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Questions tagged [socket]

For questions about electrical sockets such as wall sockets or sockets for mounting electrical components (such as ICs).

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23 votes
10 answers
6k views

Are DIP sockets against overheating worth the cost?

Sockets allow easy replacement of a device and eliminates the risk of damage from overheating during soldering. [Wikipedia] I personally never (ever) replace these ICs. For programming ...
dusk's user avatar
  • 333
17 votes
6 answers
15k views

Unplugging a router from the wall socket

When the internet appears to have crashed, the service provider invariably gives this advice as a first line remedy: unplug the router from the wall socket, then wait 5 minutes, then plug it back in. ...
Gayot Fow's user avatar
  • 273
16 votes
1 answer
3k views

What kind of socket is that?

I found that socket on a music device produced around mid 1970s in GDR and I was wondering what kind of socket it is. Unfortunately, someone painted the whole device, including the contacts. Therefore,...
Stanley F.'s user avatar
8 votes
5 answers
25k views

Why do EU electrical sockets/plugs have two pins for grounding?

Inside a plug there is one grounding wire, while the socket has two grounding pins. I know that the wire splits into two, but why? As the wiring inside the wall is supposed to be the same between ...
appwizcpl's user avatar
  • 911
8 votes
1 answer
682 views

Name for this type of connector?

Can Anyone help me to identify this board to board connector? 7 springs connector on top and 8 on the bottom. answer Found a Korean company producing it. Thanks. This is the plug on the other end.....
Percy's user avatar
  • 81
7 votes
3 answers
38k views

Does it matter which way you plug stuff into the wall socket [closed]

I have a european socket and if you saw one you will know that you can plug stuff either way. But american sockets can only be plugged in only one way. So does it matter which way its plugged it ...
theraginggamer's user avatar
6 votes
2 answers
710 views

What is the name of this green 2-pole DC power connector?

I've seen this connector crop up on several devices: (The above image is from a StarTech USB HUB.) If I want to buy the matching plug for this socket, what should I be searching for? I've tried ...
larsks's user avatar
  • 354
5 votes
2 answers
4k views

Why is the upper hole in a plug point bigger than the rest?

In a plug point you can see that the upper hole is bigger than the other holes in it. Why is this hole bigger than the other two?
Brd's user avatar
  • 111
5 votes
2 answers
507 views

What is the name for this connector socket pin configuration?

Does anyone recognize this female socket pin layout as a standard design of any kind? I was looking at 5-pin CB Radio Microphone sockets, and they are similar, but not the same layout. Also, the ones ...
pyridoxal_trigeminus's user avatar
4 votes
1 answer
707 views

Do dead CFL or LED light bulbs consume power and is it safe to leave them mounted?

Do burned-out CFL or LED light bulbs consume power when the switch is on? Is it safer to keep them in their sockets, removed or slightly unscrewed so the bottom center contact isn't touching? I ...
USER249's user avatar
  • 661
4 votes
3 answers
11k views

Why AC socket polarity is important?

In North America sockets and plugs design makes sure you'll be able to plug only in a certain way: (source) Why is this important for AC? Moreover, many plugs, such as cellphone chargers, are in fact ...
Sparkler's user avatar
  • 823
4 votes
1 answer
130 views

What are the uses for a water soluble IC socket?

I recently stumbled across water soluble IC sockets after being given a bag of them. While they do dissolve successfully from the board, I can't seem to come up for a valid explanation for why anyone ...
Broderick's user avatar
4 votes
1 answer
89 views

Help Identifying a Molex/MATE-N-LOCK style connector

Hoping someone can help as I've spent the last few hours trying to find this specific connector on a number of distribution and manufacturer sites. The pitch looks like it is around 6.3mm. It's a 2x2 ...
C-BoT-AU's user avatar
3 votes
4 answers
1k views

Always-on socket in-between a 2-way switch?

I have access to a power cable that powers devices through a 2-way switch, basically: Is it possible to add an always-on socket in between using L1, ...
Pranasas's user avatar
  • 132
3 votes
3 answers
660 views

Same type of jack - different current ratings [closed]

I'm looking for not expensive DC barrel female connector that can handle 8A of current. I found only barrel jack 5.5x2.1mm which can handle 3A, I couldn't find anything similar. But same type of ...
Pararera's user avatar
  • 441
3 votes
1 answer
326 views

If a light socket only has 2 connections, how can they sell 3 prong light socket adapters?

If a light socket only has 2 connections (thus not grounded) then how can they sell 3 prong (grounded) light socket adapters? How is this legal and safe? If it's grounded, then how does that work? e.g....
that-ben's user avatar
  • 363
3 votes
2 answers
2k views

Why were hobbyists advised to socket ICs before, but not now? [closed]

When I was little, the general advice for electronics hobbyists was to socket all their ICs. Indeed you would find the word must referring to the need for sockets. This was to prevent thermal damage ...
Paul Uszak's user avatar
  • 7,557
3 votes
6 answers
2k views

Why do French power sockets have a protruding ground?

