I have just purchased SMD LED's from China. They come on a strip. How do I remove them from the strip to use them individually?
Topic by epf321 | last reply
Hello. I am trying to make something on my car that involves putting an array of orange SMD's in a big circle, one on each side of the car. Every circle has about 85 ish SMD's, how should i connect resistors,and which ones? Can i put them in groups of 10, and put a resistor between each? I have to conect them parallel. Thanks for the help
Question by dsirotic | last reply
Hello, I recently had a tablet to repair and this SMD IC was damaged: "C03AE". I can't figure out exactly what it is. Results I got range from LDO to Power switch to overcurrent protection. Does anyone know or have the datasheet for the latter? Its SOT-25 package. The tablet works fine without the IC (can charge, work on wall adapter only, etc). Here are some voltage readings WRT to ground (pin 2) and battery at 36% charge (pin numbering as per picture) Case 1: display ON, charger not connected: Pin 1, 3 and 4: 0.00V Pin 5: 3.64V Case 2: display OFF, charger not connected Same as case 1 Case 3: display ON, charger connected Pin 1: 4.74V Pin 3 and 4: 0.00V Pin 5: 4.64V Case 4: display OFF, charger connected Pin 1: 5.11V Pin 3 and 4: 0.00V Pin 5: 4.74V Any help is greatly appreciated. Best Regards, Nawaz
Topic by Nawaz | last reply
I am just getting into SMD work for PCB's & I was curious when I am using the electric skillet method for solder reflow does the PCB have to sit on the skillet itself or can it slowly pass over & the heat that is coming up from the skillet still cause the solder to flow like it would sitting on top.
Topic by sofiadragon1979 | last reply
Hey everyone, Recently I purchased an smd LED just for learning purposes. Personally, I have no clue how to use it and where I can put it. I have read on the internet about how you can use them for reading lights, buses, planes, etc etc. They are extremely small, and only 2 very small places where I can solder wires to. I have no clue how to use this. Do you use it on a circuit board? Not using a circuit board? I have no clue. Thanks a ton, Brennn10
Topic by Brennn10 | last reply
Hi, I've taken two sets of 30 SMD Leds which were each powered by 3 AA batteries, and one set of 12 smd leds which was powered by usb. I have chopped the power supply cords off, and connected all 3 sets to one mains phone charger plug transformer thingy, rated at 5v 2000mA I think the current draw is around 1750mA so this should be safe. However, can someone tell me for sure? The charger gets warm, but has been runnning well for a couple of hours and the leds are nice and bright. This should save me a fortune on batteries.
Question by ferrismrk | last reply
Question by Pavlex4 | last reply
Question by Pavlex4 | last reply
Hello, I am looking to get a hot air reflow solder station. It will be used to mainly repair cracked solder joints on SMD-filled boards. As I gain skill I would like to start soldering SMD. I digress; does anyone know of a good entry-level hot air reflow solder station I should get? Preferably a digital one, and one that does not have the added soldering iron (already have a soldering iron....). Any advice/suggestions on what to buy is greatly appreciated.
Question by Tredlock | last reply
Question by Pavlex4 | last reply
I'm working on a project and I needed to get a PCB made. I was planning on getting it from BatchPCB, but I ran into a little problem... I'm using a NAND Flash chip, which is TSSOP48; the footprint has 6mil spacing! (BatchPCB has a 8mil minimum) The next cheapest solution would be Barebones PCB, which makes prototype PCBs without soldermask & silkscreen. I'm worried about soldering on the Flash chip, and another LQFP48. Will the lack of a soldermask make it impossible to do?
