Resistor value - Page 1
Forum section: electronics / repair

author: jheatac
author_rank: Regular Contributor
timestamp: December 17, 2018, 03:18:00 pm
content: Can someone please check me? This is a 57k 1% resistor, isn't it?I'm a newbie working on an inverter and it seems to have some odd values...Sent from my SM-N950U using Tapatalk

author: JFJ
author_rank: Regular Contributor
timestamp: December 17, 2018, 04:09:40 pm
content: It looks like a 47k 1% (if the last band is brown) or 2% (if the last band is red) resistor:

author: ElecSeb
author_rank: Regular Contributor
timestamp: December 17, 2018, 06:06:14 pm
content: What more can I say:https://www.hobby-hour.com/electronics/resistorcalculator.php

author: jheatac
author_rank: Regular Contributor
timestamp: December 17, 2018, 08:30:00 pm
content: Maybe my eyes are off....I seeGreenPurpleBlackRedBrownSent from my SM-N950U using Tapatalk

author: coromonadalix
author_rank: Super Contributor
timestamp: December 17, 2018, 09:41:14 pm
content: seems rightGreenPurpleBlackRedBrown

author: jheatac
author_rank: Regular Contributor
timestamp: December 17, 2018, 11:05:59 pm
content: Wouldn't that be a 57k? Which isn't a common value in 1%?Is this 11k or 1.2k?Sent from my SM-N950U using Tapatalk

author: coromonadalix
author_rank: Super Contributor
timestamp: December 17, 2018, 11:21:36 pm
content: Well you can take an meter to check and validate the colorsIn 1% resistors you can have many stranges values, even in circuits you can have a rough idea ?

author: ArthurDent
author_rank: Super Contributor
timestamp: December 18, 2018, 01:17:35 am
content: I bought an inexpensive resistor kit on eBay from a good Chinese supplier and all the resistors I've checked, and I've used many, check out within the stated tolerance. One problem I have with all of them is the painted bands aren't strong primary colors so it is easy to run into the same problem you are having, guessing what the color is actually meant to be.

author: Nerull
author_rank: Frequent Contributor
timestamp: December 18, 2018, 09:11:49 am
content: Quote from: jheatac on December 17, 2018, 11:05:59 pmBrown Brown Black Red1 1 0 2= 110 * 10^2 = 11kDigikey doesn't stock a single 57k resistor, I would tend to suspect dodgy colors. Have you measured it?

author: David Hess
author_rank: Super Contributor
timestamp: December 18, 2018, 08:08:38 pm
content: I looks like 47.0k 1% but that is not a standard 1% value.

author: perieanuo
author_rank: Frequent Contributor
timestamp: December 18, 2018, 08:13:03 pm
content: 47k of course.just some paint nuance problemEnvoyé de mon iPad en utilisant Tapatalk

author: royarms
author_rank: Newbie
timestamp: December 26, 2018, 09:52:07 pm
content: Quote from: perieanuo on December 18, 2018, 08:13:03 pmI agree, first band is yellow. The blue colored resistor makes it look close to green, but that looks yellow with a blue tint. Green band would be more green.Sent from my SM-G900V using Tapatalk

author: Chris56000
author_rank: Frequent Contributor
timestamp: December 28, 2018, 07:46:18 pm
content: Hi!The colour vision of my eyes is clear and accurate and I'm in no doubt about the resistor the OP posted–it's yellow – violet – black – red – brown – red, which is 47k0 ±1% – there's no temp. co. band!Chris Williams

author: jheatac
author_rank: Regular Contributor
timestamp: December 28, 2018, 09:34:10 pm
content: It is apparently a yellow... cheap yellow with blue behind it makes it look green.