French power sockets have a protruding ground. Why did they make this decision? I can't see any major benefits from it, it saves some pennies on each power cord, but it exposes the ground connection ...
mFeinstein's user avatar
  • 4,333
3 votes
1 answer
667 views

Help with identifying a PCB header connector

I have scoured the Internet trying to locate what this is - I'd appreciate any information if someone recognizes this plug/socket combination. It is currently used to carry 5V DC power of about 1A. ...
Crom's user avatar
  • 33
3 votes
4 answers
2k views

Hot and neutral have similar voltage to ground - finding the problem

I have an APC battery backup and surge protector for my computer. It has a light, labeled "Building wiring fault." This light is on, and my computer will not start. I am unemployed and my landlord is ...
andrewH's user avatar
  • 161
3 votes
2 answers
8k views

IEC vs. UL current rating

I was doing a search on Digikey for some power entry connectors and noticed that many of the connectors are rated 10A by IEC standards and 15A by UL standards. Why is there such a large difference ...
pr871's user avatar
  • 1,167
3 votes
2 answers
496 views

Removing 3.5 mm jack socket from a PCB: patching the socket's switches

I sheared off a plug from a 3.5 mm headphone jack inside my Roland HP603 piano. After failing to remove the plug, I tried removing the 3.5 mm jack socket from the PCB. However, the piano still thinks ...
pyrex's user avatar
  • 133
3 votes
5 answers
2k views

Is it okay to short earth and neutral pins in 3 pin sockets?

One of the plugs in my room did not have any wires attached to the earth pin. Whenever I connect any device that has a metal casing, I get a tingling feeling if I brush my hand against the casing. I ...
Terrarium's user avatar
  • 131
3 votes
2 answers
4k views

How to connect a relay to 220 Volts outlet?

I used relays before but just for simple 5V DC signals control using a Raspberry Pi. Now I'm quite cautious and would like to ask for some help from professionals because I'm not planning to set my ...
The Quantum Physicist's user avatar
3 votes
1 answer
116 views

Are PLCC Chips/Sockets always the same pitch?

I'm hunting down a socket for a PLCC-84 chip and none of them mention pitch spacing. Is that because PLCC is always the same spacing between pins?
Sam Washburn's user avatar
3 votes
1 answer
947 views

What is the purpose of these plastic "wings" on this power plug

The plug in the picture has plastic "wings", which seem to have no other purpose than to irritate when trying to insert multiple devices into a power board. The wings do not allow cords to be plugged ...
Bob23's user avatar
  • 31
3 votes
0 answers
103 views

12 V, 2-pin power socket identification

I’m trying to find a replacement 12 V, 2-pin plug socket for my Campingaz TE 28 LC Cooler. The socket is 22 mm wide x 15 mm deep x 13 mm high. I can find plenty of power cords but no sockets to plug ...
Rob Hughes's user avatar
3 votes
0 answers
943 views

A curious 433 MHz signal to decode

I bought a cheap set of remote controlled power sockets and I want to integrate them into my home automation system. So I got a 433 MHz receiver for 1€, connected it to my Arduino and tried to decode ...
henk's user avatar
  • 141
2 votes
4 answers
2k views

For electrical outlets that have on/off switches, is energy sent to the socket when nothing is connected to it but the switch is on?

In several countries, electrical outlets have physical on/off switches used to control the energy flow sent to the connected appliance. If the switch is set to the on position but nothing is connected ...
elliott94's user avatar
  • 131
2 votes
4 answers
293 views

Multimeter blown trying to measure 125 V in the 600 V AC range

I used a multimeter in its 600 V AC range to measure the voltage across a socket of a surge protector that is rated 125 V - 5A. As soon as I inserted the test leads, there was a pop and a bright flash....
Dat_Derpy_Dude81's user avatar
2 votes
3 answers
2k views

Earth pin in a 3-pin mains plug [closed]

I bought a new pressure washer online and it has a 3-pin plug as shown in the picture, but there are only two pins protruding out from it. The two pins fit into my standard 3-pin socket and it works ...
androidguy's user avatar
2 votes
2 answers
420 views

Strange new power supply socket effect [closed]

I bought a new power supply. I have a power strip with 5 sockets, having protection (I guess), and an on/off button. When the button is "on" the button glows red, when its "off" it ...
verbessern's user avatar
2 votes
3 answers
2k views

How much 12V DC current can I safely draw from an AC 230V 13A socket and why?

In my cabin I have a sollar cell and a 12V battery that I use to power my electronics. However I'm dissatisfied with the standard CL sockets used in cars (apparently I'm not the only one) and I ...
csha's user avatar
  • 127
2 votes
1 answer
329 views

Identifying a wall socket with 8 small, 2 larger holes in trapezoid/star configuration

What kind of connector is this? Country: Germany Location: University Building (Department of Computer Science) The logo in the middle rather looks like an "h" 6 smaller holes form a trapezoid 2 of ...
moi's user avatar
  • 123
2 votes
1 answer
704 views

How to socket 28-pin DIPs?

