Inductor 'polarity' ?

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Agent24
    I see dead caps
    • Oct 2007
    • 4951
    • New Zealand

    #1

    Inductor 'polarity' ?

    Just noticed an inductor I bought has a short lead and a long lead.

    Does this indicate something? All I can think of is winding direction or such, but does that actually matter?
    "Tantalum for the brave, Solid Aluminium for the wise, Wet Electrolytic for the adventurous"
    -David VanHorn
  • momaka
    master hoarder
    • May 2008
    • 12170
    • Bulgaria

    #2
    Re: Inductor 'polarity' ?

    As far as I know - no. That's probably just how it came out of the factory.

    Comment

    Related Topics

    Collapse

    • momaka
      Corsair CX750M [Model 75-002019] - burned output toroid inductor
      by momaka
      Looks like I may need a little help from the PSU experts (or anyone really! ) I have a Corsair CX750M (Model 75-002019) that I picked up for free about 4 years ago. This is the PSU:



      So here’s what’s strange about this one: it appears to work normally (normal output voltages) and any PC is stable with it. However, after a while (typically 10-20 minutes, but time can vary depending on the load), there is a sweetish smell of burned magnet wire insulation emanating from the PSU. Upon opening the PSU after this happened (many times), I was able to confirm...
      09-19-2021, 08:44 PM
    • Bartoloni
      Lenovo S145 -15iwl vcore inductor warm.. looking with oscilloscope there is a spike.
      by Bartoloni
      Hi, i have a Lenovo S145 that after 20 seconds shutdown and restart (it's working correctly on thse 20 seconds)
      everything seems ok, but on Vcore inductor ( this is an i3 with just 1 switching power supply for CPU)

      there is an output to teh CPU with a spike.. seems that inductor can't handle the input...
      replaced the capacitor (330) and the inductor (R15) without any change
      any idea? very thank you!

      input of the inductor seems as usual... only strange thing is that the upper/lower voltages seems to be 21V (main power line is 19.3) ... but not sure this...
      12-09-2024, 12:42 PM
    • badcap111
      How to read inductor specs?
      by badcap111
      I have a broken samsung galaxy s10 with missing inductor. I want to replace the missing inductor and I have found some vendors. But I don't understand how to read the specifications of the inductor. The specs are:

      INDUCTOR-SMD;470NH,20%,2520,T0.8,0.029OH

      I understand that the inductor is 470 nH with 20% margin, and the size is 2520 or 1008 (imperial measure), but what do T0.8,0.0290OH mean? I can't find any explanation on the web.
      09-12-2023, 01:25 PM
    • Dev Goose
      Help Needed: Reverse Polarity Issue on HP EliteBook 840 G4 – Where Do I Begin?
      by Dev Goose
      Hi everyone, I recently acquired an HP EliteBook 840 G4 (6050A2854301-MB-A01) that I'm hoping to bring back to life. I'm fairly new to laptop repairs but eager to learn and willing to put in the effort to understand and fix this. Any advice or guidance would mean a lot!


      What Happened
      The issue started when the laptop was accidentally plugged in with reverse polarity. Before this incident, the laptop would show a power/charging light whenever it was plugged in. However, now it's completely unresponsive—no lights, no power, nothing. I've been doing some research and understand
      ...
      12-13-2024, 03:13 AM
    • repair-it
      Norcold DE-0061 AC/DC power supply inductor?
      by repair-it

      I am trying to determine what this inductor is. It was already removed from the board when it was brought in for repair, my guess to prevent the AC part of the circuit from operating, The main cap is also blown. There is a second identical inductor on the board in mint condition. Not sure why this one failed but would like to replace it but not sure where to find....
      Today, 06:38 PM
    • Loading...
    • No more items.
    Working...