Questions tagged [identification]

Identify chips, connectors, cables, and other components, from photographs and descriptions of the surrounding circuitry or equipment.

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98 views

I can't identify this component - is it a capacitor?

I thought this might be a motor start or run capacitor based on its size, but its markings aren't particularly revealing (to me). Also I'm not sure if the resistor would be typical on a motor ...
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327 views

What are the tools to identify ICs by marking?

I have two ICs and I need to discover them. I've searched for the marking on top of them, but I didn't have success. I've tried some tools on the internet (this forum included), also nothing. I used ...
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69 views

Is this a varistor? WP 270M

I can't figure out whether it's a varistor or any other non polar capacitor. Please also suggest how to test it.
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82 views

What is this white component in this circuit?

Can't figure out what is this component and also please mention about how to test it?
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23 views

Can't identify SMD aluminium caps

Hello, I need to identify two SMD Elec. caps. But I can't find specs that would match the marking on a components. Top left cap is - 35 10 16f. looks like 35V 10μF 20% Kemet but not 100% sure. ...
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1answer
70 views

Is this a standard cable? (USB Type A + unknown)

I have a cable that I cannot match with any device. My question is whether this is a standard cable, or rather a proprietary invention. On one side there is a standard USB Type A male connector. The ...
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44 views

System identification

I started learning control systems and I have a question about system identification. Let's say I want to identify DC motor. I want to control speed using a PID controller. I can model my system based ...
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87 views

What is this barrel jack plug?

It is from a German-made sewing machine pedal. It appears to be 2mm inner diameter, 5mm outer diameter on the metal but has a 6mm plastic molded ring on the end...maybe to assure it stays connected? ...
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1answer
74 views

Crimping tool where to crimp

I have a very cheap crimping tool and am trying to confirm where to crimp to ensure a good connection is made. I’m using red 18awg wire but the dot doesn’t really align with a spot like most crimpers. ...
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Name for old-style (purple-tinged) white LEDs?

Older white LEDs (ca. 2005-2010?) had a distinct purple tinge while modern ones have a spectrum much closer to a blackbody. I rather like the look of the older style and would like to purchase some ...
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1answer
36 views

TVS diode replacement - top marking P450 DEM

I got a Hikvision camera DS-2CD2332-I that was mistakenly connected to 48 V power supply instead of 12 V. I checked the board and found a TVS diode is getting hot. The power supply LED was blinking at ...
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37 views

Part identification - 231S 35L

Please does anybody know what this is? It's a small part, three legs, spacing 1/20", body dimensions cca 3x4 mm. I have no idea, Googling "231S" did not give any appropriate results. ...
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1answer
46 views

Help by identifying a smd FET in Philips Hue power supply

One of our Philips Hue lamps died recently and I found that the power supply is the reason. Two resistors burned (most likely due overvoltage from the mains). However there a SOT-23 packaged component ...
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1answer
83 views

What component is this and how can I test it?

I'm new to electronics. What is this and how can I test it?
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1answer
37 views

D246A - what kind of diode is this?

We have these diodes in the bell driver circuit of the local church. On the casing it reads D246A in cyrillic. After a quick search I found this site. I have not been able to figure out the diodes ...
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1answer
97 views

Need help to identify SMD component

Labeled D53 on PCB board for diode, SOT-89 package with marking "43." It's part of a pulse-generator section on a DC power supply, it's right by an opto-coupler. This picture looks exactly ...
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131 views

What is this 9609SB?

This IC is from a power supply for an LED domestic light This appears to be a 7 legged IC, at least it doesn’t seem to have had the 7th leg snipped. The markings seem to be ...
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81 views

What is the name of this 7-pin round data connector?

What is the name of this 7-pin round data connector? It doesn't seem to be Mini Din 7. It's on the data cable from a Ohaus Defender 7000 scale indicator to the weighing base. There are 7 pins, and ...
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46 views

What is this chip in a old wireless window security sensor?

I opened one of the old window security sensor as I'm curious what wireless technology and chipsets were used. Obviously, this is big antenna, so likely 433MHz RF. But I couldn't identify this chip? ...
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42 views

Question about component name (DrMOS?)

I'm trying to find the fault on my GTX 970 card and it seems that I have found at least one of the problems. There seems to be a DrMOS(?) that after plugging the power in is getting hot to the touch ...
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1answer
129 views

Identify PCB component from LED circuit

I'm trying to refurb a old pcb taken from a 30 year old cars indicator unit, it's a pretty simple pcb besides one component I'm unable to identify: You can see it attached to the back here before I ...
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64 views

How can I identify these capacitors?

Can someone please help me identify these? I think they are capacitors. I have no background in electrical engineering. Just trying to learn this stuff as a hobby. This came out of an audio amplifier ...
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1answer
134 views

Can somebody identify this 12" silicon wafer?

I just bought a silicon wafer off of eBay to decorate my office. The seller didn't tell/know, but I'm dead curious as to what this wafer is. Could anyone help me identify which chips should have been ...
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2answers
121 views

What could this PCB be for?

