Questions tagged [terminal]
A "terminal" or "terminus" means the "end"s of a circuit-component (wires, resistors, capacitors, ICs etc). According to shapes , termini known as lead, leg, screw, pin, plug, probe,contacts etc. On terminus we apply electrical connectors.
1
vote
1answer
67 views
What is the PCB name of this speaker connector?
I am designing a PCB board in EasyEDA for a DIY audio amp. I have searched in several places to find the proper technical name of this speaker connector but I could not find it.
I searched in Mouser ...
-1
votes
1answer
47 views
Does battery wear depend more on EMF voltage (capacity) or terminal voltage? (charging full slowly vs. charging fast)
Let's say there are two identical Lithium-Ion batteries. (is it any different for Ni-MH batteries?)
One gets charged at 0.1C until the EMF voltage (which is capacity-dependent) reaches 4.3V.
The ...
3
votes
3answers
127 views
What type of terminal is this
Okay, simple yet seemingly impossible question here... What type of terminal is this? It looks like exactly what we need, but I found the image on an advert for the shrink-wrap shown in the picture. ...
0
votes
2answers
84 views
Need to identify this pin / terminal
I need to identify this pin so I can order more.
RESEARCH: I've pored over Molex.com, Allied Electronics, and here with no success. I also reached out to JST and Allied directly but they were unable ...
1
vote
1answer
64 views
identify this connector - faston housing
need MFG of this connector. It is not tyco event though there are tyco fastons installed (confirmed by Tyco).
2 position faston housing. tab locks are on facing outwards.
no markings on connector
...
0
votes
1answer
46 views
Unconnected Inverting terminal of op-amp to hold a steady voltage?
I recently completed my final for my first year electrical Engineering Subject and I have the image of the question above.
I was really confused because it says when both switches are open, which ...
0
votes
3answers
286 views
Find Voltage between two terminals
I have the circuit below and I need to find the voltage between the terminals A and B, which steps do I need to follow? And if there are several methods to do so, what are they?
12
votes
1answer
1k views
Why do some toggle switches have terminals of different color?
I sometimes see three terminal rocker/toggle switches, and one terminal is a different color than the other two.
Here is an example:
(Image from ebay.com)
What does the colored terminal indicate?
0
votes
1answer
92 views
Find the Resistance between Two Terminals [closed]
Let's say R = 49 ohms, and we want to find Req between a and d, how do we do that? Do we have to find Req for the whole circuit?
-5
votes
2answers
66 views
Electrical energy saving [closed]
"You can not pay for the light! This CUTE for years was..."
I wonder, what will happen if to do what is illustrated on the picture.
I think there are two cases:
Hot terminal of left outlet connect ...
0
votes
1answer
87 views
Can I safely connect 20 Raspberry Pi Zeros to this 5V 10A power adapter
I want to connect 20 Raspberry Pi Zeros (5V, .200-.300A) to a 5V 10A power supply shown below. The setup Im planning will look like the photo below but with many more Raspberry Pis.
I posted my setup ...
3
votes
1answer
385 views
How many wires can I safely fit into this screw terminal?
I have about 40 positive and 40 negative 18 gauge wires that I am trying to connect to one DC power source.
I have a few terminal blocks to achieve this. Each terminal block has 2 rows of 12 ...
0
votes
1answer
35 views
Connecting a ring terminal to a smaller stud
This 12V DC breaker panel is meant to carry up to 100A, but provides a fairly small stud for terminal connection. The product documentation doesn't appear to indicate the stud size; it was measured ...
0
votes
0answers
29 views
Questions about this Terminal Block for Power Distribution
I purchased a kit for practicing PLC programming, and it came with a kind of terminal block for power distribution that I've never seen before, though I'm also a beginner regarding electronics. I ...
0
votes
1answer
325 views
Testing STM32 USB CDC TX and RX with 2 Linux terminals
I programmed a simple USB CDC (virtual COM port) communication on a STM32L476RG with STM32CubeMX and HAL : when the MCU receives the command "LDRT", it toggles a red LED on the board, and sends its ...
1
vote
1answer
51 views
Are the 2 terminals of an incandescent bulb lamp equivalent?
Compared to a resistor, which has 2 equivalent terminals, does an incandescent bulb lamp also have equivalent terminals?
