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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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Queryable open electronics database for e.g. op-amp parameters

I often want to make complex parametric searches for components, particularly op-amps. The large component sites like RS, DigiKey, etc. allow basic queries via their websites, but these are usually ...
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69 views

what is the part that can do similarly Performance according to information? [on hold]

The output will be activated when the voltage level of control pin is higher than a determined value. The signal that appears in the output is mounted on a DC value.Please mention a model for ...
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1answer
60 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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27 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
62 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
43 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
52 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
22 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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31 views

How to Determine Component Type in PCB CAD Library

I am trying to design a PCB for the first time and am using a program called PCB artist to draw out the board. It has a component library that lists part by code 74HC160, 74HC161, etc. What code ...
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15 views

IPC EEE component families

I´m designing an electronic component library and would like to group the components following the IPC standard. something similar to ESCIES, specified by group and subgroup (https://escies.org/...
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4answers
61 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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56 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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Register description of TFA9896

I'm looking for the register description of TFA9896. Unfortunately, the datasheet doesn't contain these information: https://www.nxp.com/docs/en/data-sheet/TFA9896_SDS.pdf Do you know where to find ...
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65 views

Surface Mount Springs, how are they called?

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
107 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
31 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
53 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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80 views

Identify unknown component

I opened up the sharp optical dust sensor "GP2Y1010AU0F", and below is the board for driving the IRED (third pic, AHR31) and I believe amplifying the photodiode signal (first and second pic, 16 legs S ...
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1answer
57 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
72 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
118 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
75 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
258 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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67 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
37 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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44 views

What should be the resistance in an electromagnet in a household toaster?

I have a faulty toaster, and have measured the 'resistance' across the electromagnet which holds the latch down. Said resistance is 245ohm. Is this reasonable, or would it suggest that the ...
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2answers
79 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
86 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
40 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
35 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
69 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
33 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
49 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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73 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
115 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
108 views

Can anyone identify this component? Please help me

Can anyone identify this componenet and can anyone find datasheet
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23 views

Bandpass filter severely attenuating input signal in passband

I've designed a 3rd order chebyshev passive bandpass filter with 10% BW and center frequency of 10kHz. However, when I feed it a 10kHz sine wave to the input, it immediately gets severely attenuated, ...
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1answer
55 views

Activating components one after another

I'm new with vhdl code. I have three (and) components and one (voter) component. I don't want to active those (and) components in one time, I want to active the first then, when I have the answer of ...
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1answer
733 views

Identify this component with a weight inside a cylinder

This component was pulled from a device that was used to detect movement. When I first saw this part, I thought it was an electrolytic capacitor, but upon closer inspection, I found that if I shake ...
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1answer
126 views

How does a wireless and batteryless pushbutton work?

I saw this ZBRT Transmitter for Wireless and Batteryless pushbutton and I bought one: I don't know how it works. Could anyone explain?
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1answer
63 views

Is there a female Phone Connector with 15A Contact Rating to match this male?

I've seen male phone connectors with seemingly very high voltage and contact ratings. For example the Switchcraft 188 which seemingly could operate at 240V with 15A. Is this just incidental or are ...
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3answers
85 views

38999 contacts for pcb through-hole pass through connectors

So I'm working on a board that will act as a pass-through for a m/f pair of connectors interjecting to trace off some of the contacts to connect to another device for monitoring the signals. We did ...
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2answers
82 views

What is this kind of “Multiplexer” called?

First of all I am new to electronics so i might use wrong terms. What is this electronic component called or is it even a thing (Can it be bought)? I have 10 input wires/channels for example. Only ...
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2answers
87 views

What properties should I look for in a microcontroller if I just want to work with incoming 16 bit data?

I am very new to picking microcontrollers for projects. I have a project in which I have 16-bit data coming in from an amplifier/ADC. Simply put, I would like the microcontroller (very low power and ...
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0answers
40 views

Is there a Single Component/Chip for Performing Low Voltage Cut-Off for a NiMH Battery?

I would like to build a circuit that uses a single Ni-MH AA Battery. My circuit can work well with the 1.2v that the battery supplies most of its discharging time, and I would like my circuit to stop ...
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2answers
123 views

What is the size of this microcontroller? Having trouble reading a data sheet

I am trying to find a small enough microcontroller for a project, but I am not familiar with the notation used to denote the sizes in this image: What does that mean when it says 12,20/11,80 SQ and 7,...
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0answers
101 views

Identify this circuit symbol with two overlapping circles [duplicate]

I came across some images of schematics and have never seen this component before - what is it?
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2answers
46 views

Component searching

I'm not sure this is the right way to ask this, but I'm giving it a try anyways. I'm essentially looking for a component that using a clock signal can open and close 4 other channels. ...
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Advice on connecting a Li-Po battery to SMD terminal?

I would like to connect a Li-Po battery pack with female PH connector such as the one shown below to a PCB which will use SMD devices. I have also provided the circuit diagram below and highlighted ...