1. M

    About LTC2668 component signal glitch, sudden short voltage drop before the main pulse

    I have the LTC2668 on my board, I am doing signal verification on it. https://www.analog.com/en/products/ltc2668.html#product-overview I found that all SEL1~8 outputs have weird drop of voltage before the main pulse as shown in the waveform below (this sudden voltage drops always happens at a...
  2. Khisraw

    UCC28910DR Alternative

    Hello, We have used a flyback switcher UCC28910DR from TI in our board but unfortunately, the lead time for his part is now 63 weeks. Anyone can suggest an alternative? I really want to avoid board redesign. Cheers
  3. N

    Common SMD inductor values to try out in repairing

    Hello, I have the broken bluetooth module that you can see in the picture below. Noted in RED 1 and 2, are the two places where an SMD inductor should be. I salvaged one SMD inductor going there, which you can see in the picture below: However, I destroyed it while trying to connect leads...
  4. N

    Name of this component?

    my indoor Air conditioning unit short-circuited after cleaning and this is the component that gets damaged. currently i replaced the entire board from a similar air conditioner and it works, but I'm wondering if I could fix this board. I'm new here so not sure if this is the right place to ask...
  5. shinai7047

    I am looking for a similar part to a ATSAMD21E18A-AU (Link to Digikey part in thread)

    Part: https://www.digikey.com/en/products/detail/atmel/ATSAMD21E18A-AU/13480283 Mainly trying to find a replacement for this particular I2C however I am hitting a huge roadblock that I suspect has a lot to do with the current "Chip shortage" that is often discussed. Unfortunately at the heart...
  6. Lambo Av

    Doubts on How Connector Works

    Hi all, I am currently reviewing this Degson DG2002-4.0 connector. https://www.degson.com/content/details_123_10715.html May I know what does the arrow above the connector mean? And what do the holes beside the arrow does? Based on the photo below, there is this operating tool which can be...
  7. Geofakhry

    Please I want to know the types and specifications of diodes and igbt of this recrifier bridge

    Please I want to know the types and specifications of diodes and igbt of this recrifier bridge
  8. Y

    What is this component?

    Hi everyone! I'm wondering what component is this? It is crunchy when you turn it like a sand inside and i think it needs a replacement. It doesn't control the power output properly. It is the two large object near the red led (one of it is crunchy)
  9. Errorbot1122

    How do you identify ICs and other components on a circuits board

    So i'm currently trying to take parts out of a Bluetooth speaker's circuit-board and find the Bluetooth module for a DIY project. I looked at the board and some ICs and tried looking them up to no avail. So How Do you read an IC or any other components on the board Or even find a schismatic...
  10. D

    How do I detect if a component is working if it's circuit is open?

    Hi guys, This is my first post here, so sorry if this is in the wrong category. I am currently designing for an electric vehicle and I want to integrate a discharge resistor and relay in parallel to working components (so that the working components are operating normally, but when the relay...
  11. B

    How to select appropriate components?

    I've just started tinkering and I'm having trouble with a pretty basic concept: reading and selecting components. I have some push buttons that say ACDC 24V — does this mean in need 24V of AC -> DC power for the component? I have another push button that says: UI: 440V AC15 Ith: 10A DC13 —...
  12. P

    Someone know the name of this component?

    Howdy I'm sorry if this is too basic or obvious for some of you but I'm a begginer and I need to replace this component but I don't know what it is, I been looking to see on net where I can find something similar to it but had not luck. I think is bad because all of the terminals have continuity...