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Parallel Resistor Values Table

 Parallel Resistor Values Table

It is relatively easy to calculate the overall resiatance of two resistors in parallel. Bu when wanting to make up another value it is often handy to be able to refer to a table of pre-calculated values to discover the best options.

This table provides a list of resistor values that can be created from preferred resistor values.

This can be very useful when trying to obtain an exact resistor value when the required ones are not available.

Parallel resistor values table

The table below gives values for resistors in parallel for a variety of values in the various tolerance, E-series categories.

Column A gives the required resistor value, and column B gives the first choice combination for the parallel resistors. A second choice is shown in column C. The values should be a close tolerance as possible, typically 0.5%.

The table below provides resistor values using standard values, even if they are in a higher tolerance series, E series than might otherwise be used.

Parallel resistor values table
Required resistor value "A"First selection of resistors "B"Alternative selection of resistors "C"
10.01011110
11.01112130
12.01213150
13.01315100
14.01611015220
15.01516240
16.0162739
17.0227518300
18.01820180
19.0249120390
20.02022220
22.02224270
23.0395624560
24.02427220
25.03015027330
26.02768030200
27.02730270
28.0516230430
29.03324030910
30.03033330
31.03351039150
32.047100331100
33.03336390
34.0686816275
35.036120039330
36.03639470
37.03975043270
38.039150043330
39.0396891
40.04727043560
41.0828243910
42.043180062130
43.04347510
44.04768062150
45.082100471100
46.047220051470
47.04782110
48.05182056330
49.056390511300
50.07515056470
51.05156560
52.06822056750
53.068240561000
54.056150062430
55.0110110563000
56.05675220
57.07524062680
58.09116062910
59.0621200621300
60.06851075300
62.06275360
64.068110075430
66.091240682200
68.06891270
70.082470751000
72.0751800120180
74.075560082750
76.082100091470
78.0621600110270
80.0120240823300
82.08291620
84.0911100110360
86.0100620911500
88.0120330912700
90.0120360918200
92.0110560120390
94.01001600120430
96.01002400110750
98.01005100110910

Using the table of parallel resistor values it is possible to see the best options that are available to make a resistor value from two other resistors in parallel.


Watch the video: Calculating Total Resistance in Series and Parallel Circuits (December 2021).