ABxxx - TL431BSA-7
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Re: Wat is this component?
One of the Bat54 derivative? Possibbly BAT54CLeave a comment:
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Re: Wat is this component?
Post a picture of the board it is from, any model information might be helpful as well as it's board designation, ie: Q?, U? ic?Leave a comment:
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Wat is this component?
Hi Everyone!
The SMD code is AB5IB. It's a SOT-23 component (or similar).
I tried to decode this component on every site I could find (SMD Code Book, etc.) with no success.
Does anybody know what this component is? I have 2 of them on the board, and both give the same readings. I used DMM, as well as PEAK Atlas DCA75 Pro Advanced Semiconductor Component Analyser.
Atlas says that NO COMPONENT IS DETECTED (both of them). Usually, it can detect ALL types of transistors, including Darlingtons, MOSFET, BJT, JFET, etc., Volt Regs, Diodes, etc. If it doesn't recognize an item, it says UNKNOWN OR FAULTY COMPONENT.
DMM in diode mode shows the following readings (the first probe position of each pair is GND):
COMPONENT 1 pins 1-2: 0.64V, pins 1-3: 0.81V, pins 2-1: OPEN, pins 2-3: OPEN, pins 3-1: OPEN, pins 3-2: 0.72V.
COMPONENT 2 pins 1-2: 0.64V, pins 1-3: 0.81V, pins 2-1: OPEN, pins 2-3: OPEN, pins 3-1: OPEN, pins 3-2: 0.72V.
So they are identical.
See attached picture for the pin numbering I used.
Any help would be greatly appreciated!
Regards, Jerry.Attached Files -
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Hello, I search this connector (oxydated).
It's a fpc zif low profile connector. It come from camera sensor, it is very small : 0.3mm between 2 pins.
I ordered 2 from Aliexpress called « 0.3mm pitch » but one was 0.5mm between 2 pins and the other 0.6mm. In fact « 0.3mm pitch » seams to be the pad width and not the distance between 2 pins.
I can't find it. The other websites like mouser dont show the datasheet, and I can't check if it is 0.3mm between 2 pins ?
Do you know how to find this connector please ? What is the exact name for find it ?
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panel: au optronics T650HVN05.4
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link to datasheet: https://datasheetspdf.com/pdf-file/8.../T650HVN05.4/1
Vizio 56.04219.641G (liteon PA-3231-01WN-LF) Power Supply Unit
https://www.shopjimmy.com/vizio-56-0...-power-supply/
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Hello,
I am a new forum member. I found a broken MSI motherboard with lot of problems. The other problems need schematic. Because, the missing parts what were breaking down with screwdriver and pliers at a standoff.
So, its actual problem is a missing Vcore and Gnd pins in the CPU socket. My question is that, can it be used safely without these two pins? Only for testing at first, while the other problems will be solved. I would wish repair them later.
The other spots are thermal phaste, because, the under educated installer of the CPU did wipe the contacts of the... -
Does anyone know what pins i need to short to power on the Dell XPS 13 9315 clamshell? I have just the main board and I would like to get into the BIOS to enable boot on AC. Can anyone help me?07-27-2025, 10:23 PM -
Hi everyone,
Can someone help me with a schematic/boardview of this phone?
I'm looking to identify the rx and tx uart pins on the board.
Because I want to use the usb-port for power and other things, I can not use the uart over usb method.
I took some pictures but without the boardview/schematic it's a bit daunting.
Images:
https://photos.app.goo.gl/vzYVtVcZgz8trCT48
I'm uspecting the masked pads above the ufs chip. (but offcourse I'm not sure).07-21-2025, 08:49 AM
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