Identify chips, connectors, cables, and other components, usually from photographs

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1answer
49 views

Getting more information about a transformer

I'm trying to figure out more information about a small transformer on a old board that we are reverse engineering, can someone give me some advices about how can we reverse engineer this transformer? ...
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1answer
37 views

Identifying power supplies / DC adapters

I have a box of miscellaneous power supplies / AC adapters / transformers / "bricks" which have no information on them about what they are for. I am trying to match them up to the devices they belong ...
0
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1answer
55 views

Need help to identify potentiometers, please

I have to replace some scratchy potentiometers used as volume potentiometers in a Rocktron Velocity 300 guitar power amp from the early 1990's. These two parts are labelled: 15A100K 9252 TØB10K ...
3
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1answer
79 views

What is this component in series with my water heater's thermocouple?

The other day we had our water heater go out and the issue was diagnosed to a faulty thermocouple. When the repair man removed the faulty thermocouple he noticed the following disk-like component in ...
0
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1answer
56 views

What is this ribbon cable connector / where to buy?

I plan to make a circuit for a system and most of parts in the system use this type of connector. It would be really great if I can buy such a connector. (in the picture it is 10 pins while there ...
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2answers
263 views

What is the name/type of this DC power connector?

I would like to know the name/type of this connector: It provides 12 DC power to a hand drill, its diameter is about 2.5mm. I would like to buy an adapter for it that converts it to a 4mm banana ...
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2answers
66 views

How to identify SMT transitors

im trying to identify the following 4 transistors, but am having trouble tracking them down. The one that I think is the dual transistor is marked .1Ft on top of it, and the other three leg one is ...
0
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1answer
48 views

Identifying a broken Rotary Encoder on guitar foot pedal

I have a guitar foot pedal, "EHX Stereo Memory Man with Hazarai", with a rotary encoder that broke off. Here is a picture of the knob in question: Also, here is a picture of the circuit board, ...
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0answers
44 views

Vintage Motorola Part Identification

I found a box of 1970 vintage Motorola transistors (at least they look like transistors). I can't seem to find any data on these. Any help is much appreciated. On the box it is labeled type SS3071H. ...
16
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3answers
3k views

What are those small metal bars going across a PCB for?

In quite a lot of PCBs that I have seen, they often have these small metal bars going across from one point to another. Here is an image of what I am talking about. In this example it is a charger: ...
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1answer
377 views

Identifying a 3-Terminal Component (probably some sort of magnetic device?)

I am trying to identify this component from a circa 70s AM/FM radio. It was attached to a flip clock, which makes me think that it is a magnetic device responsible for the "flipping" action of the ...
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1answer
142 views

Can someone tell me what this thing is?

More images are here: Numbers are: 500B - On the back 6800 +5% 80 - on the front
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1answer
79 views

Identifying this 6-pin power connector

I'm looking for a manufacture ID for this 6-pin SMD power connector. Anything will help, even a category to dig through on mouser/digikey/fanell. 2 Vcc 2 gnd 2 temp sensor
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1answer
65 views

Help identifying compact, flat connector found on brushless DC motor

Do you know the manufacturer or model number of the connector shown in this picture? It came on an unidentified brushless DC motor. Contacts shown are receptacles, not pins. The contact pitch is ...
0
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1answer
138 views

What is this inductor-like part?

In a laser printer's power supply board I have desoldered some of these passives. I think it is a inductor, because it's legs aren't exactly aligned and the round body could be the coil. Does ...
4
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4answers
212 views

What are the square holes for in most electronic project boxes?

I'm new to the electronic scene and lately I been purchasing a lot of project boxes for the stuff I make, I've noticed in about 75% of the boxes I purchase they come with small square shaped holes on ...
4
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2answers
114 views

What's this 't' unit on a PCB?

I recently came across a symbol like this on a PCB: (forgive the use of Paint) The component was marked as being 0.1 (symbol). You can just make it out in the centre of this photo: It's a ...
0
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1answer
40 views

Touch screen type [closed]

I know there are many different types of touch screen out there. In the attached picture, could someone tell me what type of touch screen that is? I am looking to buy some screens like this one for ...
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0answers
20 views

Socket for Thinkpad R50p keyboard connector

I want to use my old Thinkpads' keyboard but cant find a fitting socket for the connector. Is there a way to identify the socket type or manufacturer so I can find it on the (German) market? ...
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2answers
66 views

What is the package name of this Through Hole LED?

Does anyone know the name of this package type for an LED? Does anyone know where I can get one like this in red?
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3answers
136 views

Identifying this resistor/capacitor

I'm having trouble to identify this (presumably broken) part for replacement: It was used in a broken LED power supply, with 220-240 V AC on the input and 120-200V DC on the output. I suspect this ...
2
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1answer
203 views

Please help me identify two pin locking connector

This is a two pin, locking style connector with "AMP" molded into the front edge; there is also a "P". Material is nylon or similar and the pins are pushed in from the rear like Molex connectors. What ...
0
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1answer
104 views

Electrical part question

Does anyone knows the name of the part that connects with this power adapters cable?
0
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1answer
53 views

SMD diodes identification

I'm trying to identify the SMD components on a contactor control circuit. They are from General Semiconductors and have the labels: YR103, WX104, and RZ102. I think they are diodes, but I'm not sure ...
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2answers
211 views

What type of oscillator is this? (Theremin Project. Variable Pitch / LC Oscillator)

I found this oscillator at a Theremin project pdf. I simulated the circuit, and found that the output (left wire) oscillates at 236.5 kHz. This circuit is referred to as "Variable Pitch ...
0
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2answers
93 views

How to connect IR sensor ( Infrared detector/receiver )?

