Questions tagged [identification]

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

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What is this vintage 1979 IC: General Instruments PB8300 in PDIP 14 package?

In one of the drawers of electronic components I've accumulated since middle school (late 1970s), there is one integrated circuit I have so far been unable to identify (yes, only one* thanks to the ...
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54 views

Troubles reverseengineering a weight scale

I'm starting a project of wireless body scale, so I bought a scale on Amazon to see the electronics inside. The scale uses 4 load cells, a half-bridge, 4 metal electrodes, a Bluetooth module and a ...
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Need to identify faulty thermistor in order to find a like or better replacement

I have an ic with a poorly performing thermistor I'd like to replace with a more accurate, more sensitive component. The first step is finding out what thermistor I likely have or at least who made it....
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62 views

Help identifying a replacement for this discontinued LED, please?

I am looking for a replacement for a discontinued LED. The old part number is Panasonic LNJ801LPDJA, and the datasheet can be viewed here: View the Datasheet The old LED is orange in colour, however, ...
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39 views

Help identifying SMPS controller IC to change output voltage from 54v to 42v

I need a 42v DC adapter for charging a battery pack. I have this 54v DC brick from a broken PoE switch and want to change the output voltage. I've taken it apart and tried to locate the voltage ...
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What connector is this on HP 463172-001 fan?

It's a fan from an HP ProLiant server, what connector does it use?
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467 views

What electronic component is this? It says “K103M” on top

What electronic component is this? My Multi-function Tester says it is a capacitor with a value of ~8958 pF (= 8.9 nF) It says "K103M" on top of it. Could this mean that it should be 10*10^3 ...
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35 views

RF Switch Component Identification

I'm trying to identify the IC chip below, which I believe to be an RF Switch. Any help anyone can offer regarding who the manufacturer might be and/or what the part number might be would be greatly ...
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51 views

Trying to identify a electronic parts company logo SC

Have this DC power connector, and looking for the manufacturer using this logo. SC text in a parallelogram
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What is the ASBBA-001 battery connector (GoPro Fusion 360 camera)?

I am designing a PCB that will be powered by a battery. The battery model is the one used by the GoPro Fusion 360 camera. Specifically, it is the ASBBA-001 battery. I need to know which is the model ...
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39 views

Help finding replacement for diode (F4)

i do need to replace a diode that fell off / got lost on a circuit board. I do have an identical element that i used to take pictures. The diode in question is the one on the right, marked "F4&...
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53 views

SMD transistor identification - top marking ARRL 1S

I have an SMD transistor. As I tested it, I know it's a MOSFET, but the top code is ARRL 1S. All 1S are NPN transistors and I know it's surely a MOSFET. Please help find the correct part number.
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Help identifying I2C EEPROM - top marking H250 2GB 2

I have a Fujitsu server (PRIMERGY RX300 S8) with a failed I2C EEPROM on the front panel PCB. I would like to order the correct replacement components, but I am unable to identify the exact series/...
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126 views

What are the momentary switches in Dangerous Music Source?

I have a Dangerous Music Source. One of the momentary push buttons started to fail (I have to push it so hard to work that I'm afraid of breaking something else... I tried to re-solder it, but it ...
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1answer
72 views

What are these metal plates on this car battery charger/starter output and what is their purpose?

I was trying to figure out why a car battery starter/charger (input 220V, output 12V wasn't working and when I opened I try following the wires to see what the circuit is, but then I run into these ...
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Identifying 6-pin SMD from LXM05AD17M2 servo motor controller

I have LXM05AD17M2 servo motor controller and I need to replace a burnt 6 pin SMD component, but I don't know what it is. I got this picture from the internet. I circled the part which I need. Thank ...
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How do I identify transistors?

I'm a beginner hobbyist, I'm trying to get to the point where I can look at a basic circuit (physical, not a diagram) and speculate on what it does. Transistors are confusing, because there's so many ...
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67 views

Hardware ID - Variant detection with 1 Digital MCU pin

I have a board, which is the host for several different sensors. All sensors have the same 4 pin plug with the following pin-out: Pin: VDD Pin: Signal Pin: Free Pin: VSS Means, I got 1 free pin, on ...
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31 views

What transistor is this with SMD marking 72C9?

I am not sure what this part could be, and using some SMD codes on the web, didn't help. The case size is either SC70 or SOT-523
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1answer
113 views

What is this yellow component in my Samsung mains charger and what is its purpose?

What is this yellow component in my Samsung mains charger? On the top is written "DT0506C" and on the side is written "ETAOU81EBE BE 1218". Similar looking components I've found ...
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1answer
87 views

Help decode/identify/guess this blown ceramic capacitor?

My monitor's backlight died (can still see screen with torch). Found a blown ceramic disc capacitor. The problem is it's partly exploded over the values. I'm hoping people here might have a better ...
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115 views

What is this component (is it a rectifier?)

I'm currently reverse-engineering an air conditioner inverter circuit. I have stumbled upon a weird package. The thing is I can't de-solder this component, so I can't read the letters on it. Do you ...
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50 views

Resistor with silver third band

This resistor, from the AC side of a power supply board, has a silver third ring and a white fifth ring. I've never seen such component before : It reads between 8 and 12 ohms on the multimeter and ...
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1answer
59 views

SMD diode identifying marking

I need help to identify this diode, mark "AC C" I attach photos of it I think there are SOD123.The caliper said 3,2x1,64 This is how they are in the PCB. They are connected in this way.
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68 views

What is this electrical component on a Time Crisis II I/O PCB?

