Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [screw-terminal]

43 questions
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3 answers

Alternatives to screw terminals, breadboards for prototypes?

Often I want to connect components that operate at less than 5v (I mention this as it may have a bearing on the gauge of the wire?) But have an easy way to disconnect. Screw terminals are nice but they can be slow when there are multiple…
futurebird
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How to reliably secure stranded wire in terminal block?

My 18AWG stranded wire continues to come out of the terminal block it's screwed into. What are some ways that I can more reliably secure this in an industrial environment? Strip extra wire and loop/fill more of the chamber before fastening…
tarabyte
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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 positions and I am trying to minimize the number of…
Matt
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Which Eagle part to use for this 2-pin Screw Terminal?

This is my first EAGLE design and I'm looking to add some a number of 2-position screw terminals (3.5mm pitch) PRT-08084. Problem: I can find the EAGLE part for the 3-position variant named as M03SCREW_LOCK from the Sparkfun EAGLE library. However I…
Nyxynyx
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Why are some terminal blocks blue and grey in color

Looking at some terminal blocks like the one below, why are the top level positions color coded blue while the middle ones are in grey? I understand yellow-green are for ground connections. I am guessing Blue is for DC, but can't figure out what…
Nyxynyx
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1 answer

3.5mm pluggable screw terminal, but male side PCB mount

I have a few NI USB-6000 DAQs with a 3.5mm pluggable screw terminal. I want to used them in battery prototyping so I'll need to build a few unity gain differential opamps for cell voltage monitoring among other circuits. I'd like to have my PCB…
Omagasohe
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How to connect a flex ribbon cable to a screw terminal block?

Does anyone have ideas on how to mate a flex PCB with a screw terminal block? Some background: At my workplace, we're using the following Keysight DAQM900A Datalogger MUX cards: In the past we've placed the flying leads of our cables into each slot…
Noah B
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A question about type of electrical connector

I have some electronics equipment inside an enclosure and at some point many ground and supply wires needs to be joint. Focusing on the blue wires in the below photo, I soldered three wires on both sides and joint them with a terminal…
ty_1917
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Does an inexpensive screw terminal "expansion strip" exist?

I've got a messy security panel that needs cleaning up badly, as I need to connect another PCB for remote access and can't get the wires to reliably stay in place: If you look at the black, red, green, and yellow terminals, they already have three…
Dave
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How reliable are screw terminal blocks when the connected cables are allowed to sway a little bit?

2.54 Screw terminal blocks are a really convenient way to wire up devices without the need to solder a port or a jack connector. However, with all their convenience, how reliable are screw terminal blocks really? Are they suitable for…
Noideas
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What is this type of screw head for accepting test hooks connection called?

These screw heads are useful for retaining electrical connection with test hooks because of the two collars. What are these type of screws called?
hobbes33
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Pluggable terminal connector long term reliability

I'm investigating the issues related to long term reliability of pluggable terminals of "Phoenix" style. This terminals are available in a range of pitch and configurations (right angle, straight...). Look at the picture as example. In my…
Francesco
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Replacing screw terminal

I have a robot using the following screw terminal : On the input side 2x 8 awg wires coming from the battery, on the other side 2 x 3 wires for 2 motor drivers and 1 step-down that power a single board computer. There should be like 45A as peak…
LiohAu
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How to know which side of the terminal block on pcb drawing

I'm planning to use Seeed's PCBA Prototype, where they request to use their open parts library(if you want them to solder the parts for you). I came across their screw terminal block(part 3470070P1). And viewing it in Eagle, looks like this: How do…
MW_hk
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How To Connect Silver Wire Electrodes to Transimpendance Amplifier

As the title suggests, I need to connect silver electrode wires that are about 1 inch long and 1mm diameter (sticking rigidly out of a microfluidic cell) to a transimpedance amplifier. The problem is that the current coming from the electrodes will…
Gerald Wilson
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