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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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1answer
34 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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1answer
79 views

Most expensive parts [closed]

I was wondering, what is the most expensive part on Digikey - or Mouser, or any supplier. I have done research to try to figure this out but I was unable to.
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51 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
57 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 ...
3
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2answers
74 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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1answer
107 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
49 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 ...
2
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1answer
76 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
100 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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2answers
296 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
79 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 ...
3
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1answer
147 views

What symbol is this?

Does anyone know what this step between the two lines mean?
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0answers
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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2answers
75 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 ...
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1answer
26 views

Recover deleted components in proteus

I'm new in proteus. Unfortunately I delete components in PCB layout mode without attention. Is there any way to recover them? I can see all of components in ...
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1answer
53 views

Looking for the part number of the button

Installed in the Acer Aspire 2920 notebook. Does not work at all - pushing at any angle has no effect. Second button (left touchpad one) works properly. Circuit diagram lists SW-TACT-119-GP / 62....
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1answer
74 views

What is the use of a capacitor in a DC motor circuit?

I'm trying to understand all the components I need in order to drive a DC motor through an Arduino. I saw this circuit below, which has a capacitor (other sources show same circuit but without the ...
8
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2answers
894 views

Identifying weird component on PCB

In optical LIN converter PCB there is a weird element glued: A plastic ring with resin/ plastic fulfillment. Is it some sort of local coating or chip-on-board encapsulation? There are no elements in ...
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1answer
47 views

Does some components search by specs encyclopedia exist?

I'm wondering if exists some comprehensive search resource where I could find electrical components parts (resistances, inductors, diodes, capacitors, transistors etc. etc.) of most producers and ...
2
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1answer
57 views

Part with marking code “ZO” “607”

Can anyone please identify part with marking code "ZO" "607" it has 6 pins and I think the package is WLCSP.
2
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1answer
90 views

Need help identifying SMD component

This is a board from a Johnny Lightning V-bot, it has these SMD 6 pin components that just have a M03 and a dot on one of the terminals. Does anyone have a datasheet or any idea on how to ask for one ...
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1answer
41 views

part number of switching regulator component

Can somebody help me to read this component part number? i think its switching regulator. thank you.
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1answer
108 views

What is that component from the ADP5091 Schematic?

I am looking for an explanation what that component does inside of that circuit. It can be found on page 3 of the Datasheet of ADP5091: https://www.analog.com/media/en/technical-documentation/data-...
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0answers
33 views

Fixing or finding a replacement for a Potentiometer

I am trying to do a little home repair on an older set of CH Pro Rudder Pedals. These are a 3-axis USB game controller, and I have isolated the problem to one of the potentiometers in the right break ...
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2answers
80 views

Component Identification 220V

A component of a board from an appliance has failed and I would like your help identifying it, in order to replace it. Below is a picture from the board, the arrow points to the failed component:
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1answer
116 views

What kind of diode package/case is “case-17”?

The Russian company asked me to purchase several elements for the production of the device. Among the elements in the BOM there were two "5 watts" zener diodes 1N5342B at 6.8 Volts 1N5349B at 12 ...
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1answer
33 views

Altium how to remove 'ghost' ActiveBoM manufacturer link

While creating manufacturer links for a part in ActiveBoM I added the wrong part to the entry. Normally it's straight forward to remove either with right click or ...
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1answer
74 views

I need help to identify a SMD component

I want to identify a SMD component of a Nubia Z9 MAX board (NX512JMB) In the next picture you can see the red square. A 4 PIN SMD component (or 2 PIN component, I don't know). The green square I ...
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2answers
174 views

Does anyone know what this component could be?

I am currently working on an already fully assembled PCB. I want to get into Hardware Reverse Engineering and my first step would be to identify all important components. I found most of the ...
2
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2answers
137 views

Is there an easy way to find out if my 0805 SMD components are ferrite beads?

I ordered SMD 0805 components among other items and I received a package with the SMD components but there is no description at all. Also, there is no identification on the components itself. Is ...
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0answers
76 views

What do these capacitor markings mean?

