smd

Hello all, I have found this ceramic 0603 SMD component that is green in color (glossy green)! Usually, SMD caps are beige or brownish in color and resistors are black with markings on them but this one looks more like a regular SMD cap. What is this green ceramic component? is it a special...

Hello, I have a guitar wireless (shouldn't matter) and it seems that a capacitor has burned out (picture included). But I am not even 100% sure this is a capacitor, the markings do not look like anything I've seen. The good news is that the PCB has several other devices that appear to be the...

WOW!!!!! I guess while I was doing a memory upgrade I some how managed to bump the component off. and now doesn't power up. It just clicks, Atom resistor fix done some years ago. I would like to replace it but have no idea what part it is. Synology DS1815+ U37 ( I guess it's a power mosfet...

I'm trying to find the components of the PCB I have. But I have a problem with a 5 pin (I guess SOT23-5) component. Can someone help me abuot this? There are version1, version2 and version3 of the PCB and marking codes are AA43, AA44 and AACB respectively. There are reset button and error...

Hello, I am working on my 2018 GMC instrument cluster. It has a parasitic current draw that drains the battery within 3 days. I found this part which to me, looks like and SMD diode. It is reading "OL" in circuit and out of circuit. See attached photo. I have tried looking through the SMD Code...

Hello, I am working on my 2018 GMC instrument cluster. It has a parasitic current draw that drains the battery within 3 days. I found this part which to me, looks like and SMD diode. It is reading "OL" in circuit and out of circuit. See attached photo. I have tried looking through the SMD Code...

Hi, I have a ms-16w11 motherboard which was shorting when adapter was plugged in (light went off on adapter). I started testing and measuring and found a chip named PU15 on the schematic to be problematic. I removed the chip. When plugging the adapter back in, the laptop powers on but the screen...

hello guys, I think I might be asking a very basic question but by seeing the SMD Ic which I have got are having a dual notch and I am a bit confused with choosing it. can someone suggest to me the proper side of the notch? and which pin is to be considered as the 1 or Start? presently I am...

This is from an adblue ecu circuit for Citroen/ Peugeot cars. I need help identifying these components. Thanks for all your replies! The first one has 3 pins with the letters CG and a Y that's horizontal (on another board it shows CG with a U that's horizontal). The second one that's...

I am developing a basic switching circuit using a PIC microcontroller where the maximum drive current will be up to 2A in this case I was using BD139 but now due to my PCB has a Single-layer option I have to use SMD for it. so, please anyone suggest to me the best NPN SMD transistor for my...

Received feedback that these parts are mysteriously over-heating when sent certain commands. When switched out with comparable parts in stock> No over-heating occured . Curious if this is impacting other users of this part or not. Is it a sign that this part could be counterfeit? Is there a bad...

Hi All, Hoping that someone can put me out of my misery. I have been searching the internet for the past 5days for an answer to this question and feel like I am starting to lose my mind. Can anyone explain why the attached schematic has a 1N4148 on each of the SDI_5V, SCLK_5V and CS_5V lines...

Hello everyone, How can we calculate the voltage rating of an SMD ceramic capacitor. Is it dependent on the package size?.

QFN Device in-question * https://www.digikey.com/en/products/detail/MCP2515T-I-ML/MCP2515T-I-MLCT-ND/2601600?utm_campaign=allaboutcircuits&utm_medium=aggregator&curr=usd&utm_source=octopart Data-Read-Outs I want to test for seen on page 67 *...

Hi, I'm hoping someone can recognise this diode. I have two that need replacing in the oscillator circuit of a large switch mode power supply and would rather not guess. Searches have got me no where. See attached images. Thanks for any help.

Hello, I need some assistance identifying this smd component on an LCD inverter. It is marked DK and then QM right below it. I have another identical board which is a newer revision and the same part is marked DK however with QS below it. My preliminary research on s-manuals seems to indicate...