: DIY Whether it's for assembling a kit, hacking an enclosure, or creating your own parts; the DIY skill is all about knowing how to use tools and the techniques associated with them.

You may need to provide your own basic tools like a screwdriver, hammer or scissors. Power tools or custom parts are not required. Instructions will be included and easy to follow. Sewing may be required, but only with included patterns. See all skill levels Core Skill: Electrical Prototyping If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics. Your knowledge of a datasheet will only require basic features like power requirements, pinouts, or communications type.

Also, you may need a power supply that? See all skill levels Comments 21 Reviews 17 17 Comments Looking for answers to technical questions? We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page. Log in or register to post comments. Log in to post comments. It gives you proper spade terminals for the high current connections. I have replaced so many of these relays in different devices because they overloaded the bottom pins on the relay.

What are the differences between this and the previous version? The biggest difference I see is that on the output hi voltage side, there are now three connections, a common with normally closed and normally open outputs.

The previous version only had the common connection with a single output. I'm going to order a few. You can find the details here. How do I tell which is the zener and which is the flyback diode? I'm assuming the smaller one is the 1N It's super useful. Check out the hookup guide -- there are some pictures of the assembly. The latter is two bucks more expensive, but needs a lot less power to drive and switches the load on zero crossings.

The only thing this one has going is that it has on NC and one NO contact, but how often do you switch between two loads? I can get 12V, can i do that? I tested an older version of this product on 3. Give it a shot with 3. You people are finally getting better at this, but SF and others should know that you and your ilk were the subject of several discussions at the IEEE Product Safety Engineering Society symposium last month in Anaheim.

The director of OSHA's NRTL program was there and listened with interest, as this stuff has been, as of late, starting to cross from the home workshop to the work-place. Electronics solder wire including the one we sell and use in production will often have a flux core to allow better wetting and flow when you solder your parts in. The residue left after soldering is often a little sticky, slightly conductive, and may eventually corrode your board.

It's a good idea to clean the board when you are done, just make sure you let the board dry completely before connecting it to power. Customer Reviews 4. Showing results with star rating.

Show All 1 of 1 found this helpful: Excellent kit about 2 years ago by Member verified purchaser I purchased 3 beefcake relay kits for a water control project. Two of them were exactly as advertised, but the third was missing one 1k resistor and had an extra transistor.

I used a 1k from my junk box and completed the kit. They will be operating in a humid environment so durability remains to be established. I used two soldering irons - a small one for the low voltage side and a big one for the relay pins. However I would add if you are using a RPi to control this 3. I haven't had mine in service for long so I'll re-post if I have any problems in the future, but so far so good.

The LED is a nice addition. My only concern is that people could shock the crap out of themselves if this isn't properly enclosed in a box. But then again, that's what makes it fun right? Just what I needed. Have three running off an Arduino Uno to cycle power to different sensors for testing. Works great. These things are awesome about 2 years ago by Member verified purchaser Easy to assemble and fairly cheap. I have 10 of them in use in my swimming pool control system.

Keep on ticking about 2 years ago by Member verified purchaser Using four of them with an Arduino to do some testing, over , cycles in less than two weeks on each one with no problem! Cheap, easy to use, and reliable - what else could you ask for? Only feedback would be that if they are ever revisioned, it would be nice if they added ability to use a 0. Love it! I especially like the new version with both NO and NC terminals.

I don't have to modify the board for some of the applications. Great Relay! Works great! Best I seen so far about a year ago by Member verified purchaser They look like they are built to handle the rated load. Good heavy traces. Others I have seen online can't hold up.

Good design folks. What what I needed I built two of these, one works pretty reliably on 3. Switching the resistor fixed it I used a ohm. Seems it was somehow half closed, and possibly arcing inside the relay? CF replied on February 12, Hello, and thanks for the review! Relays shouldn't leak at all.

You might try cleaning any flux residue off the bottom of your board around the relay and output connector. A bit of flux there could definitely cause a small current leak. It is easy to assemble and works wonderfully. It works great with the Arduino and the Raspberry Pi.

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QIANJI China High Quality Low Price T90 PCB Relay JQX 15F 30A Relay

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Mini Power Relay (JQX-15F or T90)

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JQX-15F Datasheet

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