# Need Help Identify a Capacitor and a Resistor

#### trihai

Oct 15, 2017
9
Hi all,

I need help to identify a capacitor and a resistor:

1- The round, brown one: Is that a capacitor? What is 12M? I can't find anything like that online. What would be a sub for it?

2- I have a hard time to read the 5 band resistor. If I start with the first band as Brown, it should be 14 KOhm +/- 2%. Is it correct?

Went to Fry's Electronic tonight but could not find anything similar.

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#### (*steve*)

##### ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
Moderator
Jan 21, 2010
25,508
The first image is a diode (the glass thing) and a capacitor. Possible 12pF capacitor ±20% tolerance. My guess would be 50V or higher voltage rating.

The next image is 2 diodes of some type and 2 resistors. The resistors look to be 1/2 W and 1/4W (or maybe 1/4W and 1/8W) assuming a normal size of diode in this type of package. The resistors are 14k 2% and 220Ω 2%

Any other questions?

Moderator
Jan 21, 2010
25,508

#### trihai

Oct 15, 2017
9
The first image is a diode (the glass thing) and a capacitor. Possible 12pF capacitor ±20% tolerance. My guess would be 50V or higher voltage rating.

The next image is 2 diodes of some type and 2 resistors. The resistors look to be 1/2 W and 1/4W (or maybe 1/4W and 1/8W) assuming a normal size of diode in this type of package. The resistors are 14k 2% and 220Ω 2%

Any other questions?
Hi Steve,
Thank you for your responses. I just realized that my original photos included other component. I need to replace the 12M capacitor and the resistor, but can't find anywhere. Could you recommend?

Oct 15, 2017
9

#### 73's de Edd

Aug 21, 2015
3,477
Some one here . . . .

Disc ceramic capacitor 12 picofarads at +/- 20 % tolerance rating . . . . . . probability of that unit of being good is. . . . >> > > > > 99 86/100ths percent.

Resistor . . . . . that you seem to be dissing, just because it has 1 lead broken . Probably is also good.

First bands color . . . . . . RED for 2
Second bands color. . . . RED for 2
Third bands color. . . . . . BLACK for 0
Fourth bands color. . . . .YELLOW for adding four 0's
Last bands color . . . . . . .BROWN

SUMMATION . . . . .

2,200,000 for
2.2 megohms at a qualifying . . . . BROWN band being 2% tolerance.

Look two diodes to the left and it looks like ther may be a duplicate resistor that you can comparatively ohm against . . . .but being up in the megs, probably will have to have one lead out of circuit for resistive / floating isolation.

The "good" resistor could be repaired by taking some bare tinned wire of the gauge that is being on the diodes.
Use fresh solder and rosin flux to totally tin all of the broken resistors remaining lead stub.
Hold one end of the new wire to the side of the resistor body and start close and tight winding around the stub till you reach its end . The wire combo then gets reflow solder tinned .
Clip the left end of the new wire flush at its start at the resistor body, then bend the new wires floating end 90 degrees down and pull the old resistor wire remnant out of the board an insert the "new" lead down into its board cavity and reflow solder.

Thassssssssit . . . . .

73's de Edd

Last edited:

#### (*steve*)

##### ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
Moderator
Jan 21, 2010
25,508
12pF ceramic cap, and maybe a 15k resistor.

I'd measure the resistor with a multimeter though. It's possible to read it the other way around, although I'm pretty sure it's what I suggest.

#### (*steve*)

##### ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
Moderator
Jan 21, 2010
25,508
Brown is 1%. It's a pity the op removed the other pictures. The other resistor was 2%.

But I'd measure it in any case.

Also the brown band looks wider, and 1.4 is a standard E48 value.

#### trihai

Oct 15, 2017
9
For the 5 band resistor, I don't know how to read it. So the first band is red, not brown?

I could not find anything similar at Frys and online, so I might reuse it. Even though I like to use a new one better.

So, the capacitor is a 12 picofarads +/- 20 % and the resistor is a 2.2 M +/- 2%.

#### (*steve*)

##### ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
Moderator
Jan 21, 2010
25,508
Unfortunately the 5 band resistor makes sense reading it either way around.

Do any bands look wider than the others?

Do you have a multimeter?

#### trihai

Oct 15, 2017
9
Unfortunately the 5 band resistor makes sense reading it either way around.

Do any bands look wider than the others?

Do you have a multimeter?

I have a cheap multimeter. I set it at 20kohm and it read around 5.2.

The black band looks thinner, but other bands are same.

Last edited by a moderator:

#### (*steve*)

##### ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
Moderator
Jan 21, 2010
25,508
I have a cheap multimeter. I set it at 20kohm and it read around 5.2.

Were you touching the metal parts of the probes or the wires when making the measurement?

#### trihai

Oct 15, 2017
9
Were you touching the metal parts of the probes or the wires when making the measurement?
I touched the metal parts of the probes.

#### (*steve*)

##### ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
Moderator
Jan 21, 2010
25,508
Do it again without touching the metal parts of the probes or the leads of the resistor.

#### trihai

Oct 15, 2017
9
Do it again without touching the metal parts of the probes or the leads of the resistor.
No reading when not touching the metal part. The reading when touching the metal part is still 5.25. I tried other similar resistor but have no reading. Maybe my meter is suck (Soundwire).

#### (*steve*)

##### ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
Moderator
Jan 21, 2010
25,508
I meant without your fingers touching the metal parts.

The metal parts of the probe need to touch the metal wires extending from the resistor, one probe on each end.

If you have to, you can use your fingers to hold the metal part of the probe to a wire, but only on one end of the resistor. If you touch both probes (the metal parts) you will measure the resistance through your body which can affect the accuracy of your reading.

#### kellys_eye

Jun 25, 2010
5,503
I see 2.2MΩ and 12pF.

More to the point, can you show us more of the circuit board or at least tell us where/how the parts are being used and why you think they are defective (apart from the broken lead, obviously).

#### trihai

Oct 15, 2017
9
Today I decided to buy a Fluke 179. I confirm that the resistor is 2.2 M Ohm. I used a caliper to measure the width and it reads 0.375 inches which equals to 1/2 Watt (a guy shows this method on YouTube). I found an Ebay seller who has 2.2 M ohm +/-1% 1 Watt. Should I use those resistor? I guess a higher wattage would be better, correct? There is some Ebay seller who has 2.2 M ohm 1/2 Watt, but the tolerance is +/- 5%.

The Fluke 179 only read nF and Micro F so I can't confirm the capacitor.

#### FuZZ1L0G1C

Mar 25, 2014
366
Broken 5-band resistor value:
Red band is on left nearest lead.
Right Brown band is 1% not 2% which would be red.
@73's de Ed has Rval correct at 2M2 220*(10^4)
Comparing size with nearby components it's 1/8W rating.
So a 2M2 1% 1/8W metallised (blue body) resistor.
Wrapped thin copper strand from ripcord can help to hold R. lead in place while repairing broken stub.

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