Would you give me a hand ? I have an IR sensor with 3 pins. It looks like the one in the picture, and I did not find any datasheet for it on the internet. actually, I have 3 questions : 1- I want ...
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5answers
618 views

What are these metal plates covering parts of PCBs called?

I am trying to mod my wireless router, but one of the parts is under a metal plate. What are these metal plates called? This is what it looks like when it is removed: (The gold coloured ...
6
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2answers
291 views

Transistor pinout - how to read the datasheet

Is the capsule's straight face visible? Or the round one? Is that top view or bottom view? Do all datasheets use the same orientation? This is the datasheet. I'm not looking for an answer ...
5
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1answer
108 views

Name this short-range optical component

It's time for another rousing round of "Name That Component"! Today's participant hails from a Bluetooth combo keyboard/mouse, where it detects finger motion across it which the Bluetooth chip ...
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0answers
64 views

Identify RF amplifier IC

I am trying to repair a broken RF amplifier by replacing an IC. From reverse engineering, I know that this is a ~2 GHz, ~25 dB gain amplifier and that it is internally 50 ohm terminated. Some of the ...
3
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1answer
210 views

What kind of PC board coating is this?

I recently came into possession of two large (approx. 3x4 ft) copper-clad fiberglass boards from a junk sale. These boards are consistent with typical printed circuit board material (thickness, ...
0
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3answers
48 views

Identification of switch type casing type or housing type

I don't know what or how to identify this switch. Its dimensions are: 29.5mm by 25 by 21.5 tall. It has a lug for a screw on the side you can't see it is actuated by a pin on a separate housing ...
0
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1answer
109 views

Where can I find a transistor similar to a 2n 3904?

I have what I believe is a 2N 3904 638 transistor. It measures 50MΩ at around 70°F. How can I find a data sheet on this? How would I go about finding a similar / replacement thermistor? PS: ...
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1answer
119 views

What kind of device is this? [closed]

Hi, I found this device lying around somewhere and I have no idea what it is. Can someone help me figure out what it is?
1
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2answers
88 views

Identify high current LED Package name

Based on another question recently asked, this package is very common, used in high current LED applications (0.5W ~ 3W). The package includes the led chip, lens, heatsinking, but can vary in light ...
5
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1answer
228 views

What is this component with metal tabs?

I am working with a Firgelli Linear Actuator Control board and came across an unusual component. At first I thought it was a heatsink, but there does not appear to be any component under the metal. ...
0
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1answer
162 views

Identify surface mount transistor

I could use some help on finding a replacement Transistor. One of the depth finders on our boat has failed and shows a dead short on the power input lines. The problem may be a shorted Transistor in ...
0
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1answer
66 views

PCB Identification - Many relays, 2 LM2596s, and other power-related components

I'm looking at a board lying around in my home and have no idea what it is, expect for the fact that it appears to be power-related. There's a transformer in the corner, many relays, 2 LM2596s, and a ...
0
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3answers
82 views

Need assistance in identifying wire

I'm working on a LED project similar to the one in the picture, and I need to identify the black wire that the arrows are pointing to. What are those called? Here is a picture:
13
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1answer
1k views

What's the usage of these holes?

I'm really curious to know what are these holes on this mobile PCB: Are these vias? I doubt they are vias. If these are not vias then what are they? What's the usage of these holes?
0
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1answer
85 views

What are these components in these circuits?

I have seen a documentary about making BGM-71 TOW (an anti-tank missile - the Iranians make it). You can see it in this link (part 1). I have seen two odd components. In your opinion, what are these ...
0
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1answer
121 views

Replay Philips Livingcolors remote signal

I have a Phillips Living Colors Lamp, which comes with a remote control. I'd like to be able to capture/replay the signal of the remote control so I can control the lamp with a microcontroller ...
0
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1answer
118 views

What are these parts? (better photos)

I have salvaged some parts that I can't identify myself. I would appreciate it if someone could tell me what they are called so I can look them up. I took some better photos of the first 3 parts, and ...
4
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1answer
828 views

Could I connect USB wires to this mysterious device?

In a treasure box, as I call the boxes full of old computer electrical parts, I have found a device marked HannStar MV-4 94v-0 0611 E89382. I'm intentionally linking you to google search so that you ...
3
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1answer
131 views

Identify failed component [closed]

Since this is my first question here, I hope this is on topic. The power supply of one of our old CISCO Aironet 1231G wifi access point failed recently, after a power outage. I think that the power ...
1
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2answers
56 views

K2554 transistor - is it equivalent to 2SK2554?

I have K2554 transistor. There is a symbol similar to Hitachi logo. I can't find datasheet for it. Is it equivalent to 2SK2554? Can I rely on 2SK2554 datasheet?
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2answers
73 views

Diode identification

I'm trying to develop a replacement for a BLDC motor driver board and since my first attempt resulted in a few burned components now I'm trying to use the same components they used on the original ...
1
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3answers
136 views

What is this socket name and where can I buy the female counterpart?

I have this socket on a PCB which is half inch wide (1.27 centimeters) with pins being close together (I think 0.05") and not uniformly spaced like in a normal IDC connector. I need to create a ribbon ...
1
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1answer
137 views

Identifying a blue LED

Is there a way to identify a blue LED? I only know it's bright (like a high intensity white LED), needs a higher voltage than the equivalent red bright LED, and has T1 (3mm) form factor. Note By ...
1
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2answers
98 views

Cable connector type identification

I would like to know what is the name of these type of Cable Connector's please, and where do I get them? and do they come in various sizes for the same Pin Count? also, I have another one with 4 Pins ...