Topic by zachninme | last reply
I want to build simple amp but i have a problem, in eletronic store where i buy they dont have standard lm386 but they have SMD LM386. maybe they will get standard lm386 but its 2x more expensive then smd. So can i make amp using smd lm 386? and if i can does i need some other parts ( for standard i need 2 resistors, 1x 1k potentiometer, and 1-2 x capacitor)
Question by tealk | last reply
Hello everyone, i just salvaged some great finds i think i have a surface mount PIC16F72-1/SO and a PIC16F877A, plus a few other componets. i am wondering what do i need to be able to program and use these PIC's i have very limited knowledge on micro controlers, i am currently learning with the Arduino UNO. and help would be appreciated. and also i have salvaged some other parts kia324f "quad amp" will this work like the more commonly used op amp's i see in other instructables, ATMEL346 not sure what i can use this for. i have more parts that i am unsure of what if anything i can use them for but i dont want to bother everyone with my list =) ill try and post them a little at a time. and agian thank you in advance for your information.
Topic by omnacron | last reply
Hi ... I would like to ask : 1. how many SMD LEDs I can power from USB (in general) 2. would and USB port handle 90 of these (uk.farnell.com/avago-technologies/hsms-c191/led-smd-he-red/dp/1058373) LEDs ??? 3. Would you rather buy 2pcs of these LED STRIPS (cgi.ebay.com/45-SMD-White-LED-Strip-Lights-Lamp-Waterproof-Flexible_W0QQitemZ370324943281QQcmdZViewItemQQptZLH_DefaultDomain_0) to get the 90 pcs ??? 4. Could I power these 90 SMD LEDs from the strip by USB (after modifying it...'cose its for 12 volts). Thank you in advance, for your answers. Zholy
Question by zholy | last reply
I'm working on moding a cheap mp3 player. I want to relocate the power switch. The SMD components are tiny and I just destroyed a small component (diode) with my weller temp controlled soldering iron. Any suggestions on how to attach a small wire to a really tiny spot (1.5mm x 2mm),
Topic by ifranz
I want to know how to perfectly desolder a smd Component. I want to reuse them but cant get them i would love suggestion or advice
Topic by geekrex | last reply
What i means does solder smd part such as ic can be done , for computer motherboard, can you show me some guidlines about this. plesea.
Question by hore | last reply
I have a circuit with a tsop packaged flash memory chip. Is it possible to interface with the chip without removing it from the board and without damaging the rest of the circuit? If so, how (preferably without soldering on the board)? I am mostly concerned with how to physically connect to it. I have the datasheet to help me figure out the software portion.
Question by kidmosey | last reply
Hey everyone, I recently had an ASUS laptop to repair and after troubleshooting, found some damaged components among which is this surface mount diode (kindly see picture). I looked around for a datasheet but cannot find anything. Am also unable to find out exactly what type of diode it is from its code marking. I've had results varying from a 'leakage diode' to '3.3V zener diode'. However, I am suspecting it might be a schottky diode since it was in what looks like a boost circuit. Any help would be greatly appreciated. Code marking: 100 98FP1 j Thanking everyone in anticipation. Kind Regards, Nawaz
Topic by Nawaz | last reply
Hi, im trying to get some Led bulbs to fit in my dashbord on my car, the standard B9s fitting is ok, but the 5 SMDs get to high...is it possible to remove the top SMD, so it gets only 4 on the sides?And still get it working? http://www.e92-lighting.com/images/products/gp-ba9s-smd-5w.jpg Regards
Question by Leaded
Hi, I have buy a 6V smd led board which have12leds. Now I what to make a cheap transformer less power supply that light it in 220v ac mains. I try with a 474k capacitor with 100k resistor parallel and 4 dioads and a 1k resistor connect to the positive dc output . It works but the light of led is too low. I want a circuit like in led bulbs to drive them. Thank you.
