Questions tagged [components]

Components are the most basic elements in an electronic circuit. Characteristic is that they're in a single package. There are passive and active components, from as simple as a zero -ohm resistor to as complex as a multi-billion transistor IC.

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27 views

Different markings, same thermistors?

I have three thermistors marked as follows: SCK 053 (dark green); NTC 5D-9 (black); DSC 5D-9...
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am looking for this diy part to add with my project [closed]

am trying to build a custom rat trap and looking for this part in video. Am looking for this part just don't know the name for it, please take a look at the youtube video with the time provided and Se ...
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59 views

can you please help me to identify this smd component marked M 412 727a?

Hi please help me identify this smd component marked M 412 727a thanx
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41 views

Parameters needed to identify the correct capacitor

In a traditional power switching supply PCB like this one, (source of the image) ceramic capacitors are sometimes present as discrete components. They appear as: (source of the image) I would like ...
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80 views

Differences between 220pf 1000V capacitors

I need to replace a popped capacitor. Externally, it looks almost like (source) except for the first letter: in my case it is R and not ...
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217 views

Identification of a very strange SMD component

Could anyone help me identify what component this is? It is the white component with a black stripe. What ever it is, it appears to be a open circuit. I couldn't measure any resistance (or ...
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56 views

What is this part? (DIP, 14 PIN, Fairchild Logo, 5036516 -00 8432)

Found with a bunch of boxes with 74 Series Logic Chips. Can't find a datasheet anywhere. Text: 5036516 -00 8432 Indonesia
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61 views

What kind of IC component is this (JBN 5)? Photo

I'm playing with an Electric Fence Tester, trying to understand the schematics. I can't identify this component, due to my poor knowledge in electronic. The aim was to connect the 7 segment display ...
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1answer
103 views

Identifying a cylindrical SMD component with two banded color markings [closed]

I have been looking at google images of cylindrical smd resistors, but they don't look like the ones on my board. So my question is: What component is this? Long story: This board is a 230VAC to 11....
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68 views

Need help identifying two and three terminal SMD components

There are two kinds of components which I need to know about:
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3answers
115 views

What is the very basic electronic component to generate pulse wave (high or low) we commonly see in digital?

Very common we hear ON/OFF, HIGH/LOW, 1/0, or something similar in digital system. It is called binary. I would like to know what is the very basic component to generate such that binary system? I ...
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2answers
91 views

What is this component marking 100K?

What is this component, a capacitor, resistor or conductor? I have a portable pH meter but cannot measure alkali/basa. I think the sensor working perfectly: out 0-5V equals 0-14pH. I try to measure ...
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1answer
44 views

What is the smallest component to send HTTP requests on the Internet? [closed]

I want to build a GPS tracker to put on my bike and I would like to use the smallest components to do it. The idea is to send the GPS coordinates to an HTTP server every minutes. The problem is all ...
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1answer
52 views

50 mOhm F SMD resistor identification HELP!

I have been trying to identify this resistor so I can order replacements as several are bad in my device. It’s fairly large. 11mm x 5mm? This is an estimate in reference to the nano2 smd 7a fuse in ...
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188 views

Component Identification AHC373

I'm trying to pin down this component Googling has got me to these two but I can't work out the difference or if they match. SN74AHC373DW SN74AHC373DWR Really appreciate some help IDing it. Thanks
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I'm trying to identify a temperature sensor it was screwed into a inline heater

the probe has an adjustable screw for temperature control
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3answers
141 views

Identify components on computer motherboard - cylindrical and cube shapes

I'd like to know what components are the ones with blue numbers and the big ones behind them: The latter components I'm talking about:
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118 views

Help identifying the resistor

Can someone help me with identifying this component please? I was initially under the impression that it is a resistor but when I look at the back, it looks like a resistor with a dab of solder in ...
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70 views

What are the components of this sensor? [closed]

Attached is a schematic that looks like an accelerator or a combo sensor with plenty of inputs/output. Can you please assist in helping point out the pull up resistors, voltage regulator, and any ...
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17 views

uniform, bimodal and skewed distribution functions in pspice

As you probably know, for statistical analysis in pspice there are four distribution functions: uniform, bimodal, skewed and gaussian distribution functions. For typical parts such as resistors and ...
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Reference specification for JEDEC/Proelectron/JIS discretes?

Is there a reference specification for all the standard JEDEC/ProElectron/JIS diodes and transistors available somewhere? The BAT54 diode for example is presumably a Proelectron specified part. Every ...
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1answer
65 views

Trying to ID a failed component, almost looks like it was a halogen style bulb

I am trying to see if anyone can help me identify a component on a PCB. This device took a voltage spike on its AC line from a lightning strike on our home, and the unit is no longer working. The ...
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1answer
79 views

What electric component is this? (its on an old electric organ)

I'm trying to find out what this is and where I can buy one. To me, this looks like a capacitor, but I'm no expert. After using a multimeter, this seems to be the cause for the organ not turning on. (...
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89 views

Unknown component on PCB - rectangular, white, 4 terminals, marked 3215

I found a component, which I couldn't recognize, on a printed circuit board. Does anyone know this kind of component? Edited :The unknown components are the white squared ones. There are many of ...
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28 views

Replacing momentary button/switch on monitor control panel

There is a button that toggle inputs on my monitor and the very thin top dome/bubble came off and not I can't really press it to work, though if I use a flat head screwdriver (the diameter of the ...
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1answer
266 views

Part identification: 4 pins, 2 marked with squiggles, one each marked with + and -

This component has 4 legs. I don't know what it is, 2 of them go to VCC and GND, the rest of them I don't know. What is this thing?
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50 views

Sourcing oddball stacked USB-A connector

I'm looking for an oddball stacked USB connector to repair a piece of equipment. I can't use the standard form factor, because it won't fit into the enclosure properly. I've gone through mouser and ...
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1answer
123 views

Need help identifying pcb component

I was trying to repair the main board of a monitor (Samsung S27B750V), and after a few hours I did something I shouldn’t have, and blew this component. I have tried to search for this but I am unable ...
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940 views

Fake TL072/TL074 IC's - how does the economics of it work?