I am not sure PCB identification is on-topic for this site, please let me know if it isn't. My wife found this PCB in her bag. She thought I had given it to her, but I do not recall that at all. Does ...
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42 views

What is this dark copper-less PCB feature? [duplicate]

Excuse the title, I'm not even sure what to call it, as far as I can tell it isn't a component but a copper-less layer of PCB showing? It's on a 'Zoom H1' microphone/recorder's PCB, as seen in ...
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1answer
54 views

Part identification, 38 pins IC with HCT38540A marking

I saw this part on a local market categorized as "unknown parts". out of curiosity I searched 74HC38540, HCT38540 and <...
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3answers
114 views

What is this cylindrical black component with a wire looped through it?

Could anyone tell me what this component is? Thank you
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1answer
55 views

What do these diode part numbers mean? [duplicate]

While selecting a diode, I came across these two, which appear to be the same, save the ending part numbers after a "/" (i.e. one is 54, the other 73). I've surmised from JEDEC 609B section ...
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1answer
72 views

Nvidia 1080 ti VRM? SMD Identification

I was hoping that some of you experts could help me identify a SMD on the back of a 1080 ti FE. This item was dropped and it appears has some damage done to it. I would like to replace the missing SMD ...
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1answer
1k views

Any idea what this tool is for?

We have been doing some cleaning up out in the electronics production area and found the "mystery tool" shown in the two images below. It is made from stainless steel. The blue insulation ...
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1answer
55 views

Help identifying this damaged FFC/FPC connector

I am trying to identify this damaged connector on one of the PCBs of a Konica Minolta Vivid 910 laser 3D scanner. I wish to find a suitable match for replacement. It connects the main logic board with ...
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1answer
39 views

Help identifying the audio up/down switch in a Roku remote control

My sound down button isn't working in the Roku 3 remote control. I've opened it up to find that the rocker broke off. The Sound Up has B S marking and the Sound ...
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2answers
127 views

Identify molex connector

Anyone know what kind of connector is this?The female connector size is around 18x7 millimeters
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1answer
55 views

Identify power cable connector

I need help identifying this connector. It looks a bit like a Mate-n-Lock but I was not able to find this layout in their list. I also browsed Digi-Key, Mouser and a couple of auto parts sites, to no ...
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1answer
70 views

Help identifying IC - top marking N14D4

I've searched and searched and can't figure out what this thing is. The trace on the bottom is going to a GPIO pin on a micro controller. The top trace goes out to a serial communications line. As ...
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53 views

I thought this was a C7 type connector, but it has this significant difference

One can find this type of connector in many small personal appliances at home, usually related to those that are rechargeable. The connector appears eerily similar to a C7, but it is NOT a figure-...
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1answer
52 views

Diode identification - zener?

I’m trying to replace what I believe to be a glass zener diode which I determined was overloaded in an electronic automobile delay module. Cathode was attached to a PCB (labeled “Z1”) and the anode ...
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1answer
82 views

What are the values of these 2 resistors?

What are the values of the two highlighted resistors? Considering the brown band as tolerance and ignoring the first (black) band, I came to the conclusion that the values are 680 and 220 milliohms. ...
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1answer
123 views

Can someone briefly explain what the use of this kit is?

I have no idea what this kit would be used for. (Asking for a friend...)
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1answer
64 views

Please help me identify this connector type

Can anyone help me identify this connector types? I have tried finding this connector online and the closest one seems to be tamiya connector. But the ones I found being sold online has different ...
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1answer
65 views

What is this IC? AY7397

I'm trying to identify this IC. It's on the motherboard of an Epson 5040UB 4K HD projector. The projector tries to boot and then shuts off after 4 mins. A flir thermal image of the MB during this boot ...
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1answer
50 views

Transformer type identification

I salvaged this a transformer from a small 12v battery charger, it has 8 pins, four on one side have continuity one with the other, four on the other are two separate circuits, hope someone can help ...
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41 views

SMD component identification - possibly BJT

I found a defective SOT-23 on a broken PCB, but can't identify it. Probably a BJT, but what kind? The one on the right seems to be the same as the blown one. I would appreciate your help.
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682 views

Can you find the datasheet for this IC

Can someone help me to identify this VISHAY IC? Tips on how to do this are also welcome :). I could not find anything by searching with the numbers on top of the IC. The IC is used in a MKS 649B ...
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1answer
74 views

Which connector is it?

Could you please help me to identify this connector ? Could you please advise me a reference for a corresponding mating connector ? Additionnal information: 24 pins. 0.5 mm pitch. Edit: Successfully ...
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1answer
57 views

Unknown part identification

I am salvaging parts from a broken VCR and pulled off this. Unfortunately, I was not able to see what was written on the PCB next to it. The code written on the side is either S083 or SO83. I searched ...
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1answer
89 views

Can anyone identify what this smd component is?

It’s on a Pentax camera lens. I know it’s made by Murata. Believe there are six terminals.
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1answer
40 views

Replace magnetic sensor - help identify 3-pin IC marked “W10” and “1095”

We have an instant gas hot water system that is not initiating. I've traced it to the water flow sensor not signalling when water is flowing. After inspecting the housing, the magnet is spinning ...
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67 views

What is this miniature 2-pin D-shaped connector?

In about 1992, I built a dolls' house and bought these connectors from RS to use as ceiling roses. The picture shows the 'plug'. The plug came with a cover that screwed onto the threaded section. ...
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1answer
42 views

Printed circuit board connector identification

I have a PCB with some connectors and wanted to identify which type there are of. How do the experts approach the problem, to identify the type? For example, the picture below shows a connector, ...

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