Recently I switched from the leaf-spring type of DIP sockets to the more expensive machined MIL sockets. The leaf-spring type were failing (by the spring parts pulling out of the socket) after a few ...
JRobert's user avatar
  • 3,192
2 votes
1 answer
54 views

Naming PCB connector metal socket in plastic housing

What is this PCB connector type? From the array of unsoldered connectors in plastic housing the metal socket is supposed to be replaced. Pictures present missing metal socket yet its type/name is ...
gzifl-67's user avatar
2 votes
2 answers
75 views

need help identifing parts

The first Green bit is a thermistor out of a fluke 374 clamp meter, but cant find the manufacture from the logo or what the number means. The other is a socket pin from a single wire connector, its ...
JHelimech's user avatar
2 votes
7 answers
5k views

Neutral and live holes/wires

Is the neutral hole socket on the left or the right side? Is this universal to all countries and most houses? The neutral wire is usually at 0V relative to earth right? Or 0V RMS? HYPOTHETICALLY, if ...
user40300's user avatar
2 votes
3 answers
1k views

Are RJ45 jack sockets universal regarding CAT-X cables

I've noticed some trade/wholesale websites list CAT-X jack sockets separately as the individual numerical version, i.e., (CAT-3 jack socket). I'm aware CAT is a standard, and RJ45 is the socket ...
Allari's user avatar
  • 23
2 votes
2 answers
2k views

How to repeatedly read and write a SMD EEPROM without unsoldering it each time?

I am doing a lot of reverse engineering on SOIC-8 Eeproms in automotive ecus. At the moment it requires unsoldering the chip, read/write, solder the chip back in, test, repeat. Most Eeproms have to ...
Newbie Noob's user avatar
2 votes
1 answer
276 views

Name of socketed PCB jumpers

What is the correct name for those little jumper cables, with a small socket each end, designed to go between header pins on PCBs. A bit like these, but singles http://www.ebay.co.uk/itm/5-Pcs-30cm-...
user avatar
2 votes
1 answer
1k views

General dimensions and recommendations for a USB dongle

I'm trying to create a device that connects via USB and sits in a users computers USB socket at all times, and I'm unsure of what the general dimension requirements will be. Ideally, this device ...
mkroman's user avatar
  • 121
2 votes
2 answers
1k views

Smallest 2 Pin AC outlet socket [closed]

For a home automation project I need to source panel mounting electrical outlet sockets which are as low profile as possible and are rated at least 200 watts. Something like a female version of these ...
AlasdairC's user avatar
  • 131
2 votes
0 answers
63 views

Bipolar switch on UK standard wall sockets

the company where I work would like to produce and market a type of wall socket with UK standard. I have seen that some models produce by our competitors are equipped with a bipolar switch, others are ...
gischio's user avatar
  • 31
1 vote
2 answers
1k views

What is the difference between a 2 and a 3 solder terminals socket (coaxial jack dc)

I'm not pro with electronics and electricity and I want to replace my notebook socket so I'm looking for a coaxial jack dc socket but, as I only have two cables (a positive and a negative one) to ...
Desura's user avatar
  • 143
1 vote
2 answers
542 views

When selecting an IC DIP socket for a DIP 20-pin microcontroller, should the DIP socket have the same number of positions and row distance as the IC?

Consider a 20-pin DIP IC with 2 rows, 10 pins in each row. For example, the Texas Instrument MSP430G2452 microcontroller. The measured distance between these two rows is just over 9 mm. On page ...
keikaku's user avatar
  • 79
1 vote
3 answers
1k views

How Does an Unearthed Socket Close its Circuit?

From what I'm to understand, earthed sockets send their electrons (through the neutral wire (assuming no fault)) to the circuit breaker which is then wired to earth ground. How does this work in ...
Sarah Szabo's user avatar
1 vote
3 answers
3k views

Is it safe to slightly unscrew a light bulb so it doesn't complete the circuit? [closed]

It's dangerous to leave an open socket, but I have a light fixture that's too bright and I don't have a dead bulb to put in one of the sockets. Is it safe to put a bulb in but unscrewed enough that it ...
bdavidson's user avatar
1 vote
1 answer
96 views

Can anyone identify this 40-pin SMT socket on the Silicon Labs BRD4180A board?

This socket appears on the Silicon Labs BRD4180A board and it might be nice to reuse the module on our projects after programming it. The socket appears to have 50-mil spacing between pins. What is ...
KJ7LNW's user avatar
  • 2,012
1 vote
1 answer
93 views

What type of connector is this 3-pin socket marked "DC24V" on a printer?

The device in question is a printer, I've never seen such a connector before...
Andrej Dedik's user avatar