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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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What is the name of this component

I am a graduate Aerospace Engineering student. I need to wire a pneumatic actuator's controller and a magnetic position sensor for a small part of my research. I received a connection diagram from the ...
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1answer
23 views

EAGLE Names not showing up on board after footprint update

I added the >NAME attribute to the footprint of a device and now the names are not shown on the board. I have already tried to update the library (with library --> update all) and also the replace ...
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Can't find replacement for switch

I am trying to repair a nespresso machine(not a job, just for fun) and the PCB had the following switch: I tried to google it as "switch", "switch 4 pin", "1552", but nothing returned a switch ...
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1answer
49 views

What is the most efficient way to increase the frequency of a waveform?

More specifically, I have an electric induction kettle. From what I understand, it heats the water by sending a high frequency (voltage?) signal around ~24kHz. This high frequency signal causes a ...
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1answer
35 views

Components appelation

I found a component in a circuit called DNP0603, I have searched in the net and I did not find an explanation to that, does any one knows what it stands for ??
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1answer
347 views

Suction cup with a 1/4" TS cable?

I found this weird component at a resale store. I feel like it is some sort of pick up, but I'm not sure. Lots of things could have a quarter inch TS cable coming out of it and there are no markings ...
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1answer
61 views

What is the reason that moving iron instrument can measure both AC and DC but moving coil instrument can't?

What is the reason that moving iron instrument could measure both AC and DC but moving coil instrument can't? ( moving coil can't respond quickly as the AC changes its direction so stays at zero - is ...
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1answer
102 views

Is this a 4R9 resistor or somthing else?

After a power-peak due to a broken main electricity cable, me and my neigbours got some broken devices. At our house only my motor cycle trickle chargers were connected. And all 3 got broken :(. ...
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1answer
122 views

Why is this component that looks like a capacitor with ground lines in this circuit diagram different from a polarized capacitor? [duplicate]

What is the component that is represented with two horizontal lines like a capacitor with three Ground Chassis lines connecting them and a + at the top and a 10μ label. See picture below (top right ...
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1answer
93 views

What voltage rating does the resistor in this circuit need to be? [closed]

In this circuit: the load is protected from transient voltage spikes by the MOV, which clamps at 1kV. If the circuit experiences a 6kV spike on the mains supply, will the resistor get hit with 6kV, ...
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2answers
91 views

What is this green component from a camera flash unit?

I recently opened up an old camera. I tore it down to its flash unit. I saw this green component and I'm not sure what exactly it is. It also has a small rod which fits inside the hole. When I ...
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1answer
112 views

Identifying unusual three terminal component

I was desoldering some components from a board and found this three terminal device I have no idea what it is. The labels on the PCB were F1, F2,... which is usually reserved for fuses, but I've never ...
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119 views

Need help identifying replacement components on PCB

I have outdoor speaker that has leaked over the years and now the passive crossover inside has become corroded and the tweeters no longer work. This is a dual voice coil speaker, so it takes both ...
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2answers
68 views

Identifying this component adapter/socket

I'm sorting an old collection of electronic components, some of which I don't know what they are used for, like this one: This component is about 7 mm wide. Does anyone recognize this? Thanks in ...
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1answer
48 views

How to look for a good quality 11mm rotary encoder?

The rotary encoder attached to the wheel of my dear logitech MX1000 started glitching a few weeks ago. I took it out, tried cleaning it the best I could but it was still bad. So I went shopping ...
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30 views

Descriptions for electronic and electro-mechanical components

Does anyone know of a standard or guide for the creation of descriptions for electronic and electro-mechanical components?
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45 views

Can anybody identify this SiTel IC

I am trying to identify an IC in order to repair a circuit board. Here is a photo of the IC in question: For reference, the markings on it are: ...
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1answer
41 views

Replacement part for MAX407 op amp [closed]

Electronics noob here. I need to find a replacement part for a MAX407. I am assembling this circuit and the shop I'm buying from doesn't have the MAX407 op amp in stock. Since I don't understand all ...
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1answer
49 views

Identify part orientation

I have a part that looks like this under my microscope: and it is a TPS22810 load switch (datasheet). But, how do I know which side is which?
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1answer
65 views

Need help to identify a three lead passive component

Here's a picture of a damaged component salvaged from an old spectrum analyzer. The number on the component reads 226K & 253, which I presumed it as dual tantalum capacitors ( with three leads) of ...
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1answer
159 views

Identifying this smd component

A beginner in electronics, I have gone into an attempt in fixing an LCD screen (Lacie 324i) that wasn't switching on. I have found that it was due to a small capacitor that was dead at the level of ...
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1answer
60 views

Replacing a charged capacitor with suitable components to form equivalent circuit

If we have an initially charged capacitor (say 5V) and capacitance C, in a circuit, can we replace it with a constant voltage source of 5V and an uncharged capacitor with same capacitance C, both in ...
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2answers
103 views

Anyone know the name of this type of switch?

Does anyone know the name of the internal switch (circled in red) in this assembly? It is a latching switch, so much to close and then push again to open. I've been Googling and hunting for about 2 ...
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3answers
119 views

Switching 240VAC 1A max from 5VDC

I'm planning a device that can switch a 240VAC 1A current - most likely 0.5A but it's nice to have the head room. A relay seems the most obvious choice but given the low current it seems over the top ...
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1answer
112 views

Is this LED cover a commercial product?

