Chip Resistor E24 and E96 Values by Tolerance for Poland: 0 of 30,498 Five-Percent Rows Sit on an E96 Value

Chip resistor E96 values by tolerance split cleanly: of 222,907 rows we classified, 0 of the 30,498 at ±5 percent sit on an E96 value. Five percent parts use 24 values per decade; ±0.1 to ±2 percent parts use 114. A Polish BOM line relaxed from 4.75 kilohm to 5 percent finds no row.

Venatech Limited, an authorised Walsin distributor in Hong Kong, holds the 137 chip resistor export files published by Walsin Technology (Walsin). This post is written from the Resistance and Tolerance columns of those files. We took each resistance, reduced it to its mantissa between 1.00 and 9.99, and checked it against the E24 and E96 ladders. We read, among others, HighPower__tol1__ONE_FIFTH_W.xlsx, HighPower__tol5__ONE_FIFTH_W.xlsx, Thick_Film_Chip_Resistor_Array__1of1.xlsx and Thick_Film_Anti_Surge_Chip_Resistor_10.xlsx. Every part number below is real. The question is a common one on a Polish assembly line: can a tight line be relaxed to a looser tolerance and keep its value?

Which resistance values does a 5 percent Walsin chip resistor come in?

Twenty-four per decade, and no others. We parsed all 234,815 rows, set aside 148 that are jumpers or attenuator decibel values and 11,760 current sense rows (their milliohm values do not follow a decade ladder), and classified the remaining 222,907. All 30,498 rows at ±5 percent, across 38 series and 217 distinct values, land on the 24 E24 positions. Not one lands on a value that exists only in E96.

We have not seen this counted anywhere. The five tight tolerances share one split: 78.5 to 78.8 percent of rows on E96-only values, the rest on E24. The ladder in use is a function of tolerance, not of series. The 114 positions are the 96 of E96 plus the 24 of E24, less the 6 they share. The one extra position at 0.25, 0.5 and 1 percent comes from 18 off-ladder rows, covered in our post on part numbers that contradict their own code.

How much of the 1 percent catalogue sits on E96 values?

Just over three quarters. The ±1 percent population is the largest tolerance in the files. We counted it row by row. Of 131,936 rows at ±1 percent, 103,509 sit on E96-only values (78.5 percent) and 28,421 sit on E24 values (21.5 percent). 914 distinct resistances are offered at 1 percent against 217 at 5 percent. The earlier view cut this by series group; see E24 vs E96 Walsin resistor values. The tolerance cut shows what the series cut cannot: the E96 values are concentrated in the 1 percent and tighter rows by construction.

A 1 percent line on a drawing is more likely to name an E96 value than an E24 one. 33 of the 38 series offered at ±1 percent carry E96 values. Thick Film High Power Chip Resistor, High Precision TC50 and the general purpose series all do. The other five are covered below.

What happens if you relax a 1 percent E96 line to 5 percent?

The value disappears. We probed the files with three values a designer might write on a BOM line. 4.75 kilohm exists from ±0.1 to ±2 percent (271 rows) and at no looser tolerance: 0 rows at ±5, ±10, ±20 percent or the trimmable bands. 4.7 kilohm exists at both ends.

The 5 percent 4.7 kilohm row comes from HighPower__tol5__ONE_FIFTH_W.xlsx and the 1 percent rows from HighPower__tol1__ONE_FIFTH_W.xlsx. Relaxing the tolerance is not a drop-in. It is a different value, and the closest E24 neighbour changes the circuit. We make no claim here about whether the circuit tolerates it. That is your qualification. Of the 217 values offered at 5 percent, 193 are also offered at 1 percent; the other 24 are all below 1 ohm, between 0.1 and 0.91 ohm. So the reverse move, from a 5 percent E24 value up to a 1 percent part, finds the value every time at 1 ohm and above.

Which 1 percent series carry no E96 values at all?

Five, and all are small arrays. We grouped the ±1 percent rows by series and counted the E96-only share. Five array series carry 546 rows at ±1 percent and every one is on an E24 value: the 02012 Flat, 02014 Flat, 04022 Convex, 04024 Concave and 0603*2 Convex. The other array series are not restricted: 7,195 further array rows at ±1 percent are 78.8 percent E96-only.

The array rows come from Thick_Film_Chip_Resistor_Array__1of1.xlsx. An array is the family where a 4.75 kilohm line is most likely to be asked for and least likely to exist. WA04Y4701FTL is in the 04022 Convex array and its 4.75 kilohm neighbour is not. WA04X4751FTL does carry 4.75 kilohm, in a different array: the 04024 Convex array, which the export names Convex type with a lower-case t, a separate series string from Convex Type. For the array structure itself, see chip resistor arrays.

Are the 10 and 20 percent rows on E12 values?

Not entirely. The ±10 and ±20 percent rows are the anti-surge series only, 2,780 rows each. We checked them against the 12 E12 positions. 1,398 rows of each sit on E12 values and the other 1,382 sit on E24 values that are not in E12. Both tolerances use 24 positions, the same ladder as 5 percent, with no step down to 12.

So a 10 percent anti-surge line is not limited to E12 values. A designer who assumes E12 at 10 percent will find 1,382 rows more than expected, such as WK25SR300KTL at 0.3 ohm in the 2512 anti-surge series. The three trimmable tolerance bands show the same 24 positions. For what the series is rated to survive, see anti-surge chip resistors.

What should a Polish buyer check before changing a tolerance?

That the value still exists at the new tolerance, as a number and not as a string. Our free cross-reference tool states every difference from your original part, tolerance and value included, rather than a single tick. Three checks, each measured above:

1. A 5 percent line cannot hold an E96-only value. 0 of 30,498 rows do.
2. A 1 percent line has a 78.5 percent chance of being E96-only, so check before assuming an E24 neighbour is acceptable.
3. For arrays, check the series. Five array series have no E96 values at 1 percent, 546 rows in all.

We hold 28 Walsin datasheets, 451 pages, and only two cover chip resistors, WR and MR. Which E-series Walsin states for a part is not in the documents we hold beyond the export. The range sits on the chip resistor page, and the stock Hong Kong holds is on ready stock — 1,125 part numbers as at 23 September 2026, a dated snapshot and not a live feed.

The short version

We parsed all 234,815 chip resistor rows and classified 222,907 against the E24 and E96 ladders. The ladder is set by tolerance: 0 of 30,498 rows at ±5 percent sit on an E96 value, and 24 positions per decade are used. From ±0.1 to ±2 percent, 78.5 to 78.8 percent of rows sit on E96-only values across 114 positions. 4.75 kilohm exists from ±0.1 to ±2 percent and at no looser tolerance. Five array series hold 546 rows at 1 percent and not one E96 value. We will not tell you a part matches because the value is near. We will show you the rows the file holds. Confirm against both datasheets and qualify in your own circuit.

Send us the value and tolerance off your BOM line and we will show which tolerances the export holds for it. And a question back: when you relaxed a 1 percent line to 5 percent, did you check that the value still existed, or only that the part number resolved?

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