Author Topic: 95k9 resistor where does it fit  (Read 2281 times)

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Offline CicadaTopic starter

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95k9 resistor where does it fit
« on: August 11, 2016, 12:02:40 pm »
Hello

This 95k9 resistor is available from rs. http://bit.ly/2aIX0Sx This is not a typo. Search for 95k9 in the datasheet. It is there. http://bit.ly/2aIXmZa
There is also a value 1 decade lower 9.59k http://bit.ly/2bjbzl5

I cannot find this resistor in the Standard EIA Decade Resistor Values Table based on IEC 60063. http://www.logwell.com/tech/components/resistor_values.html

My suspicion is that this value must be for the E192 0.25% or 0.1% standard values. Although both resistors are specified as 1% which is E96 in which it is not .

My question is. Where can I find the standard values in a decade for the E192 0.25% and 0.1% My assumption is that that all the E192 tables given is for 0.5%. Or does the tables have the same values for 0.25 and 0.1% in which case I do not know where a 95k9 or 9k59 resistor fits.

here are more examples of tables
https://www.bourns.com/pdfs/standard_decade_values_02.pdf
http://www.resistorguide.com/resistor-values/   This one say  E192 0.5, 0.25 and 0.1 % all share the same table

Thanks for illuminating me
 

Offline Siwastaja

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Re: 95k9 resistor where does it fit
« Reply #1 on: August 11, 2016, 01:13:07 pm »
Any manufacturer can - and in reality, do - manufacture any value resistors with any tolerances they want; they don't need to belong in any EIA group, although usually most resistors do.

That being said, I can't answer why they manufacture this particular value with this particular tolerance, but apparently it makes some business sense.
 

Offline azer

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Re: 95k9 resistor where does it fit
« Reply #2 on: August 11, 2016, 09:56:58 pm »
The value is according to the datasheet in their series in between 976 and 931 which are part of the E96 series.
Since 953 is in the E96, it might be a datasheet error where the 3->9 or there is some manufacturing reason for it.
 

Offline Kirr

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Re: 95k9 resistor where does it fit
« Reply #3 on: August 12, 2016, 12:46:16 am »
My suspicion is that this value must be for the E192 0.25% or 0.1% standard values. Although both resistors are specified as 1% which is E96 in which it is not .

My question is. Where can I find the standard values in a decade for the E192 0.25% and 0.1% My assumption is that that all the E192 tables given is for 0.5%. Or does the tables have the same values for 0.25 and 0.1% in which case I do not know where a 95k9 or 9k59 resistor fits.
The 192 in "E192" is the number of values spanning a decade. That's why regardless of tolerance, the nominal values are the same.

As you mention, manufacturers often use non-standard tolerance. For example, 1% E24 resistors are very popular. (E.g., see this link where they discuss this mystery).

95k9 is about in the middle between 95k3 and 96k5, so it could be a part of a hypothetical E384 series. No one is manufacturing this whole series, but perhaps some values are beginning to appear.
« Last Edit: August 12, 2016, 12:49:02 am by Kirr »
 
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Online amyk

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Re: 95k9 resistor where does it fit
« Reply #4 on: August 12, 2016, 01:00:51 am »
959 is right in the middle of two E192 values so it would be theoretically the "E384" series. All the odd values in this series (not in E192) are:
Quote
101, 102, 103, 104, 106, 107, 108, 109, 111, 112, 113, 115, 116, 118, 119, 120, 122, 123, 125, 126, 128, 129, 131, 133, 134, 136, 137, 139, 141, 142, 144, 146, 148, 149, 151, 153, 155, 157, 159, 161, 163, 164, 166, 168, 171, 173, 175, 177, 179, 181, 183, 185, 188, 190, 192, 195, 197, 199, 202, 204, 207, 209, 212, 214, 217, 219, 222, 225, 227,  230, 233, 236, 239, 241, 244, 247, 250, 253, 256, 259, 263, 266, 269,  272, 275, 279, 282, 286, 289, 293, 296, 300, 303, 307, 311, 314, 318,  322, 326, 330, 334, 338, 342, 346, 350, 354, 359, 363, 367, 372, 376,  381, 385, 390, 395, 400, 404, 409, 414, 419, 424, 429, 435, 440, 445,  450, 456, 461, 467, 473, 478, 484, 490, 496, 502, 508, 514, 520, 526,  533, 539, 546, 552, 559, 566, 573, 579, 586, 594, 601, 608, 615, 623,  630, 638, 645, 653, 661, 669, 677, 685, 694, 702, 710, 719, 728, 737,  745, 754, 764, 773, 782, 791, 801, 811, 820, 830, 840, 851, 861, 871,  882, 892, 903, 914, 925, 936, 947, 959, 970, 982, 994
and indeed you can find resistors of the other values in that list, like 871, 728, 947, and 994.

That's not the most unusual values you can find though, here is (a rather expensive) 635.359 ohms resistor:
http://www.digikey.com/product-detail/en/vishay-foil-resistors-division-of-vishay-precision-group/Y1751635R359U9L/Y1751635R359U9L-ND/4232671
 
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