I’m a machine repairman by trade and not an electrician. I do repair electrical/electronic components but am not good at choosing through hole resistors.
I tried to search for a 4 band resistor, yellow - blue - yellow - gold that is a 460k ohm 5%, I believe. Can you let me know what DigiKey part number is please.
Thank you, Ken
Hi kenshort66,
Welcome to the DigiKey TechForum.
Unfortunately, looks like we don’t have any good options at 460K ohm resistors that are 5% or lower tolerance. 460 kOhms Through Hole Resistors | Resistors | DigiKey
Sorry for the inconvenience.
Welcome to the forum.
460k is only a standard value in very high precision (and price) resistors.
460k +/-5% = 437k to 483k so you can substitute a different nominal value, tighter tolerance resistor.
The closest standard value is 464k 1% = 459.36k to 468.64k.
DigiKey has 0.125W to 0.6W choices in stock at reasonable prices.
Thank you Paul,
I take it a 5 band resistor vs. a 4 band is okay to use? Thank you very much for your reply helping me out with this.
I’m repairing a wall mounted wireless charger for a night light that was almost 10 years old that mushroomed the Li-On batt and fried the resistor (one of two). Everything else on the small CB looked OK. If the resistor works out I’ll test it and see if it will work.
Ken
kenshort66,
You are correct. It doesn’t matter if the resistor has 4 or 5 bands, as long as it is the correct ohm value and tolerance, and the wattage is large enough to handle the required power.
If the original resistor failed from overheating, I suspect the blue band was originally violet (red mixed with blue).
That would make it a standard 470k 5%, but given there’s usually no significant cost savings between 5% and 1% through hole resistors in low volume, I generally stick with 1% parts for most things anyway.
Yes, the resistor in question looked like a crispy critter, the Li-Ion batt was swollen to almost bursting size. The R4 on the right section is the one in question. I’m pretty sure that C3 and R3 are OK, but I have replacements just in case.
Thank you for your input, I do appreciate it. When I was working at FoMoCo I had a lot of electrical friends to “go-to” for information. Now that I’m retired I don’t have that luxury.
Ken