I've reached the conclusion that all my TL072's and TL074's bought via AliExpress from China are fakes. Both SMD and THT versions. Most likely they are LM324 or similar. The particular problem I've ...
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1answer
44 views

Why do PCI Express riser/adapter cards have electrical components?

I'm looking to make a custom PCI Express right angle adapter because the ones on the market don't work with my space constraints. Now, because it's basically an extension cable, I'd imagine it should ...
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99 views

How to sell excess electronic components for highest price with least effort [closed]

This question relates to Electrical Engineering with respect to the management of spare electronics parts after a production build of circuit boards. This question is specifically not being asked on ...
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69 views

Which component has been damaged? [closed]

I am an amateur playing around with the control board of my recently deceased dishwasher. Can anybody tell me what component burnt out? I believe it is the same as the one labeled 4345 on the same ...
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1answer
91 views

What is this microwave component?

I am at-home electronics hobbyist and tend to salvage majority of the components I use from old/broken items. Recently I took apart a microwave and desoldered most of the the components from it. I ...
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58 views

An electronic component differentiating the current twice with respect to time

Say a AC voltage source, V, provides current to a circuit with a resistor, R, and inductor, L. Then my equations to be solved, in terms of current will be: $$ V - Ri - L\frac{di}{dt} = 0 $$ I would ...
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1k views

Can anyone indentify this component?

I have no clue of the PCB where this component was. The reference H400 60 and a logo that is unreadable are located in the top of the package. I didn't found any datasheet or valuable information in ...
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1answer
87 views

PCB Pads vs Components Footprints in PCB design

I want to understand the process of PCB design using a software like Altium. I have come across two approaches as follows: Approach 1: While making the component parts library we make the footprints ...
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53 views

What is this component that comes with this strain gauge?

I just bought a set of foil strain gauges from RS Components: https://docs-apac.rs-online.com/webdocs/16d3/0900766b816d3523.pdf However, it's my first time working with strain gauges, and I noticed ...
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46 views

Trying to source a PCB component (a slow blow fuse I believe!)

I’ve stumbled upon this forum in a search for a replacement part for a PCB that makes up a digital ballast for a HPS light used in basil clone production. I’m handay with a soldering iron but I am ...
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66 views

RGB to YPbPr (YCbCr) conversion and bright picture issues

I'm working on a specific RGB to YPbPr (component) converter. It is supposed to connect old consoles to a modern flat 240p supportive TV. However I have an issue with luma Y output part. Here is the ...
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1answer
65 views

Component case size and spacing for ESD protection circuit

As im searching for TVS diodes, I see a 30KV rated diode array has pins RIGHT next to each other. Aren't they so close that a spark can easily jump between pins?? I read a few time that you need a ...
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2answers
83 views

Limiting logic gates input current with serial resistors reading their electrical characteristics

My application, shown in the diagram below, will have 12V/GND control lines that will arrive at the gate input pins as 'high' state or 'low' state. Datasheets has two values for input current: 10mA (...
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126 views

Alternatives to Jumpers?

I have a need to be able to connect a lead on a circuit to 1 of 5 different other leads. I think it’s obvious how I can accomplish this with jumpers or DIP switches or encoders. The wrinkle here is ...
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1answer
54 views

How to reflow a part in an infared IR rework station?

I bought a cheap chinese infrared rework station, mainly to unsolder large QFN's or QFP's from a board. The main problem with hot air is the inability to heat large areas evenly. I can easily ...
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1answer
79 views

When checking for continuity between two points on a PCB, how do I know it's not going through an inductor?

When trying to debug a non-working circuit on a PCB, it can be difficult to trace the circuit flow visually, as described in the answer to this excellent and related question: How can I reverse ...
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1answer
104 views

Identify component in 1970s vintage video game from photo

Can anyone identify these two components, marked "SKY 4433" and "2.000000 K.D.S", respecitvely? Are they capacitors, crystals, or something else? They are from a vintage 1970s ball-and-paddle-style ...
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304 views

What (if anything) are the standards for “generic” part numbers?

If I buy an MMBT4401 from Diodes, Inc., I get a 40V, 0.6A NPN transistor in a SOT-23 package. If I buy an MMBT4401 from ON semiconductor, I get a 40V, 0.6A NPN transistor in a SOT-23 package. If I buy ...
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1answer
86 views

Cleaning with less than pure IPA (isopropyl alcohol)

I want to clean a SO-DIMM memory that was contaminated with bottled drinking water. This was not "mineral water" intended for drinking. It was the high volume bottled drinking water from one of the ...
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155 views

What symbol is this?

Does anyone know what this step between the two lines mean?
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56 views

Why does moving this ammeter change the polarity of the applied voltage?

Note: I'm not an electrical engineer, I'm a materials engineer. So maybe this question has an obvious answer, but I couldn't find one with a Google search. I also have no idea if I tagged this ...
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3answers
92 views

How to classify power electronics components in 2 main groups?

I'm working on preparing a course about power electronics, and with my basic search conclusions. I thought that if it's possible or acceptable to classify the power electronics components in 2 main ...