Question by Soumojit | last reply
Hello I just bought 10 SMD white led. This lighting project is for my aquarium. I got the LEDs but now I need some newbie friendly help to connect these light and get a proper power supply for these. I don't know how much power will I be needing for them. Here are the details of the led lights from the ebay page SPECIATIONS The details were under 10 lot of smd. Voltage: 9-12V / 900mA Chip: Genesis's LED 30Mil chip Luminous Flux: 900-1000LM Output Power: 10W Light Color: Warm White 3000k-3200k Cool White 6000-6500k Beam Angle: 120-140 LED Support Material：Al Working Life: 50000h Can anyone please guide me how to wire them safely and power them with a good power supply which will allow them to utilize their full brightness. Details which confuses me is how much mah and and volt I will need for all of them. It would be good if you could give me a ebay link so that I can order it online. :)
Question by TaNviR77 | last reply
Question by ismael01 | last reply
Without destroying anything,especially the board,
Question by hore | last reply
Hi people or robots, For a project of mine I need to glue SMD leds to a transparant piece of plastic. the LEDs need to be glued face down on the plastic so the soldering contacts are facing up. I've already tried super glue (CA glue) but this didn't hold, the LEDs would pop of when the plastic was flexed a bit. What would you (the awesome instructables community) recommend? I've ordered some two part clear epoxy to give that a try, would that work?
Question by theexternaldisk | last reply
About a year ago, I came across this LED lamp that was on sale at my local Target store. It caught my eye because it had a little tray at the base of the lamp along with a USB port for charging my devices. Since the first time I plugged it in and turned it on, it makes a buzzing noise. At first it didn't bother me, but now that I am spending more time at my workbench it has become annoying. I understand it is kind of common for LED bulbs to do this because of the dimmer switch being outdated, however this lamp is not dimmable nor is it a "bulb" so to say. It's about 7-9 SMD LEDs on a circuit with a rocker switch. If it makes a difference, I do have my lamp plugged into a surge protector and don't have anything plugged into the USB port located at the base of the lamp. What can be done (other than throwing it away, of course) to stop the buzzing noise coming from the lamp? Thanks in advance!
Topic by TXVisual | last reply
Hi there, Firstly, I am a mechanical engineering student with a limited knowledge of circuits and electronics, so therefore I may be a little out of my depth. However I am very keen to learn about electronic circuits and have completed other simpler projects and that is why I am attempting this project. So onto my dilemma, I want to use my universities Shield of Arms to make a car badge for the single-seater racecar we are building as a project. However this badge won't just be a run-of-the-mill plastic car badge. I want it to be made from stainless steel (laser cut) and acrylic with the idea that I will solder a bunch of LEDs in series and when the ignition is turned on, the LEDs light up one at time until they are all lit, after which they all flash three times together and then remain lit up until the ignition is turned off. The LEDs I intend on using are 0603 SMD LEDs and the aim of this whole design is that it is reasonably thin (No more than 1/4 " or 6.35mm thick for the PCB however ideally I would like it to be as thin as is physically possible. The dimensions of the badge will be very similar to a Porsche badge (51mm by 69mm). I have included the Shield of Arms in question and also the Porsche emblem for comparison. Also price is an issue since as I am a student, I have limited resources, so if someone could point me to some cheap electronics parts shops etc it would be greatly appreciated. (I live in the United Kingdom so a lot of American shops will be unavailable to me) I don't really know how to read schematics but I do have friends working on this project who do, however if anyone can guide me in the right direction with maybe a couple of how-to's (particularly the requirements for the lighting up process) and some really good pointers, it will be very much appreciated. If I have not made myself clear I do apologise and I will be happy to explain further should you need to. Thank you all in advance. I hope to hear from you soon. H
Topic by hmacdonald1 | last reply
Question by 21century | last reply
I want to know so i can mod my ds with them. this is half of a cell phone with 19 blue leds.
Question by zack247 | last reply
Hi, i have been looking around allot on how to use a old printer control board that houses the surface mounted micro controller, I want to control various motors with it. i was wondering how do i go about programming the board or sending commands to it from the computer? the board connects with usb ther is one of those kind of square usb slots on the board.
