Resistor, first color band balck!!.

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • tibd
    Senior Member
    • Oct 2014
    • 189
    • Sweden
    #1

    Resistor, first color band balck!!.

    Hello.
    two blown resistor (in parallel) connecting source of mosfet to transformer in SMPS with 5 band colors
    the problem is that they start with black color band in first Place as below

    Black-Brown-grey-silver-Brown
    black-red-violet-silver-Brown

    As of the size it seems 2-3 w resistors at least.

    Any help with values

    BR

    i think one is 0.18 ohms and the other is 0.27 if i got it right, comfirmation?
    Last edited by tibd; 01-16-2018, 10:27 AM.
    Tags: None
    • ktmmotocross
      Boardkiller
      • Feb 2014
      • 3576
      • slovakia
      #2
      Re: Resistor, first color band balck!!.

      chceck online resistor calculator

        Comment

        • tibd
          Senior Member
          • Oct 2014
          • 189
          • Sweden
          #3
          Re: Resistor, first color band balck!!.

          Originally posted by ktmmotocross
          chceck online resistor calculator
          WOW what a smart answer!!!

            Comment

            • diif
              Badcaps Legend
              • Feb 2014
              • 6978
              • England
              #4
              Re: Resistor, first color band balck!!.

              Yes, 1% tolerance resistors.

                Comment

                • ktmmotocross
                  Boardkiller
                  • Feb 2014
                  • 3576
                  • slovakia
                  #5
                  Re: Resistor, first color band balck!!.

                  Originally posted by tibd
                  WOW what a smart answer!!!

                  what else u need?

                    Comment

                    • tibd
                      Senior Member
                      • Oct 2014
                      • 189
                      • Sweden
                      #6
                      Re: Resistor, first color band balck!!.

                      Originally posted by diif
                      Yes, 1% tolerance resistors.
                      thanks,

                        Comment

                        • JaroTech
                          Badcaps Veteran
                          • Mar 2015
                          • 351
                          • Canada
                          #7
                          Re: Resistor, first color band balck!!.

                          Originally posted by ktmmotocross
                          what else u need?
                          If you don't have the specific answer to the question, you don't need to waste your time to answer.

                            Comment

                            Previous template Next

                            Related Topics

                            Collapse
                            • Askic
                              Reading resistor value by color band
                              by Askic
                              Hello,

                              attached is a picture with two resistors. I wonder what values are based on color of the band.
                              I have used this as a reference:
                              https://www.electronics-tutorials.ws...tor/res_2.html

                              Since there are 5 bands, the question is from where to start counting (what is the first band).
                              Based on this info, I can conclude that thick band is the last one.
                              Therefore the values are:
                              Left resistor - red(2) yellow(4) black(0) black (x1) brown (1% tol) = 240 ohm, 1% tolerance
                              Right resistor - brown(1) black(0) black(0) gold(x0.1)...
                              02-10-2022, 12:26 AM
                            • JenneDezaeger
                              5-band resistor starting with black?
                              by JenneDezaeger
                              Can anyone tell me how it's possible for a 5-band resistor to start with black?
                              If it really was a zero-ohm resistor it probably wouldn't have burned.
                              So if there are any ideas on the value of this resistor and how to read it, please let me know.

                              Greetings,

                              Jenne...
                              12-06-2022, 06:16 AM
                            • jinu_j
                              Dell 2209WA - power supply - Fusible Resistor replacement
                              by jinu_j
                              Hi

                              I am trying to repair an ancient Dell 2209WA Monitor which suddenly shut off with a pop sound. On investigation found that one of the fusible resistors had blown. Further investigation identified multiple components as faulty because of which the fusible resistor blew. Please refer the attached circuit diagram showing the components that were found to be damaged.

                              1. FR950 - blown fusible resistor - 0.2 Ohm 1W
                              2. Q950 - shorted Q950 MOSFET - 650V 10A N Channel Mosfet
                              3. R835 - Blown Resistor - 20KOhm SMD resistor
                              4. D930 - Shorted Schottkey Diode...
                              05-03-2025, 10:51 PM
                            • MidnightRoller
                              Can a resistor lose resistance after hot air?
                              by MidnightRoller
                              I am curious if a 0402 resistor could go from 43 ohm to 0. In electronics class and my experience a resistor can degrade and gain resistance all the way up to not being able to conduct at all. I have never heard of a resistor decreasing in resistance and becoming 0 ohm or a dead short… that's not the direction they fail… or so I thought.

                              I was attempting to remove a wson8 chip on an iMac motherboard and it required a lot of heat, on one side of the chip were 3 0402 resistors that were very close. I popped the chip out unintentionally out of the tweezers and sent those resistors...
                              02-02-2022, 11:46 PM
                            • magneh
                              Is this some kind of fuse resistor ?
                              by magneh
                              Hello guys

                              Taking a look at some KNX domotic modules that were toasted due to some kind of electrical failure, I found out 2 weird looking resistors.

                              Seem to me like some kind of fuse resistor?
                              After diggin a bit seems like a fuse wirewound resistor wafer or whatever that is

                              They are very toasted but I think the 5 band colours are RED GOLD BLACK ORANGE ORANGE or the opposite, not sure which is the first band.
                              The red band is larger than the 4 others, but I dont have much experience with these components.

                              Also one of the orange...
                              02-10-2025, 07:54 AM
                            • Loading...
                            • No more items.
                            Working...