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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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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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49 views

where can consumers get custom shaped displays [closed]

Where can I as a consumer purchase O-LED or LED screens in a custom shape and dimension such as half of an ellipse or even ellipse?
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0answers
37 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
40 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
48 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
54 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
146 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
58 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
101 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
116 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
109 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
60 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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4answers
3k 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
99 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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2answers
127 views

What is this, a capacitor, if so what value. It's a mystery to me

If anyone know what kind of electrical component this is can you help me identify it please. Here is a picture, and I do t remember what I pulled it from.
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1answer
94 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
193 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
48 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
43 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
52 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
73 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
39 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
70 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
46 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
66 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
29 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
77 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
59 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
121 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
108 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
71 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
122 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
77 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
265 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, ...
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1answer
69 views

Identifying unknown old components

Could anyone tell me please what the component circled is? It have 6 pin / legs, and if it not existed anymore could you please let me know replacement / similarities? Thanks
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1answer
40 views

Copper side diagram vs component side diagram

I have to draw a simple circuit using a copper side diagram and a component side diagram. I can’t find any examples online.
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2answers
143 views

Altium Designer IPC Footprint wizard error for chip components

It is the first time I am designing a PCB with surface mount components. I am trying to generate footprints for 0805 resistors and capacitors, and 1210 capacitors using the IPC footprint wizard which ...
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1answer
89 views

What is a “reactor”?

Watching some of the restoration videos of old tube/valve devices by Mr. Carlson's Lab, I've heard him describe a circuit element called a "reactor" on several occasions - for instance here, where the ...
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1answer
41 views

Resistance transform

Is there a circuit either passive or not that can transform the value of a resistance with a fixed ratio ? For example if the input resistance to the circuit is 5000 ohm and the ratio is 50:1 , the ...
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0answers
54 views

Looking for informations & datasheet of OSS-4ES

I have an (old) dip8 component I cannot identify properly. It is quite unusual & nice so I'm looking for its datasheet or information about it. The date(s) code(s) I found seems to be 90's for ...
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2answers
1k views

What is this component thingy?

I can’t find or describe what this component looks like. Out of curiosity, what is it? I found it on a PCB for a car alarm, but it has no silk-screen label... It has a grub screw that is adjustable. ...
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1answer
73 views

Replace bad voltage regulator with another one that have lower output current

I need to replace a shorted TL750L05 +5V voltage regulator with a new one. The problem is I can not easily find a replacement part that has the same features. I found the LM2931M-5.0 but is rated at ...
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1answer
36 views

PIN diode in RF switching vs. PIN diode used as photodiode

From what I understand, there are traditional photodiode components that are designed with PIN diodes, in which the gate is activated by light saturation. For a PIN diode component made for RF ...
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1answer
50 views

How can I change component values in a premade circuit

I do projects quite frequently, but the only problem is that sometimes I don't have the right component, and it takes to long to ship. I heard that some people change the values of their components (...
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0answers
84 views

What kind of glue should I use for PCB-mounted components to increase rigidity and stress relief (not vibrations)?

I have some small boards that have various connectors, JSP, female headers etc. Those connectors and headers will be used a lot with various devices plugged in and pulled out and will get a lot of ...
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1answer
126 views

What is 8 pin tssop packed component?232/485 ethernet converter

-size = 2.9mmx3.1mm -GND pin = 1,6,7 connected -7.pin 4.7uh connected
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1answer
121 views

Can anyone identify this component? Please help me

Can anyone identify this componenet and can anyone find datasheet