Topic by mrn | last reply
Boy do I have a deal for you! I've been working on an uber-clock project recently (it's going to be really really awesome!), and it entails a very interesting display -- a 5x16 array of SMD LEDs.I tried making a homemade PCB, but it was impossible to use, so I'm sending my order out to a fabhouse for some real ones. While I'm at it, I'm offering you, instructablonians, the chance of a lifetime: Owning one of these awesome* boards!For $18, you get the PCB and 100 red SMD LED's! (LEDs courtesy of T3hMuffinator) -- this price pretty much covers the cost of the board & shipping.For an extra 5 bucks, I'll stuff the board with the LEDs for you.(The 5 bucks is to cover the solder paste, and the labor involved :P)It definantly needsto be stuffed with solder paste, the parts are very close together. It is litterally just the LED matrix, there are spots for it to be connected to a controller board, where the resistors would lay.EDIT: Heres the schematic, sch file, and the board.EDIT2: New board design, much much more compact! 3.15" x 1.20"! EDIT3: Just in case we get a flood of replies, I'll repeat 'Muff.He's supplying the LEDs. They're avaliable in red, white, yellow, and 1 other color. They're from [www.select-technology Select Technology] (eBay UMO88)EDIT4: I also have controller boards availible. They're basically an AtMega8, resistors, header pins, power, etc all on a board the same size as the array. (not an easy task!) They're $18, PM me fore more detailsI also have some POV boards availible. They are uber-compact, at only 0.8"x0.6"! They come with 10 SMD LEDs. They cost $5 a piece. Just add the Attiny13 & power!For $15, you get the POV PCB, the LEDs, 11 Male & 5 Female header pins, a DB-25 connector, an Attiny13, and its socket. Its everything you need to use this PCB. (Note: you need a parallel port on the back of your computer in order to use this board to program the uC)Its a very self-explaintory PCB, which makes it great. Its compact size is great for a few different thingsAn instructable is coming really soon on making/stuffing/using it, so don't dispair!---All three boards distributed by Rethinker Industries and liscenced under by-nc-sa.
Topic by zachninme | last reply
Www.phenoptix.comLEDs, resistors, Kynar wire and many new products coming soon.UK based with fast and low priced shipping worldwide.
Topic by phenoptix | last reply
So water leaked in to the General Electronic Module (GEM) on my pickup and now it's acting all funny. A/C runs when the ignition is off, randomly switching to 4L, airbag light chattering on and off, etc. I want to try and repair it. My intuition is that it just acts up when there's stray conductivity between traces/elements, so if I give it a good clean and keep it dry it should work like new.However, I noticed upon pulling it apart that there's some corrosion taking place. Can anyone suggest a good way to repair these traces/SMD resistors? I have a soldering iron but heavily oxidized things don't take solder well in my experience. Or should I just put some lacquer on it and not worry about it?Thanks!
Topic by RelaxedSoup | last reply
I bought a arduino uno and i got the smd edition i want to upload sketches to my arduino pro mini with the smd version any luck??
Question by TheGreatResistor | last reply
Hi, I just Installed Arduino UNO R3 SMD to my Windows 7 64bit. and getting avrdude: stk500_getsync(): not in sync: resp=0x00 error when uploading I'm sorry if it is a old problem solved somewhere in this forum. But last couple of hour i couldn't find it. Please see attached image for better understanding. Thanks Farness
Topic by farness | last reply
Appearance: It is a common 5mm, transparent case, LED, being different from all others only by having this very tiny square dot over its anvil, kind of covering the reflexive cavity where the semiconductor (i don't know which) gets lit up. Other: I could not light this LED whit voltages from 1.5V to 3.5V. =O It came out of a photocopying machine, and was paired with an IR LED in some kind of emitter-receiver set. Other components of this set were a pair of smd resistors and a smd trim pot. Would it be and IR receiver or photodiode? UPDATE: I've took some photos of the mysterious LED. BUT, as no macro-enabled camera was available, i had to do the ghetto-way of photography. Soo: i have photos of it compared to the IR LED, and some photos of both anvils (IR, unknown), at 200x magnifying. Here they are. BTW, i hadn't tested the suggested circuits yet. =(
Question by vinacarv | last reply
I have components from a laptop hard drive and would like to know which components on the controller board can be used to make a voltage regulator that regulates voltages at 3,6,9 and 12 volts.
Question by techfix1 | last reply