0
votes
2answers
79 views
Is it possible to securely connect 20AWG wire to CR2 battery terminals?
I’m trying to securely connect a positive and negative 20 AWG thickness wire to each terminal of a CR2 battery.
From what I understand, they don’t make terminal connectors for these types of ...
0
votes
2answers
134 views
Hack for connecting two terminal blocks?
If I bought some of these connectors.
Is there an easy way to connect two of the green terminal blocks together? i.e. I would end up with a male to male DC adaptor.
Could I do this without having ...
1
vote
1answer
161 views
Some questions about a terminal block voltage and maximum ratings
A screw terminal distribution block is shown below:
A three phase motor driver manual specifies "connector voltage" and current for mains voltage connections for the motor. They specify current as ...
0
votes
0answers
40 views
Female crimp contacts: how to identify different sizes?
I purchased two different pairs of housings to manufacture cables that will need to plug into a PCB via mating terminals.
The first kind of housing has a spacing of 2.54 mm.
The second 5.08 mm.
So ...
0
votes
2answers
305 views
Pin identification of transistor and transformer from photo of module
From the photos of this driver board (no hands on testing, the photos are all I have to work with), how can one reason-out the E, B, and C functions of the pins (1,2,3) of the transistor, and the coil ...
3
votes
1answer
2k views
How are terminal blocks depicted in a wiring diagram?
I have started to document the electrical system in a custom machine that we own. I'm using TinyCad for the schematic and that's working OK. I also want to create wiring diagrams to represent the ...
0
votes
2answers
188 views
soldering a 12V plug cathode
I cant seem to properly solder a stranded wire to that cathode terminal. Checked the answer https://electronics.stackexchange.com/a/90605/35737 - fluxing it did not help and solder does not adhere to ...
0
votes
1answer
67 views
Wire / terminal connections
I have this power jack socket. I would like to connect wires to the terminals permanently and to have a stable connection. I searched for a connector that would fit with the terminals of the power ...
1
vote
1answer
60 views
Pad shape for spring loaded pin
I'm going to use spring loaded pins (https://www.digikey.com/products/en?keywords=811-SS-004-30-002101%20) for interconnection between miniPCIe and base board. They are going to be mounted on base ...
0
votes
3answers
139 views
Why did spilled coca-cola on a terminal strip cause this odd voltage problem?
I recently repaired a vending machine that had coca-cola spilled on a terminal strip. A 9.5V source from the strip measured correctly on a DMM when there was no load on it but dropped to 2V with its ...
0
votes
3answers
974 views
soldering wires to 12 V car plugs?
Many of the cheaper lighter adapter plugs do not come with screws for connecting the wires to them, but rather with just the bare metallic contacts - to which I am supposed to do what, solder the plus ...
0
votes
1answer
50 views
Connfly 50-mil IDC mating part (types of socket/connector pairs)
I am unable to find the right mating part (connector) for this 50-mil contact pitch (supposedly) IDC socket. The groove in this particular socket has an offset, and I am unable to find any connector ...
1
vote
0answers
70 views
Molex 5556 vs. 44476 Terminals for ATX / EPS connectors
I'm looking into terminating a custom-length power supply extension cable to make everything look nice / fit in an awkward case. While researching parts I noticed that the EPS12V v2.0 specification ...
0
votes
3answers
8k views
When do I connect to negative terminal or ground?
Easy question (or at least I think). I've installed a siren in my vehicle which calls to pull power direct from the 12 volt battery. I currently have the circuit completed by connecting to the ...
0
votes
1answer
286 views
UART in Linux: Keep sending for a long time while message is short [closed]
I have written a program which can send and then receive the message just sent from the UART port and I have connected the TXD to RXD together of the same UART port. It has three parts, which are the ...
0
votes
2answers
420 views
VHDL: Receiving Data from Terminal to FPGA using TTL
(I posted same question in stackoverflow but didn't get right answer)
I'm newbie in VHDL. So today, after UART Tx, I tried to read Datas that coming from Realterm terminal. I only wrote Rx codes to ...
1
vote
2answers
293 views
VHDL Sending Data from FPGA to TTL
I asked same question in stackoverflow but didn't get any good answer. I'm newbie in FPGAs and VHDL. This time, I m trying to send Data from FPGA to TTL. I' m using GPIO pins for TX and GND and Data ...
