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.

Filter by
Sorted by
Tagged with
0
votes
1answer
83 views

When I checking the hot terminal in the socket, multimeter shows the current through me?

I set my multimeter in AC voltage measurement, connected + wire of multimeter to the hot terminal of the electrical socket, and take - wire in my hand. Now it measures the voltage. This procedure ...
0
votes
1answer
38 views

Is it possible to implement a serial console via GDB?

Is it possible to send debugging messages from MCU to PC over SWD via GDB without interrupting the running code (ie. without using breakpoints), like we could do via UART of MCU by sacrificing 2 UART ...
3
votes
0answers
57 views

How to find the right connector?

I have gotten the task of finding an appropriate connector for our application, but given so much information there is on connectors, I don't even know which information is relevant. So this is the ...
1
vote
1answer
38 views

Type of terminal/connector to use for CAN bus on Arduino MKR CAN Shield

Probably, this is obvious to everyone, but since I am a newbie to electrical engineering I am stuck. I have two wires of a CAN bus, (CANL and CANH), and I wish to connect them to the Arduino MKR CAN ...
0
votes
0answers
26 views

What style of semi-permanent power connector for vibrating environment?

With the only constraint being that the connection is "easily" removable (e.g. not soldered, but common tools are fine), what style of power connectors work best for vibrating environments? ...
1
vote
1answer
81 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
53 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
131 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
87 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
66 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
59 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
431 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
2k 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
131 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
69 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
109 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
507 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
40 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
31 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 ...
1
vote
1answer
64 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
84 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
156 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
210 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
2answers
348 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
3k 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
216 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
71 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
64 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
141 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
2k 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
51 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
81 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
11k 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
295 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
462 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
335 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
606 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
164 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
539 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
257 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
751 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
64 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
736 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
219 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
338 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
198 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
277 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
12k 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?