Aluminum Organic Polymer Capacitor So to be really honest, I did blow an capacitor a while back by applying the wrong voltage to it, and had ever since then trying to decode this info to track down an ...
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3answers
124 views

I need help reading resistors

I've been using the Arduino starter kit recently, and for a project I require a 10 thousand ohm resistor. The kit comes with a belt of different resistors, and It has some 10k resistors but I've been ...
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0answers
60 views

Correct procedure to identify a component and obtain the datasheet

I'm not sure what should be the correct procedure to obtain a component's datasheet starting from the component's package code. I searched in the other questions, but I found mostly people asking ...
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1answer
38 views

Is the value of the inductor important in chua's circuit?

In Kennedy 92, the author gives a worked example of Chua's circuit experiment. The circuit diagram is given below: The author (in section 7.1) discuss how the value of each component might be chosen, ...
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2answers
83 views

What will happen if I use a voltmeter instead of an oscilloscope in a Chua's circuit?

Suppose I use a voltmeter instead of an oscilloscope in chua's circuit. Voltmeters only measure the average voltage over a short time period. Questions (please consider both DC and AC voltmeter, ...
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1answer
63 views

What components would I need to build a basic circuit that completes when something is pulled with a certain amount of force?

As an example, a rope tied to a tree when pulled with Y newtons would illuminate an LED but wouldn't when only pulled with X newtons. I guess what I'm looking for is a basic force meter.
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2answers
38 views

Can't identify this component from a Lancer Monitoring System DW101E

I'm trying to reverse engineer this system to try to read an adressable transducer. In this amp op configuration I don't know what this yellow component is supposed to do. The component label is: ...
2
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1answer
146 views

Identification of two components

Can you help me identify these two components? I cannot find information on them on the web. They appear to be ceramic filters of some kind. Front of Component 1: Back of Component 1: Front of ...
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0answers
36 views

Component identification: 1600A NH & FBH5AA FDMP & W10B 89F

Can't find the component by it number, they look like FETs on a fan PCB but need datasheet.
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4answers
154 views

What is this audio-related component?

This component looks like a speaker and attracts iron towards its center. The numbers here lead me nowhere; the company is some audio-related company. Shows a resistance 145 ohms.
3
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2answers
74 views

What is the difference between “SMD/SMT” and “Straight” about Mounting Direction?

I'm looking for a tactile switch for mounting on a PCB. I use Mouser to find them. https://www.mouser.jp/Electromechanical/Switches/Tactile-Switches/_/N-5g2m?P=1z0z7pt In that page, there is ...
0
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1answer
96 views

Bridge wire for soldering

I saw in a video that the person was using something he called bridge wire to solder a pcb with. I was wondering what kind if wire is used as a bridge to do the connection between components? Here ...
3
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1answer
171 views

What are these hybrids from National Semiconductor?

I found some parts in my junk drawer that I can't identify. I'm pretty sure they're National Semiconductor hybrid circuits from 1969-1970, but I have no access to a National Hybrid Products databook. ...
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0answers
59 views

How to find the right (external) ADC for an Arduino project?

there is a specific project I am trying to tackle using an Arduino, but I'm fairly new to this topic, which is why I would appreciate your help on choosing the right components and overall circuit. I ...
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0answers
37 views

Component that measures plastic bottle wall thickness?

I am on my senior year in college taking electronics engineering and currently working on a project that is a trash bin only taking in plastic bottles and giving incentives to the user depending on ...
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0answers
56 views

Smd Component identification

I was creating schematic from a pcb but could not understand what the component in the image is for. The name written on the component is L386. At first i thought that it is a voltage regulator like ...
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0answers
66 views

Spark gap schematic symbol help

I disassembled a Sharp 42" LCD TV power supply board and discovered 3 glass Spark Gap components (Gas Discharge Tube/Surge Absorbers). I haven't worked with them before and I'm curious about the ...
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1answer
110 views

Are there any electrical components which may keep electricity inside them after the device is turned off?

Is there any electrical component where electricity may remain after a device is turned off?
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97 views

Soviet Russia components need identifying

I have a KO D-8e Soviet engine which was made somewhere between the 60s and the 90s is USSR. I'm trying to bring it to life and need to find what are those 2 dead components in series. They have no ...
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2answers
169 views

Why there is no a variable-frequency crystal oscillator?

Quartz crystal oscillators have better frequency stability than tuned circuits of capacitors and inductors. However, they are used only as components with a fixed resonant frequency. Variable-...