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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41-pin CSP5 package specification?

I am trying to make a part that uses a, 41-pin CSP5 package, but can't find any info regarding its specification, or any dimensions, any help appreciated.
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5answers
57 views

Switching power supply only works when warm

Okay, this is a weird one. First time on this Stack Exchange, work with computer science, and have only basic electrical knowledge, so beware of any possible misunderstandings below. Some context I ...
1
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1answer
37 views

What do i need to look out for when selecting components? [on hold]

I'm pretty new to electronics as a hobby - been picking it up on and off for the past 2 years or so - and there's always one thing i always stumble and doubt myself on, how do i select components? ...
4
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3answers
121 views

Are there gaps in the 2% resistor standard values?

I was reading the Wikipedia entry for E-series resistor values, and I decided to graph the values on a log plot. The plot shows the values nearly evenly spaced, which makes sense because adjacent ...
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1answer
39 views

Need Basic component/circuit that if given the input volatage [-2,-1,0,1,2] will output, [-1,0,0,0,1]

as a hobby I'm working on a ternary computer, using very basic building block. in order to implement an half adder, I need a very basic component/circuit, that take the following input voltage, ...
0
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0answers
53 views

what is the name of this LCD Jack?

I have a PCM-9577 rev A.2 motherboard, with a 40 pin "LCD" connector. I am trying to replace the connector circled in red with an LCD to VGA adapter, so that I do not need to get another one of ...
3
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2answers
67 views

Identifying components in an electric fencer output board

I'm just looking at an electric fencer output board at the moment, it's not plugged into the fencer, I'm just testing the components are it has a fault. I'm having trouble with these here though, they ...
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1answer
85 views

Help identify part

Anyone know what this is, I need the particular part name. The photo is of an audio amplifier:
3
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3answers
59 views

MIL-Spec Differences

Recently I was following an online project guide, and ordered many components online. One of the components, a 0.10uF capacitor with 50V rating, returned some results which said they were "MIL" ...
11
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5answers
840 views

What's cheaper & faster for my lab, keep a stock of electronics components or order? [closed]

We are four electronic engineers working in a company, and we have a lab, I think we have a logistic issue with our components, this might be a basic study case: We have few racks with resistors, ...
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1answer
217 views

What is this component on electric water-pump controller?

This is an electric water-pump controller There is a component that I don't know what it is. it's marked as "RD". look: In your opinion What would it be?
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0answers
44 views

finding a voltage controllable resistor to replace 1M potentiometer in audio application

I want to replace a 1M potentiometer with some kind of remotely controllable solution. The potentiometer handles an audio signal of \$\pm9V\$. Zippering is unnacceptable in this application, so ...
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0answers
27 views

meaning of the reference of electronics component [duplicate]

i'm always curious when i read "BC547" or "BUZ71A" or "2N4004", but what does it means "BC","BUZ","2N" ? i want to learn there meaning and how and why the maker choose this name. i can't search in ...
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1answer
34 views

TVS unintentionally shorting on USB?

I had a very peculiar situation on a PCB I am working on, and the only possibility I can think of is that my assembler installed the wrong chip on my board. I'd like to present it to the forum to see ...
4
votes
3answers
245 views

How to know the part number that I want? [closed]

I am new to electronics. But I got to know how to make circuit and make it work. Problem I am facing, I need to know the part number based on my requirement. Suppose if I want to buy an AND gate ...
2
votes
1answer
164 views

Looking for a male USB B connector [closed]

I'm trying to get a connector that will connect another product as a sort of 'daughter board'. This thing has the old USB B connector on it and what I'd like to do is back it up to this connector and ...
0
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1answer
54 views

Altium Generic components

I am new to Altium designer and had a question. For all of their generic component libraries from the Altium vault they only have 0603(1608 Metric), 0805(2012 Metric) etc. From looking at ...
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1answer
60 views

Is wire-wrap for components, or just special boards and pins?

Are common components suitable for wire-wrap connections? Or is wire wrap designed for a special type of pin? I just checked some resistors and diodes and found them ranging from .5-.7mm, and the ...
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1answer
48 views

Understanding a debit card reader through RFID

I work in the bus industry and today I went to a meeting that gave me an idea for a project. In order to start the project, I need to gather a technical perspective of how the product that I saw in ...
9
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1answer
469 views

Potentiometer vs Varistor

What is the main difference between and potentiometer, rheostat and a varistor? And how do the application of the three in a circuit differ? Or to be more concise, in a variable power supply why ...
3
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1answer
76 views

What's the typical way to manage components for a team in Altium? Component libraries in a vault? SVN Database? Other?

I'm an EE for a growing company, and I'm looking for what's typical to manage components across multiple designs. When I say growing, I mean that there used to be one EE, as of last year I got added ...
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2answers
94 views

PCB Design Finding Part Equivalents

I'm currently designing a PCB in Eagle to build my own Nixie Clock. I know kits exist but I'm trying to do this from the ground up to get the experience. Nixie Tubes require 180V and I'm trying to ...
4
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1answer
70 views

What component has the reference designator RY?

I found a component designated RY8015 which I don't recognize, shown on the photo below on an LCD TV PCB (the bulb-like part next to a green radial varistor). What is it called? What is its design ...
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2answers
102 views

Which component is this?