6
votes
1answer
587 views
What is the terminal labelled “U” in some autotransformers?
I'm trying to wire an autotransformer for usage as a speed controller for a brushless motor fan.
The terminals are quite self explanatory:
Pe for ground, ...
0
votes
2answers
3k views
Why is the plastic around my battery terminal melting?
I am using 2 dry batteries for my backup UPS. For some reason the plastic around one of the terminals of a battery is melting and producing a lot of smell. Most of the times it works fine but at some ...
0
votes
0answers
144 views
Installing (and soldering to) PTFE (teflon) Insulated Terminals
I am doing a condenser microphone board project. Now I need to install two PTFE insulated terminals (these are in the picture) to a board. The holes are a little larger than the bushing of the ...
0
votes
2answers
479 views
Power supply terminals
I've been looking around at some power supplies that I am hoping to run a 400W 48V DC motor on. Currently I am looking at this one:
Weidmuller PRO ECO 480W 42V-56V dc 10A
My questions are about ...
1
vote
0answers
208 views
Weird characters on Terminal output (Zybo-Zynq 700)(Soft Error Mitigation IP)
I'm using the Zybo board. I have a design like the following one:
On the SDK, I have a code like the following one to handle data exhange between PS Uart0 (where the SEM signals are connected, ...
0
votes
2answers
1k views
What is the difference between nodes and terminals?
So my textbook uses both of these terms but doesn't really give clear definition of each which is starting to lead to some minor confusion. I was reading a Wiki entry on ports which stated
A port ...
1
vote
3answers
635 views
Connect panel mount switch to PCB
I'm looking for more information on how to connect a panel mount switch to a PCB.
Switch Diagram:
I've read that it's generally bad to connect this kind of mechanical device directly to the PCB (...
0
votes
1answer
62 views
Bolting a steel ring terminal to a steel tab on IGBT?
This is a similar question to one answered here: what are the best practices for bolting a ring terminal to a steel panel?
However, the main difference is that I am not attaching a ring terminal to a ...
1
vote
1answer
621 views
Understanding DIN terminal block current ratings
I am making a control box for 12V 5 DC motors (~1.5 A total) and LED panels (~30 A). The system will pull ~30-35 A when it is running. Upon hearing of my project, a friend gave me some Allen Bradley ...
1
vote
2answers
204 views
Using straight connectors with screw endpoint?
I am a complete newbie to wiring but have almost completed the install of a MOSFET board on my 3D Printer. Felt it was necessary to avoid potential fires that this particular printer is known for.
I'...
1
vote
1answer
288 views
what are the best practices for bolting a ring terminal to a steel panel?
i have made several new bolted grounding points in project boxes and in my car. i don't have data on how long they last, but i been following a strategy like this to connect a ring terminal:
drill a ...
0
votes
1answer
177 views
Cannot send two digit number using realterm to xilinx microblaze through serial port
I am using the default example which can be found here.
The part of the code I am interested is this:
...
1
vote
4answers
240 views
What options are there for good Low DC Voltage, High Amperage Alligator Clip connections?
I have a 12V DC, 20A compressor for my offroad vehicle to inflate its tyres after driving on the beach. I also have high current jumper leads with large alligator clips at each end for starting cars ...
4
votes
7answers
11k views
How to memorize a diode's polarity in symbol? (self-answered)
How to memorize a diode's polarity, such as anode and cathode in symbol?
0
votes
2answers
533 views
Will RS 485 to RS 232 converter change the half duplex mode to full duplex mode?
I am using an RS 485 serial connection through which I need to send S19 files for my boot loader project. Since it is a half duplex mode of connection, I need to toggle a dedicated pin before sending ...
0
votes
2answers
122 views
Can we send a file through Half Duplex connection?
I am working on a boot loader design for a kinetis controller. I am using this Terminal application ( https://sites.google.com/site/terminalbpp/ ) . I am able to send texts like, " Hello world" ...
-2
votes
1answer
96 views
14 - Bananas and Tips: are they classified as terminals, connectors, both or neither? [closed]
Bananas and Tips:
Are they classified as terminals, connectors, both or neither?
