Questions tagged [diodes]
Diodes are semiconductor components made from a P-type (or metal in Schottky diodes) and N-type material (usually silicon, but germanium, selenium, and gallium arsenide can also be used), that allow current to flow in one direction only.
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Diagnosis and Replacement of 2N1101 transistor
I have a circuit board with 3 transistors on it, all of them are 2N1101. I'm trying to diagnose the problem with the board with the diode tester on my multimeter. I found 2 of the transistors have a ...
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Part number of this IC marking "R2. 8"
Can anyone please help me define the part number of this part marking "R2. 8" in the picture below?
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Trying to identify a vintage (1992) diode
I'd like to identify the vintage diode at position D15:
This diode is found on a PCB from a 1992 Mercedes 300D (W124) Convenience Control Unit (it controls the windows, sunroof, etc.). I don't think ...
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How to know what size diode to use for inductive spiking?
I am making a simple Zener flyback circuit for an inductor.
What current rating should the diodes be sized for? Could I use a 1 watt Zener diode because the voltage spike only lasts a few microseconds,...
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The role of Q33 and the connection of pre-discharge circuit in the BMS circuit
I'm trying to understand the following circuit which is taken from the TI's TIDA-010216:
I don't understand the role of Q19, D29, D30 and Q33 in the circuit. According to this post, it seems that Q19,...
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Usage of two PSU in parallel for WiFi router using Schottky diodes
I have Wi-Fi router which is powered by AC adapter with nominal output 9 V, 0.6 A. Due to power outages I have bought USB DC-DC adapter 5 V ⇾ 9 V and power it from power bank/power station. Router ...
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Part Identification and Circuit clarification
i am trying to repair a laser driver circuit.
Apparently, it was connected to a lab power supply (the driver is rated 4-5,5V, 8A) and someone turned the knob, so it got way higher voltage.
I ...
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Discrepancy in Diode Simulation Results between LTspice and Standard Test Conditions [closed]
I'm currently working on simulating diodes in LTspice and have noticed a discrepancy between the simulation results and standard test conditions (1000 W/m2, 25 degrees Celsius. The results have been ...
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Flyback Diode Forward Voltage
Using this link as reference.
Question 1:
From my understanding, if the applied forward voltage across a diode is much greater than its rated forward voltage the diode will potentially fail.
Based on ...
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What is this symbol on the manual for a Yaskawa servo drive?
I'm attempting to wire a Yaskawa Sigma-V Series AC servo drive to a Rosetta CNC, and I came across this symbol, a triangle that has one line in, one line out, and what seems to be a return line ...
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Chip Identification - TVS diodes
Can someone please confirm that these are bidirectional TVS diodes, I cannot find the datasheets for these anywhere, but they look to be them.
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Please help me identify this IC - top marking "CEK"?
Please help me identify this IC - top marking "CEK" such as picture below:
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About diode question solution
While solving the diode question, a point like this stuck in my head, I did the solution in this way, but I ask you to help the community
For X value; (I thought it should be found with a voltage ...
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