I salvaged a few components like that from some old ISA Ethernet card (10Base2 + 10BaseT combos), many years ago. If my memory doesn't fail, those boards were replaced by 1995, I kept them, and ...
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2answers
93 views

How to source this hook socket

I've been trying to find the name, part number, manufacturer and some vendor for this hook socket. I'm not even 100% sure that is what it is called. Do you have any information about it? Anything ...
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1answer
36 views

Miniture bluetooth enabled accelerometer with API or SDK [closed]

I'm getting into electronics as a hobby. For my first hobby project I want to build something like a super simple fitbit. To achieve this I need a bluetooth enabled accelerometer. I've had a look at ...
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2answers
44 views

Question on LM2577

I have a hard time fully understanding the datasheet of LM2577. I bought this product that has a LM2577 in it and the specifications indicated by the seller that it can have a maximum output current ...
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2answers
68 views

What component is a VZ reference designator for

The board I'm looking at is a modem board from a fax machine. There are 2 identical components labeled VZ1 and VZ2 on the board, both components have F175 on the face and have 2 SMC leads. One of ...
3
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2answers
81 views

what kind of tape is used in electronic devices

I repair quite a few devices and one thing that bothers me is that when I remove some of the tape pieces they never go back down right. I was looking for some replacement tape and didn't know what to ...
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2answers
36 views

Axial component identification

Please help identify this component. It is cylindrical, with an axial configuration, and no obvious indication of which end is which. The writing on it is: K25U 104M 50V 8502 The 104M makes me think ...
10
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1answer
971 views

What is this electrical component?

Well that's a quite simple question. I tried my chance with Google Images without success and tried some lists of images to be able to know what is this component. But I don't find it and there is ...
0
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1answer
71 views

High temperature battery chemistries

I'm currently developing a solar powered data logger that sits outside in direct sunlight for a good chunk of its life. Preliminary testing has shown that the inside of the enclosure can get up to ...
0
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2answers
67 views

SCR which can conduct 230V AC at Zero gate voltage

As per the image, an operation for manual & Auto logic where manual can overwritten auto command and vice versa. The red circled area is an SCR(Silicon Controlled Rectifier). I'm looking for a ...
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1answer
45 views

Physical Part Counter Options

I run a small hobby-business that make DIY Electronics Kits. Business has picked up and I am wondering if there is some kind of machine that will do part counting. The parts types I count by hand are ...
9
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2answers
441 views

What component does the 'coupon' label refer to in terms of PCBs?

I was looking at a motherboard recently and I found a couple interestingly labelled component footprints. They're two through-hole mounted components right next to the CPU, and they seem to be called ...
19
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2answers
1k views

What is the dual of a diode?

A diode has an exponential I-V curve. To a first approximation, it will pass whatever amount of current is required to keep the voltage across it constant. Is there a passive component that will ...
0
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2answers
93 views

Sensing directional light

I am looking to detect the amount of light coming from a specific direction that lands in a specific area on a PCB. In my research, I have only found ambient light sensors and never any kind of ...
3
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2answers
323 views

How does a structural architecture know which entity to use?

So I'm following this tutorial in which they explain some basic VHDL by using a four bit adder as an example: ...
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0answers
72 views

Software to catalog / organize electronic parts [closed]

Has anybody used a program to easily categorize and catalog their electronics parts inventory? My collection is getting out of control, and it it time to do some serious organizing. Requirements: ...
1
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1answer
91 views

Why are properties of components often given at 1 kHz?

The title pretty much sums it up. Aside from DC, why are the properties of components often listed at 1 kHz? I keep hearing that it is a "standard", but why 1 kHz? This seems to be pretty common in ...
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2answers
97 views

Creating electronic parts from scratch [closed]

So I want to create my own electronic parts from scratch,I don't like buying stuff from internet because it's mostly expensive and I believe if you make it yourself its more cheaper. You might ask ...
0
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2answers
106 views

Cannot find SPICE models of audio transistors for LTSpice?

I need to simulate a circuit with the following transistors: MPS8050 OR MPS6560 AND MPS8550 OR MPS6562 But I cannot find any for LTSpice. http://ltwiki.org/ also doesn't have. TINA has these ...
22
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5answers
2k views

Resistor Mounted On Top of IC?

Recently, I've been working to repair a broken 1980 "Arp Solus" synthesizer that I acquired from a friend. I have, however, found myself confronted by an unfamiliar arrangement: some kind of resistor ...
-1
votes
1answer
44 views

I want to know when the AD9235BRUZ-65 outputs data? I cant make sense of the datasheet or find a way to simulate it

I need to know when data is output from the AD9235BRUZ-65 digital pins. I need this to create a type of handshake with a FPGA. Would appreciate any help, thanks. DATASHEET : ...
0
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1answer
47 views

Identify GSM / LTE antenna plug

From my GSM provider I have bought a stationary Internet access point from LTE. Additionaly I have bought an antenna for it. Unfortunately when I was plugging it together I have damaged the plug. ...
9
votes
6answers
754 views

memory for the simplest possible computer (Pi0K)

I'd like to build the simplest possible computer. I don't care about speed or storage, indeed having slow speed and low storage is a huge advantage as I want to build it out of transistors (ideally ...
3
votes
2answers
557 views

What are the terminals in this 6 pin potentiometer?

I want to use my 6 pin potentiometer in circuits so I want to know what all the terminals are for. I know the basic principle in the 3 pin pot. I'm completely new so please answer it in simple terms. ...
0
votes
1answer
53 views

Volume of sand in a cat box - ultrasonic sensor?

My cat is always making fun of the sand that is inside of his sanitation zone :) In order to better control the amount of sand that is present on the container I'm developing a communications circuit ...
3
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1answer
63 views

Advice needed: comparing two parts

I want to buy some 0402 SMD capacitors (well some is about 1 to 10k). I always use the method of use the cheapest part for the given specs approach. But today I ...
-1
votes
1answer
36 views

Sony STR DN1030 2nd volume control using a second Vr Encoder

First off, I am very, very new to any electronic physics/engineering. Here's my problem: I want a second remote volume control for my receiver that is wired to my desk. (I have already managed to ...