I have a Nanco Time Crisis II That has a bad I/O board. Power is getting to the board, but not making it to the chip on the board (activity LEDs not flashing). I’m trying to trace where there may be ...
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Identifying a Diode

I am trying to work out what diode this is. I can tell that the red spot indicates the cathode. If I use the standard color scheme for resistors I get 0904 (or 904 if the first black band is not ...
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Help identify component HP5300A

The red framed element is on a PCB of a 1973 Hewlett Packard 5300A Measuring System, Digital Multimeter Board. The double wire seems to have normal resistance. What is the screw for?
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What is this component? 1970s electronics

I broke it while trying to repair a nearby component on a 1970s board. It has two wires at one end that look like they are going to a coil and two axial wires. One of the axial wires came out with ...
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37 views

Identifying smd diode

Having a hard long time identying an smd diode, the code on it is: L F3 No access to the board datasheet. It's a xenon ballast board. Dimensions meassured: 2.3mm (length) x 1.4mm (width)
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57 views

362J04 230AP SMD SOT23-6 PWM IC on DELL LED Monitor Power Supply

Is there any way to find the datasheet for 362J04 230AP SMD SOT23-6 PWM IC of a DELL LED Monitor Power Supply? At least a close match is good. Figure 1: PCB top view Figure 2: 362J04 SMD in DELL ...
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102 views

Are these inductors or resistors and what function do they serve?

Some context: I'm trying to learn about ways to reduce EMI's effects on microcontrollers. I've got a Telemecanique logic module and decided to open it up to investigate. I found myself with these: ...
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1answer
92 views

Identify 40-pin PDIP device with top marking: TEZ C18071S 133807

I'm trying to find a data sheet for C18071S but can't find any references to this component anywhere. It's a 40pin PDIP. Any help most welcome! Edit: Added schematic. I hope this will help ...
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1answer
121 views

What kind of electronic component is this?

I am trying to repair the flash of a P900 camera, since it gives a burning smell after being used. After disassembling the flash unit, I came across this part for which I need some professional eyes ...
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46 views

Fingerprint scanner fails when magnetized

Question: Why does a fingerprint scanner fail to work when magnetized? I took the fingerprint scanner out of an old LG V30 phone because it is a scanner and a push button and is pretty. I added it to ...
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35 views

4-pin connector identification

I need some help identifying the connector on the photos. The pitch is 2mm and looks very similar to a JST PA, but I'm not really sure it's one of those as it doesn't look exactly the official photos ...
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Help Identifying an Alps Potentiometer

I am having trouble identifying this potentiometer. I am 99.9% sure it is made by Alps, less sure but somewhat thinking it is an RK097 series. It is about 25mm long overall with a roughly 12mm long ...
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1answer
77 views

In search for the part on the picture (freehand circled in yellow)

I'm on the hunt for the yellow circled component. I ripped it off after opening the toothbrush and changing the bad on/off button. Sadly i have few clues what it does:It is connected with the charging ...
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1answer
41 views

What component is I5B38?

I am in the process of repairing a circuit board. Can you give me a replacement for the component outlined in red? The imprint on the board is DZ with consecutive numbering (here DZ18). Is it maybe a ...
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38 views

Help identify waterproof tactile button cap

I’ve been searching for a special kind of tactile button cap that mounts to a panel and effectively makes it splash-proof, while still allowing the button beneath to be used. I’ve seen it on ...
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1answer
71 views

Find equivalent of a destroyed IC (voltage regulator?) - top marking 3P=4G 50Q

I’m trying to replace a damaged IC due to accidentally short circuit. But it seems like it’s impossible to find original one. How could I find an alternative? What is 3P=4G 50Q? Photo showing more ...
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1answer
43 views

Identify SMB with marking EGE

See photo of PCB and SMB with marking EGE. I cannot find any info on what the component is. Any ideas or thoughts? It appears to be on the 240V output from the relay which runs to a 15W halogen globe....
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215 views

I would like to know what this circuit is

I'm a engineer of embedded systems and I'm studying a 4G modem. The circuit has a component that I want to identify but the reference is apparently wrong. The reference printed in the circuit is ...
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62 views

SMD Component blown in earphone circuit in S9 mobile phone - please help identify and how?

Hi all, I am trying to identify the components marked "MT" and "7" in the first picture. They are in the earphone circuit of a UK Samsung S9 G960F mobile phone. The repair company ...
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93 views

Identification of SOT-23 device

I have a small SOT-23 (3 pins, transistor-like) device that burned out (shorted between 2 pins). I need to identify it so i can replace it. It belongs to an Asus mainboard and after it burned down the ...
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1answer
57 views

Need help identifying SMD DFN-6 component. Top marking 26T6 TIW 957M

I've been trying to reverse-engineer this circuit but I'm an ME, so my knowledge of electronics is limited to pretty much Arduinos. I have a simple circuit and I'm trying to identify one of the ...
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48 views

Need help for identifying SMD component

I've got a lenovo tablet (lenovo ideapad miix 300) from my friend, upon opening it, i found a burned out smd component that is the same component shown in the picture. I need help identifying this ...
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61 views

What is this 20-pin industrial connector?

I'm upgrading some pretty old (1975) industrial equipment and this exact connector is on the back panel of the control device. It's rectangular in shape, has 20 flat pins and its overall dimensions ...
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1answer
93 views

What type of rectangular chip is this? And how does one even know how to identify chips on boards?

I have a two Playstation 5 boards which are identical, but one of these chips are labeled differently (C1 and A6). What are they and what do the labels indicate and how do I source this type of chip? ...
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115 views

Mid 80's DIP8 and DIP14 Chip Identification

Working on a mid-80's engine control unit, I have spent the better part of two days finding datasheets/pinouts for two mystery chips. I originally thought they were 4000 series logic chips, but no ...
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Need help identifying antique porcelain fuse block

This is an antique 30 amp porcelain fuse block from a house, built before electricity, that was first wired around 1900. I would like to identify the manufacturer and the year of manufacture of this ...

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