I am trying to build a fork sensor. While I am OK at electronics stuff, for the first time in my life I took active role in making a finished product. Looking at our competitors designs, I noticed a ...
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0answers
61 views

Component that returns GUID when connected to two pins of a microcontroller

I am looking for the name or concept of a component that can identify itself when connected to a micro-controller like the Raspberry Pi. The component would be embedded into an object, so it should ...
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4k views

How do I identify this component? It just says 0 on it [duplicate]

Can anyone help me identify this component? It just says 0 or D on it (I think it's a zero). I tested it for conductivity with a multimeter - doesn't seem to have any (tried both polarities in case it'...
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2answers
100 views

What is this thing called

I used to use this thing to setup variable load to my AC output. It is a smoothly variable resistor, Just slide, and resistance vary smoothly unlike Decade Resistors.. But I cannot remember the exact ...
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1answer
103 views

Why do commercial components have a temperature range of -40 to 85c?

Why not -50 to 90? How was the temperature range of -40 to 85c chosen to become the industrial standard? (Some products may have a different operating temperature range, but for the majority, the ...
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1answer
210 views

Mystery component in Selfie Stick? (iPhone)

What is the component inside an iPhone selfie stick? Testing reveals it is not a transistor. We have done some probing of it and come up with the following: The mystery 3-pinned component drops the ...
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1answer
49 views

Does this headphone jack-type component exist?

For a personal project, I'm looking for kind of equipment that acts like headphone jack and plug, where the plug can be easily pulled out after applying some force on the wire. However, the problem ...
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1answer
59 views

Does the JQX-115F-Q power relay step down voltage?

Could someone help clarify how the JQX-115F-Q power relay works? I appreciate this is a about a specific component so I've included a picture to show the markings. It's the markings that has got me ...
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1answer
68 views

Help Identify SMD components

I'm trying to repair a water damaged PCB. Wondering if anyone has any ideas how to identify these two components. Thanks!
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1answer
77 views

Identify this electronic component

Hi, It is the yellow cylindrical piece. It is from a led flood light. You can see the three mains cables, two 2.2ohm resistors, a diode bridge IC, two capacitors and this yellow piece As you see, ...
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1answer
66 views

Specifying parts for Induction Heater; how to determine current requirements at transformer? [closed]

I'm working on specifying parts for the following circuit: I intend to have a very large work coil, (like 12" diameter) so I'm expecting to need a lot of power. I'm on a tight budget, though, so ...
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3answers
72 views

Parallel Capacitors

I have a power supply with two output capacitors in parallel. 16v 2700uf. Theoretically, couldn't they be replaced with one 16v or higher 5400uf or do they form some kind of quasi LC circuit via the ...
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1answer
50 views

How is the energy consumption of a ciruit component calculated?

I know that watts are equal to amps times volts, and that watts are a rate of energy consumtion. I have looked at some circuits, but I am unsure of how the total energy use is being distributed. My ...
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1answer
76 views

Strange component with marking SE-B3

I salvaged both of these parts and the one in the left has a schematic symbol that I've never seen before. I have spent hours trying to look up, but don't know what it is. The markings on it look like ...
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1answer
41 views

In Parallel resonance circuit mentioned below, is current equal for Resistor and Inductor?

The parallel capacitor will have current leading voltage by 90°. In the case of Resistor and Inductor (which are in series with each other but they both are parallel to capacitor). Now, the upper half ...
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4answers
89 views

how to choose components for boost converter

I'm relatively new to electronics and I'm trying to make a boost converter for a nixie tube watch that runs off of 3v. I'm pretty sure that the most current that will be drawn is about 70mA. I'm not ...
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1answer
63 views

Component identification request

Just bought a bunch of transistors and one supposedly to be requested as a 2N7000 general purpose mosfets or J201 FETs... Finally unpacked everything and it came in this smaller than a SOIC8 pinout, ...
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1answer
128 views

Surface Mount Springs, how are they called? [duplicate]

We are currently in the process of creating Hardware-Test-Boards where we want to "plug-in" our PCB's and do a couple of tests. Our Boards have a rather complicated shape and are mostly surface ...
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3answers
109 views

What is this component on circuit schematics? [duplicate]

It's a resistor like coloured 2 pin component from a power supply board of a home theatre, with a glass-transparent aspect. I'm a hobbyist and not into complex circuit till now... looking for an ...
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1answer
32 views

Bourns PSL Snap-In Connector?

I want to build a small console with the Bourns PSL slide potentiometers (nothing big, it's a just-for-fun project). Unfortunately, I couldn't find the right connector on their website. The datasheet ...
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1answer
54 views

Inductor power choke

I'm looking for this inductor 10 µH. Need help to recognize series model of this IC's inductor.
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1answer
78 views

Low voltage LCD glass displays

I have a simple circuit I built using a 7-segment LCD glass display and an ATTiny (just a simple timer for now). I was hoping to use the setup in a low power, single coin cell device (3.3V - 2.7V), ...
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3answers
77 views

Unknown component on encoder board

I have a DC motor with an encoder attached. In the encoder's PCB there's a component I can't recognise labeled IR1. At first I thought it was an IR LED just by it's name and it being transparent. But ...
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2answers
128 views

Uses for 49.9Ω resistors? [duplicate]

It seems that both 49.9Ω and 50Ω resistors are a thing: https://www.mouser.co.uk/Passive-Components/Resistors//N-5g9n?P=1z0wnltZ1z0wljo https://www.mouser.co.uk/Passive-Components/Resistors//N-5g9n?P=...
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1answer
78 views

Find the best components and ICs [closed]

How do a newbie find the best components ? is there site or something ? the part number is not exactly user friendly. I know there are the classics, that I suppose improve over the years, but there ...
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1answer
267 views

Need some help identifying this component

One of my remote controls died recently. I'm trying to find the problem component on the board and I believe this is it. However I'm not sure what this component type is called, and more importantly, ...