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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Successor of VTI's SCP1000 Family of Absolute Pressure Sensors

VTI's SCP1000 product family is a range of ceramic capacitive pressure sensors that have reached the end of their lifespan. It has been suggested that certain sensors designed by others (like Bosch ...
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65 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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166 views

1968-ish Philips radio components question

I found a Philips radio/record player from I believe 1968 at a garage sale. I picked it up for $5. Sweet deal for me! I researched the cabinet to find it's general manufactured time frame. I've ...
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118 views

Help identifying the resistor

Can someone help me with identifying this component please? I was initially under the impression that it is a resistor but when I look at the back, it looks like a resistor with a dab of solder in ...
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66 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
126 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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79 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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103 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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46 views

Piezo Transducer - Constant weight increases sensitivity, why?

I currently have a piezoelectric transducer connected up to an Arduino in the following arrangement The piezo is normally not very sensitive, unless I tap my finger directly on the sensor, or knock ...
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36 views

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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72 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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43 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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62 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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265 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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197 views

F type female to SMA male adapter impedance question

I have a coaxial cable that I need to connect to a SMA female connect. The impedance of the cable is 75 ohms, and from online the SMA female connect is 50 ohms. Online there are a few places that sell ...
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64 views

Help in identifying two parts

I need to identify two parts that I need to replace, but I'm having a hard time doing it. These are the parts: Part 1: From my research I think it is a trigger switch (http://www.jiaben.com/en/pro....
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143 views

Trying to identify varistor values off an ancient power supply

Was tricky to get a photo with the markings visible, but as best I can tell the markings read... H L1 1502 ...The scoring down the middle is from where I ...
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2answers
119 views

Discerning between transistor types

How do you tell different semiconductors (mainly transistors, sometimes even voltage regulator ICs, etc.) apart? Do they all basically look the same; or are there visual clues to indicate a certain ...
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73 views

Identify Quad Flat package

I looked for days trying to find datasheet to this component. I concluded that this is a Quad Flat No-lead. But trying to search the marking code gets me nowhere. I did however find couple websites ...
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1answer
268 views

Tips for designing 4 pad feedthrough capacitor in Altium Designer

I'm doing a PCB design in Altium Designer where I would like to include a feedthrough capacitor from Murata (MPN: NFM18CC101R1C3D). This is a special type of capacitor with 4 physical terminals where ...
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225 views

Electronics components casing or packaging style types and diferences?

Is there any good visual guide or reference that explains the different types of casing styles like these ones that I come across every time I try to buy a component on farnell website: ...
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2k views

How to produce electricity with mechanical power/spring coil

As a home project I want to make a electricity generator which uses a spring coil, which when turned/wound(just like the mechanism in wrist watches) enough times will start unwinding and generate ...
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271 views

Indentifier smd sot23-6 mark as CASW

Can somebody indentifier this part? It is mark as CASW
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132 views

What is the official name of this item?

I have purchased this item locally in the past and basically its 5 wires aligned in parallel, and makes my circuitry much easier (eliminates the needs to manually connect 5 individual wires side-by-...
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413 views

an LM13700 can be configured as a “floating” voltage controlled resistor ; How resistor-like is it?

I want to use an LM13700 as a voltage controlled resistor, and I want it to act like a rheostat. When will it act non-linearly? The description of this circuit is on page 15 of the datasheet, and ...
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308 views

Extract firmware of an old electronic toy

I'd like to extract the firmware of an old electronic toy. Is has two electronic components, made by Texas Instruments: a PC35303NL - QB 8649, which is the main controller I guess TMP50C40AN2L - ...
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116 views

Meaning of + and - in an electronic component's part number

I have search in the internet and I could not really get an answer for this question. "What does \$\mathbf{+}\$ and \$\mathbf{-}\$ mean in an electronic component's part number?"
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111 views

Eagle: IC package variant, different pins bonded out

I'm trying to create an Eagle component for the Altera EP4CE22, which comes in BGA and SMD packages, where different pins are actually available on the outside of the package. Is it possible to reuse ...
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521 views

What is this component on my dog's door opening collar?

I am having some frustration with my dog's pet door opener. This is an off-the-shelf system from a company called HighTechPet, and the collar unit uses a coin-cell battery with a special carrier glued ...
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28 views

Different markings, same thermistors?

I have three thermistors marked as follows: SCK 053 (dark green); NTC 5D-9 (black); DSC 5D-9...
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56 views

What is this part? (DIP, 14 PIN, Fairchild Logo, 5036516 -00 8432)

Found with a bunch of boxes with 74 Series Logic Chips. Can't find a datasheet anywhere. Text: 5036516 -00 8432 Indonesia
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61 views

What kind of IC component is this (JBN 5)? Photo

I'm playing with an Electric Fence Tester, trying to understand the schematics. I can't identify this component, due to my poor knowledge in electronic. The aim was to connect the 7 segment display ...
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68 views

Need help identifying two and three terminal SMD components

There are two kinds of components which I need to know about:
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25 views

I'm trying to identify a temperature sensor it was screwed into a inline heater

the probe has an adjustable screw for temperature control
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17 views

uniform, bimodal and skewed distribution functions in pspice

As you probably know, for statistical analysis in pspice there are four distribution functions: uniform, bimodal, skewed and gaussian distribution functions. For typical parts such as resistors and ...
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Reference specification for JEDEC/Proelectron/JIS discretes?

Is there a reference specification for all the standard JEDEC/ProElectron/JIS diodes and transistors available somewhere? The BAT54 diode for example is presumably a Proelectron specified part. Every ...
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1answer
50 views

Sourcing oddball stacked USB-A connector

I'm looking for an oddball stacked USB connector to repair a piece of equipment. I can't use the standard form factor, because it won't fit into the enclosure properly. I've gone through mouser and ...
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58 views

An electronic component differentiating the current twice with respect to time

Say a AC voltage source, V, provides current to a circuit with a resistor, R, and inductor, L. Then my equations to be solved, in terms of current will be: $$ V - Ri - L\frac{di}{dt} = 0 $$ I would ...
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53 views

What is this component that comes with this strain gauge?

I just bought a set of foil strain gauges from RS Components: https://docs-apac.rs-online.com/webdocs/16d3/0900766b816d3523.pdf However, it's my first time working with strain gauges, and I noticed ...
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65 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 ...
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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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56 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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1answer
39 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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38 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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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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38 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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59 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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118 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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119 views

Does anyone know what these marine radio pot/switches are or what they do?

I enjoy re-purposing misc items and components to make neat gadgets etc. I have salvaged these two "switches" from an old marine radio. The rods on each click in and click out and rotate in both ...
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68 views

Interchangeable resistor

I have a PCB board where I am measuring the voltage drop across a resistor which is placed on the Vdd path of a small micro-controller. I would like to have a method for easily interchange the ...